Merge pull request 'sprint/2-simulations' (#3) from sprint/2-simulations into main

Reviewed-on: #3

CHANGELOG.md

@@ -6,7 +6,39 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/)
 
 ## [Unreleased]
 
-### Added — Sprint 1 (Auth + CRUD Engagement)
+### Added — Sprint 2 (Simulations + MITRE ATT&CK)
+
+**Backend** (Flask + SQLAlchemy, 131 pytest passing)
+- `Simulation` model with redteam-side (`name`, `mitre_technique_id`, `mitre_technique_name`, `description`, `commands`, `prerequisites`, `executed_at`, `execution_result`) and SOC-side (`log_source`, `logs`, `soc_comment`, `incident_number`) fields, plus `status` enum (`pending` / `in_progress` / `review_required` / `done`), FK to `Engagement` (cascade delete) and `User` (creator).
+- Alembic migration `0002_add_simulations.py`.
+- 7 new endpoints: `GET/POST /api/engagements/<eid>/simulations`, `GET/PATCH/DELETE /api/simulations/<sid>`, `POST /api/simulations/<sid>/transition`, `GET /api/mitre/techniques?q=`.
+- `simulation_workflow` service: field-level RBAC (SOC blocked when status ∈ {pending, in_progress}; SOC rejected if payload contains a redteam field), state machine (only forward transitions, validated by role), and auto-transition `pending → in_progress` when admin/redteam saves any non-empty redteam field.
+- `mitre` service: STIX 2.1 Enterprise bundle loaded at boot, indexed by T-id + name + tactic. Ranked search (`exact-id > prefix-id > substring-name`), max 20 results. Includes sub-techniques (`T1059.001`). Boot-safe: missing/corrupt bundle logs a warning and the endpoint returns 503 instead of crashing the app.
+- `make update-mitre` is now a real target — fetches the upstream STIX bundle and restarts the container if running. Bundle is committed at `backend/data/mitre/enterprise-attack.json` (~46 MB) so `make build` stays self-contained.
+- Upfront validation of `executed_at` (no partial mutation on parse failure).
+
+**Frontend** (React + TanStack Query, 63 vitest passing)
+- `SimulationList` component rendered inside `EngagementDetailPage` (replaces the Sprint 1 placeholder). Columns: name, MITRE id, status badge, executed_at. Row click → SPA navigation via `useNavigate` (no full reload).
+- `SimulationFormPage` (`/engagements/:eid/simulations/new` and `/engagements/:eid/simulations/:sid/edit`): single role-aware page with two cards ("Red Team" / "SOC"). Redteam/admin can edit all fields; SOC sees the redteam card as read-only and the SOC card disabled (with an explanatory banner) until status reaches `review_required`. Footer surfaces context-appropriate transition buttons ("Marquer en revue" / "Clôturer") and a confirmation modal for delete.
+- `MitreTechniquePicker`: debounced (200 ms) autocomplete input with keyboard navigation (↑↓ / Enter / Escape), listbox accessibility, and an inline 503 error path. Selection populates both `mitre_technique_id` and `mitre_technique_name`. A `hasHydratedFromProps` ref prevents the input from being wiped mid-stroke when the parent emits `onChange(null, null)`.
+- `SimulationStatusBadge`: 4 variants mapped to DESIGN.md tokens (`bg-fog`, `bg-primary-soft`, `bg-bloom-coral`, `bg-storm-deep`). Sibling of the existing `StatusBadge` rather than a forked generic — the two badges share visual scaffolding but their enums diverge.
+- `ConfirmDialog`: generic modal used by the delete flow.
+- TanStack Query hooks: `useEngagementSimulations`, `useSimulation`, `useCreateSimulation`, `useUpdateSimulation`, `useDeleteSimulation`, `useTransitionSimulation`, `useMitreSearch`. Mutations invalidate both the simulation detail key and the engagement-scoped list key.
+
+**Acceptance tests** (Playwright, 68 specs)
+- 6 new spec files (one per user story US-7 → US-12), 32 tests, all green.
+- `us4-engagements.spec.ts` AC-4.9 assertion refreshed: the Sprint 1 placeholder text was correctly replaced by the new `SimulationList` (the test now asserts the new heading + "Nouvelle simulation" link).
+- 5 pre-existing failures in `us1-bootstrap-admin.spec.ts` and `us6-deployment.spec.ts` remain — they hard-code `docker` in the test body and fail in dev environments that only have `podman`. The fixtures already support `MIMIC_CONTAINER_CMD`; the test bodies don't yet. Out of scope for Sprint 2 — to be picked up later.
+
+### Changed
+- 2026-05-26 — `make update-mitre` upgraded from no-op placeholder to a real `curl` + optional container restart (Sprint 1 marker resolved).
+- 2026-05-26 — `EngagementDetailPage` no longer renders the "Simulations à venir au Sprint 2" placeholder; it embeds `<SimulationList>` instead.
+
+---
+
+## [Sprint 1] — Auth + CRUD Engagement (merged 2026-05-26)
+
+### Added
 
 **Backend** (Flask + SQLAlchemy + SQLite, 63 pytest passing)
 - `User` model with `admin / redteam / soc` enum, argon2 password hashing.

Makefile

@@ -32,8 +32,16 @@ ifndef PASS
 endif
 	docker exec $(CONTAINER) flask create-admin $(USER) $(PASS)
 
+MITRE_URL ?= https://raw.githubusercontent.com/mitre/cti/master/enterprise-attack/enterprise-attack.json
+
 update-mitre:
-	@echo "MITRE update: Sprint 2+"
+	@mkdir -p backend/data/mitre
+	@curl -fsSL "$(MITRE_URL)" -o backend/data/mitre/enterprise-attack.json
+	@echo "MITRE bundle updated"
+	@if docker ps --format '{{.Names}}' | grep -q "^$(CONTAINER)$$"; then \
+		echo "Restarting $(CONTAINER) to reload MITRE bundle..."; \
+		docker restart $(CONTAINER); \
+	fi
 
 test-backend:
 	docker exec $(CONTAINER) pytest -q backend/tests/

README.md

@@ -2,7 +2,7 @@
 
 **Mimic** is a Breach and Attack Simulation (BAS) web UI built on the MITRE ATT&CK matrix. It replaces the flat Excel spreadsheets that red-teams and SOC analysts pass around at the end of an engagement, providing a shared workspace for Purple Team handoffs.
 
-> Status: **Sprint 1 — Auth + CRUD Engagement**. Simulation workflow and MITRE TTP autocomplete arrive in Sprint 2+.
+> Status: **Sprint 2 — Simulations + MITRE ATT&CK**. The Purple Team workflow (RedTeam fills test → marks for review → SOC documents detection → closes) is now end-to-end testable in the UI, with MITRE technique autocomplete for TTP tagging.
 
 ---
 
@@ -56,7 +56,8 @@ Single-container deployment. A multistage Dockerfile builds the Vite frontend, t
 │                                           │
 │  Flask (Python 3.12)                      │
 │   ├── /api/* ── blueprints (auth, users,  │
-│   │              engagements)             │
+│   │              engagements, simulations,│
+│   │              mitre)                   │
 │   └── /     ── SPA fallback → React build │
 │                                           │
 │  SQLAlchemy ── SQLite at /data/mimic.sqlite │
@@ -65,9 +66,11 @@ Single-container deployment. A multistage Dockerfile builds the Vite frontend, t
 ```
 
 - **Auth**: JWT Bearer tokens (HS256, 60-min TTL). Stateless — no refresh tokens, no server-side session.
-- **Roles**: `admin` (super-user, manages users + engagements), `redteam` (CRUD engagements + simulations), `soc` (read engagements; will write the SOC half of simulations in Sprint 2).
+- **Roles**: `admin` (super-user — cumulates redteam rights on engagements/simulations), `redteam` (CRUD engagements + simulations, full field access), `soc` (read everything, write-only on the SOC half of simulations once the redteam marks them `review_required`).
 - **Password hashing**: argon2 via `argon2-cffi`.
 - **Migrations**: Alembic, applied automatically by the container entrypoint (`flask db upgrade && flask run`).
+- **MITRE ATT&CK**: STIX 2.1 Enterprise bundle committed at `backend/data/mitre/enterprise-attack.json` and indexed at app boot. `make update-mitre` re-fetches the latest bundle and (if the container is running) restarts it to reload the index. The endpoint `GET /api/mitre/techniques?q=` powers the autocomplete on simulations.
+- **Simulation workflow**: Pending → In progress (auto-transition when redteam saves any non-empty field) → Review required (manual, redteam) → Done (manual, redteam or SOC). The state machine is enforced server-side; the UI surfaces the appropriate transition button per role + current state.
 
 See [`SPEC.md`](SPEC.md) § "Décisions techniques" for the full architecture rationale and [`DESIGN.md`](DESIGN.md) for the UI design system.
 
@@ -102,7 +105,7 @@ mimic/
 | `make update` | `git pull && make build && make restart` |
 | `make logs` | `docker logs -f mimic` |
 | `make create-admin USER=… PASS=…` | Run `flask create-admin` inside the container |
-| `make update-mitre` | No-op placeholder — Sprint 2+ will fetch the MITRE STIX bundle |
+| `make update-mitre` | Fetch the latest MITRE STIX 2.1 Enterprise bundle into `backend/data/mitre/`; auto-restart the container if running. Commit the resulting file change manually. |
 | `make test-backend` | `pytest -q` inside the container |
 | `make test-frontend` | `npm run test -- --run` in `frontend/` |
 | `make test-e2e` | Playwright acceptance suite (container must be running) |
@@ -135,9 +138,9 @@ npm run dev          # http://localhost:5173 with /api proxied to :5000
 Tests:
 
 ```bash
-cd backend && pytest -q                # 63 tests
+cd backend && pytest -q                # 131 tests
-cd frontend && npm run test -- --run   # 20 tests
+cd frontend && npm run test -- --run   # 63 tests
-cd e2e && npx playwright test          # 36 tests (needs container up)
+cd e2e && npx playwright test          # 68 tests (needs container up)
 ```
 
 ---

backend/app/__init__.py

@@ -6,7 +6,7 @@ from pathlib import Path
 
 from flask import Flask, jsonify, send_from_directory
 
-from backend.app.api import auth_bp, engagements_bp, users_bp
+from backend.app.api import auth_bp, engagements_bp, simulations_bp, users_bp
 from backend.app.cli import register_cli
 from backend.app.config import Config, TestConfig
 from backend.app.errors import register_error_handlers
@@ -36,6 +36,10 @@ def create_app(config_object: object | None = None) -> Flask:
     app.register_blueprint(auth_bp)
     app.register_blueprint(users_bp)
     app.register_blueprint(engagements_bp)
+    app.register_blueprint(simulations_bp)
+
+    from backend.app.services import mitre as mitre_svc
+    mitre_svc.load_bundle()
 
     register_error_handlers(app)
     register_cli(app)

backend/app/api/__init__.py

@@ -1,6 +1,7 @@
 """API blueprints."""
 from backend.app.api.auth import auth_bp
 from backend.app.api.engagements import engagements_bp
+from backend.app.api.simulations import simulations_bp
 from backend.app.api.users import users_bp
 
-__all__ = ["auth_bp", "users_bp", "engagements_bp"]
+__all__ = ["auth_bp", "users_bp", "engagements_bp", "simulations_bp"]

backend/app/api/simulations.py

@@ -0,0 +1,138 @@
+"""Simulation CRUD + workflow endpoints."""
+from __future__ import annotations
+
+from datetime import UTC, datetime
+
+from flask import Blueprint, g, jsonify, request
+
+from backend.app.auth import login_required, role_required
+from backend.app.extensions import db
+from backend.app.models import Engagement
+from backend.app.models.simulation import Simulation, SimulationStatus
+from backend.app.serializers import serialize_simulation
+from backend.app.services import simulation_workflow
+
+simulations_bp = Blueprint("simulations", __name__)
+
+
+# ---------------------------------------------------------------------------
+# Nested under /api/engagements/<eid>/simulations
+# ---------------------------------------------------------------------------
+
+
+@simulations_bp.get("/api/engagements/<int:eid>/simulations")
+@login_required
+def list_simulations(eid: int):
+    engagement = db.session.get(Engagement, eid)
+    if engagement is None:
+        return jsonify({"error": "Engagement not found"}), 404
+    sims = (
+        Simulation.query.filter_by(engagement_id=eid)
+        .order_by(Simulation.created_at.desc())
+        .all()
+    )
+    return jsonify([serialize_simulation(s) for s in sims]), 200
+
+
+@simulations_bp.post("/api/engagements/<int:eid>/simulations")
+@role_required("admin", "redteam")
+def create_simulation(eid: int):
+    engagement = db.session.get(Engagement, eid)
+    if engagement is None:
+        return jsonify({"error": "Engagement not found"}), 404
+
+    data = request.get_json(silent=True) or {}
+    name = (data.get("name") or "").strip()
+    if not name:
+        return jsonify({"error": "name is required"}), 400
+
+    sim = Simulation(
+        engagement_id=eid,
+        name=name,
+        status=SimulationStatus.PENDING,
+        created_at=datetime.now(UTC),
+        created_by_id=g.current_user.id,
+    )
+    db.session.add(sim)
+    db.session.commit()
+    return jsonify(serialize_simulation(sim)), 201
+
+
+# ---------------------------------------------------------------------------
+# Flat /api/simulations/<sid>
+# ---------------------------------------------------------------------------
+
+
+@simulations_bp.get("/api/simulations/<int:sid>")
+@login_required
+def get_simulation(sid: int):
+    sim = db.session.get(Simulation, sid)
+    if sim is None:
+        return jsonify({"error": "Simulation not found"}), 404
+    return jsonify(serialize_simulation(sim)), 200
+
+
+@simulations_bp.patch("/api/simulations/<int:sid>")
+@login_required
+def update_simulation(sid: int):
+    sim = db.session.get(Simulation, sid)
+    if sim is None:
+        return jsonify({"error": "Simulation not found"}), 404
+
+    user = g.current_user
+    data = request.get_json(silent=True) or {}
+    if not data:
+        return jsonify(serialize_simulation(sim)), 200
+
+    err = simulation_workflow.apply_patch(sim, data, user)
+    if err is not None:
+        return err
+
+    db.session.commit()
+    return jsonify(serialize_simulation(sim)), 200
+
+
+@simulations_bp.delete("/api/simulations/<int:sid>")
+@role_required("admin", "redteam")
+def delete_simulation(sid: int):
+    sim = db.session.get(Simulation, sid)
+    if sim is None:
+        return jsonify({"error": "Simulation not found"}), 404
+    db.session.delete(sim)
+    db.session.commit()
+    return "", 204
+
+
+@simulations_bp.post("/api/simulations/<int:sid>/transition")
+@login_required
+def transition_simulation(sid: int):
+    sim = db.session.get(Simulation, sid)
+    if sim is None:
+        return jsonify({"error": "Simulation not found"}), 404
+
+    data = request.get_json(silent=True) or {}
+    to_status = data.get("to", "")
+
+    err = simulation_workflow.transition(sim, to_status, g.current_user)
+    if err is not None:
+        return err
+
+    return jsonify(serialize_simulation(sim)), 200
+
+
+# ---------------------------------------------------------------------------
+# MITRE autocomplete
+# ---------------------------------------------------------------------------
+
+
+@simulations_bp.get("/api/mitre/techniques")
+@login_required
+def mitre_techniques():
+    from backend.app.services import mitre as mitre_svc
+
+    if not mitre_svc.mitre_loaded:
+        return jsonify({"error": "mitre bundle not loaded"}), 503
+
+    q = request.args.get("q", "").strip()
+    results = mitre_svc.search(q)
+    return jsonify(results), 200

backend/app/models/__init__.py

@@ -1,5 +1,6 @@
 """SQLAlchemy models."""
 from backend.app.models.engagement import Engagement, EngagementStatus
+from backend.app.models.simulation import Simulation, SimulationStatus
 from backend.app.models.user import User, UserRole
 
-__all__ = ["User", "UserRole", "Engagement", "EngagementStatus"]
+__all__ = ["User", "UserRole", "Engagement", "EngagementStatus", "Simulation", "SimulationStatus"]

backend/app/models/simulation.py

@@ -0,0 +1,62 @@
+"""Simulation model."""
+from __future__ import annotations
+
+import enum
+from datetime import UTC, datetime
+
+from backend.app.extensions import db
+
+
+class SimulationStatus(str, enum.Enum):
+    PENDING = "pending"
+    IN_PROGRESS = "in_progress"
+    REVIEW_REQUIRED = "review_required"
+    DONE = "done"
+
+
+class Simulation(db.Model):  # type: ignore[name-defined]
+    __tablename__ = "simulations"
+
+    id = db.Column(db.Integer, primary_key=True)
+    engagement_id = db.Column(
+        db.Integer,
+        db.ForeignKey("engagements.id", ondelete="CASCADE"),
+        nullable=False,
+        index=True,
+    )
+    name = db.Column(db.String(255), nullable=False)
+    mitre_technique_id = db.Column(db.String(32), nullable=True)
+    mitre_technique_name = db.Column(db.String(255), nullable=True)
+    description = db.Column(db.Text, nullable=True)
+    commands = db.Column(db.Text, nullable=True)
+    prerequisites = db.Column(db.Text, nullable=True)
+    executed_at = db.Column(db.DateTime, nullable=True)
+    execution_result = db.Column(db.Text, nullable=True)
+    log_source = db.Column(db.Text, nullable=True)
+    logs = db.Column(db.Text, nullable=True)
+    soc_comment = db.Column(db.Text, nullable=True)
+    incident_number = db.Column(db.String(128), nullable=True)
+    status = db.Column(
+        db.Enum(SimulationStatus, name="simulation_status"),
+        nullable=False,
+        default=SimulationStatus.PENDING,
+    )
+    created_at = db.Column(
+        db.DateTime, nullable=False, default=lambda: datetime.now(UTC)
+    )
+    updated_at = db.Column(db.DateTime, nullable=True)
+    created_by_id = db.Column(
+        db.Integer,
+        db.ForeignKey("users.id", ondelete="RESTRICT"),
+        nullable=False,
+        index=True,
+    )
+
+    engagement = db.relationship(
+        "Engagement",
+        backref=db.backref("simulations", cascade="all, delete-orphan", lazy="dynamic"),
+    )
+    created_by = db.relationship("User", backref="simulations", lazy="joined")
+
+    def __repr__(self) -> str:
+        return f"<Simulation {self.id} {self.name!r}>"

backend/app/serializers.py

@@ -4,6 +4,7 @@ from __future__ import annotations
 from typing import Any
 
 from backend.app.models import Engagement, User
+from backend.app.models.simulation import Simulation
 
 
 def serialize_user(user: User) -> dict[str, Any]:
@@ -19,6 +20,31 @@ def serialize_user_brief(user: User) -> dict[str, Any]:
     return {"id": user.id, "username": user.username}
 
 
+def serialize_simulation(simulation: Simulation) -> dict[str, Any]:
+    return {
+        "id": simulation.id,
+        "engagement_id": simulation.engagement_id,
+        "name": simulation.name,
+        "mitre_technique_id": simulation.mitre_technique_id,
+        "mitre_technique_name": simulation.mitre_technique_name,
+        "description": simulation.description,
+        "commands": simulation.commands,
+        "prerequisites": simulation.prerequisites,
+        "executed_at": simulation.executed_at.isoformat() if simulation.executed_at else None,
+        "execution_result": simulation.execution_result,
+        "log_source": simulation.log_source,
+        "logs": simulation.logs,
+        "soc_comment": simulation.soc_comment,
+        "incident_number": simulation.incident_number,
+        "status": simulation.status.value,
+        "created_at": simulation.created_at.isoformat() if simulation.created_at else None,
+        "updated_at": simulation.updated_at.isoformat() if simulation.updated_at else None,
+        "created_by": serialize_user_brief(simulation.created_by)  # type: ignore[arg-type]
+        if simulation.created_by
+        else None,
+    }
+
+
 def serialize_engagement(engagement: Engagement) -> dict[str, Any]:
     return {
         "id": engagement.id,

backend/app/services/mitre.py

@@ -0,0 +1,100 @@
+"""MITRE ATT&CK bundle loader and search service."""
+from __future__ import annotations
+
+import json
+import logging
+from pathlib import Path
+from typing import Any
+
+logger = logging.getLogger(__name__)
+
+# Absolute path to the committed bundle.
+_BUNDLE_PATH = Path(__file__).parent.parent.parent / "data" / "mitre" / "enterprise-attack.json"
+
+mitre_loaded: bool = False
+_index: list[dict[str, Any]] = []
+
+
+def _extract_tactics(obj: dict[str, Any]) -> list[str]:
+    phases = obj.get("kill_chain_phases") or []
+    return [
+        p["phase_name"]
+        for p in phases
+        if isinstance(p, dict) and "phase_name" in p
+    ]
+
+
+def _get_external_id(obj: dict[str, Any]) -> str | None:
+    for ref in obj.get("external_references") or []:
+        if isinstance(ref, dict) and ref.get("source_name") == "mitre-attack":
+            return ref.get("external_id")
+    return None
+
+
+def load_bundle(path: Path | None = None) -> None:
+    """Load the MITRE bundle into memory. Called once at app boot."""
+    global mitre_loaded, _index
+    bundle_path = path or _BUNDLE_PATH
+
+    try:
+        raw = bundle_path.read_text(encoding="utf-8")
+        data = json.loads(raw)
+    except FileNotFoundError:
+        logger.warning("MITRE bundle not found at %s — autocomplete disabled", bundle_path)
+        mitre_loaded = False
+        return
+    except (json.JSONDecodeError, OSError) as exc:
+        logger.warning("MITRE bundle parse error: %s — autocomplete disabled", exc)
+        mitre_loaded = False
+        return
+
+    entries: list[dict[str, Any]] = []
+    for obj in data.get("objects") or []:
+        if not isinstance(obj, dict):
+            continue
+        if obj.get("type") != "attack-pattern":
+            continue
+        if obj.get("revoked") or obj.get("x_mitre_deprecated"):
+            continue
+        ext_id = _get_external_id(obj)
+        if not ext_id:
+            continue
+        entries.append(
+            {
+                "id": ext_id,
+                "name": obj.get("name", ""),
+                "tactics": _extract_tactics(obj),
+            }
+        )
+
+    _index = entries
+    mitre_loaded = True
+    logger.info("MITRE bundle loaded: %d techniques", len(_index))
+
+
+def search(query: str, limit: int = 20) -> list[dict[str, Any]]:
+    """Return up to `limit` techniques matching `query`.
+
+    Ranking: exact id > prefix id > substring name (case-insensitive).
+    """
+    q = query.strip().upper()
+    if not q:
+        return []
+
+    exact: list[dict[str, Any]] = []
+    prefix: list[dict[str, Any]] = []
+    name_match: list[dict[str, Any]] = []
+
+    for entry in _index:
+        tech_id = entry["id"].upper()
+        tech_name = entry["name"].upper()
+
+        if tech_id == q:
+            exact.append(entry)
+        elif tech_id.startswith(q):
+            prefix.append(entry)
+        elif q in tech_name:
+            name_match.append(entry)
+
+    combined = exact + prefix + name_match
+    return combined[:limit]

backend/app/services/simulation_workflow.py

@@ -0,0 +1,132 @@
+"""Simulation business logic: PATCH rules and state machine transitions."""
+from __future__ import annotations
+
+from datetime import UTC, datetime
+from typing import Any
+
+from flask import jsonify
+
+from backend.app.extensions import db
+from backend.app.models import User
+from backend.app.models.simulation import Simulation, SimulationStatus
+
+REDTEAM_FIELDS = frozenset(
+    {
+        "name",
+        "mitre_technique_id",
+        "mitre_technique_name",
+        "description",
+        "commands",
+        "prerequisites",
+        "executed_at",
+        "execution_result",
+    }
+)
+
+SOC_FIELDS = frozenset({"log_source", "logs", "soc_comment", "incident_number"})
+
+# Transitions allowed via POST /transition endpoint (manual only).
+# auto pending→in_progress is handled in apply_patch, not here.
+_ALLOWED_TRANSITIONS: dict[str, dict[str, set[str]]] = {
+    "review_required": {
+        "from": {"pending", "in_progress"},
+        "roles": {"admin", "redteam"},
+    },
+    "done": {
+        "from": {"review_required"},
+        "roles": {"admin", "redteam", "soc"},
+    },
+}
+
+
+def _is_non_empty(value: Any) -> bool:
+    """Return True if value counts as "filled" for auto-transition purposes."""
+    if value is None:
+        return False
+    if isinstance(value, str) and value == "":
+        return False
+    return not (isinstance(value, list) and len(value) == 0)
+
+
+def apply_patch(
+    simulation: Simulation, payload: dict[str, Any], user: User
+) -> tuple[Any, int] | None:
+    """Apply a validated PATCH payload to a simulation.
+
+    Returns a (response, status_code) tuple on error, or None on success
+    (caller is responsible for committing).
+    """
+    role = user.role.value
+
+    if role == "soc":
+        # SOC can only patch when status allows it.
+        if simulation.status not in (
+            SimulationStatus.REVIEW_REQUIRED,
+            SimulationStatus.DONE,
+        ):
+            return jsonify({"error": "simulation not ready for SOC review"}), 403
+
+        # SOC must not send redteam fields.
+        redteam_keys_in_payload = REDTEAM_FIELDS & payload.keys()
+        if redteam_keys_in_payload:
+            return jsonify({"error": "soc cannot edit redteam fields"}), 403
+
+        for field in SOC_FIELDS:
+            if field in payload:
+                setattr(simulation, field, payload[field])
+
+    else:
+        # admin / redteam: apply all fields present.
+        redteam_keys_present = REDTEAM_FIELDS & payload.keys()
+
+        # Validate executed_at before any writes so a bad value causes no partial mutation.
+        executed_at_value: datetime | None = None
+        if "executed_at" in redteam_keys_present:
+            val = payload["executed_at"]
+            if val is not None:
+                if not isinstance(val, str):
+                    return jsonify({"error": "invalid executed_at"}), 400
+                try:
+                    executed_at_value = datetime.fromisoformat(val)
+                except ValueError:
+                    return jsonify({"error": "invalid executed_at"}), 400
+
+        for field in redteam_keys_present:
+            if field == "executed_at":
+                simulation.executed_at = executed_at_value
+            else:
+                setattr(simulation, field, payload[field])
+
+        for field in SOC_FIELDS:
+            if field in payload:
+                setattr(simulation, field, payload[field])
+
+        # Auto-transition pending → in_progress: at least one redteam field with
+        # a non-empty value in the *incoming payload*.
+        if simulation.status == SimulationStatus.PENDING and any(
+            _is_non_empty(payload[k]) for k in redteam_keys_present
+        ):
+            simulation.status = SimulationStatus.IN_PROGRESS
+
+    simulation.updated_at = datetime.now(UTC)
+    return None
+
+
+def transition(
+    simulation: Simulation, to_status: str, user: User
+) -> tuple[Any, int] | None:
+    """Attempt a manual transition. Returns error tuple or None on success."""
+    rule = _ALLOWED_TRANSITIONS.get(to_status)
+    if rule is None:
+        return jsonify({"error": "invalid transition"}), 409
+
+    if simulation.status.value not in rule["from"]:
+        return jsonify({"error": "invalid transition"}), 409
+
+    if user.role.value not in rule["roles"]:
+        return jsonify({"error": "Forbidden"}), 403
+
+    simulation.status = SimulationStatus(to_status)
+    simulation.updated_at = datetime.now(UTC)
+    db.session.commit()
+    return None

backend/migrations/versions/0002_add_simulations.py

@@ -0,0 +1,59 @@
+"""add simulations table
+
+Revision ID: 0002
+Revises: 0001
+Create Date: 2026-05-26 00:00:00.000000
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "0002"
+down_revision = "0001"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table(
+        "simulations",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("engagement_id", sa.Integer(), nullable=False),
+        sa.Column("name", sa.String(length=255), nullable=False),
+        sa.Column("mitre_technique_id", sa.String(length=32), nullable=True),
+        sa.Column("mitre_technique_name", sa.String(length=255), nullable=True),
+        sa.Column("description", sa.Text(), nullable=True),
+        sa.Column("commands", sa.Text(), nullable=True),
+        sa.Column("prerequisites", sa.Text(), nullable=True),
+        sa.Column("executed_at", sa.DateTime(), nullable=True),
+        sa.Column("execution_result", sa.Text(), nullable=True),
+        sa.Column("log_source", sa.Text(), nullable=True),
+        sa.Column("logs", sa.Text(), nullable=True),
+        sa.Column("soc_comment", sa.Text(), nullable=True),
+        sa.Column("incident_number", sa.String(length=128), nullable=True),
+        sa.Column(
+            "status",
+            sa.Enum("pending", "in_progress", "review_required", "done", name="simulation_status"),
+            nullable=False,
+        ),
+        sa.Column("created_at", sa.DateTime(), nullable=False),
+        sa.Column("updated_at", sa.DateTime(), nullable=True),
+        sa.Column("created_by_id", sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["engagement_id"], ["engagements.id"], ondelete="CASCADE",
+            name="fk_simulations_engagement_id_engagements",
+        ),
+        sa.ForeignKeyConstraint(
+            ["created_by_id"], ["users.id"], ondelete="RESTRICT",
+            name="fk_simulations_created_by_id_users",
+        ),
+    )
+    op.create_index("ix_simulations_engagement_id", "simulations", ["engagement_id"])
+    op.create_index("ix_simulations_created_by_id", "simulations", ["created_by_id"])
+
+
+def downgrade():
+    op.drop_index("ix_simulations_created_by_id", table_name="simulations")
+    op.drop_index("ix_simulations_engagement_id", table_name="simulations")
+    op.drop_table("simulations")
+    sa.Enum(name="simulation_status").drop(op.get_bind(), checkfirst=True)

backend/tests/test_mitre.py

@@ -0,0 +1,247 @@
+"""MITRE service and endpoint tests. Uses a tiny fixture bundle, not the 40 MB file."""
+from __future__ import annotations
+
+import json
+import pathlib
+
+import pytest
+from flask.testing import FlaskClient
+
+from backend.app.services import mitre as mitre_svc
+from backend.tests.conftest import auth_headers as _h
+
+# ---------------------------------------------------------------------------
+# Fixture STIX bundle (minimal, 4 techniques including one sub-technique)
+# ---------------------------------------------------------------------------
+
+_FIXTURE_BUNDLE = {
+    "type": "bundle",
+    "objects": [
+        {
+            "type": "attack-pattern",
+            "name": "Command and Scripting Interpreter",
+            "external_references": [
+                {"source_name": "mitre-attack", "external_id": "T1059"}
+            ],
+            "kill_chain_phases": [{"phase_name": "execution", "kill_chain_name": "mitre-attack"}],
+        },
+        {
+            "type": "attack-pattern",
+            "name": "PowerShell",
+            "external_references": [
+                {"source_name": "mitre-attack", "external_id": "T1059.001"}
+            ],
+            "kill_chain_phases": [{"phase_name": "execution", "kill_chain_name": "mitre-attack"}],
+        },
+        {
+            "type": "attack-pattern",
+            "name": "Phishing",
+            "external_references": [
+                {"source_name": "mitre-attack", "external_id": "T1566"}
+            ],
+            "kill_chain_phases": [{"phase_name": "initial-access", "kill_chain_name": "mitre-attack"}],
+        },
+        {
+            "type": "attack-pattern",
+            "name": "Valid Accounts",
+            "external_references": [
+                {"source_name": "mitre-attack", "external_id": "T1078"}
+            ],
+            "kill_chain_phases": [
+                {"phase_name": "initial-access", "kill_chain_name": "mitre-attack"},
+                {"phase_name": "persistence", "kill_chain_name": "mitre-attack"},
+            ],
+        },
+        {
+            # Revoked — must be excluded from index.
+            "type": "attack-pattern",
+            "name": "Old Technique",
+            "revoked": True,
+            "external_references": [
+                {"source_name": "mitre-attack", "external_id": "T9999"}
+            ],
+            "kill_chain_phases": [],
+        },
+        {
+            # Not an attack-pattern — must be ignored.
+            "type": "relationship",
+            "name": "Ignored",
+        },
+    ],
+}
+
+
+@pytest.fixture(autouse=True)
+def _reset_mitre():
+    """Reset the MITRE service state between tests."""
+    original_loaded = mitre_svc.mitre_loaded
+    original_index = list(mitre_svc._index)
+    yield
+    mitre_svc.mitre_loaded = original_loaded
+    mitre_svc._index = original_index
+
+
+@pytest.fixture()
+def bundle_file(tmp_path: pathlib.Path) -> pathlib.Path:
+    p = tmp_path / "enterprise-attack.json"
+    p.write_text(json.dumps(_FIXTURE_BUNDLE), encoding="utf-8")
+    return p
+
+
+# ---------------------------------------------------------------------------
+# Unit tests for load_bundle
+# ---------------------------------------------------------------------------
+
+
+def test_load_bundle_success(bundle_file: pathlib.Path) -> None:
+    mitre_svc.load_bundle(bundle_file)
+    assert mitre_svc.mitre_loaded is True
+    assert len(mitre_svc._index) == 4  # 5 objects minus 1 revoked = 4
+
+
+def test_load_bundle_missing_file() -> None:
+    mitre_svc.load_bundle(pathlib.Path("/nonexistent/path.json"))
+    assert mitre_svc.mitre_loaded is False
+
+
+def test_load_bundle_invalid_json(tmp_path: pathlib.Path) -> None:
+    bad = tmp_path / "bad.json"
+    bad.write_text("{ not json }", encoding="utf-8")
+    mitre_svc.load_bundle(bad)
+    assert mitre_svc.mitre_loaded is False
+
+
+def test_load_bundle_excludes_revoked(bundle_file: pathlib.Path) -> None:
+    mitre_svc.load_bundle(bundle_file)
+    ids = [e["id"] for e in mitre_svc._index]
+    assert "T9999" not in ids
+
+
+def test_load_bundle_includes_subtechniques(bundle_file: pathlib.Path) -> None:
+    mitre_svc.load_bundle(bundle_file)
+    ids = [e["id"] for e in mitre_svc._index]
+    assert "T1059.001" in ids
+
+
+def test_load_bundle_extracts_tactics(bundle_file: pathlib.Path) -> None:
+    mitre_svc.load_bundle(bundle_file)
+    t1078 = next(e for e in mitre_svc._index if e["id"] == "T1078")
+    assert "initial-access" in t1078["tactics"]
+    assert "persistence" in t1078["tactics"]
+
+
+# ---------------------------------------------------------------------------
+# Unit tests for search
+# ---------------------------------------------------------------------------
+
+
+def test_search_exact_id_first(bundle_file: pathlib.Path) -> None:
+    mitre_svc.load_bundle(bundle_file)
+    results = mitre_svc.search("T1059")
+    assert results[0]["id"] == "T1059"
+
+
+def test_search_prefix_id(bundle_file: pathlib.Path) -> None:
+    mitre_svc.load_bundle(bundle_file)
+    results = mitre_svc.search("T105")
+    ids = [r["id"] for r in results]
+    assert "T1059" in ids
+    assert "T1059.001" in ids
+
+
+def test_search_name_substring(bundle_file: pathlib.Path) -> None:
+    mitre_svc.load_bundle(bundle_file)
+    results = mitre_svc.search("phish")
+    assert any(r["id"] == "T1566" for r in results)
+
+
+def test_search_case_insensitive(bundle_file: pathlib.Path) -> None:
+    mitre_svc.load_bundle(bundle_file)
+    results = mitre_svc.search("POWERSHELL")
+    assert any(r["id"] == "T1059.001" for r in results)
+
+
+def test_search_limit(bundle_file: pathlib.Path) -> None:
+    mitre_svc.load_bundle(bundle_file)
+    results = mitre_svc.search("T", limit=2)
+    assert len(results) <= 2
+
+
+def test_search_empty_query(bundle_file: pathlib.Path) -> None:
+    mitre_svc.load_bundle(bundle_file)
+    assert mitre_svc.search("") == []
+
+
+def test_search_ranking_order(bundle_file: pathlib.Path) -> None:
+    """exact-id > prefix-id > name match."""
+    mitre_svc.load_bundle(bundle_file)
+    results = mitre_svc.search("T1059")
+    # T1059 must come before T1059.001 (prefix match)
+    ids = [r["id"] for r in results]
+    assert ids.index("T1059") < ids.index("T1059.001")
+
+
+# ---------------------------------------------------------------------------
+# Endpoint tests
+# ---------------------------------------------------------------------------
+
+
+def test_mitre_endpoint_503_when_not_loaded(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    mitre_svc.mitre_loaded = False
+    mitre_svc._index = []
+    resp = client.get("/api/mitre/techniques?q=T1059", headers=_h(redteam_token))
+    assert resp.status_code == 503
+    assert resp.get_json()["error"] == "mitre bundle not loaded"
+
+
+def test_mitre_endpoint_returns_results(
+    client: FlaskClient, redteam_token: str, bundle_file: pathlib.Path
+) -> None:
+    mitre_svc.load_bundle(bundle_file)
+    resp = client.get("/api/mitre/techniques?q=T1059", headers=_h(redteam_token))
+    assert resp.status_code == 200
+    data = resp.get_json()
+    assert isinstance(data, list)
+    assert any(r["id"] == "T1059" for r in data)
+
+
+def test_mitre_endpoint_requires_auth(client: FlaskClient) -> None:
+    resp = client.get("/api/mitre/techniques?q=T1059")
+    assert resp.status_code == 401
+
+
+def test_mitre_endpoint_all_roles_can_access(
+    client: FlaskClient,
+    redteam_token: str,
+    soc_token: str,
+    admin_token: str,
+    bundle_file: pathlib.Path,
+) -> None:
+    mitre_svc.load_bundle(bundle_file)
+    for token in (redteam_token, soc_token, admin_token):
+        resp = client.get("/api/mitre/techniques?q=T1059", headers=_h(token))
+        assert resp.status_code == 200
+
+
+def test_mitre_endpoint_max_20_results(
+    client: FlaskClient, redteam_token: str, bundle_file: pathlib.Path
+) -> None:
+    mitre_svc.load_bundle(bundle_file)
+    resp = client.get("/api/mitre/techniques?q=T", headers=_h(redteam_token))
+    assert resp.status_code == 200
+    assert len(resp.get_json()) <= 20
+
+
+def test_mitre_endpoint_includes_tactics(
+    client: FlaskClient, redteam_token: str, bundle_file: pathlib.Path
+) -> None:
+    mitre_svc.load_bundle(bundle_file)
+    resp = client.get("/api/mitre/techniques?q=T1566", headers=_h(redteam_token))
+    assert resp.status_code == 200
+    data = resp.get_json()
+    assert len(data) >= 1
+    phishing = next((r for r in data if r["id"] == "T1566"), None)
+    assert phishing is not None
+    assert "initial-access" in phishing["tactics"]

backend/tests/test_simulations_crud.py

@@ -0,0 +1,236 @@
+"""Simulation CRUD tests: create, list, get, delete, cascade."""
+from __future__ import annotations
+
+from flask.testing import FlaskClient
+
+from backend.app.extensions import db
+from backend.app.models import User
+from backend.app.models.simulation import Simulation
+from backend.tests.conftest import auth_headers as _h
+
+# ---------------------------------------------------------------------------
+# Helpers
+# ---------------------------------------------------------------------------
+
+
+def _make_engagement(client: FlaskClient, token: str) -> dict:
+    resp = client.post(
+        "/api/engagements",
+        headers=_h(token),
+        json={"name": "Op Alpha", "start_date": "2026-06-01"},
+    )
+    assert resp.status_code == 201, resp.get_json()
+    return resp.get_json()
+
+
+def _make_sim(client: FlaskClient, token: str, eid: int, **kw) -> dict:
+    payload = {"name": "Sim 1", **kw}
+    resp = client.post(
+        f"/api/engagements/{eid}/simulations", headers=_h(token), json=payload
+    )
+    assert resp.status_code == 201, resp.get_json()
+    return resp.get_json()
+
+
+# ---------------------------------------------------------------------------
+# Create
+# ---------------------------------------------------------------------------
+
+
+def test_create_simulation_as_redteam(
+    client: FlaskClient, redteam_user: User, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    body = _make_sim(client, redteam_token, eng["id"])
+    assert body["name"] == "Sim 1"
+    assert body["status"] == "pending"
+    assert body["engagement_id"] == eng["id"]
+    assert body["created_by"] == {"id": redteam_user.id, "username": "redteam1"}
+
+
+def test_create_simulation_as_admin(
+    client: FlaskClient, admin_user: User, admin_token: str
+) -> None:
+    eng = _make_engagement(client, admin_token)
+    body = _make_sim(client, admin_token, eng["id"])
+    assert body["created_by"]["username"] == "admin1"
+
+
+def test_create_simulation_soc_forbidden(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    resp = client.post(
+        f"/api/engagements/{eng['id']}/simulations",
+        headers=_h(soc_token),
+        json={"name": "x"},
+    )
+    assert resp.status_code == 403
+
+
+def test_create_simulation_unauth(client: FlaskClient, redteam_token: str) -> None:
+    eng = _make_engagement(client, redteam_token)
+    resp = client.post(
+        f"/api/engagements/{eng['id']}/simulations", json={"name": "x"}
+    )
+    assert resp.status_code == 401
+
+
+def test_create_simulation_missing_name(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    resp = client.post(
+        f"/api/engagements/{eng['id']}/simulations",
+        headers=_h(redteam_token),
+        json={"name": ""},
+    )
+    assert resp.status_code == 400
+
+
+def test_create_simulation_engagement_not_found(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    resp = client.post(
+        "/api/engagements/9999/simulations",
+        headers=_h(redteam_token),
+        json={"name": "x"},
+    )
+    assert resp.status_code == 404
+
+
+# ---------------------------------------------------------------------------
+# List
+# ---------------------------------------------------------------------------
+
+
+def test_list_simulations_empty(client: FlaskClient, redteam_token: str) -> None:
+    eng = _make_engagement(client, redteam_token)
+    resp = client.get(
+        f"/api/engagements/{eng['id']}/simulations", headers=_h(redteam_token)
+    )
+    assert resp.status_code == 200
+    assert resp.get_json() == []
+
+
+def test_list_simulations_ordered_desc(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    _make_sim(client, redteam_token, eng["id"], name="First")
+    _make_sim(client, redteam_token, eng["id"], name="Second")
+    resp = client.get(
+        f"/api/engagements/{eng['id']}/simulations", headers=_h(redteam_token)
+    )
+    assert resp.status_code == 200
+    items = resp.get_json()
+    assert len(items) == 2
+    # Most recent first
+    assert items[0]["name"] == "Second"
+    assert items[1]["name"] == "First"
+
+
+def test_list_simulations_soc_can_read(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    _make_sim(client, redteam_token, eng["id"])
+    resp = client.get(
+        f"/api/engagements/{eng['id']}/simulations", headers=_h(soc_token)
+    )
+    assert resp.status_code == 200
+    assert len(resp.get_json()) == 1
+
+
+def test_list_simulations_engagement_not_found(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    resp = client.get(
+        "/api/engagements/9999/simulations", headers=_h(redteam_token)
+    )
+    assert resp.status_code == 404
+
+
+# ---------------------------------------------------------------------------
+# Get
+# ---------------------------------------------------------------------------
+
+
+def test_get_simulation_ok(client: FlaskClient, redteam_token: str) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    resp = client.get(f"/api/simulations/{sim['id']}", headers=_h(redteam_token))
+    assert resp.status_code == 200
+    assert resp.get_json()["id"] == sim["id"]
+
+
+def test_get_simulation_404(client: FlaskClient, redteam_token: str) -> None:
+    resp = client.get("/api/simulations/9999", headers=_h(redteam_token))
+    assert resp.status_code == 404
+
+
+def test_get_simulation_soc_can_read(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    resp = client.get(f"/api/simulations/{sim['id']}", headers=_h(soc_token))
+    assert resp.status_code == 200
+
+
+# ---------------------------------------------------------------------------
+# Delete
+# ---------------------------------------------------------------------------
+
+
+def test_delete_simulation_redteam(client: FlaskClient, redteam_token: str) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    resp = client.delete(
+        f"/api/simulations/{sim['id']}", headers=_h(redteam_token)
+    )
+    assert resp.status_code == 204
+
+
+def test_delete_simulation_admin(
+    client: FlaskClient, redteam_token: str, admin_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    resp = client.delete(f"/api/simulations/{sim['id']}", headers=_h(admin_token))
+    assert resp.status_code == 204
+
+
+def test_delete_simulation_soc_forbidden(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    resp = client.delete(f"/api/simulations/{sim['id']}", headers=_h(soc_token))
+    assert resp.status_code == 403
+
+
+def test_delete_simulation_404(client: FlaskClient, redteam_token: str) -> None:
+    resp = client.delete("/api/simulations/9999", headers=_h(redteam_token))
+    assert resp.status_code == 404
+
+
+# ---------------------------------------------------------------------------
+# Cascade delete
+# ---------------------------------------------------------------------------
+
+
+def test_cascade_delete_engagement_removes_simulations(
+    app, client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    sim_id = sim["id"]
+
+    resp = client.delete(
+        f"/api/engagements/{eng['id']}", headers=_h(redteam_token)
+    )
+    assert resp.status_code == 204
+
+    with app.app_context():
+        assert db.session.get(Simulation, sim_id) is None

backend/tests/test_simulations_patch.py

@@ -0,0 +1,295 @@
+"""Simulation PATCH tests: auto-transition, RBAC field-level, SOC restrictions."""
+from __future__ import annotations
+
+from flask.testing import FlaskClient
+
+from backend.tests.conftest import auth_headers as _h
+
+
+def _make_engagement(client: FlaskClient, token: str) -> dict:
+    resp = client.post(
+        "/api/engagements",
+        headers=_h(token),
+        json={"name": "Op Beta", "start_date": "2026-06-01"},
+    )
+    assert resp.status_code == 201
+    return resp.get_json()
+
+
+def _make_sim(client: FlaskClient, token: str, eid: int) -> dict:
+    resp = client.post(
+        f"/api/engagements/{eid}/simulations",
+        headers=_h(token),
+        json={"name": "Test Sim"},
+    )
+    assert resp.status_code == 201
+    return resp.get_json()
+
+
+def _patch(client: FlaskClient, token: str, sid: int, payload: dict):
+    return client.patch(
+        f"/api/simulations/{sid}", headers=_h(token), json=payload
+    )
+
+
+# ---------------------------------------------------------------------------
+# Auto-transition pending → in_progress (AC-8.2)
+# ---------------------------------------------------------------------------
+
+
+def test_patch_triggers_auto_transition(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    assert sim["status"] == "pending"
+
+    resp = _patch(client, redteam_token, sim["id"], {"description": "some desc"})
+    assert resp.status_code == 200
+    assert resp.get_json()["status"] == "in_progress"
+
+
+def test_patch_name_triggers_auto_transition(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+
+    resp = _patch(client, redteam_token, sim["id"], {"name": "Updated name"})
+    assert resp.status_code == 200
+    assert resp.get_json()["status"] == "in_progress"
+
+
+def test_patch_commands_triggers_auto_transition(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+
+    resp = _patch(client, redteam_token, sim["id"], {"commands": "cmd1\ncmd2"})
+    assert resp.status_code == 200
+    assert resp.get_json()["status"] == "in_progress"
+
+
+def test_patch_null_value_does_not_trigger_auto_transition(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+
+    resp = _patch(client, redteam_token, sim["id"], {"description": None})
+    assert resp.status_code == 200
+    assert resp.get_json()["status"] == "pending"
+
+
+def test_patch_empty_string_does_not_trigger_auto_transition(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+
+    resp = _patch(client, redteam_token, sim["id"], {"description": ""})
+    assert resp.status_code == 200
+    assert resp.get_json()["status"] == "pending"
+
+
+def test_patch_admin_triggers_auto_transition(
+    client: FlaskClient, admin_token: str
+) -> None:
+    eng = _make_engagement(client, admin_token)
+    sim = _make_sim(client, admin_token, eng["id"])
+
+    resp = _patch(client, admin_token, sim["id"], {"execution_result": "success"})
+    assert resp.status_code == 200
+    assert resp.get_json()["status"] == "in_progress"
+
+
+def test_patch_soc_does_not_trigger_auto_transition(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    """SOC patch on review_required must not trigger auto-transition."""
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+
+    # Manually advance to review_required.
+    client.post(
+        f"/api/simulations/{sim['id']}/transition",
+        headers=_h(redteam_token),
+        json={"to": "review_required"},
+    )
+
+    resp = _patch(client, soc_token, sim["id"], {"soc_comment": "looks good"})
+    assert resp.status_code == 200
+    assert resp.get_json()["status"] == "review_required"
+
+
+# ---------------------------------------------------------------------------
+# Field updates
+# ---------------------------------------------------------------------------
+
+
+def test_patch_updates_commands_as_text(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    commands = "whoami\nnet user\nipconfig"
+
+    resp = _patch(client, redteam_token, sim["id"], {"commands": commands})
+    assert resp.status_code == 200
+    assert resp.get_json()["commands"] == commands
+
+
+def test_patch_updates_executed_at(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+
+    resp = _patch(
+        client, redteam_token, sim["id"], {"executed_at": "2026-06-01T12:00:00"}
+    )
+    assert resp.status_code == 200
+    assert "2026-06-01" in resp.get_json()["executed_at"]
+
+
+def test_patch_invalid_executed_at(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+
+    resp = _patch(
+        client, redteam_token, sim["id"], {"executed_at": "not-a-date"}
+    )
+    assert resp.status_code == 400
+    assert resp.get_json()["error"] == "invalid executed_at"
+
+
+def test_patch_clear_executed_at(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    _patch(client, redteam_token, sim["id"], {"executed_at": "2026-06-01T12:00:00"})
+
+    resp = _patch(client, redteam_token, sim["id"], {"executed_at": None})
+    assert resp.status_code == 200
+    assert resp.get_json()["executed_at"] is None
+
+
+# ---------------------------------------------------------------------------
+# SOC RBAC field-level (AC-9.1, AC-9.2)
+# ---------------------------------------------------------------------------
+
+
+def test_soc_cannot_patch_before_review_required(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    assert sim["status"] == "pending"
+
+    resp = _patch(client, soc_token, sim["id"], {"soc_comment": "hello"})
+    assert resp.status_code == 403
+    assert "not ready" in resp.get_json()["error"]
+
+
+def test_soc_cannot_patch_in_progress(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    _patch(client, redteam_token, sim["id"], {"description": "in progress now"})
+
+    resp = _patch(client, soc_token, sim["id"], {"soc_comment": "hello"})
+    assert resp.status_code == 403
+
+
+def test_soc_can_patch_when_review_required(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    client.post(
+        f"/api/simulations/{sim['id']}/transition",
+        headers=_h(redteam_token),
+        json={"to": "review_required"},
+    )
+
+    resp = _patch(
+        client,
+        soc_token,
+        sim["id"],
+        {"soc_comment": "Detected", "log_source": "SIEM", "incident_number": "INC-001"},
+    )
+    assert resp.status_code == 200
+    body = resp.get_json()
+    assert body["soc_comment"] == "Detected"
+    assert body["log_source"] == "SIEM"
+    assert body["incident_number"] == "INC-001"
+
+
+def test_soc_can_patch_when_done(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    client.post(
+        f"/api/simulations/{sim['id']}/transition",
+        headers=_h(redteam_token),
+        json={"to": "review_required"},
+    )
+    client.post(
+        f"/api/simulations/{sim['id']}/transition",
+        headers=_h(soc_token),
+        json={"to": "done"},
+    )
+
+    resp = _patch(client, soc_token, sim["id"], {"soc_comment": "Final note"})
+    assert resp.status_code == 200
+
+
+def test_soc_cannot_edit_redteam_fields(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    client.post(
+        f"/api/simulations/{sim['id']}/transition",
+        headers=_h(redteam_token),
+        json={"to": "review_required"},
+    )
+
+    resp = _patch(client, soc_token, sim["id"], {"description": "redteam field"})
+    assert resp.status_code == 403
+    assert resp.get_json()["error"] == "soc cannot edit redteam fields"
+
+
+def test_patch_simulation_404(client: FlaskClient, redteam_token: str) -> None:
+    resp = _patch(client, redteam_token, 9999, {"name": "x"})
+    assert resp.status_code == 404
+
+
+def test_invalid_executed_at_does_not_mutate_other_fields(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    """invalid executed_at must return 400 without persisting other fields in the payload."""
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    original_description = sim["description"]
+
+    resp = _patch(
+        client,
+        redteam_token,
+        sim["id"],
+        {"description": "should-not-stick", "executed_at": "not-a-date"},
+    )
+    assert resp.status_code == 400
+
+    get_resp = client.get(
+        f"/api/simulations/{sim['id']}",
+        headers={"Authorization": f"Bearer {redteam_token}"},
+    )
+    assert get_resp.status_code == 200
+    assert get_resp.get_json()["description"] == original_description

backend/tests/test_simulations_workflow.py

@@ -0,0 +1,192 @@
+"""Simulation workflow / state machine tests."""
+from __future__ import annotations
+
+from flask.testing import FlaskClient
+
+from backend.tests.conftest import auth_headers as _h
+
+
+def _make_engagement(client: FlaskClient, token: str) -> dict:
+    resp = client.post(
+        "/api/engagements",
+        headers=_h(token),
+        json={"name": "Op Gamma", "start_date": "2026-06-01"},
+    )
+    assert resp.status_code == 201
+    return resp.get_json()
+
+
+def _make_sim(client: FlaskClient, token: str, eid: int) -> dict:
+    resp = client.post(
+        f"/api/engagements/{eid}/simulations",
+        headers=_h(token),
+        json={"name": "Workflow Sim"},
+    )
+    assert resp.status_code == 201
+    return resp.get_json()
+
+
+def _transition(client: FlaskClient, token: str, sid: int, to: str):
+    return client.post(
+        f"/api/simulations/{sid}/transition",
+        headers=_h(token),
+        json={"to": to},
+    )
+
+
+# ---------------------------------------------------------------------------
+# Valid transitions
+# ---------------------------------------------------------------------------
+
+
+def test_transition_to_review_required_from_pending(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    assert sim["status"] == "pending"
+
+    resp = _transition(client, redteam_token, sim["id"], "review_required")
+    assert resp.status_code == 200
+    assert resp.get_json()["status"] == "review_required"
+
+
+def test_transition_to_review_required_from_in_progress(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    # Auto-advance to in_progress
+    client.patch(
+        f"/api/simulations/{sim['id']}",
+        headers=_h(redteam_token),
+        json={"description": "started"},
+    )
+
+    resp = _transition(client, redteam_token, sim["id"], "review_required")
+    assert resp.status_code == 200
+    assert resp.get_json()["status"] == "review_required"
+
+
+def test_transition_to_done_by_redteam(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    _transition(client, redteam_token, sim["id"], "review_required")
+
+    resp = _transition(client, redteam_token, sim["id"], "done")
+    assert resp.status_code == 200
+    assert resp.get_json()["status"] == "done"
+
+
+def test_transition_to_done_by_soc(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    _transition(client, redteam_token, sim["id"], "review_required")
+
+    resp = _transition(client, soc_token, sim["id"], "done")
+    assert resp.status_code == 200
+    assert resp.get_json()["status"] == "done"
+
+
+def test_transition_to_done_by_admin(
+    client: FlaskClient, admin_token: str
+) -> None:
+    eng = _make_engagement(client, admin_token)
+    sim = _make_sim(client, admin_token, eng["id"])
+    _transition(client, admin_token, sim["id"], "review_required")
+
+    resp = _transition(client, admin_token, sim["id"], "done")
+    assert resp.status_code == 200
+    assert resp.get_json()["status"] == "done"
+
+
+# ---------------------------------------------------------------------------
+# Invalid transitions (AC-11.3)
+# ---------------------------------------------------------------------------
+
+
+def test_transition_done_from_pending_rejected(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+
+    resp = _transition(client, redteam_token, sim["id"], "done")
+    assert resp.status_code == 409
+
+
+def test_transition_to_pending_rejected(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    _transition(client, redteam_token, sim["id"], "review_required")
+
+    resp = _transition(client, redteam_token, sim["id"], "pending")
+    assert resp.status_code == 409
+
+
+def test_transition_to_in_progress_rejected(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+
+    resp = _transition(client, redteam_token, sim["id"], "in_progress")
+    assert resp.status_code == 409
+
+
+def test_transition_unknown_status_rejected(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+
+    resp = _transition(client, redteam_token, sim["id"], "nonexistent")
+    assert resp.status_code == 409
+
+
+def test_transition_review_required_from_done_rejected(
+    client: FlaskClient, redteam_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+    _transition(client, redteam_token, sim["id"], "review_required")
+    _transition(client, redteam_token, sim["id"], "done")
+
+    resp = _transition(client, redteam_token, sim["id"], "review_required")
+    assert resp.status_code == 409
+
+
+# ---------------------------------------------------------------------------
+# RBAC by role
+# ---------------------------------------------------------------------------
+
+
+def test_soc_cannot_transition_to_review_required(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+
+    resp = _transition(client, soc_token, sim["id"], "review_required")
+    assert resp.status_code == 403
+
+
+def test_soc_cannot_transition_to_done_from_pending(
+    client: FlaskClient, redteam_token: str, soc_token: str
+) -> None:
+    eng = _make_engagement(client, redteam_token)
+    sim = _make_sim(client, redteam_token, eng["id"])
+
+    resp = _transition(client, soc_token, sim["id"], "done")
+    assert resp.status_code == 409
+
+
+def test_transition_simulation_404(client: FlaskClient, redteam_token: str) -> None:
+    resp = _transition(client, redteam_token, 9999, "review_required")
+    assert resp.status_code == 404

e2e/tests/us10-mitre-autocomplete.spec.ts

@@ -0,0 +1,174 @@
+/**
+ * US-10 — MITRE ATT&CK autocomplete.
+ * Covers AC-10.1 → AC-10.5.
+ *
+ * AC-10.1 (make update-mitre CLI target) is not exercised from Playwright;
+ * the bundle is assumed present in the container image.
+ */
+import { test, expect } from '@playwright/test';
+import {
+  adminToken,
+  createEngagement,
+  deleteEngagement,
+  deleteUserByUsername,
+  ensureUser,
+  login,
+  makeClient,
+} from '../fixtures/api';
+import { seedTokenInStorage } from '../fixtures/auth';
+
+const REDTEAM_USER = 'us10-redteam';
+const PASS = 'us10-pass-strong';
+
+interface Simulation {
+  id: number;
+  [key: string]: unknown;
+}
+
+async function createSimulation(
+  token: string,
+  engagementId: number,
+  name = 'US-10 sim',
+): Promise<Simulation> {
+  const client = makeClient(token);
+  const r = await client.post(`/engagements/${engagementId}/simulations`, { name });
+  if (r.status !== 201) {
+    throw new Error(`create simulation failed: ${r.status} ${JSON.stringify(r.data)}`);
+  }
+  return r.data as Simulation;
+}
+
+async function deleteSimulation(token: string, simId: number): Promise<void> {
+  const client = makeClient(token);
+  await client.delete(`/simulations/${simId}`);
+}
+
+test.describe('US-10 — MITRE autocomplete', () => {
+  let redteamToken: string;
+  let engagementId: number;
+
+  test.beforeAll(async () => {
+    await ensureUser(REDTEAM_USER, PASS, 'redteam');
+    redteamToken = (await login(REDTEAM_USER, PASS)).token;
+    const eng = await createEngagement(redteamToken, {
+      name: 'US-10 Test Engagement',
+      start_date: '2026-01-01',
+    });
+    engagementId = eng.id;
+  });
+
+  test.afterAll(async () => {
+    try {
+      const tok = await adminToken();
+      await deleteEngagement(tok, engagementId);
+      await deleteUserByUsername(tok, REDTEAM_USER);
+    } catch {
+      /* noop */
+    }
+  });
+
+  test('AC-10.1 — bundle present in container (skipped: CLI-only, bundle assumed committed)', async () => {
+    // AC-10.1 is a Makefile target test. We verify the bundle is loaded
+    // indirectly by checking the API returns results (not 503).
+    const client = makeClient(redteamToken);
+    const r = await client.get('/mitre/techniques?q=T1059');
+    // If bundle not loaded, we'd get 503 — this confirms it loaded OK
+    expect(r.status).not.toBe(503);
+  });
+
+  test('AC-10.2 — GET /api/mitre/techniques?q= returns max 20 results with id/name/tactics', async () => {
+    const client = makeClient(redteamToken);
+
+    // Search by id prefix
+    const rId = await client.get('/mitre/techniques?q=T1059');
+    expect(rId.status).toBe(200);
+    expect(Array.isArray(rId.data)).toBe(true);
+    expect(rId.data.length).toBeGreaterThan(0);
+    expect(rId.data.length).toBeLessThanOrEqual(20);
+
+    const first = rId.data[0];
+    expect(first).toHaveProperty('id');
+    expect(first).toHaveProperty('name');
+    expect(first).toHaveProperty('tactics');
+    expect(Array.isArray(first.tactics)).toBe(true);
+
+    // Exact id match comes first
+    const exactMatch = rId.data.find((t: { id: string }) => t.id === 'T1059');
+    expect(exactMatch).toBeTruthy();
+    expect(rId.data[0].id).toBe('T1059');
+
+    // Search by name (case-insensitive)
+    const rName = await client.get(
+      '/mitre/techniques?q=command%20and%20scripting%20interpreter',
+    );
+    expect(rName.status).toBe(200);
+    expect(rName.data.length).toBeGreaterThan(0);
+    const nameMatch = rName.data.find((t: { name: string }) =>
+      t.name.toLowerCase().includes('command and scripting'),
+    );
+    expect(nameMatch).toBeTruthy();
+  });
+
+  test('AC-10.3 — 503 if bundle not loaded (verified by absence: bundle IS loaded)', async () => {
+    const client = makeClient(redteamToken);
+    // We can only test the happy path from e2e; 503 requires a container
+    // without the bundle. We verify the endpoint does NOT return 503,
+    // confirming the bundle is loaded.
+    const r = await client.get('/mitre/techniques?q=T1');
+    expect(r.status).toBe(200);
+  });
+
+  test('AC-10.4 — sub-techniques (T1059.001) included in search results', async () => {
+    const client = makeClient(redteamToken);
+    const r = await client.get('/mitre/techniques?q=T1059.001');
+    expect(r.status).toBe(200);
+    expect(r.data.length).toBeGreaterThan(0);
+    const subtech = r.data.find((t: { id: string }) => t.id === 'T1059.001');
+    expect(subtech).toBeTruthy();
+    expect(subtech.name).toBeTruthy();
+  });
+
+  test('AC-10.5 — MitreTechniquePicker: input, dropdown, keyboard nav, selection fills both fields', async ({
+    page,
+    context,
+  }) => {
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-10.5 sim');
+
+    await seedTokenInStorage(context, redteamToken);
+    await page.goto(`/engagements/${engagementId}/simulations/${sim.id}/edit`);
+
+    const picker = page.getByRole('combobox', { name: /mitre technique/i });
+    await expect(picker).toBeVisible();
+
+    // Type a query — after debounce (200ms) the dropdown opens with results
+    await picker.fill('T1059');
+    // Wait for dropdown to appear (debounce + network)
+    const listbox = page.getByRole('listbox', { name: /mitre techniques/i });
+    await expect(listbox).toBeVisible({ timeout: 5_000 });
+
+    // Options visible in expected format: "T1059 — Command and Scripting Interpreter (...)"
+    const options = listbox.getByRole('option');
+    await expect(options.first()).toBeVisible();
+    const firstText = await options.first().textContent();
+    expect(firstText).toMatch(/T1059/);
+    expect(firstText).toMatch(/—/);
+
+    // Keyboard navigation: ArrowDown selects item, Enter confirms
+    await picker.press('ArrowDown');
+    await picker.press('Enter');
+
+    // After selection the dropdown closes and input shows the selected value
+    await expect(listbox).not.toBeVisible();
+    const inputValue = await picker.inputValue();
+    expect(inputValue).toMatch(/T1059/);
+    expect(inputValue).toMatch(/—/);
+
+    // Escape closes the dropdown
+    await picker.fill('T1');
+    await expect(listbox).toBeVisible({ timeout: 5_000 });
+    await picker.press('Escape');
+    await expect(listbox).not.toBeVisible();
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+});

e2e/tests/us11-workflow-transitions.spec.ts

@@ -0,0 +1,245 @@
+/**
+ * US-11 — workflow transitions.
+ * Covers AC-11.1 → AC-11.5.
+ */
+import { test, expect } from '@playwright/test';
+import {
+  adminToken,
+  createEngagement,
+  deleteEngagement,
+  deleteUserByUsername,
+  ensureUser,
+  login,
+  makeClient,
+} from '../fixtures/api';
+import { seedTokenInStorage } from '../fixtures/auth';
+
+const REDTEAM_USER = 'us11-redteam';
+const SOC_USER = 'us11-soc';
+const PASS = 'us11-pass-strong';
+
+interface Simulation {
+  id: number;
+  status: string;
+  [key: string]: unknown;
+}
+
+async function createSimulation(
+  token: string,
+  engagementId: number,
+  name = 'US-11 sim',
+): Promise<Simulation> {
+  const client = makeClient(token);
+  const r = await client.post(`/engagements/${engagementId}/simulations`, { name });
+  if (r.status !== 201) {
+    throw new Error(`create simulation failed: ${r.status} ${JSON.stringify(r.data)}`);
+  }
+  return r.data as Simulation;
+}
+
+async function deleteSimulation(token: string, simId: number): Promise<void> {
+  const client = makeClient(token);
+  await client.delete(`/simulations/${simId}`);
+}
+
+test.describe('US-11 — workflow transitions', () => {
+  let redteamToken: string;
+  let socToken: string;
+  let engagementId: number;
+
+  test.beforeAll(async () => {
+    await ensureUser(REDTEAM_USER, PASS, 'redteam');
+    await ensureUser(SOC_USER, PASS, 'soc');
+    redteamToken = (await login(REDTEAM_USER, PASS)).token;
+    socToken = (await login(SOC_USER, PASS)).token;
+    const eng = await createEngagement(redteamToken, {
+      name: 'US-11 Test Engagement',
+      start_date: '2026-01-01',
+    });
+    engagementId = eng.id;
+  });
+
+  test.afterAll(async () => {
+    try {
+      const tok = await adminToken();
+      await deleteEngagement(tok, engagementId);
+      for (const u of [REDTEAM_USER, SOC_USER]) {
+        await deleteUserByUsername(tok, u);
+      }
+    } catch {
+      /* noop */
+    }
+  });
+
+  test('AC-11.1 — pending→review_required valid (redteam); invalid target → 409', async () => {
+    const rtClient = makeClient(redteamToken);
+
+    // pending → review_required: valid
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-11.1 sim');
+    const rOk = await rtClient.post(`/simulations/${sim.id}/transition`, {
+      to: 'review_required',
+    });
+    expect(rOk.status).toBe(200);
+    expect(rOk.data.status).toBe('review_required');
+
+    // Invalid target → 409
+    const simBad = await createSimulation(redteamToken, engagementId, 'AC-11.1 bad sim');
+    const rBad = await rtClient.post(`/simulations/${simBad.id}/transition`, {
+      to: 'done',
+    });
+    expect(rBad.status).toBe(409);
+    expect(rBad.data.error).toMatch(/invalid transition/i);
+
+    await deleteSimulation(redteamToken, sim.id);
+    await deleteSimulation(redteamToken, simBad.id);
+  });
+
+  test('AC-11.1 — in_progress→review_required valid (redteam)', async () => {
+    const rtClient = makeClient(redteamToken);
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-11.1 in_progress sim');
+
+    // Trigger in_progress via auto-transition
+    await rtClient.patch(`/simulations/${sim.id}`, { name: 'trigger' });
+    const r = await rtClient.post(`/simulations/${sim.id}/transition`, {
+      to: 'review_required',
+    });
+    expect(r.status).toBe(200);
+    expect(r.data.status).toBe('review_required');
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+
+  test('AC-11.2 — review_required→done valid for redteam and soc', async () => {
+    const rtClient = makeClient(redteamToken);
+    const socClient = makeClient(socToken);
+
+    // redteam can close
+    const simRT = await createSimulation(redteamToken, engagementId, 'AC-11.2 redteam close');
+    await rtClient.post(`/simulations/${simRT.id}/transition`, { to: 'review_required' });
+    const rRT = await rtClient.post(`/simulations/${simRT.id}/transition`, { to: 'done' });
+    expect(rRT.status).toBe(200);
+    expect(rRT.data.status).toBe('done');
+
+    // soc can close
+    const simSOC = await createSimulation(redteamToken, engagementId, 'AC-11.2 soc close');
+    await rtClient.post(`/simulations/${simSOC.id}/transition`, { to: 'review_required' });
+    const rSOC = await socClient.post(`/simulations/${simSOC.id}/transition`, { to: 'done' });
+    expect(rSOC.status).toBe(200);
+    expect(rSOC.data.status).toBe('done');
+
+    // done → review_required is invalid (409)
+    const rBack = await rtClient.post(`/simulations/${simRT.id}/transition`, {
+      to: 'review_required',
+    });
+    expect(rBack.status).toBe(409);
+
+    await deleteSimulation(redteamToken, simRT.id);
+    await deleteSimulation(redteamToken, simSOC.id);
+  });
+
+  test('AC-11.3 — no backward transitions; no →pending or →in_progress via endpoint', async () => {
+    const rtClient = makeClient(redteamToken);
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-11.3 sim');
+
+    // done → pending: invalid
+    await rtClient.post(`/simulations/${sim.id}/transition`, { to: 'review_required' });
+    await rtClient.post(`/simulations/${sim.id}/transition`, { to: 'done' });
+    const rPending = await rtClient.post(`/simulations/${sim.id}/transition`, {
+      to: 'pending',
+    });
+    expect(rPending.status).toBe(409);
+    expect(rPending.data.error).toMatch(/invalid transition/i);
+
+    // →in_progress via endpoint is always invalid
+    const simNew = await createSimulation(redteamToken, engagementId, 'AC-11.3 in_progress');
+    const rIP = await rtClient.post(`/simulations/${simNew.id}/transition`, {
+      to: 'in_progress',
+    });
+    expect(rIP.status).toBe(409);
+
+    await deleteSimulation(redteamToken, sim.id);
+    await deleteSimulation(redteamToken, simNew.id);
+  });
+
+  test('AC-11.4 — workflow buttons visible per role+status in UI', async ({
+    page,
+    context,
+  }) => {
+    const rtClient = makeClient(redteamToken);
+
+    // pending → "Marquer en revue" visible for redteam; "Clôturer" hidden
+    const simPending = await createSimulation(
+      redteamToken,
+      engagementId,
+      'AC-11.4 pending UI',
+    );
+    await seedTokenInStorage(context, redteamToken);
+    await page.goto(`/engagements/${engagementId}/simulations/${simPending.id}/edit`);
+    await expect(page.getByRole('button', { name: /marquer en revue/i })).toBeVisible();
+    await expect(page.getByRole('button', { name: /clôturer/i })).toHaveCount(0);
+
+    // in_progress → "Marquer en revue" visible
+    const simIP = await createSimulation(redteamToken, engagementId, 'AC-11.4 in_progress UI');
+    await rtClient.patch(`/simulations/${simIP.id}`, { name: 'trigger' });
+    await page.goto(`/engagements/${engagementId}/simulations/${simIP.id}/edit`);
+    await expect(page.getByRole('button', { name: /marquer en revue/i })).toBeVisible();
+    await expect(page.getByRole('button', { name: /clôturer/i })).toHaveCount(0);
+
+    // review_required → "Clôturer" visible for redteam; "Marquer en revue" hidden
+    const simRR = await createSimulation(redteamToken, engagementId, 'AC-11.4 review UI');
+    await rtClient.post(`/simulations/${simRR.id}/transition`, { to: 'review_required' });
+    await page.goto(`/engagements/${engagementId}/simulations/${simRR.id}/edit`);
+    await expect(page.getByRole('button', { name: /clôturer/i })).toBeVisible();
+    await expect(page.getByRole('button', { name: /marquer en revue/i })).toHaveCount(0);
+
+    // review_required → "Clôturer" also visible for SOC
+    await seedTokenInStorage(context, socToken);
+    await page.goto(`/engagements/${engagementId}/simulations/${simRR.id}/edit`);
+    await expect(page.getByRole('button', { name: /clôturer/i })).toBeVisible();
+
+    // done → both buttons hidden
+    await rtClient.post(`/simulations/${simRR.id}/transition`, { to: 'done' });
+    await seedTokenInStorage(context, redteamToken);
+    await page.goto(`/engagements/${engagementId}/simulations/${simRR.id}/edit`);
+    await expect(page.getByRole('button', { name: /marquer en revue/i })).toHaveCount(0);
+    await expect(page.getByRole('button', { name: /clôturer/i })).toHaveCount(0);
+
+    await deleteSimulation(redteamToken, simPending.id);
+    await deleteSimulation(redteamToken, simIP.id);
+    await deleteSimulation(redteamToken, simRR.id);
+  });
+
+  test('AC-11.5 — after transition, badge updates in UI (TanStack Query invalidation)', async ({
+    page,
+    context,
+  }) => {
+    const rtClient = makeClient(redteamToken);
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-11.5 badge sim');
+
+    await seedTokenInStorage(context, redteamToken);
+    await page.goto(`/engagements/${engagementId}/simulations/${sim.id}/edit`);
+
+    // Initially pending
+    const badge = page.getByTestId('simulation-status-badge');
+    await expect(badge).toHaveAttribute('data-status', 'pending');
+
+    // Click "Marquer en revue"
+    await page.getByRole('button', { name: /marquer en revue/i }).click();
+
+    // Badge updates to review_required without page reload
+    await expect(badge).toHaveAttribute('data-status', 'review_required', { timeout: 5_000 });
+
+    // "Clôturer" now visible; click it
+    await page.getByRole('button', { name: /clôturer/i }).click();
+    await expect(badge).toHaveAttribute('data-status', 'done', { timeout: 5_000 });
+
+    // Verify list is also updated: navigate to engagement detail and check badge there
+    await page.goto(`/engagements/${engagementId}`);
+    const listBadge = page
+      .getByRole('row', { name: /AC-11.5 badge sim/i })
+      .getByTestId('simulation-status-badge');
+    await expect(listBadge).toHaveAttribute('data-status', 'done');
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+});

e2e/tests/us12-simulation-delete.spec.ts

@@ -0,0 +1,153 @@
+/**
+ * US-12 — simulation delete (RBAC + cascade + confirm modal).
+ * Covers AC-12.1 → AC-12.4.
+ */
+import { test, expect } from '@playwright/test';
+import {
+  adminToken,
+  createEngagement,
+  deleteEngagement,
+  deleteUserByUsername,
+  ensureUser,
+  login,
+  makeClient,
+} from '../fixtures/api';
+import { seedTokenInStorage } from '../fixtures/auth';
+
+const REDTEAM_USER = 'us12-redteam';
+const SOC_USER = 'us12-soc';
+const PASS = 'us12-pass-strong';
+
+interface Simulation {
+  id: number;
+  engagement_id: number;
+  name: string;
+  status: string;
+  [key: string]: unknown;
+}
+
+async function createSimulation(
+  token: string,
+  engagementId: number,
+  name = 'US-12 sim',
+): Promise<Simulation> {
+  const client = makeClient(token);
+  const r = await client.post(`/engagements/${engagementId}/simulations`, { name });
+  if (r.status !== 201) {
+    throw new Error(`create simulation failed: ${r.status} ${JSON.stringify(r.data)}`);
+  }
+  return r.data as Simulation;
+}
+
+test.describe('US-12 — simulation delete', () => {
+  let redteamToken: string;
+  let socToken: string;
+  let engagementId: number;
+
+  test.beforeAll(async () => {
+    await ensureUser(REDTEAM_USER, PASS, 'redteam');
+    await ensureUser(SOC_USER, PASS, 'soc');
+    redteamToken = (await login(REDTEAM_USER, PASS)).token;
+    socToken = (await login(SOC_USER, PASS)).token;
+    const eng = await createEngagement(redteamToken, {
+      name: 'US-12 Test Engagement',
+      start_date: '2026-01-01',
+    });
+    engagementId = eng.id;
+  });
+
+  test.afterAll(async () => {
+    try {
+      const tok = await adminToken();
+      await deleteEngagement(tok, engagementId);
+      for (const u of [REDTEAM_USER, SOC_USER]) {
+        await deleteUserByUsername(tok, u);
+      }
+    } catch {
+      /* noop */
+    }
+  });
+
+  test('AC-12.1 — DELETE /api/simulations/<sid> (redteam) → 204, then 404', async () => {
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-12.1 to delete');
+    const client = makeClient(redteamToken);
+
+    const rDel = await client.delete(`/simulations/${sim.id}`);
+    expect(rDel.status).toBe(204);
+
+    const rGet = await client.get(`/simulations/${sim.id}`);
+    expect(rGet.status).toBe(404);
+  });
+
+  test('AC-12.2 — soc → 403 on DELETE', async () => {
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-12.2 soc blocked');
+    const socClient = makeClient(socToken);
+
+    const r = await socClient.delete(`/simulations/${sim.id}`);
+    expect(r.status).toBe(403);
+
+    // Clean up
+    const rtClient = makeClient(redteamToken);
+    await rtClient.delete(`/simulations/${sim.id}`);
+  });
+
+  test('AC-12.3 — cascade: deleting engagement deletes its simulations', async () => {
+    const adminTok = await adminToken();
+    const adminClient = makeClient(adminTok);
+
+    // Create a fresh engagement with simulations
+    const eng = await createEngagement(redteamToken, {
+      name: 'US-12 cascade test',
+      start_date: '2026-01-01',
+    });
+    const s1 = await createSimulation(redteamToken, eng.id, 'cascade sim 1');
+    const s2 = await createSimulation(redteamToken, eng.id, 'cascade sim 2');
+
+    // Delete the engagement
+    await deleteEngagement(redteamToken, eng.id);
+
+    // Simulations must be gone
+    const rS1 = await adminClient.get(`/simulations/${s1.id}`);
+    expect(rS1.status).toBe(404);
+    const rS2 = await adminClient.get(`/simulations/${s2.id}`);
+    expect(rS2.status).toBe(404);
+  });
+
+  test('AC-12.4 — delete button visible for redteam, confirmation modal, deletes and redirects', async ({
+    page,
+    context,
+  }) => {
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-12.4 UI delete');
+
+    await seedTokenInStorage(context, redteamToken);
+    await page.goto(`/engagements/${engagementId}/simulations/${sim.id}/edit`);
+
+    // Delete button is visible for redteam
+    const deleteBtn = page.getByRole('button', { name: /supprimer/i });
+    await expect(deleteBtn).toBeVisible();
+
+    // SOC should NOT see delete button
+    await seedTokenInStorage(context, socToken);
+    await page.goto(`/engagements/${engagementId}/simulations/${sim.id}/edit`);
+    await expect(page.getByRole('button', { name: /supprimer/i })).toHaveCount(0);
+
+    // Back to redteam — click delete, confirm modal appears
+    await seedTokenInStorage(context, redteamToken);
+    await page.goto(`/engagements/${engagementId}/simulations/${sim.id}/edit`);
+    await page.getByRole('button', { name: /supprimer/i }).click();
+
+    // Confirmation dialog must appear
+    const dialog = page.getByRole('dialog');
+    await expect(dialog).toBeVisible();
+    await expect(dialog.getByText(/supprimer la simulation/i)).toBeVisible();
+
+    // Confirm deletion
+    await dialog.getByRole('button', { name: /supprimer/i }).click();
+
+    // Should navigate back to engagement detail
+    await page.waitForURL(new RegExp(`/engagements/${engagementId}$`));
+
+    // Simulation no longer in list
+    await expect(page.getByRole('row', { name: /AC-12.4 UI delete/i })).toHaveCount(0);
+  });
+});

e2e/tests/us4-engagements.spec.ts

@@ -251,7 +251,7 @@ test.describe('US-4 — engagement CRUD', () => {
     await expect(page.getByRole('heading', { name: /UI form test \(edited\)/i })).toBeVisible();
   });
 
-  test('AC-4.9 — /engagements/<id> detail page shows Sprint 2 placeholder', async ({
+  test('AC-4.9 — /engagements/<id> detail page shows Simulations section (sprint 2 replaced placeholder)', async ({
     page,
     context,
   }) => {
@@ -263,8 +263,11 @@ test.describe('US-4 — engagement CRUD', () => {
     await seedTokenInStorage(context, redteamToken);
     await page.goto(`/engagements/${seeded.id}`);
     await expect(page.getByRole('heading', { name: /AC-4.9 detail target/i })).toBeVisible();
+    // Sprint 2 replaced the placeholder with the real SimulationList — covered by AC-7.5.
+    await expect(page.getByRole('heading', { name: /simulations/i })).toBeVisible();
+    // admin/redteam see the "Nouvelle simulation" button
     await expect(
-      page.getByText(/simulations à venir au sprint 2/i),
+      page.getByRole('link', { name: /nouvelle simulation/i }),
     ).toBeVisible();
   });
 });

e2e/tests/us7-simulation-create.spec.ts

@@ -0,0 +1,192 @@
+/**
+ * US-7 — redteam creates a simulation inside an engagement.
+ * Covers AC-7.1 → AC-7.6.
+ */
+import { test, expect } from '@playwright/test';
+import {
+  adminToken,
+  createEngagement,
+  deleteEngagement,
+  deleteUserByUsername,
+  ensureUser,
+  login,
+  makeClient,
+} from '../fixtures/api';
+import { seedTokenInStorage } from '../fixtures/auth';
+
+const REDTEAM_USER = 'us7-redteam';
+const SOC_USER = 'us7-soc';
+const PASS = 'us7-pass-strong';
+
+interface Simulation {
+  id: number;
+  engagement_id: number;
+  name: string;
+  status: string;
+  created_at: string;
+  [key: string]: unknown;
+}
+
+async function createSimulation(
+  token: string,
+  engagementId: number,
+  payload: { name: string },
+): Promise<Simulation> {
+  const client = makeClient(token);
+  const r = await client.post(`/engagements/${engagementId}/simulations`, payload);
+  if (r.status !== 201) {
+    throw new Error(`create simulation failed: ${r.status} ${JSON.stringify(r.data)}`);
+  }
+  return r.data as Simulation;
+}
+
+async function deleteSimulation(token: string, simId: number): Promise<void> {
+  const client = makeClient(token);
+  await client.delete(`/simulations/${simId}`);
+}
+
+test.describe('US-7 — simulation create', () => {
+  let redteamToken: string;
+  let socToken: string;
+  let engagementId: number;
+
+  test.beforeAll(async () => {
+    await ensureUser(REDTEAM_USER, PASS, 'redteam');
+    await ensureUser(SOC_USER, PASS, 'soc');
+    redteamToken = (await login(REDTEAM_USER, PASS)).token;
+    socToken = (await login(SOC_USER, PASS)).token;
+    const eng = await createEngagement(redteamToken, {
+      name: 'US-7 Test Engagement',
+      start_date: '2026-01-01',
+    });
+    engagementId = eng.id;
+  });
+
+  test.afterAll(async () => {
+    try {
+      const tok = await adminToken();
+      await deleteEngagement(tok, engagementId);
+      for (const u of [REDTEAM_USER, SOC_USER]) {
+        await deleteUserByUsername(tok, u);
+      }
+    } catch {
+      /* noop */
+    }
+  });
+
+  test('AC-7.1 — POST creates simulation with status pending, name required', async () => {
+    const sim = await createSimulation(redteamToken, engagementId, { name: 'Test sim 7.1' });
+    expect(sim.id).toBeTruthy();
+    expect(sim.engagement_id).toBe(engagementId);
+    expect(sim.name).toBe('Test sim 7.1');
+    expect(sim.status).toBe('pending');
+    expect(sim.created_at).toBeTruthy();
+
+    // name required: blank name → 400
+    const client = makeClient(redteamToken);
+    const r = await client.post(`/engagements/${engagementId}/simulations`, { name: '' });
+    expect(r.status).toBe(400);
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+
+  test('AC-7.2 — soc role → 403 on POST', async () => {
+    const client = makeClient(socToken);
+    const r = await client.post(`/engagements/${engagementId}/simulations`, {
+      name: 'soc-blocked',
+    });
+    expect(r.status).toBe(403);
+  });
+
+  test('AC-7.3 — unknown engagement → 404; existing engagement with no sims → empty list', async () => {
+    const client = makeClient(redteamToken);
+
+    const r404 = await client.post('/engagements/999999/simulations', { name: 'ghost' });
+    expect(r404.status).toBe(404);
+
+    // Create a fresh engagement with no sims and verify list is empty
+    const freshEng = await createEngagement(redteamToken, {
+      name: 'US-7 empty engagement',
+      start_date: '2026-01-01',
+    });
+    const listR = await client.get(`/engagements/${freshEng.id}/simulations`);
+    expect(listR.status).toBe(200);
+    expect(listR.data).toEqual([]);
+
+    await deleteEngagement(redteamToken, freshEng.id);
+  });
+
+  test('AC-7.4 — GET list returns sims ordered by created_at desc', async () => {
+    const client = makeClient(redteamToken);
+
+    const s1 = await createSimulation(redteamToken, engagementId, { name: 'First sim' });
+    // Small delay so created_at timestamps differ
+    await new Promise((r) => setTimeout(r, 50));
+    const s2 = await createSimulation(redteamToken, engagementId, { name: 'Second sim' });
+
+    const listR = await client.get(`/engagements/${engagementId}/simulations`);
+    expect(listR.status).toBe(200);
+    const list: Simulation[] = listR.data;
+    expect(list.length).toBeGreaterThanOrEqual(2);
+    // Most recent first
+    const ids = list.map((s) => s.id);
+    expect(ids.indexOf(s2.id)).toBeLessThan(ids.indexOf(s1.id));
+
+    await deleteSimulation(redteamToken, s1.id);
+    await deleteSimulation(redteamToken, s2.id);
+  });
+
+  test('AC-7.5 — /engagements/:eid shows Simulations section with list + "Nouvelle simulation" button for redteam', async ({
+    page,
+    context,
+  }) => {
+    const sim = await createSimulation(redteamToken, engagementId, { name: 'Visible sim' });
+
+    await seedTokenInStorage(context, redteamToken);
+    await page.goto(`/engagements/${engagementId}`);
+
+    // Simulations section visible
+    await expect(page.getByRole('heading', { name: /simulations/i })).toBeVisible();
+
+    // Required columns
+    for (const col of ['Name', 'MITRE', 'Status', 'Executed at']) {
+      await expect(page.getByRole('columnheader', { name: new RegExp(col, 'i') })).toBeVisible();
+    }
+
+    // The created simulation row is visible
+    await expect(page.getByRole('row', { name: /Visible sim/i })).toBeVisible();
+
+    // "Nouvelle simulation" button visible for redteam
+    await expect(
+      page.getByRole('link', { name: /nouvelle simulation/i }),
+    ).toBeVisible();
+
+    // SOC should NOT see "Nouvelle simulation" button
+    await seedTokenInStorage(context, socToken);
+    await page.goto(`/engagements/${engagementId}`);
+    await expect(page.getByRole('link', { name: /nouvelle simulation/i })).toHaveCount(0);
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+
+  test('AC-7.6 — clicking a simulation row navigates to /engagements/:eid/simulations/:sid/edit', async ({
+    page,
+    context,
+  }) => {
+    const sim = await createSimulation(redteamToken, engagementId, { name: 'Click me sim' });
+
+    await seedTokenInStorage(context, redteamToken);
+    await page.goto(`/engagements/${engagementId}`);
+
+    // Click the sim name link
+    await page.getByRole('link', { name: 'Click me sim' }).click();
+    await page.waitForURL(
+      new RegExp(`/engagements/${engagementId}/simulations/${sim.id}/edit`),
+    );
+    await expect(page.url()).toContain(
+      `/engagements/${engagementId}/simulations/${sim.id}/edit`,
+    );
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+});

e2e/tests/us8-simulation-redteam-fill.spec.ts

@@ -0,0 +1,216 @@
+/**
+ * US-8 — redteam fills technical details of a simulation.
+ * Covers AC-8.1 → AC-8.6 (AC-8.6 defers to US-10 for the autocomplete UI detail).
+ */
+import { test, expect } from '@playwright/test';
+import {
+  adminToken,
+  createEngagement,
+  deleteEngagement,
+  deleteUserByUsername,
+  ensureUser,
+  login,
+  makeClient,
+} from '../fixtures/api';
+import { seedTokenInStorage } from '../fixtures/auth';
+
+const REDTEAM_USER = 'us8-redteam';
+const SOC_USER = 'us8-soc';
+const PASS = 'us8-pass-strong';
+
+interface Simulation {
+  id: number;
+  engagement_id: number;
+  name: string;
+  status: string;
+  [key: string]: unknown;
+}
+
+async function createSimulation(
+  token: string,
+  engagementId: number,
+  name = 'US-8 sim',
+): Promise<Simulation> {
+  const client = makeClient(token);
+  const r = await client.post(`/engagements/${engagementId}/simulations`, { name });
+  if (r.status !== 201) {
+    throw new Error(`create simulation failed: ${r.status} ${JSON.stringify(r.data)}`);
+  }
+  return r.data as Simulation;
+}
+
+async function deleteSimulation(token: string, simId: number): Promise<void> {
+  const client = makeClient(token);
+  await client.delete(`/simulations/${simId}`);
+}
+
+test.describe('US-8 — redteam fill simulation details', () => {
+  let redteamToken: string;
+  let socToken: string;
+  let engagementId: number;
+
+  test.beforeAll(async () => {
+    await ensureUser(REDTEAM_USER, PASS, 'redteam');
+    await ensureUser(SOC_USER, PASS, 'soc');
+    redteamToken = (await login(REDTEAM_USER, PASS)).token;
+    socToken = (await login(SOC_USER, PASS)).token;
+    const eng = await createEngagement(redteamToken, {
+      name: 'US-8 Test Engagement',
+      start_date: '2026-01-01',
+    });
+    engagementId = eng.id;
+  });
+
+  test.afterAll(async () => {
+    try {
+      const tok = await adminToken();
+      await deleteEngagement(tok, engagementId);
+      for (const u of [REDTEAM_USER, SOC_USER]) {
+        await deleteUserByUsername(tok, u);
+      }
+    } catch {
+      /* noop */
+    }
+  });
+
+  test('AC-8.1 — PATCH accepts all redteam fields (partial OK)', async () => {
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-8.1 sim');
+    const client = makeClient(redteamToken);
+
+    const patch = {
+      name: 'Updated name',
+      mitre_technique_id: 'T1059',
+      mitre_technique_name: 'Command and Scripting Interpreter',
+      description: 'Some description',
+      commands: 'cmd /c whoami\ncmd /c ipconfig',
+      prerequisites: 'Admin shell',
+      executed_at: '2026-05-01T12:00:00',
+      execution_result: 'Success',
+    };
+    const r = await client.patch(`/simulations/${sim.id}`, patch);
+    expect(r.status).toBe(200);
+    expect(r.data.name).toBe('Updated name');
+    expect(r.data.mitre_technique_id).toBe('T1059');
+    expect(r.data.mitre_technique_name).toBe('Command and Scripting Interpreter');
+    expect(r.data.description).toBe('Some description');
+    expect(r.data.commands).toBe('cmd /c whoami\ncmd /c ipconfig');
+    expect(r.data.prerequisites).toBe('Admin shell');
+    expect(r.data.execution_result).toBe('Success');
+
+    // Partial PATCH (only name) should also work
+    const rPartial = await client.patch(`/simulations/${sim.id}`, { name: 'Partial update' });
+    expect(rPartial.status).toBe(200);
+    expect(rPartial.data.name).toBe('Partial update');
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+
+  test('AC-8.2 — auto-transition pending→in_progress on PATCH with non-empty redteam field', async () => {
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-8.2 sim');
+    expect(sim.status).toBe('pending');
+    const client = makeClient(redteamToken);
+
+    // PATCH with a non-empty redteam field triggers auto-transition
+    const r = await client.patch(`/simulations/${sim.id}`, { name: 'trigger transition' });
+    expect(r.status).toBe(200);
+    expect(r.data.status).toBe('in_progress');
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+
+  test('AC-8.2 — auto-transition does NOT trigger for soc PATCH', async () => {
+    // Create sim then transition it to review_required so SOC can patch it
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-8.2 soc no-trigger');
+    const rtClient = makeClient(redteamToken);
+    // Move to in_progress first
+    await rtClient.patch(`/simulations/${sim.id}`, { name: 'AC-8.2 soc no-trigger' });
+    // Move to review_required
+    const tr = await rtClient.post(`/simulations/${sim.id}/transition`, {
+      to: 'review_required',
+    });
+    expect(tr.status).toBe(200);
+
+    // Now SOC patches soc-only fields — status must NOT change
+    const socClient = makeClient(socToken);
+    const rSoc = await socClient.patch(`/simulations/${sim.id}`, { soc_comment: 'noted' });
+    expect(rSoc.status).toBe(200);
+    expect(rSoc.data.status).toBe('review_required');
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+
+  test('AC-8.3 — commands stored and returned as raw multiline string', async () => {
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-8.3 sim');
+    const client = makeClient(redteamToken);
+    const cmds = 'cmd1\ncmd2\ncmd3';
+    const r = await client.patch(`/simulations/${sim.id}`, { commands: cmds });
+    expect(r.status).toBe(200);
+    expect(r.data.commands).toBe(cmds);
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+
+  test('AC-8.4 — invalid executed_at → 400; null clears field', async () => {
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-8.4 sim');
+    const client = makeClient(redteamToken);
+
+    const rBad = await client.patch(`/simulations/${sim.id}`, {
+      executed_at: 'not-a-date',
+    });
+    expect(rBad.status).toBe(400);
+    expect(rBad.data.error).toMatch(/invalid executed_at/i);
+
+    // Valid ISO 8601
+    const rOk = await client.patch(`/simulations/${sim.id}`, {
+      executed_at: '2026-05-01T09:00:00',
+    });
+    expect(rOk.status).toBe(200);
+
+    // Null clears the field
+    const rNull = await client.patch(`/simulations/${sim.id}`, { executed_at: null });
+    expect(rNull.status).toBe(200);
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+
+  test('AC-8.5 — edit page shows Red Team and SOC sections; redteam sees both editable, name validation', async ({
+    page,
+    context,
+  }) => {
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-8.5 sim');
+
+    await seedTokenInStorage(context, redteamToken);
+    await page.goto(`/engagements/${engagementId}/simulations/${sim.id}/edit`);
+
+    // Both sections visible
+    await expect(page.getByRole('heading', { name: /red team/i })).toBeVisible();
+    await expect(page.getByRole('heading', { name: /soc/i })).toBeVisible();
+
+    // Name field is present and enabled for redteam
+    const nameField = page.locator('#sim-name');
+    await expect(nameField).toBeVisible();
+    await expect(nameField).toBeEnabled();
+
+    // Clear the name, try to save → client validation error
+    await nameField.fill('');
+    await page.getByRole('button', { name: /save red team/i }).click();
+    await expect(page.getByText(/name is required/i)).toBeVisible();
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+
+  test('AC-8.6 — MITRE technique picker is present on the edit form', async ({
+    page,
+    context,
+  }) => {
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-8.6 sim');
+
+    await seedTokenInStorage(context, redteamToken);
+    await page.goto(`/engagements/${engagementId}/simulations/${sim.id}/edit`);
+
+    // MitreTechniquePicker renders an input with combobox role
+    await expect(page.getByRole('combobox', { name: /mitre technique/i })).toBeVisible();
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+});

e2e/tests/us9-soc-restricted-edit.spec.ts

@@ -0,0 +1,200 @@
+/**
+ * US-9 — SOC analyst fills their part; redteam fields blocked.
+ * Covers AC-9.1 → AC-9.4.
+ */
+import { test, expect } from '@playwright/test';
+import {
+  adminToken,
+  createEngagement,
+  deleteEngagement,
+  deleteUserByUsername,
+  ensureUser,
+  login,
+  makeClient,
+} from '../fixtures/api';
+import { seedTokenInStorage } from '../fixtures/auth';
+
+const REDTEAM_USER = 'us9-redteam';
+const SOC_USER = 'us9-soc';
+const PASS = 'us9-pass-strong';
+
+interface Simulation {
+  id: number;
+  status: string;
+  [key: string]: unknown;
+}
+
+async function createSimulation(
+  token: string,
+  engagementId: number,
+  name = 'US-9 sim',
+): Promise<Simulation> {
+  const client = makeClient(token);
+  const r = await client.post(`/engagements/${engagementId}/simulations`, { name });
+  if (r.status !== 201) {
+    throw new Error(`create simulation failed: ${r.status} ${JSON.stringify(r.data)}`);
+  }
+  return r.data as Simulation;
+}
+
+async function deleteSimulation(token: string, simId: number): Promise<void> {
+  const client = makeClient(token);
+  await client.delete(`/simulations/${simId}`);
+}
+
+async function advanceToReviewRequired(
+  redteamToken: string,
+  simId: number,
+): Promise<void> {
+  const client = makeClient(redteamToken);
+  // Trigger auto-transition to in_progress
+  await client.patch(`/simulations/${simId}`, { name: 'ready' });
+  // Transition to review_required
+  const r = await client.post(`/simulations/${simId}/transition`, {
+    to: 'review_required',
+  });
+  if (r.status !== 200) {
+    throw new Error(`transition to review_required failed: ${r.status}`);
+  }
+}
+
+test.describe('US-9 — SOC restricted edit', () => {
+  let redteamToken: string;
+  let socToken: string;
+  let engagementId: number;
+
+  test.beforeAll(async () => {
+    await ensureUser(REDTEAM_USER, PASS, 'redteam');
+    await ensureUser(SOC_USER, PASS, 'soc');
+    redteamToken = (await login(REDTEAM_USER, PASS)).token;
+    socToken = (await login(SOC_USER, PASS)).token;
+    const eng = await createEngagement(redteamToken, {
+      name: 'US-9 Test Engagement',
+      start_date: '2026-01-01',
+    });
+    engagementId = eng.id;
+  });
+
+  test.afterAll(async () => {
+    try {
+      const tok = await adminToken();
+      await deleteEngagement(tok, engagementId);
+      for (const u of [REDTEAM_USER, SOC_USER]) {
+        await deleteUserByUsername(tok, u);
+      }
+    } catch {
+      /* noop */
+    }
+  });
+
+  test('AC-9.1 — soc PATCH with redteam field → 403 soc cannot edit redteam fields', async () => {
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-9.1 sim');
+    await advanceToReviewRequired(redteamToken, sim.id);
+
+    const socClient = makeClient(socToken);
+
+    // Redteam field in payload → 403
+    const r = await socClient.patch(`/simulations/${sim.id}`, {
+      name: 'SOC tries to change name',
+    });
+    expect(r.status).toBe(403);
+    expect(r.data.error).toMatch(/soc cannot edit redteam fields/i);
+
+    // SOC-only fields → 200
+    const rOk = await socClient.patch(`/simulations/${sim.id}`, {
+      soc_comment: 'Detected',
+      log_source: 'SIEM',
+      logs: 'log entry',
+      incident_number: 'INC-001',
+    });
+    expect(rOk.status).toBe(200);
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+
+  test('AC-9.2 — soc PATCH blocked when status is pending or in_progress', async () => {
+    const socClient = makeClient(socToken);
+
+    // pending → 403
+    const simPending = await createSimulation(redteamToken, engagementId, 'AC-9.2 pending');
+    const rPending = await socClient.patch(`/simulations/${simPending.id}`, {
+      soc_comment: 'too early',
+    });
+    expect(rPending.status).toBe(403);
+    expect(rPending.data.error).toMatch(/simulation not ready for SOC review/i);
+
+    // in_progress → 403
+    const simInProgress = await createSimulation(
+      redteamToken,
+      engagementId,
+      'AC-9.2 in_progress',
+    );
+    const rtClient = makeClient(redteamToken);
+    await rtClient.patch(`/simulations/${simInProgress.id}`, { name: 'trigger' });
+    const rInProgress = await socClient.patch(`/simulations/${simInProgress.id}`, {
+      soc_comment: 'still too early',
+    });
+    expect(rInProgress.status).toBe(403);
+    expect(rInProgress.data.error).toMatch(/simulation not ready for SOC review/i);
+
+    await deleteSimulation(redteamToken, simPending.id);
+    await deleteSimulation(redteamToken, simInProgress.id);
+  });
+
+  test('AC-9.3 — edit page for soc: RT section read-only, SOC section editable when review_required', async ({
+    page,
+    context,
+  }) => {
+    const sim = await createSimulation(redteamToken, engagementId, 'AC-9.3 sim');
+    await advanceToReviewRequired(redteamToken, sim.id);
+
+    await seedTokenInStorage(context, socToken);
+    await page.goto(`/engagements/${engagementId}/simulations/${sim.id}/edit`);
+
+    // RT fields are disabled
+    await expect(page.locator('#sim-name')).toBeDisabled();
+    await expect(page.locator('#sim-description')).toBeDisabled();
+    await expect(page.locator('#sim-commands')).toBeDisabled();
+
+    // SOC fields are enabled
+    await expect(page.locator('#sim-log-source')).toBeEnabled();
+    await expect(page.locator('#sim-logs')).toBeEnabled();
+    await expect(page.locator('#sim-soc-comment')).toBeEnabled();
+    await expect(page.locator('#sim-incident')).toBeEnabled();
+
+    await deleteSimulation(redteamToken, sim.id);
+  });
+
+  test('AC-9.4 — soc visits pending/in_progress simulation: banner visible, SOC fields disabled', async ({
+    page,
+    context,
+  }) => {
+    // Test with pending status
+    const simPending = await createSimulation(redteamToken, engagementId, 'AC-9.4 pending');
+
+    await seedTokenInStorage(context, socToken);
+    await page.goto(`/engagements/${engagementId}/simulations/${simPending.id}/edit`);
+
+    // Banner must be visible
+    await expect(page.getByTestId('soc-blocked-banner')).toBeVisible();
+    await expect(
+      page.getByText(/simulation pas encore en revue/i),
+    ).toBeVisible();
+
+    // SOC fields are disabled
+    await expect(page.locator('#sim-log-source')).toBeDisabled();
+    await expect(page.locator('#sim-soc-comment')).toBeDisabled();
+
+    // Test with in_progress status
+    const simIP = await createSimulation(redteamToken, engagementId, 'AC-9.4 in_progress');
+    const rtClient = makeClient(redteamToken);
+    await rtClient.patch(`/simulations/${simIP.id}`, { name: 'trigger' });
+
+    await page.goto(`/engagements/${engagementId}/simulations/${simIP.id}/edit`);
+    await expect(page.getByTestId('soc-blocked-banner')).toBeVisible();
+    await expect(page.locator('#sim-log-source')).toBeDisabled();
+
+    await deleteSimulation(redteamToken, simPending.id);
+    await deleteSimulation(redteamToken, simIP.id);
+  });
+});

frontend/src/App.tsx

@@ -7,6 +7,7 @@ import { EngagementsListPage } from '@/pages/EngagementsListPage';
 import { EngagementFormPage } from '@/pages/EngagementFormPage';
 import { EngagementDetailPage } from '@/pages/EngagementDetailPage';
 import { UsersAdminPage } from '@/pages/UsersAdminPage';
+import { SimulationFormPage } from '@/pages/SimulationFormPage';
 
 /**
  * Router. Auth + role gates handled by <ProtectedRoute />.
@@ -29,8 +30,15 @@ export function App(): JSX.Element {
             <Route element={<ProtectedRoute roles={['admin', 'redteam']} />}>
               <Route path="/engagements/new" element={<EngagementFormPage />} />
               <Route path="/engagements/:id/edit" element={<EngagementFormPage />} />
+              <Route path="/engagements/:eid/simulations/new" element={<SimulationFormPage />} />
             </Route>
 
+            {/* simulation edit — all authenticated roles, RBAC handled inside the page */}
+            <Route
+              path="/engagements/:eid/simulations/:sid/edit"
+              element={<SimulationFormPage />}
+            />
+
             {/* admin-only routes */}
             <Route element={<ProtectedRoute roles={['admin']} />}>
               <Route path="/admin/users" element={<UsersAdminPage />} />

frontend/src/api/mitre.ts

@@ -0,0 +1,9 @@
+import { apiClient } from './client';
+import type { MitreTechnique } from './types';
+
+export async function searchMitreTechniques(query: string): Promise<MitreTechnique[]> {
+  const { data } = await apiClient.get<MitreTechnique[]>('/mitre/techniques', {
+    params: { q: query },
+  });
+  return data;
+}

frontend/src/api/simulations.ts

@@ -0,0 +1,37 @@
+import { apiClient } from './client';
+import type { Simulation, SimulationCreateInput, SimulationPatchInput, SimulationStatus } from './types';
+
+export async function listSimulations(engagementId: number): Promise<Simulation[]> {
+  const { data } = await apiClient.get<Simulation[]>(`/engagements/${engagementId}/simulations`);
+  return data;
+}
+
+export async function createSimulation(
+  engagementId: number,
+  input: SimulationCreateInput,
+): Promise<Simulation> {
+  const { data } = await apiClient.post<Simulation>(`/engagements/${engagementId}/simulations`, input);
+  return data;
+}
+
+export async function getSimulation(id: number): Promise<Simulation> {
+  const { data } = await apiClient.get<Simulation>(`/simulations/${id}`);
+  return data;
+}
+
+export async function updateSimulation(id: number, patch: SimulationPatchInput): Promise<Simulation> {
+  const { data } = await apiClient.patch<Simulation>(`/simulations/${id}`, patch);
+  return data;
+}
+
+export async function deleteSimulation(id: number): Promise<void> {
+  await apiClient.delete(`/simulations/${id}`);
+}
+
+export async function transitionSimulation(
+  id: number,
+  to: Extract<SimulationStatus, 'review_required' | 'done'>,
+): Promise<Simulation> {
+  const { data } = await apiClient.post<Simulation>(`/simulations/${id}/transition`, { to });
+  return data;
+}

frontend/src/api/types.ts

@@ -52,3 +52,51 @@ export interface UserPatchInput {
 export interface ApiError {
   error: string;
 }
+
+export type SimulationStatus = 'pending' | 'in_progress' | 'review_required' | 'done';
+
+export interface MitreTechnique {
+  id: string;
+  name: string;
+  tactics: string[];
+}
+
+export interface Simulation {
+  id: number;
+  engagement_id: number;
+  name: string;
+  mitre_technique_id: string | null;
+  mitre_technique_name: string | null;
+  description: string | null;
+  commands: string | null;
+  prerequisites: string | null;
+  executed_at: string | null;
+  execution_result: string | null;
+  log_source: string | null;
+  logs: string | null;
+  soc_comment: string | null;
+  incident_number: string | null;
+  status: SimulationStatus;
+  created_at: string;
+  updated_at: string | null;
+  created_by: { id: number; username: string };
+}
+
+export interface SimulationCreateInput {
+  name: string;
+}
+
+export interface SimulationPatchInput {
+  name?: string;
+  mitre_technique_id?: string | null;
+  mitre_technique_name?: string | null;
+  description?: string | null;
+  commands?: string | null;
+  prerequisites?: string | null;
+  executed_at?: string | null;
+  execution_result?: string | null;
+  log_source?: string | null;
+  logs?: string | null;
+  soc_comment?: string | null;
+  incident_number?: string | null;
+}

frontend/src/components/ConfirmDialog.tsx

@@ -0,0 +1,48 @@
+interface ConfirmDialogProps {
+  title: string;
+  description: string;
+  confirmLabel?: string;
+  cancelLabel?: string;
+  onConfirm: () => void;
+  onCancel: () => void;
+  destructive?: boolean;
+}
+
+export function ConfirmDialog({
+  title,
+  description,
+  confirmLabel = 'Confirm',
+  cancelLabel = 'Cancel',
+  onConfirm,
+  onCancel,
+  destructive = false,
+}: ConfirmDialogProps): JSX.Element {
+  return (
+    <div
+      role="dialog"
+      aria-modal="true"
+      aria-labelledby="confirm-dialog-title"
+      className="fixed inset-0 z-50 flex items-center justify-center"
+    >
+      <div className="absolute inset-0 bg-ink/40" onClick={onCancel} aria-hidden="true" />
+      <div className="relative card-product shadow-floating max-w-sm w-full mx-md flex flex-col gap-md">
+        <h2 id="confirm-dialog-title" className="text-[20px] font-medium text-ink">
+          {title}
+        </h2>
+        <p className="text-[16px] text-charcoal">{description}</p>
+        <div className="flex items-center gap-md pt-xs">
+          <button
+            type="button"
+            className={destructive ? 'btn-ink' : 'btn-primary'}
+            onClick={onConfirm}
+          >
+            {confirmLabel}
+          </button>
+          <button type="button" className="btn-outline-ink" onClick={onCancel}>
+            {cancelLabel}
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}

frontend/src/components/MitreTechniquePicker.tsx

@@ -0,0 +1,195 @@
+import {
+  useEffect,
+  useRef,
+  useState,
+  type KeyboardEvent,
+} from 'react';
+import { extractApiError } from '@/api/client';
+import type { MitreTechnique } from '@/api/types';
+import { useMitreSearch } from '@/hooks/useMitre';
+
+interface MitreTechniquePickerProps {
+  techniqueId: string | null;
+  techniqueName: string | null;
+  onChange: (id: string | null, name: string | null) => void;
+  disabled?: boolean;
+}
+
+function formatOption(t: MitreTechnique): string {
+  const tacticList = t.tactics.length > 0 ? ` (${t.tactics[0]})` : '';
+  return `${t.id} — ${t.name}${tacticList}`;
+}
+
+const DEBOUNCE_MS = 200;
+
+export function MitreTechniquePicker({
+  techniqueId,
+  techniqueName,
+  onChange,
+  disabled = false,
+}: MitreTechniquePickerProps): JSX.Element {
+  const [inputValue, setInputValue] = useState(
+    techniqueId && techniqueName ? `${techniqueId} — ${techniqueName}` : '',
+  );
+  const [query, setQuery] = useState('');
+  const [open, setOpen] = useState(false);
+  const [activeIndex, setActiveIndex] = useState(-1);
+  const debounceRef = useRef<ReturnType<typeof setTimeout> | null>(null);
+  const containerRef = useRef<HTMLDivElement>(null);
+  const listRef = useRef<HTMLUListElement>(null);
+  // True once we've synced the first real techniqueId from props (parent/API load).
+  // After that we stop reacting to null, so keystrokes that emit onChange(null,null)
+  // don't propagate back and wipe the input mid-stroke.
+  const hasHydratedFromProps = useRef(false);
+
+  useEffect(() => {
+    if (techniqueId && techniqueName) {
+      setInputValue(`${techniqueId} — ${techniqueName}`);
+      hasHydratedFromProps.current = true;
+    } else if (!techniqueId && !hasHydratedFromProps.current) {
+      setInputValue('');
+    }
+  }, [techniqueId, techniqueName]);
+
+  const { data: results, isFetching, isError, error } = useMitreSearch(query, open);
+
+  const items = results ?? [];
+
+  const handleInputChange = (value: string) => {
+    setInputValue(value);
+    // Clear the selection when user starts typing
+    onChange(null, null);
+    setOpen(true);
+    setActiveIndex(-1);
+
+    if (debounceRef.current) clearTimeout(debounceRef.current);
+    debounceRef.current = setTimeout(() => {
+      setQuery(value);
+    }, DEBOUNCE_MS);
+  };
+
+  const selectItem = (item: MitreTechnique) => {
+    setInputValue(formatOption(item));
+    onChange(item.id, item.name);
+    setOpen(false);
+    setActiveIndex(-1);
+    setQuery('');
+  };
+
+  const handleKeyDown = (e: KeyboardEvent<HTMLInputElement>) => {
+    if (!open || items.length === 0) {
+      if (e.key === 'Escape') setOpen(false);
+      return;
+    }
+    if (e.key === 'ArrowDown') {
+      e.preventDefault();
+      setActiveIndex((i) => Math.min(i + 1, items.length - 1));
+    } else if (e.key === 'ArrowUp') {
+      e.preventDefault();
+      setActiveIndex((i) => Math.max(i - 1, 0));
+    } else if (e.key === 'Enter') {
+      e.preventDefault();
+      if (activeIndex >= 0 && items[activeIndex]) {
+        selectItem(items[activeIndex]);
+      }
+    } else if (e.key === 'Escape') {
+      setOpen(false);
+      setActiveIndex(-1);
+    }
+  };
+
+  // Scroll active item into view
+  useEffect(() => {
+    if (activeIndex >= 0 && listRef.current) {
+      const el = listRef.current.children[activeIndex] as HTMLElement | undefined;
+      el?.scrollIntoView?.({ block: 'nearest' });
+    }
+  }, [activeIndex]);
+
+  // Close dropdown on click outside
+  useEffect(() => {
+    const onPointerDown = (e: PointerEvent) => {
+      if (containerRef.current && !containerRef.current.contains(e.target as Node)) {
+        setOpen(false);
+      }
+    };
+    document.addEventListener('pointerdown', onPointerDown);
+    return () => document.removeEventListener('pointerdown', onPointerDown);
+  }, []);
+
+  const listboxId = 'mitre-picker-listbox';
+
+  return (
+    <div ref={containerRef} className="relative">
+      <input
+        type="text"
+        role="combobox"
+        aria-expanded={open}
+        aria-controls={listboxId}
+        aria-activedescendant={activeIndex >= 0 ? `mitre-option-${activeIndex}` : undefined}
+        aria-label="MITRE technique"
+        className="text-input"
+        value={inputValue}
+        onChange={(e) => handleInputChange(e.target.value)}
+        onFocus={() => {
+          if (!techniqueId) setOpen(true);
+        }}
+        onKeyDown={handleKeyDown}
+        disabled={disabled}
+        placeholder="Search by ID or name (e.g. T1059)"
+        autoComplete="off"
+      />
+
+      {open && (
+        <div className="absolute z-20 w-full mt-xxs bg-canvas border border-steel rounded-md shadow-floating overflow-hidden">
+          {isFetching && (
+            <div className="px-md py-sm text-[14px] text-graphite">Searching…</div>
+          )}
+
+          {isError && !isFetching && (
+            <div className="px-md py-sm text-[14px] text-bloom-deep" role="alert">
+              {extractApiError(error, 'MITRE search unavailable')}
+            </div>
+          )}
+
+          {!isFetching && !isError && items.length === 0 && query.trim().length > 0 && (
+            <div className="px-md py-sm text-[14px] text-graphite">No results</div>
+          )}
+
+          {!isFetching && items.length > 0 && (
+            <ul
+              id={listboxId}
+              ref={listRef}
+              role="listbox"
+              aria-label="MITRE techniques"
+              className="max-h-64 overflow-y-auto"
+            >
+              {items.map((item, i) => (
+                <li
+                  key={item.id}
+                  id={`mitre-option-${i}`}
+                  role="option"
+                  aria-selected={i === activeIndex}
+                  className={`px-md py-sm text-[14px] cursor-pointer select-none ${
+                    i === activeIndex ? 'bg-primary-soft text-ink' : 'text-ink hover:bg-cloud'
+                  }`}
+                  onPointerDown={(e) => {
+                    // Prevent input blur before we handle the click
+                    e.preventDefault();
+                    selectItem(item);
+                  }}
+                >
+                  <span className="font-medium">{item.id}</span>
+                  <span className="text-charcoal"> — {item.name}</span>
+                  {item.tactics.length > 0 && (
+                    <span className="text-graphite"> ({item.tactics[0]})</span>
+                  )}
+                </li>
+              ))}
+            </ul>
+          )}
+        </div>
+      )}
+    </div>
+  );
+}

frontend/src/components/SimulationList.tsx

@@ -0,0 +1,113 @@
+import { Link, useNavigate } from 'react-router-dom';
+import { extractApiError } from '@/api/client';
+import { useAuth } from '@/hooks/useAuth';
+import { useEngagementSimulations } from '@/hooks/useSimulations';
+import { LoadingState } from './LoadingState';
+import { ErrorState } from './ErrorState';
+import { EmptyState } from './EmptyState';
+import { SimulationStatusBadge } from './SimulationStatusBadge';
+
+interface SimulationListProps {
+  engagementId: number;
+}
+
+function formatDate(value: string | null): string {
+  if (!value) return '—';
+  return value.replace('T', ' ').slice(0, 16);
+}
+
+export function SimulationList({ engagementId }: SimulationListProps): JSX.Element {
+  const { data, isLoading, isError, error, refetch } = useEngagementSimulations(engagementId);
+  const { canEditEngagements } = useAuth();
+  const navigate = useNavigate();
+
+  if (isLoading) return <LoadingState label="Loading simulations…" />;
+
+  if (isError) {
+    return (
+      <ErrorState
+        message={extractApiError(error, 'Could not load simulations')}
+        onRetry={() => refetch()}
+      />
+    );
+  }
+
+  if (!data || data.length === 0) {
+    return (
+      <EmptyState
+        title="No simulations yet"
+        description="Create the first simulation to start tracking red team tests."
+        action={
+          canEditEngagements ? (
+            <Link
+              to={`/engagements/${engagementId}/simulations/new`}
+              className="btn-primary"
+              data-testid="new-simulation-btn"
+            >
+              Nouvelle simulation
+            </Link>
+          ) : undefined
+        }
+      />
+    );
+  }
+
+  return (
+    <div className="flex flex-col gap-md">
+      <div className="flex items-center justify-between">
+        <h2 className="text-[24px] font-medium text-ink">Simulations</h2>
+        {canEditEngagements ? (
+          <Link
+            to={`/engagements/${engagementId}/simulations/new`}
+            className="btn-primary"
+            data-testid="new-simulation-btn"
+          >
+            Nouvelle simulation
+          </Link>
+        ) : null}
+      </div>
+
+      <div className="card-product overflow-hidden p-0">
+        <table className="w-full text-left">
+          <thead className="bg-cloud border-b border-hairline">
+            <tr className="text-[12px] uppercase tracking-[0.5px] text-graphite">
+              <th className="px-xl py-md">Name</th>
+              <th className="px-xl py-md">MITRE</th>
+              <th className="px-xl py-md">Status</th>
+              <th className="px-xl py-md">Executed at</th>
+            </tr>
+          </thead>
+          <tbody>
+            {data.map((sim) => (
+              <tr
+                key={sim.id}
+                className="border-b border-hairline last:border-0 hover:bg-cloud cursor-pointer"
+                onClick={() =>
+                  navigate(`/engagements/${engagementId}/simulations/${sim.id}/edit`)
+                }
+              >
+                <td className="px-xl py-md">
+                  <Link
+                    to={`/engagements/${engagementId}/simulations/${sim.id}/edit`}
+                    className="text-ink font-medium hover:underline"
+                  >
+                    {sim.name}
+                  </Link>
+                </td>
+                <td className="px-xl py-md text-charcoal text-[14px]">
+                  {sim.mitre_technique_id ?? '—'}
+                </td>
+                <td className="px-xl py-md">
+                  <SimulationStatusBadge status={sim.status} />
+                </td>
+                <td className="px-xl py-md text-charcoal text-[14px]">
+                  {formatDate(sim.executed_at)}
+                </td>
+              </tr>
+            ))}
+          </tbody>
+        </table>
+      </div>
+    </div>
+  );
+}

frontend/src/components/SimulationStatusBadge.tsx

@@ -0,0 +1,28 @@
+import type { SimulationStatus } from '@/api/types';
+
+const LABELS: Record<SimulationStatus, string> = {
+  pending: 'Pending',
+  in_progress: 'In progress',
+  review_required: 'Review required',
+  done: 'Done',
+};
+
+// pending=fog, in_progress=primary-soft, review_required=bloom-coral, done=storm-deep
+const STYLES: Record<SimulationStatus, string> = {
+  pending: 'bg-fog text-charcoal border border-hairline',
+  in_progress: 'bg-primary-soft text-primary-deep',
+  review_required: 'bg-bloom-coral text-canvas',
+  done: 'bg-storm-deep text-canvas',
+};
+
+export function SimulationStatusBadge({ status }: { status: SimulationStatus }): JSX.Element {
+  return (
+    <span
+      className={`inline-flex items-center rounded-lg px-3 py-[6px] text-[14px] leading-[1.3] font-medium ${STYLES[status]}`}
+      data-testid="simulation-status-badge"
+      data-status={status}
+    >
+      {LABELS[status]}
+    </span>
+  );
+}

frontend/src/hooks/useMitre.ts

@@ -0,0 +1,11 @@
+import { useQuery } from '@tanstack/react-query';
+import { searchMitreTechniques } from '@/api/mitre';
+
+export function useMitreSearch(query: string, enabled: boolean) {
+  return useQuery({
+    queryKey: ['mitre', 'techniques', query],
+    queryFn: () => searchMitreTechniques(query),
+    enabled: enabled && query.trim().length > 0,
+    staleTime: 5 * 60 * 1000,
+  });
+}

frontend/src/hooks/useSimulations.ts

@@ -0,0 +1,76 @@
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import {
+  createSimulation,
+  deleteSimulation,
+  getSimulation,
+  listSimulations,
+  transitionSimulation,
+  updateSimulation,
+} from '@/api/simulations';
+import type { SimulationCreateInput, SimulationPatchInput, SimulationStatus } from '@/api/types';
+
+function simulationsKey(engagementId: number) {
+  return ['engagements', engagementId, 'simulations'] as const;
+}
+
+function simulationKey(id: number) {
+  return ['simulations', id] as const;
+}
+
+export function useEngagementSimulations(engagementId: number | undefined) {
+  return useQuery({
+    queryKey: engagementId ? simulationsKey(engagementId) : ['simulations', 'none'],
+    queryFn: () => listSimulations(engagementId as number),
+    enabled: typeof engagementId === 'number' && !Number.isNaN(engagementId),
+  });
+}
+
+export function useSimulation(id: number | undefined) {
+  return useQuery({
+    queryKey: id ? simulationKey(id) : ['simulations', 'none'],
+    queryFn: () => getSimulation(id as number),
+    enabled: typeof id === 'number' && !Number.isNaN(id),
+  });
+}
+
+export function useCreateSimulation(engagementId: number) {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (input: SimulationCreateInput) => createSimulation(engagementId, input),
+    onSuccess: () => qc.invalidateQueries({ queryKey: simulationsKey(engagementId) }),
+  });
+}
+
+export function useUpdateSimulation(id: number, engagementId: number) {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (patch: SimulationPatchInput) => updateSimulation(id, patch),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: simulationKey(id) });
+      qc.invalidateQueries({ queryKey: simulationsKey(engagementId) });
+    },
+  });
+}
+
+export function useDeleteSimulation(engagementId: number) {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (id: number) => deleteSimulation(id),
+    onSuccess: (_data, id) => {
+      qc.invalidateQueries({ queryKey: simulationKey(id) });
+      qc.invalidateQueries({ queryKey: simulationsKey(engagementId) });
+    },
+  });
+}
+
+export function useTransitionSimulation(id: number, engagementId: number) {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (to: Extract<SimulationStatus, 'review_required' | 'done'>) =>
+      transitionSimulation(id, to),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: simulationKey(id) });
+      qc.invalidateQueries({ queryKey: simulationsKey(engagementId) });
+    },
+  });
+}

frontend/src/pages/EngagementDetailPage.tsx

@@ -5,6 +5,7 @@ import { useEngagement } from '@/hooks/useEngagements';
 import { LoadingState } from '@/components/LoadingState';
 import { ErrorState } from '@/components/ErrorState';
 import { StatusBadge } from '@/components/StatusBadge';
+import { SimulationList } from '@/components/SimulationList';
 
 export function EngagementDetailPage(): JSX.Element {
   const { id } = useParams<{ id: string }>();
@@ -71,13 +72,8 @@ export function EngagementDetailPage(): JSX.Element {
         </div>
       </section>
 
-      {/* Sprint 2 placeholder per AC-4.9 */}
+      <section>
-      <section className="bg-ink text-ink-on rounded-xl p-xxl">
+        <SimulationList engagementId={eng.id} />
-        <h2 className="text-[32px] font-medium leading-none">Simulations</h2>
-        <p className="text-[16px] mt-sm text-steel">
-          Simulations à venir au Sprint 2 — tracking of red team tests and SOC detection coverage
-          will live here.
-        </p>
       </section>
     </div>
   );

frontend/src/pages/SimulationFormPage.tsx

@@ -0,0 +1,507 @@
+import { useEffect, useState, type FormEvent } from 'react';
+import { Link, useNavigate, useParams } from 'react-router-dom';
+import { extractApiError } from '@/api/client';
+import type { SimulationPatchInput } from '@/api/types';
+import { useAuth } from '@/hooks/useAuth';
+import { useToast } from '@/hooks/useToast';
+import {
+  useCreateSimulation,
+  useDeleteSimulation,
+  useSimulation,
+  useTransitionSimulation,
+  useUpdateSimulation,
+} from '@/hooks/useSimulations';
+import { FormField, TextArea, TextInput } from '@/components/FormField';
+import { LoadingState } from '@/components/LoadingState';
+import { ErrorState } from '@/components/ErrorState';
+import { SimulationStatusBadge } from '@/components/SimulationStatusBadge';
+import { ConfirmDialog } from '@/components/ConfirmDialog';
+import { MitreTechniquePicker } from '@/components/MitreTechniquePicker';
+
+interface RedteamFormState {
+  name: string;
+  mitre_technique_id: string | null;
+  mitre_technique_name: string | null;
+  description: string;
+  commands: string;
+  prerequisites: string;
+  executed_at: string;
+  execution_result: string;
+}
+
+interface SocFormState {
+  log_source: string;
+  logs: string;
+  soc_comment: string;
+  incident_number: string;
+}
+
+const EMPTY_RT: RedteamFormState = {
+  name: '',
+  mitre_technique_id: null,
+  mitre_technique_name: null,
+  description: '',
+  commands: '',
+  prerequisites: '',
+  executed_at: '',
+  execution_result: '',
+};
+
+const EMPTY_SOC: SocFormState = {
+  log_source: '',
+  logs: '',
+  soc_comment: '',
+  incident_number: '',
+};
+
+export function SimulationFormPage(): JSX.Element {
+  const { eid, sid } = useParams<{ eid: string; sid: string }>();
+  const engagementId = eid ? Number(eid) : undefined;
+  const simulationId = sid ? Number(sid) : undefined;
+  const isNew = !simulationId;
+
+  const navigate = useNavigate();
+  const { push } = useToast();
+  const { isAdmin, isRedteam, isSoc, canEditEngagements } = useAuth();
+
+  const detail = useSimulation(isNew ? undefined : simulationId);
+  const createMutation = useCreateSimulation(engagementId ?? 0);
+  const updateMutation = useUpdateSimulation(simulationId ?? 0, engagementId ?? 0);
+  const deleteMutation = useDeleteSimulation(engagementId ?? 0);
+  const transitionMutation = useTransitionSimulation(simulationId ?? 0, engagementId ?? 0);
+
+  const [rt, setRt] = useState<RedteamFormState>(EMPTY_RT);
+  const [soc, setSoc] = useState<SocFormState>(EMPTY_SOC);
+  const [nameError, setNameError] = useState<string | null>(null);
+  const [submitError, setSubmitError] = useState<string | null>(null);
+  const [showDeleteConfirm, setShowDeleteConfirm] = useState(false);
+
+  useEffect(() => {
+    if (!isNew && detail.data) {
+      const s = detail.data;
+      setRt({
+        name: s.name,
+        mitre_technique_id: s.mitre_technique_id,
+        mitre_technique_name: s.mitre_technique_name,
+        description: s.description ?? '',
+        commands: s.commands ?? '',
+        prerequisites: s.prerequisites ?? '',
+        executed_at: s.executed_at ? s.executed_at.slice(0, 16) : '',
+        execution_result: s.execution_result ?? '',
+      });
+      setSoc({
+        log_source: s.log_source ?? '',
+        logs: s.logs ?? '',
+        soc_comment: s.soc_comment ?? '',
+        incident_number: s.incident_number ?? '',
+      });
+    }
+  }, [isNew, detail.data]);
+
+  if (!isNew && detail.isLoading) return <LoadingState label="Loading simulation…" />;
+  if (!isNew && detail.isError) {
+    return (
+      <ErrorState
+        message={extractApiError(detail.error, 'Could not load simulation')}
+        onRetry={() => detail.refetch()}
+      />
+    );
+  }
+
+  const simulation = detail.data;
+  const status = simulation?.status;
+
+  // Role-based field locking
+  const canEditRT = isAdmin || isRedteam;
+  // SOC can only edit when status is review_required or done
+  const socCanEdit = isSoc && (status === 'review_required' || status === 'done');
+  const socBlocked = isSoc && (status === 'pending' || status === 'in_progress');
+
+  const canSaveSoc = socCanEdit || canEditEngagements;
+  const rtDisabled = !canEditRT;
+  const socDisabled = !canEditEngagements && !socCanEdit;
+
+  // Transition buttons visibility
+  const showMarkReview =
+    canEditEngagements && (status === 'pending' || status === 'in_progress');
+  const showClose =
+    (canEditEngagements || isSoc) && status === 'review_required';
+
+  const onSubmitNew = async (e: FormEvent) => {
+    e.preventDefault();
+    setNameError(null);
+    setSubmitError(null);
+    if (!rt.name.trim()) {
+      setNameError('Name is required');
+      return;
+    }
+    try {
+      const created = await createMutation.mutateAsync({ name: rt.name.trim() });
+      push('Simulation créée', 'success');
+      navigate(`/engagements/${engagementId}/simulations/${created.id}/edit`);
+    } catch (err) {
+      setSubmitError(extractApiError(err, 'Could not create simulation'));
+    }
+  };
+
+  const onSaveRT = async (e: FormEvent) => {
+    e.preventDefault();
+    setNameError(null);
+    setSubmitError(null);
+    if (!rt.name.trim()) {
+      setNameError('Name is required');
+      return;
+    }
+    const patch: SimulationPatchInput = {
+      name: rt.name.trim(),
+      mitre_technique_id: rt.mitre_technique_id ?? null,
+      mitre_technique_name: rt.mitre_technique_name ?? null,
+      description: rt.description.trim() || null,
+      commands: rt.commands.trim() || null,
+      prerequisites: rt.prerequisites.trim() || null,
+      executed_at: rt.executed_at || null,
+      execution_result: rt.execution_result.trim() || null,
+    };
+    try {
+      await updateMutation.mutateAsync(patch);
+      push('Simulation mise à jour', 'success');
+    } catch (err) {
+      setSubmitError(extractApiError(err, 'Could not update simulation'));
+    }
+  };
+
+  const onSaveSOC = async (e: FormEvent) => {
+    e.preventDefault();
+    setSubmitError(null);
+    const patch: SimulationPatchInput = {
+      log_source: soc.log_source.trim() || null,
+      logs: soc.logs.trim() || null,
+      soc_comment: soc.soc_comment.trim() || null,
+      incident_number: soc.incident_number.trim() || null,
+    };
+    try {
+      await updateMutation.mutateAsync(patch);
+      push('Rapport SOC mis à jour', 'success');
+    } catch (err) {
+      setSubmitError(extractApiError(err, 'Could not update SOC fields'));
+    }
+  };
+
+  const onMarkReview = async () => {
+    try {
+      await transitionMutation.mutateAsync('review_required');
+      push('Simulation marquée en revue', 'success');
+    } catch (err) {
+      push(extractApiError(err, 'Transition impossible'), 'error');
+    }
+  };
+
+  const onClose = async () => {
+    try {
+      await transitionMutation.mutateAsync('done');
+      push('Simulation clôturée', 'success');
+    } catch (err) {
+      push(extractApiError(err, 'Transition impossible'), 'error');
+    }
+  };
+
+  const onDelete = async () => {
+    setShowDeleteConfirm(false);
+    try {
+      await deleteMutation.mutateAsync(simulationId as number);
+      push('Simulation supprimée', 'success');
+      navigate(`/engagements/${engagementId}`);
+    } catch (err) {
+      push(extractApiError(err, 'Suppression impossible'), 'error');
+    }
+  };
+
+  // New simulation form (minimal)
+  if (isNew) {
+    const submitting = createMutation.isPending;
+    return (
+      <div className="flex flex-col gap-xl max-w-2xl">
+        <header>
+          <Link to={`/engagements/${engagementId}`} className="btn-text-link text-[14px]">
+            ← Back to engagement
+          </Link>
+          <h1 className="text-[44px] font-medium leading-none mt-sm">Nouvelle simulation</h1>
+        </header>
+
+        <form onSubmit={onSubmitNew} noValidate className="card-product flex flex-col gap-md">
+          <FormField label="Name" htmlFor="sim-name" required error={nameError}>
+            <TextInput
+              id="sim-name"
+              name="name"
+              value={rt.name}
+              onChange={(e) => setRt({ ...rt, name: e.target.value })}
+              required
+            />
+          </FormField>
+
+          {submitError ? (
+            <div role="alert" className="text-[14px] text-bloom-deep">
+              {submitError}
+            </div>
+          ) : null}
+
+          <div className="flex items-center gap-md pt-sm">
+            <button type="submit" className="btn-primary" disabled={submitting}>
+              {submitting ? 'Creating…' : 'Create simulation'}
+            </button>
+            <Link to={`/engagements/${engagementId}`} className="btn-outline-ink">
+              Cancel
+            </Link>
+          </div>
+        </form>
+      </div>
+    );
+  }
+
+  // Edit form
+  const submitting =
+    updateMutation.isPending || transitionMutation.isPending || deleteMutation.isPending;
+
+  return (
+    <div className="flex flex-col gap-xl max-w-3xl">
+      <header className="flex items-start justify-between gap-md">
+        <div className="flex flex-col gap-sm">
+          <Link to={`/engagements/${engagementId}`} className="btn-text-link text-[14px]">
+            ← Back to engagement
+          </Link>
+          <h1 className="text-[44px] font-medium leading-none">{rt.name || simulation?.name}</h1>
+          {status ? (
+            <div className="flex items-center gap-md">
+              <SimulationStatusBadge status={status} />
+              {simulation?.created_by && (
+                <span className="text-[14px] text-graphite">
+                  Created by <span className="text-ink">{simulation.created_by.username}</span>
+                </span>
+              )}
+            </div>
+          ) : null}
+        </div>
+      </header>
+
+      {/* SOC banner — shown when soc user visits pending/in_progress */}
+      {socBlocked && (
+        <div
+          role="alert"
+          data-testid="soc-blocked-banner"
+          className="rounded-xl px-xl py-md bg-fog border border-hairline text-[14px] text-charcoal"
+        >
+          Simulation pas encore en revue — la redteam doit la marquer comme &quot;Review required&quot; avant
+          que vous puissiez intervenir.
+        </div>
+      )}
+
+      {/* Red Team card */}
+      <form
+        id="rt-form"
+        onSubmit={canEditRT ? onSaveRT : (e) => e.preventDefault()}
+        noValidate
+        className="card-product flex flex-col gap-md"
+      >
+        <h2 className="text-[20px] font-medium text-ink">Red Team</h2>
+
+        <FormField label="Name" htmlFor="sim-name" required error={nameError}>
+          <TextInput
+            id="sim-name"
+            name="name"
+            value={rt.name}
+            onChange={(e) => setRt({ ...rt, name: e.target.value })}
+            disabled={rtDisabled}
+            required
+          />
+        </FormField>
+
+        <FormField label="MITRE Technique" htmlFor="sim-mitre">
+          <MitreTechniquePicker
+            techniqueId={rt.mitre_technique_id}
+            techniqueName={rt.mitre_technique_name}
+            onChange={(id, name) =>
+              setRt({ ...rt, mitre_technique_id: id, mitre_technique_name: name })
+            }
+            disabled={rtDisabled}
+          />
+        </FormField>
+
+        <FormField label="Description" htmlFor="sim-description">
+          <TextArea
+            id="sim-description"
+            name="description"
+            value={rt.description}
+            onChange={(e) => setRt({ ...rt, description: e.target.value })}
+            disabled={rtDisabled}
+          />
+        </FormField>
+
+        <FormField
+          label="Commands"
+          htmlFor="sim-commands"
+          hint="One command per line"
+        >
+          <TextArea
+            id="sim-commands"
+            name="commands"
+            value={rt.commands}
+            onChange={(e) => setRt({ ...rt, commands: e.target.value })}
+            disabled={rtDisabled}
+            className="min-h-[160px] font-mono text-[14px]"
+          />
+        </FormField>
+
+        <FormField label="Prerequisites" htmlFor="sim-prerequisites">
+          <TextArea
+            id="sim-prerequisites"
+            name="prerequisites"
+            value={rt.prerequisites}
+            onChange={(e) => setRt({ ...rt, prerequisites: e.target.value })}
+            disabled={rtDisabled}
+          />
+        </FormField>
+
+        <div className="grid grid-cols-1 md:grid-cols-2 gap-md">
+          <FormField label="Executed at" htmlFor="sim-executed-at">
+            <TextInput
+              id="sim-executed-at"
+              type="datetime-local"
+              name="executed_at"
+              value={rt.executed_at}
+              onChange={(e) => setRt({ ...rt, executed_at: e.target.value })}
+              disabled={rtDisabled}
+            />
+          </FormField>
+
+          <FormField label="Execution result" htmlFor="sim-exec-result">
+            <TextInput
+              id="sim-exec-result"
+              name="execution_result"
+              value={rt.execution_result}
+              onChange={(e) => setRt({ ...rt, execution_result: e.target.value })}
+              disabled={rtDisabled}
+            />
+          </FormField>
+        </div>
+
+        {canEditRT && (
+          <div className="flex items-center gap-md pt-sm border-t border-hairline">
+            <button type="submit" form="rt-form" className="btn-primary" disabled={submitting}>
+              {updateMutation.isPending ? 'Saving…' : 'Save Red Team'}
+            </button>
+          </div>
+        )}
+      </form>
+
+      {/* SOC card */}
+      <form
+        id="soc-form"
+        onSubmit={canSaveSoc ? onSaveSOC : (e) => e.preventDefault()}
+        noValidate
+        className="card-product flex flex-col gap-md"
+      >
+        <h2 className="text-[20px] font-medium text-ink">SOC</h2>
+
+        <FormField label="Log source" htmlFor="sim-log-source">
+          <TextInput
+            id="sim-log-source"
+            name="log_source"
+            value={soc.log_source}
+            onChange={(e) => setSoc({ ...soc, log_source: e.target.value })}
+            disabled={socDisabled}
+          />
+        </FormField>
+
+        <FormField label="Logs" htmlFor="sim-logs">
+          <TextArea
+            id="sim-logs"
+            name="logs"
+            value={soc.logs}
+            onChange={(e) => setSoc({ ...soc, logs: e.target.value })}
+            disabled={socDisabled}
+          />
+        </FormField>
+
+        <FormField label="SOC comment" htmlFor="sim-soc-comment">
+          <TextArea
+            id="sim-soc-comment"
+            name="soc_comment"
+            value={soc.soc_comment}
+            onChange={(e) => setSoc({ ...soc, soc_comment: e.target.value })}
+            disabled={socDisabled}
+          />
+        </FormField>
+
+        <FormField label="Incident number" htmlFor="sim-incident">
+          <TextInput
+            id="sim-incident"
+            name="incident_number"
+            value={soc.incident_number}
+            onChange={(e) => setSoc({ ...soc, incident_number: e.target.value })}
+            disabled={socDisabled}
+          />
+        </FormField>
+
+        {canSaveSoc && (
+          <div className="flex items-center gap-md pt-sm border-t border-hairline">
+            <button type="submit" form="soc-form" className="btn-primary" disabled={submitting}>
+              {updateMutation.isPending ? 'Saving…' : 'Save SOC'}
+            </button>
+          </div>
+        )}
+      </form>
+
+      {submitError ? (
+        <div role="alert" className="text-[14px] text-bloom-deep">
+          {submitError}
+        </div>
+      ) : null}
+
+      {/* Workflow + delete footer */}
+      <div className="flex items-center gap-md flex-wrap">
+        {showMarkReview && (
+          <button
+            type="button"
+            className="btn-outline"
+            onClick={onMarkReview}
+            disabled={transitionMutation.isPending}
+          >
+            Marquer en revue
+          </button>
+        )}
+        {showClose && (
+          <button
+            type="button"
+            className="btn-outline"
+            onClick={onClose}
+            disabled={transitionMutation.isPending}
+          >
+            Clôturer
+          </button>
+        )}
+        {canEditEngagements && simulationId && (
+          <button
+            type="button"
+            className="btn-text-link text-bloom-deep"
+            onClick={() => setShowDeleteConfirm(true)}
+            disabled={submitting}
+          >
+            Supprimer
+          </button>
+        )}
+      </div>
+
+      {showDeleteConfirm && (
+        <ConfirmDialog
+          title="Supprimer la simulation"
+          description="Cette action est irréversible. La simulation sera définitivement supprimée."
+          confirmLabel="Supprimer"
+          cancelLabel="Annuler"
+          destructive
+          onConfirm={onDelete}
+          onCancel={() => setShowDeleteConfirm(false)}
+        />
+      )}
+    </div>
+  );
+}

frontend/tests/MitreTechniquePicker.test.tsx

@@ -0,0 +1,263 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+import { screen, waitFor, act } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import MockAdapter from 'axios-mock-adapter';
+import { apiClient } from '@/api/client';
+import { MitreTechniquePicker } from '@/components/MitreTechniquePicker';
+import { renderWithProviders } from './utils';
+import type { MitreTechnique } from '@/api/types';
+
+const TECHNIQUES: MitreTechnique[] = [
+  { id: 'T1059', name: 'Command and Scripting Interpreter', tactics: ['execution'] },
+  { id: 'T1059.001', name: 'PowerShell', tactics: ['execution'] },
+  { id: 'T1021', name: 'Remote Services', tactics: ['lateral-movement'] },
+];
+
+describe('MitreTechniquePicker', () => {
+  let mock: MockAdapter;
+
+  beforeEach(() => {
+    mock = new MockAdapter(apiClient);
+    vi.useFakeTimers({ shouldAdvanceTime: true });
+  });
+
+  afterEach(() => {
+    mock.restore();
+    vi.useRealTimers();
+  });
+
+  it('renders input with placeholder', () => {
+    vi.useRealTimers();
+    renderWithProviders(
+      <MitreTechniquePicker
+        techniqueId={null}
+        techniqueName={null}
+        onChange={vi.fn()}
+      />,
+    );
+    expect(screen.getByRole('combobox')).toBeInTheDocument();
+    expect(screen.getByPlaceholderText(/Search by ID or name/i)).toBeInTheDocument();
+  });
+
+  it('shows preselected value when techniqueId and name provided', () => {
+    vi.useRealTimers();
+    renderWithProviders(
+      <MitreTechniquePicker
+        techniqueId="T1059"
+        techniqueName="Command and Scripting Interpreter"
+        onChange={vi.fn()}
+      />,
+    );
+    const input = screen.getByRole('combobox') as HTMLInputElement;
+    expect(input.value).toContain('T1059');
+    expect(input.value).toContain('Command and Scripting Interpreter');
+  });
+
+  it('is disabled when disabled prop is true', () => {
+    vi.useRealTimers();
+    renderWithProviders(
+      <MitreTechniquePicker
+        techniqueId={null}
+        techniqueName={null}
+        onChange={vi.fn()}
+        disabled
+      />,
+    );
+    expect(screen.getByRole('combobox')).toBeDisabled();
+  });
+
+  it('debounces search: no request fires before 200ms', async () => {
+    mock.onGet('/mitre/techniques').reply(200, TECHNIQUES);
+    const user = userEvent.setup({ advanceTimers: (ms) => vi.advanceTimersByTime(ms) });
+
+    renderWithProviders(
+      <MitreTechniquePicker
+        techniqueId={null}
+        techniqueName={null}
+        onChange={vi.fn()}
+      />,
+    );
+
+    const input = screen.getByRole('combobox');
+    await user.click(input);
+    await user.type(input, 'T');
+
+    // Before debounce fires
+    expect(mock.history.get.length).toBe(0);
+
+    // Advance past debounce
+    act(() => { vi.advanceTimersByTime(300); });
+
+    await waitFor(() => expect(mock.history.get.length).toBeGreaterThan(0));
+  });
+
+  it('displays results in dropdown after debounce', async () => {
+    mock.onGet('/mitre/techniques').reply(200, TECHNIQUES);
+    const user = userEvent.setup({ advanceTimers: (ms) => vi.advanceTimersByTime(ms) });
+
+    renderWithProviders(
+      <MitreTechniquePicker
+        techniqueId={null}
+        techniqueName={null}
+        onChange={vi.fn()}
+      />,
+    );
+
+    const input = screen.getByRole('combobox');
+    await user.click(input);
+    await user.type(input, 'T1059');
+    act(() => { vi.advanceTimersByTime(300); });
+
+    await waitFor(() => {
+      expect(screen.getByRole('listbox')).toBeInTheDocument();
+    });
+
+    const options = screen.getAllByRole('option');
+    expect(options.length).toBeGreaterThan(0);
+    expect(options[0].textContent).toContain('T1059');
+  });
+
+  it('selecting a result calls onChange with id and name', async () => {
+    mock.onGet('/mitre/techniques').reply(200, TECHNIQUES);
+    const onChange = vi.fn();
+    const user = userEvent.setup({ advanceTimers: (ms) => vi.advanceTimersByTime(ms) });
+
+    renderWithProviders(
+      <MitreTechniquePicker
+        techniqueId={null}
+        techniqueName={null}
+        onChange={onChange}
+      />,
+    );
+
+    const input = screen.getByRole('combobox');
+    await user.click(input);
+    await user.type(input, 'T1059');
+    act(() => { vi.advanceTimersByTime(300); });
+
+    await waitFor(() => screen.getByRole('listbox'));
+
+    const options = screen.getAllByRole('option');
+    await user.click(options[0]);
+
+    expect(onChange).toHaveBeenCalledWith('T1059', 'Command and Scripting Interpreter');
+  });
+
+  it('populates input display string after selection', async () => {
+    mock.onGet('/mitre/techniques').reply(200, TECHNIQUES);
+    const user = userEvent.setup({ advanceTimers: (ms) => vi.advanceTimersByTime(ms) });
+
+    renderWithProviders(
+      <MitreTechniquePicker
+        techniqueId={null}
+        techniqueName={null}
+        onChange={vi.fn()}
+      />,
+    );
+
+    const input = screen.getByRole('combobox') as HTMLInputElement;
+    await user.click(input);
+    await user.type(input, 'T1059');
+    act(() => { vi.advanceTimersByTime(300); });
+
+    await waitFor(() => screen.getByRole('listbox'));
+
+    const options = screen.getAllByRole('option');
+    await user.click(options[0]);
+
+    expect(input.value).toContain('T1059');
+    expect(input.value).toContain('Command and Scripting Interpreter');
+  });
+
+  it('keyboard ArrowDown + Enter selects item', async () => {
+    mock.onGet('/mitre/techniques').reply(200, TECHNIQUES);
+    const onChange = vi.fn();
+    const user = userEvent.setup({ advanceTimers: (ms) => vi.advanceTimersByTime(ms) });
+
+    renderWithProviders(
+      <MitreTechniquePicker
+        techniqueId={null}
+        techniqueName={null}
+        onChange={onChange}
+      />,
+    );
+
+    const input = screen.getByRole('combobox');
+    await user.click(input);
+    await user.type(input, 'T105');
+    act(() => { vi.advanceTimersByTime(300); });
+
+    await waitFor(() => screen.getByRole('listbox'));
+
+    await user.keyboard('{ArrowDown}');
+    await user.keyboard('{Enter}');
+
+    expect(onChange).toHaveBeenCalled();
+  });
+
+  it('Escape closes the dropdown', async () => {
+    mock.onGet('/mitre/techniques').reply(200, TECHNIQUES);
+    const user = userEvent.setup({ advanceTimers: (ms) => vi.advanceTimersByTime(ms) });
+
+    renderWithProviders(
+      <MitreTechniquePicker
+        techniqueId={null}
+        techniqueName={null}
+        onChange={vi.fn()}
+      />,
+    );
+
+    const input = screen.getByRole('combobox');
+    await user.click(input);
+    await user.type(input, 'T1059');
+    act(() => { vi.advanceTimersByTime(300); });
+
+    await waitFor(() => screen.getByRole('listbox'));
+
+    await user.keyboard('{Escape}');
+
+    expect(screen.queryByRole('listbox')).toBeNull();
+  });
+
+  it('typing while techniqueId is null does not reset inputValue between keystrokes', async () => {
+    mock.onGet('/mitre/techniques').reply(200, []);
+    const user = userEvent.setup({ advanceTimers: (ms) => vi.advanceTimersByTime(ms) });
+
+    renderWithProviders(
+      <MitreTechniquePicker
+        techniqueId={null}
+        techniqueName={null}
+        onChange={vi.fn()}
+      />,
+    );
+
+    const input = screen.getByRole('combobox') as HTMLInputElement;
+    await user.click(input);
+    await user.type(input, 'T10');
+
+    // Input must retain the full typed value — no mid-stroke reset
+    expect(input.value).toBe('T10');
+  });
+
+  it('shows inline error when API returns 503', async () => {
+    mock.onGet('/mitre/techniques').reply(503, { error: 'mitre bundle not loaded' });
+    const user = userEvent.setup({ advanceTimers: (ms) => vi.advanceTimersByTime(ms) });
+
+    renderWithProviders(
+      <MitreTechniquePicker
+        techniqueId={null}
+        techniqueName={null}
+        onChange={vi.fn()}
+      />,
+    );
+
+    const input = screen.getByRole('combobox');
+    await user.click(input);
+    await user.type(input, 'T1059');
+    act(() => { vi.advanceTimersByTime(300); });
+
+    await waitFor(() => {
+      expect(screen.getByRole('alert')).toBeInTheDocument();
+    });
+  });
+});

frontend/tests/SimulationFormPage.test.tsx

@@ -0,0 +1,275 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+import { screen, waitFor } from '@testing-library/react';
+import { Route, Routes } from 'react-router-dom';
+import MockAdapter from 'axios-mock-adapter';
+import { apiClient } from '@/api/client';
+import { SimulationFormPage } from '@/pages/SimulationFormPage';
+import { renderWithProviders } from './utils';
+import type { Simulation } from '@/api/types';
+
+const BASE_SIM: Simulation = {
+  id: 7,
+  engagement_id: 42,
+  name: 'Recon test',
+  mitre_technique_id: null,
+  mitre_technique_name: null,
+  description: 'Some description',
+  commands: 'whoami\nipconfig',
+  prerequisites: null,
+  executed_at: null,
+  execution_result: null,
+  log_source: null,
+  logs: null,
+  soc_comment: null,
+  incident_number: null,
+  status: 'pending',
+  created_at: '2026-05-26T08:00:00',
+  updated_at: null,
+  created_by: { id: 1, username: 'alice' },
+};
+
+let mockRole: 'admin' | 'redteam' | 'soc' = 'redteam';
+
+vi.mock('@/hooks/useAuth', () => ({
+  useAuth: () => ({
+    user: { id: 1, username: 'alice', role: mockRole, created_at: '2026-01-01' },
+    status: 'authenticated',
+    login: vi.fn(),
+    logout: vi.fn(),
+    isAdmin: mockRole === 'admin',
+    isRedteam: mockRole === 'redteam',
+    isSoc: mockRole === 'soc',
+    canEditEngagements: mockRole === 'admin' || mockRole === 'redteam',
+  }),
+}));
+
+// Wrap the page in a Route so useParams gets eid and sid
+function EditPage() {
+  return (
+    <Routes>
+      <Route path="/engagements/:eid/simulations/:sid/edit" element={<SimulationFormPage />} />
+    </Routes>
+  );
+}
+
+function NewPage() {
+  return (
+    <Routes>
+      <Route path="/engagements/:eid/simulations/new" element={<SimulationFormPage />} />
+    </Routes>
+  );
+}
+
+describe('SimulationFormPage — redteam mode (edit existing)', () => {
+  let mock: MockAdapter;
+
+  beforeEach(() => {
+    mockRole = 'redteam';
+    mock = new MockAdapter(apiClient);
+    mock.onGet('/simulations/7').reply(200, BASE_SIM);
+  });
+
+  afterEach(() => {
+    mock.restore();
+  });
+
+  it('renders loading state initially', () => {
+    mock.onGet('/simulations/7').reply(() => new Promise(() => {}));
+    renderWithProviders(<EditPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/7/edit'] },
+    });
+    expect(screen.getByTestId('loading-state')).toBeInTheDocument();
+  });
+
+  it('all Red Team fields are enabled for redteam', async () => {
+    renderWithProviders(<EditPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/7/edit'] },
+    });
+
+    await waitFor(() => {
+      expect(screen.getByLabelText(/^Name/i)).not.toBeDisabled();
+    });
+
+    expect(screen.getByLabelText(/Description/i)).not.toBeDisabled();
+    expect(screen.getByLabelText(/Commands/i)).not.toBeDisabled();
+    expect(screen.getByLabelText(/Executed at/i)).not.toBeDisabled();
+  });
+
+  it('shows "Marquer en revue" button when status is pending', async () => {
+    renderWithProviders(<EditPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/7/edit'] },
+    });
+
+    await waitFor(() => {
+      expect(screen.getByRole('button', { name: /Marquer en revue/i })).toBeInTheDocument();
+    });
+  });
+
+  it('does not show "Clôturer" when status is pending', async () => {
+    renderWithProviders(<EditPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/7/edit'] },
+    });
+
+    await waitFor(() => screen.getByRole('button', { name: /Marquer en revue/i }));
+    expect(screen.queryByRole('button', { name: /Clôturer/i })).toBeNull();
+  });
+
+  it('shows "Marquer en revue" for in_progress status', async () => {
+    mock.onGet('/simulations/7').reply(200, { ...BASE_SIM, status: 'in_progress' });
+    renderWithProviders(<EditPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/7/edit'] },
+    });
+
+    await waitFor(() => {
+      expect(screen.getByRole('button', { name: /Marquer en revue/i })).toBeInTheDocument();
+    });
+  });
+
+  it('shows "Clôturer" button when status is review_required', async () => {
+    mock.onGet('/simulations/7').reply(200, { ...BASE_SIM, status: 'review_required' });
+    renderWithProviders(<EditPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/7/edit'] },
+    });
+
+    await waitFor(() => {
+      expect(screen.getByRole('button', { name: /Clôturer/i })).toBeInTheDocument();
+    });
+  });
+
+  it('shows "Supprimer" button for redteam', async () => {
+    renderWithProviders(<EditPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/7/edit'] },
+    });
+
+    await waitFor(() => {
+      expect(screen.getByRole('button', { name: /Supprimer/i })).toBeInTheDocument();
+    });
+  });
+});
+
+describe('SimulationFormPage — SOC role + pending (blocked)', () => {
+  let mock: MockAdapter;
+
+  beforeEach(() => {
+    mockRole = 'soc';
+    mock = new MockAdapter(apiClient);
+    mock.onGet('/simulations/7').reply(200, BASE_SIM);
+  });
+
+  afterEach(() => {
+    mock.restore();
+  });
+
+  it('shows the SOC blocked banner', async () => {
+    renderWithProviders(<EditPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/7/edit'] },
+    });
+
+    await waitFor(() => {
+      expect(screen.getByTestId('soc-blocked-banner')).toBeInTheDocument();
+    });
+  });
+
+  it('SOC inputs are disabled when status is pending', async () => {
+    renderWithProviders(<EditPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/7/edit'] },
+    });
+
+    await waitFor(() => {
+      expect(screen.getByLabelText(/Log source/i)).toBeDisabled();
+    });
+
+    expect(screen.getByLabelText(/Incident number/i)).toBeDisabled();
+  });
+
+  it('Red Team inputs are disabled for SOC', async () => {
+    renderWithProviders(<EditPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/7/edit'] },
+    });
+
+    await waitFor(() => {
+      expect(screen.getByLabelText(/^Name/i)).toBeDisabled();
+    });
+
+    expect(screen.getByLabelText(/Description/i)).toBeDisabled();
+  });
+});
+
+describe('SimulationFormPage — SOC role + review_required (can edit SOC fields)', () => {
+  let mock: MockAdapter;
+
+  beforeEach(() => {
+    mockRole = 'soc';
+    mock = new MockAdapter(apiClient);
+    mock.onGet('/simulations/7').reply(200, { ...BASE_SIM, status: 'review_required' });
+  });
+
+  afterEach(() => {
+    mock.restore();
+  });
+
+  it('SOC inputs are enabled when status is review_required', async () => {
+    renderWithProviders(<EditPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/7/edit'] },
+    });
+
+    await waitFor(() => {
+      expect(screen.getByLabelText(/Log source/i)).not.toBeDisabled();
+    });
+
+    expect(screen.getByLabelText(/Incident number/i)).not.toBeDisabled();
+  });
+
+  it('Red Team inputs remain disabled for SOC even when review_required', async () => {
+    renderWithProviders(<EditPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/7/edit'] },
+    });
+
+    await waitFor(() => {
+      expect(screen.getByLabelText(/^Name/i)).toBeDisabled();
+    });
+  });
+
+  it('does not show the blocked banner when status is review_required', async () => {
+    renderWithProviders(<EditPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/7/edit'] },
+    });
+
+    await waitFor(() => {
+      expect(screen.getByLabelText(/Log source/i)).not.toBeDisabled();
+    });
+
+    expect(screen.queryByTestId('soc-blocked-banner')).toBeNull();
+  });
+
+  it('shows "Clôturer" for SOC when review_required', async () => {
+    renderWithProviders(<EditPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/7/edit'] },
+    });
+
+    await waitFor(() => {
+      expect(screen.getByRole('button', { name: /Clôturer/i })).toBeInTheDocument();
+    });
+  });
+});
+
+describe('SimulationFormPage — new simulation', () => {
+  let mock: MockAdapter;
+
+  beforeEach(() => {
+    mockRole = 'redteam';
+    mock = new MockAdapter(apiClient);
+  });
+
+  afterEach(() => {
+    mock.restore();
+  });
+
+  it('renders the new simulation form with name field', () => {
+    renderWithProviders(<NewPage />, {
+      routerProps: { initialEntries: ['/engagements/42/simulations/new'] },
+    });
+    expect(screen.getByLabelText(/^Name/i)).toBeInTheDocument();
+    expect(screen.getByRole('button', { name: /Create simulation/i })).toBeInTheDocument();
+  });
+});

frontend/tests/SimulationList.test.tsx

@@ -0,0 +1,157 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+import { screen, waitFor, fireEvent } from '@testing-library/react';
+import MockAdapter from 'axios-mock-adapter';
+import { apiClient } from '@/api/client';
+import { SimulationList } from '@/components/SimulationList';
+import { renderWithProviders } from './utils';
+import type { Simulation } from '@/api/types';
+
+const SIMULATIONS: Simulation[] = [
+  {
+    id: 1,
+    engagement_id: 42,
+    name: 'Lateral movement test',
+    mitre_technique_id: 'T1021',
+    mitre_technique_name: 'Remote Services',
+    description: null,
+    commands: null,
+    prerequisites: null,
+    executed_at: '2026-06-01T10:00:00',
+    execution_result: null,
+    log_source: null,
+    logs: null,
+    soc_comment: null,
+    incident_number: null,
+    status: 'in_progress',
+    created_at: '2026-05-26T08:00:00',
+    updated_at: null,
+    created_by: { id: 1, username: 'alice' },
+  },
+];
+
+let mockCanEdit = true;
+
+vi.mock('@/hooks/useAuth', () => ({
+  useAuth: () => ({
+    user: { id: 1, username: 'alice', role: mockCanEdit ? 'admin' : 'soc', created_at: '2026-01-01' },
+    status: 'authenticated',
+    login: vi.fn(),
+    logout: vi.fn(),
+    isAdmin: mockCanEdit,
+    isRedteam: false,
+    isSoc: !mockCanEdit,
+    canEditEngagements: mockCanEdit,
+  }),
+}));
+
+describe('SimulationList — admin/redteam', () => {
+  let mock: MockAdapter;
+
+  beforeEach(() => {
+    mockCanEdit = true;
+    mock = new MockAdapter(apiClient);
+  });
+
+  afterEach(() => {
+    mock.restore();
+  });
+
+  it('shows loading state initially', () => {
+    mock.onGet('/engagements/42/simulations').reply(() => new Promise(() => {}));
+    renderWithProviders(<SimulationList engagementId={42} />);
+    expect(screen.getByTestId('loading-state')).toBeInTheDocument();
+  });
+
+  it('shows error state when request fails', async () => {
+    mock.onGet('/engagements/42/simulations').reply(500, { error: 'Server error' });
+    renderWithProviders(<SimulationList engagementId={42} />);
+    await waitFor(() => {
+      expect(screen.getByTestId('error-state')).toBeInTheDocument();
+    });
+  });
+
+  it('shows empty state when no simulations', async () => {
+    mock.onGet('/engagements/42/simulations').reply(200, []);
+    renderWithProviders(<SimulationList engagementId={42} />);
+    await waitFor(() => {
+      expect(screen.getByTestId('empty-state')).toBeInTheDocument();
+    });
+  });
+
+  it('shows "Nouvelle simulation" button for admin/redteam in empty state', async () => {
+    mock.onGet('/engagements/42/simulations').reply(200, []);
+    renderWithProviders(<SimulationList engagementId={42} />);
+    await waitFor(() => {
+      expect(screen.getByTestId('new-simulation-btn')).toBeInTheDocument();
+    });
+  });
+
+  it('renders the simulation list with correct data', async () => {
+    mock.onGet('/engagements/42/simulations').reply(200, SIMULATIONS);
+    renderWithProviders(<SimulationList engagementId={42} />);
+    await waitFor(() => {
+      expect(screen.getByText('Lateral movement test')).toBeInTheDocument();
+    });
+    expect(screen.getByText('T1021')).toBeInTheDocument();
+    expect(screen.getByTestId('simulation-status-badge')).toHaveAttribute('data-status', 'in_progress');
+  });
+
+  it('shows "Nouvelle simulation" button in header when simulations exist', async () => {
+    mock.onGet('/engagements/42/simulations').reply(200, SIMULATIONS);
+    renderWithProviders(<SimulationList engagementId={42} />);
+    await waitFor(() => {
+      expect(screen.getByText('Lateral movement test')).toBeInTheDocument();
+    });
+    expect(screen.getByTestId('new-simulation-btn')).toBeInTheDocument();
+  });
+
+  it('clicking a row uses SPA navigation and does not trigger window.location change', async () => {
+    mock.onGet('/engagements/42/simulations').reply(200, SIMULATIONS);
+    const originalHref = window.location.href;
+
+    renderWithProviders(<SimulationList engagementId={42} />, {
+      routerProps: { initialEntries: ['/engagements/42'] },
+    });
+
+    await waitFor(() => {
+      expect(screen.getByText('Lateral movement test')).toBeInTheDocument();
+    });
+
+    const row = screen.getByText('Lateral movement test').closest('tr') as HTMLElement;
+    fireEvent.click(row);
+
+    // window.location.href must be unchanged (no full-page reload)
+    expect(window.location.href).toBe(originalHref);
+  });
+});
+
+describe('SimulationList — SOC role (no edit button)', () => {
+  let mock: MockAdapter;
+
+  beforeEach(() => {
+    mockCanEdit = false;
+    mock = new MockAdapter(apiClient);
+  });
+
+  afterEach(() => {
+    mock.restore();
+  });
+
+  it('does not show "Nouvelle simulation" button for SOC in empty state', async () => {
+    mock.onGet('/engagements/42/simulations').reply(200, []);
+    renderWithProviders(<SimulationList engagementId={42} />);
+    await waitFor(() => {
+      expect(screen.getByTestId('empty-state')).toBeInTheDocument();
+    });
+    expect(screen.queryByTestId('new-simulation-btn')).toBeNull();
+  });
+
+  it('does not show "Nouvelle simulation" button for SOC when simulations exist', async () => {
+    mock.onGet('/engagements/42/simulations').reply(200, SIMULATIONS);
+    renderWithProviders(<SimulationList engagementId={42} />);
+    await waitFor(() => {
+      expect(screen.getByText('Lateral movement test')).toBeInTheDocument();
+    });
+    expect(screen.queryByTestId('new-simulation-btn')).toBeNull();
+  });
+});

frontend/tests/SimulationStatusBadge.test.tsx

@@ -0,0 +1,44 @@
+import { describe, expect, it } from 'vitest';
+import { render, screen } from '@testing-library/react';
+import { SimulationStatusBadge } from '@/components/SimulationStatusBadge';
+import type { SimulationStatus } from '@/api/types';
+
+const CASES: { status: SimulationStatus; label: string }[] = [
+  { status: 'pending', label: 'Pending' },
+  { status: 'in_progress', label: 'In progress' },
+  { status: 'review_required', label: 'Review required' },
+  { status: 'done', label: 'Done' },
+];
+
+describe('SimulationStatusBadge', () => {
+  it.each(CASES)('renders $status with correct label and data attr', ({ status, label }) => {
+    render(<SimulationStatusBadge status={status} />);
+    const badge = screen.getByTestId('simulation-status-badge');
+    expect(badge).toHaveAttribute('data-status', status);
+    expect(badge.textContent).toBe(label);
+  });
+
+  it('applies fog surface for pending', () => {
+    render(<SimulationStatusBadge status="pending" />);
+    const badge = screen.getByTestId('simulation-status-badge');
+    expect(badge.className).toContain('bg-fog');
+  });
+
+  it('applies primary-soft surface for in_progress', () => {
+    render(<SimulationStatusBadge status="in_progress" />);
+    const badge = screen.getByTestId('simulation-status-badge');
+    expect(badge.className).toContain('bg-primary-soft');
+  });
+
+  it('applies bloom-coral surface for review_required', () => {
+    render(<SimulationStatusBadge status="review_required" />);
+    const badge = screen.getByTestId('simulation-status-badge');
+    expect(badge.className).toContain('bg-bloom-coral');
+  });
+
+  it('applies storm-deep surface for done', () => {
+    render(<SimulationStatusBadge status="done" />);
+    const badge = screen.getByTestId('simulation-status-badge');
+    expect(badge.className).toContain('bg-storm-deep');
+  });
+});

tasks/lessons.md

@@ -4,4 +4,24 @@ Recurring mistakes and the rule we adopted so the same issue doesn't bite twice.
 
 ---
 
-_(empty — to be filled by the team-lead at the end of each sprint, with input from builders and reviewers)_
+## Sprint 2 (closed 2026-05-26)
+
+### Testing — Vitest module hoisting (frontend-builder)
+**Context** : `vi.mock(path, factory)` is hoisted to module scope before any other statement runs. A `mockAuth(role)` helper that captures `role` in a closure crashes at runtime with `"role is not defined"` because the factory executes before the closure is set up.
+**Lesson** : when a Vitest mock needs runtime-mutable state, declare the mutable in module scope (`let mockRole = 'redteam'`) and mutate it inside `beforeEach`. Closures over test-local variables don't survive the hoist.
+
+### Testing — `useParams()` in MemoryRouter (frontend-builder)
+**Context** : a page component that reads `useParams()` returns an empty object when rendered directly inside `<MemoryRouter>` — no params are extracted unless the component is mounted under a matching `<Route path="...">`.
+**Lesson** : page tests that depend on params must wrap the component in `<MemoryRouter><Routes><Route path="/foo/:id" element={<Page />} /></Routes></MemoryRouter>` and set `initialEntries={['/foo/42']}`.
+
+### Testing — jsdom missing browser APIs (frontend-builder)
+**Context** : jsdom doesn't implement `Element.scrollIntoView`. Calling it in a component (e.g., scrolling the active autocomplete option into view) throws inside Vitest unless guarded.
+**Lesson** : in components meant to run in both browser and jsdom, guard browser-only DOM APIs with optional chaining (`el?.scrollIntoView?.({ block: 'nearest' })`) or feature-detect before calling.
+
+### Process — Reuse idle team agents via SendMessage, not Agent (team-lead)
+**Context** : during post-review fixes, I re-spawned `backend-builder` and `frontend-builder` via `Agent({name: "..."})` even though the original instances were still alive (just idle). The system auto-suffixed `-2` and BOTH instances received the same brief, producing duplicate parallel commits on the branch. Frontend got two fix commits (`c9032a9` + `cf0e8a8`) where one would have sufficed; the second commit happened to layer cleanly on top, but only by luck.
+**Lesson** : to redispatch work to an existing team agent, use `SendMessage({to: "backend-builder", ...})`. `Agent({name: ...})` creates a new instance when the name is taken. The team config at `~/.claude/teams/<team>/config.json` is the source of truth for who's already present.
+
+### Workflow — Update e2e assertions when later sprints supersede placeholders (team-lead)
+**Context** : Sprint 1 AC-4.9 asserted the literal text "Simulations à venir au Sprint 2" on `EngagementDetailPage`. Sprint 2 correctly replaced that placeholder with `<SimulationList>`, breaking the assertion. The test-verifier initially classified this as "pre-existing failure".
+**Lesson** : whenever a later sprint replaces a placeholder asserted by an earlier sprint's e2e test, the earlier test must be refreshed in the same sprint (not deferred). A failing test that's "expected" is still a failing test — and it muddies the signal of the PR.

tasks/todo.md

@@ -1,315 +1,252 @@
-# Sprint 1 — Auth + CRUD Engagement
+# Sprint 2 — Simulations + MITRE ATT&CK
 
-**Branche** : `sprint/1-auth-engagements`
+**Branche** : `sprint/2-simulations`
-**Statut** : 🟢 PLAN APPROUVÉ (spec-reviewer 2026-05-26) — prêt pour dispatch backend-builder
+**Statut** : 🟢 SPRINT COMPLET — 32 acceptance tests sprint 2 verts, code-review traité (2 MAJOR + 2 MINOR + 2 NITs fixés), PR prête
-**Base** : `main`
+**Base** : `main` (sprint 1 mergé en `7fc79cc`)
-**Objectif** : poser l'infrastructure (Flask + SQLite + React + Docker + Makefile + tests) ET livrer une première feature de bout en bout testable sur l'UI — login + admin gère les comptes + tout utilisateur authentifié peut créer/lister/éditer/supprimer des engagements.
+**Objectif** : livrer les simulations (CRUD + workflow Pending→In progress→Review required→Done) à l'intérieur d'un engagement, avec autocomplete MITRE ATT&CK alimenté par un bundle STIX local. C'est le cœur métier — l'app remplace enfin le fichier Excel partagé redteam/SOC.
 
 ---
 
 ## 1. User stories
 
-### US-1 — En tant qu'admin, je bootstrap le premier compte admin
+### US-7 — En tant que redteam, je crée une simulation dans un engagement
-**Pourquoi** : sinon impossible d'utiliser l'application au premier démarrage.
+**Pourquoi** : c'est la feature centrale du sprint 2.
 
 **Critères d'acceptation**
-- [ ] AC-1.1 : la commande `make create-admin USER=alice PASS=p4ssw0rd` crée un user `alice` avec le rôle `admin` et le password hashé (argon2).
+- [ ] AC-7.1 : `POST /api/engagements/<eid>/simulations {name}` (admin|redteam) → 201 + simulation `{id, engagement_id, name, status: "pending", ...}`. `name` requis, non vide.
-- [ ] AC-1.2 : la commande échoue proprement (exit ≠ 0, message clair) si le username existe déjà.
+- [ ] AC-7.2 : autres rôles (soc) → 403.
-- [ ] AC-1.3 : la commande échoue si le password fait moins de 8 caractères.
+- [ ] AC-7.3 : engagement inexistant → 404. Engagement existant mais aucune simulation → liste vide.
-- [ ] AC-1.4 : la commande s'exécute via `docker exec mimic flask create-admin …` (le Makefile encapsule cet appel).
+- [ ] AC-7.4 : `GET /api/engagements/<eid>/simulations` (auth) → liste des simulations de l'engagement, ordonnée `created_at desc`.
+- [ ] AC-7.5 : page `/engagements/:eid` (EngagementDetailPage) remplace le placeholder Sprint 2 par une section "Simulations" : liste (colonnes: name, MITRE id, status badge, executed_at) + bouton "Nouvelle simulation" pour admin/redteam.
+- [ ] AC-7.6 : depuis cette liste, click sur une ligne → ouvre `/engagements/:eid/simulations/:sid/edit` (page d'édition role-aware, unique URL pour view+edit).
 
-### US-2 — En tant qu'utilisateur, je me connecte et me déconnecte
+### US-8 — En tant que redteam, je renseigne les détails techniques d'une simulation
-**Pourquoi** : porte d'entrée de l'application.
+**Pourquoi** : c'est la trace de ce que la redteam a exécuté.
 
 **Critères d'acceptation**
-- [ ] AC-2.1 : `POST /api/auth/login {username, password}` retourne `{access_token, user: {id, username, role}}` (200) si credentials valides.
+- [ ] AC-8.1 : `PATCH /api/simulations/<sid>` (admin|redteam) accepte les champs redteam : `name`, `mitre_technique_id`, `mitre_technique_name`, `description`, `commands` (texte multiligne, une commande par ligne), `prerequisites`, `executed_at` (ISO datetime), `execution_result`. Champs partiels OK.
-- [ ] AC-2.2 : 401 si credentials invalides, avec un message générique ("Invalid credentials") — pas de fuite username vs password.
+- [ ] AC-8.2 : règle d'auto-transition pending → in_progress. Trigger PRÉCIS : `PATCH /api/simulations/<sid>` par admin|redteam où **le payload JSON contient au moins une clé parmi les champs redteam** (`name`, `mitre_technique_id`, `mitre_technique_name`, `description`, `commands`, `prerequisites`, `executed_at`, `execution_result`) **dont la valeur n'est ni `null` ni une string vide ni une liste vide**, ET status courant == `pending`. La comparaison se fait sur le payload entrant — pas sur l'état final de la simulation. Un PATCH qui ne ré-envoie qu'un champ inchangé (ex: même `name`) déclenche quand même la transition, car c'est une action explicite "la redteam saisit". L'auto-transition ne se déclenche jamais sur un PATCH `soc`.
-- [ ] AC-2.3 : `POST /api/auth/logout` invalide le token côté client (UI supprime le token). Côté serveur : optionnel V1, on accepte un logout client-side.
+- [ ] AC-8.3 : `commands` est stocké en colonne `text` (chaîne multiligne, une commande par ligne). Sérialisation API = texte brut tel que stocké. Le frontend affiche dans un `<textarea>`.
-- [ ] AC-2.4 : page `/login` affiche le formulaire ; soumission OK → redirection `/engagements`. Soumission KO → message d'erreur visible.
+- [ ] AC-8.4 : `executed_at` valide ISO 8601 ou null. Si invalide → 400 `{error: "invalid executed_at"}`.
-- [ ] AC-2.5 : navigation vers `/engagements` sans token → redirection `/login`.
+- [ ] AC-8.5 : page `/engagements/:eid/simulations/:sid` affiche un formulaire avec deux sections visibles ("Red Team" et "SOC"). Pour admin/redteam, les deux sections sont éditables. Validation client : `name` non vide.
-- [ ] AC-2.6 : si une requête API retourne 401 (token expiré ou invalide), l'intercepteur axios purge le token et redirige vers `/login` avec un toast "Session expirée".
+- [ ] AC-8.6 : autocomplete MITRE dans le champ "Technique" — voir US-10.
 
-### US-3 — En tant qu'admin, je gère les comptes utilisateurs
+### US-9 — En tant qu'analyste SOC, je remplis ma partie de la simulation
-**Pourquoi** : créer redteam/soc accounts depuis l'UI.
+**Pourquoi** : le SOC documente la détection sans toucher au scope redteam.
 
 **Critères d'acceptation**
-- [ ] AC-3.1 : `GET /api/users` (admin only) → liste `[{id, username, role, created_at}]`.
+- [ ] AC-9.1 : `PATCH /api/simulations/<sid>` envoyé par un user `soc` n'accepte QUE les champs SOC : `log_source`, `logs`, `soc_comment`, `incident_number`. Si la requête contient un champ redteam → 403 `{error: "soc cannot edit redteam fields"}`.
-- [ ] AC-3.2 : `POST /api/users {username, password, role}` (admin only) → 201 + objet user (sans password_hash). 400 si username existe ou password < 8 chars.
+- [ ] AC-9.2 : un user `soc` ne peut PATCH une simulation que si son status est `review_required` ou `done`. Avant ça → 403 `{error: "simulation not ready for SOC review"}`.
-- [ ] AC-3.3 : `PATCH /api/users/<id> {role?, password?}` (admin only) → 200, modifie role et/ou password.
+- [ ] AC-9.3 : page `/engagements/:eid/simulations/:sid` pour un user `soc` : la section "Red Team" est rendue en read-only (champs grisés) ; la section "SOC" est éditable.
-- [ ] AC-3.4 : `DELETE /api/users/<id>` (admin only) → 204. Refuse de supprimer le dernier admin (409).
+- [ ] AC-9.4 : si la simulation est en `pending` ou `in_progress` et qu'un soc visite la page, un bandeau "Simulation pas encore en revue — la redteam doit la marquer comme 'Review required' avant que vous puissiez intervenir" s'affiche, les champs SOC sont désactivés.
-- [ ] AC-3.5 : tout autre rôle (redteam/soc) appelant ces endpoints reçoit 403.
-- [ ] AC-3.6 : page `/admin/users` (admin only) liste les users avec actions "Créer", "Modifier rôle", "Reset password", "Supprimer".
-- [ ] AC-3.7 : un user redteam/soc qui visite `/admin/users` est redirigé vers `/engagements` avec un toast "Accès refusé".
 
-### US-4 — En tant qu'utilisateur authentifié, je gère les engagements
+### US-10 — En tant que redteam, j'autocomplète une technique MITRE ATT&CK
-**Pourquoi** : la feature métier centrale du Sprint 1.
+**Pourquoi** : éviter de taper l'id à la main, garantir la cohérence.
 
 **Critères d'acceptation**
-- [ ] AC-4.1 : `GET /api/engagements` (auth) → `[{id, name, description, start_date, end_date, status, created_at, created_by}]`.
+- [ ] AC-10.1 : `make update-mitre` télécharge le bundle STIX 2.1 Enterprise depuis `https://raw.githubusercontent.com/mitre/cti/master/enterprise-attack/enterprise-attack.json` et l'écrit dans `backend/data/mitre/enterprise-attack.json`. Le bundle est COMMITTÉ dans le repo (`make build` reste autosuffisant). `make update-mitre` reste l'unique méthode de rafraîchissement et le diff résultant est committé manuellement.
-- [ ] AC-4.2 : `POST /api/engagements {name, description?, start_date, end_date?, status?}` (auth) → 201. Valide : `name` non vide, `start_date` parseable, `end_date >= start_date` si fournie, `status ∈ {planned, active, closed}` (défaut `planned`).
+- [ ] AC-10.2 : `GET /api/mitre/techniques?q=<query>` (auth, tous rôles) → liste max 20 résultats `[{id, name, tactics: ["initial-access", ...]}]`. Recherche full-text sur `id` (ex: "T1059") OU `name` (ex: "Command and Scripting Interpreter"), case-insensitive, ordonnée : match exact id > match préfixe id > match nom.
-- [ ] AC-4.3 : `GET /api/engagements/<id>` (auth) → 200 + objet, 404 si inconnu.
+- [ ] AC-10.3 : si le bundle local est absent → endpoint répond 503 `{error: "mitre bundle not loaded"}`. Le team-lead documente `make update-mitre` dans le README.
-- [ ] AC-4.4 : `PATCH /api/engagements/<id>` (auth, redteam ou admin) → 200, modifie les champs fournis.
+- [ ] AC-10.4 : sous-techniques (id format `T1059.001`) incluses dans l'index.
-- [ ] AC-4.5 : `DELETE /api/engagements/<id>` (admin ou redteam) → 204.
+- [ ] AC-10.5 : composant frontend `MitreTechniquePicker` : input + dropdown des matches (debounce 200ms, navigation clavier ↑↓ + Enter, Escape ferme le dropdown), affichage `T1059 — Command and Scripting Interpreter (initial-access)`. La sélection d'une suggestion remplit `mitre_technique_id` ET `mitre_technique_name` du form. Pas de fallback free-text : si l'utilisateur tape sans sélectionner, le champ technique reste vide en sortie de form (id et name `null`).
-- [ ] AC-4.6 : un user `soc` peut lire (GET) mais pas créer/modifier/supprimer (403).
-- [ ] AC-4.7 : page `/engagements` liste les engagements avec colonnes (name, status badge, dates, created_by). Boutons "Nouveau", "Voir", "Éditer", "Supprimer" selon rôle.
-- [ ] AC-4.8 : page `/engagements/new` et `/engagements/<id>/edit` (formulaire avec validation côté client + erreurs API affichées).
-- [ ] AC-4.9 : page `/engagements/<id>` (détail), placeholder "Simulations à venir au Sprint 2".
 
-### US-5 — En tant qu'utilisateur, l'UI respecte DESIGN.md
+### US-11 — En tant qu'utilisateur, je transitionne le workflow d'une simulation
-**Pourquoi** : non négociable selon SPEC.md.
+**Pourquoi** : la coordination redteam ↔ soc passe par le statut.
 
 **Critères d'acceptation**
-- [ ] AC-5.1 : la palette, typographie, espacements, composants (boutons, inputs, badges) suivent strictement `DESIGN.md`.
+- [ ] AC-11.1 : `POST /api/simulations/<sid>/transition {to: "review_required"}` → 200, requiert status courant ∈ {`pending`, `in_progress`} et role ∈ {admin, redteam}. Refuse les autres transitions → 409 `{error: "invalid transition"}`.
-- [ ] AC-5.2 : layout responsive desktop-first (≥ 1024px), pas de breakage visible jusqu'à 1280×720 minimum.
+- [ ] AC-11.2 : `POST /api/simulations/<sid>/transition {to: "done"}` → 200, requiert status courant == `review_required` et role ∈ {admin, redteam, soc}. Autres transitions → 409.
-- [ ] AC-5.3 : états loading / error / empty implémentés pour la liste d'engagements et la liste d'users.
+- [ ] AC-11.3 : aucune transition arrière (ex: done → pending) n'est permise. Pas de transition `→ pending` ni `→ in_progress` via cet endpoint (le passage à `in_progress` est strictement automatique cf AC-8.2).
-
+- [ ] AC-11.4 : sur la page d'édition simulation, deux boutons contextuels :
-### US-6 — Le livrable se déploie via Docker + Makefile
+  - Pour admin/redteam, status ∈ {pending, in_progress} : bouton "Marquer en revue".
-**Pourquoi** : exigence SPEC.md.
+  - Pour admin/redteam/soc, status == review_required : bouton "Clôturer".
+  - Sinon : boutons cachés.
+- [ ] AC-11.5 : après transition réussie, la query simulation et la liste sont invalidées (TanStack Query), le badge se met à jour.
 
+### US-12 — En tant qu'admin ou redteam, je supprime une simulation
 **Critères d'acceptation**
-- [ ] AC-6.1 : `make build` produit l'image docker `mimic:latest` (Dockerfile multistage : Node build → Python runtime).
+- [ ] AC-12.1 : `DELETE /api/simulations/<sid>` (admin|redteam) → 204.
-- [ ] AC-6.2 : `make start` lance le container, l'app est accessible sur `http://localhost:5000` (front + API).
+- [ ] AC-12.2 : `soc` → 403.
-- [ ] AC-6.3 : `make stop`, `make restart`, `make logs` fonctionnent.
+- [ ] AC-12.3 : suppression d'engagement (cascade) supprime toutes ses simulations.
-- [ ] AC-6.4 : SQLite persisté via volume nommé `mimic-data` (la DB survit à `make restart`).
+- [ ] AC-12.4 : bouton "Supprimer" sur la page d'édition (admin/redteam uniquement), avec confirmation modal.
-- [ ] AC-6.5 : `make test-backend`, `make test-frontend`, `make test-e2e` exécutent les suites respectives.
 
 ---
 
 ## 2. Brief technique — Backend Builder
 
-**Scope strict** : `backend/`, `Dockerfile`, `Makefile` (en collab avec ce sprint uniquement).
+**Scope strict** : `backend/`, `docker/`, `Makefile` (target `update-mitre`).
 
 ### Livrables
-1. **Structure** :
-   ```
-   backend/
-     __init__.py              # ⚠️ requis pour que `backend.app:create_app` soit importable depuis /app dans le Dockerfile
-     app/
-       __init__.py            # create_app() factory
-       config.py              # DevConfig / ProdConfig (SECRET_KEY, JWT_SECRET, SQLALCHEMY_DATABASE_URI)
-       extensions.py          # db = SQLAlchemy(), migrate = Migrate()
-       cli.py                 # @app.cli.command("create-admin")
-       models/
-         __init__.py
-         user.py              # User(id, username, password_hash, role, created_at)
-         engagement.py        # Engagement(id, name, description, start_date, end_date, status, created_at, created_by)
-       auth/
-         __init__.py
-         jwt.py               # encode_token / decode_token
-         hashing.py           # argon2 hash & verify
-         decorators.py        # @login_required, @role_required("admin")
-       api/
-         __init__.py
-         auth.py              # /login, /logout, /me
-         users.py             # CRUD users (admin)
-         engagements.py       # CRUD engagements
-       serializers.py         # to_dict() helpers — engagement renvoie created_by={id, username}, jamais l'objet User brut
-       errors.py              # uniform JSON error handler
-     migrations/              # alembic init + 0001 initial schema
-     tests/
-       conftest.py            # app fixture, db fixture, auth helpers
-       test_auth.py           # login OK + 401 invalid + 401 token expiré
-       test_users.py          # CRUD admin only, 403 redteam/soc, last-admin protection (AC-3.4)
-       test_engagements.py    # CRUD redteam/admin, 403 soc en write, serializer created_by
-       test_cli_create_admin.py  # success + duplicate username (AC-1.2) + password < 8 chars (AC-1.3)
-     pyproject.toml
-     requirements.txt         # flask, flask-sqlalchemy, flask-migrate, pyjwt, argon2-cffi, ruff, mypy, pytest
-   ```
 
-2. **Endpoints** : voir critères AC-2 / AC-3 / AC-4.
+**Modèle `Simulation`** (`backend/app/models/simulation.py`)
-3. **Modèles** : voir SPEC.md § Modèle de données.
+| Champ | Type | Notes |
-4. **Config** :
+|---|---|---|
-   - `SQLALCHEMY_DATABASE_URI = f"sqlite:///{os.environ.get('MIMIC_DB_PATH', '/data/mimic.sqlite')}"` — l'env var `MIMIC_DB_PATH` du Dockerfile surcharge le chemin si présent (utile pour tests ou changement de mount).
+| id | int PK | |
-   - `JWT_SECRET` lu depuis env var `MIMIC_JWT_SECRET`, requis (raise si absent en Prod).
+| engagement_id | int FK Engagement, CASCADE | requis |
-   - `JWT_EXP_MINUTES = 60`.
+| name | str, NOT NULL | redteam-side |
-5. **CLI** : `flask create-admin <user> <pass>` (avec validations AC-1.2/1.3).
+| mitre_technique_id | str, nullable | ex "T1059" / "T1059.001" |
-6. **Serializer engagement** : la réponse JSON expose `created_by` sous forme `{"id": <int>, "username": <str>}` — pas l'objet User complet, pas seulement l'id.
+| mitre_technique_name | str, nullable | snapshot pour résilience aux maj MITRE |
-7. **Tests** : couverture success / failure / edge sur chaque endpoint et CLI. Les AC-1.2 et AC-1.3 doivent avoir leur propre test dans `test_cli_create_admin.py`.
+| description | text, nullable | redteam-side |
-8. **Lint / typing** : ruff clean, mypy clean sur `app/`.
+| commands | text, nullable | chaîne multiligne, une commande par ligne — pas de JSON |
+| prerequisites | text, nullable | redteam-side |
+| executed_at | datetime, nullable | redteam-side |
+| execution_result | text, nullable | redteam-side |
+| log_source | text, nullable | soc-side |
+| logs | text, nullable | soc-side |
+| soc_comment | text, nullable | soc-side |
+| incident_number | str, nullable | soc-side |
+| status | enum(pending/in_progress/review_required/done), défaut `pending` | |
+| created_at | datetime | |
+| updated_at | datetime, nullable | mis à jour à chaque PATCH |
+| created_by_id | int FK User | |
+
+**Migration Alembic** `0002_add_simulations.py` — table `simulations` + FK indexes (`engagement_id`, `created_by_id`).
+
+**Endpoints** (nouveau blueprint `backend/app/api/simulations.py`)
+- `GET /api/engagements/<eid>/simulations` — list, auth, all roles
+- `POST /api/engagements/<eid>/simulations` — create, admin|redteam
+- `GET /api/simulations/<sid>` — get, auth
+- `PATCH /api/simulations/<sid>` — update avec RBAC field-level (voir AC-8/9)
+- `DELETE /api/simulations/<sid>` — admin|redteam
+- `POST /api/simulations/<sid>/transition` — state machine
+- `GET /api/mitre/techniques?q=` — autocomplete (200 OK + array, 503 si bundle absent)
+
+**Serializer** : retourne `created_by={id, username}` (pattern existant). `commands` → string brut (tel que stocké en DB, peut être `null` ou chaîne multiligne).
+
+**Service workflow** (`backend/app/services/simulation_workflow.py`)
+- `apply_patch(simulation, payload, user)` :
+  - sépare champs redteam vs soc
+  - vérifie RBAC field-level
+  - détecte auto-transition pending → in_progress (AC-8.2)
+  - applique le patch + commit
+- `transition(simulation, to_status, user)` :
+  - vérifie state machine (transitions autorisées)
+  - vérifie RBAC role
+  - met à jour status + updated_at
+
+**Service MITRE** (`backend/app/services/mitre.py`)
+- Au boot de l'app : tente de charger `backend/data/mitre/enterprise-attack.json` en mémoire ; si absent ou parse error → flag `mitre_loaded = False` (logue warning, app démarre quand même).
+- Indexe les objets STIX `type == "attack-pattern"` : extract `external_id` (T-id), `name`, `kill_chain_phases[].phase_name`.
+- Fonction `search(query, limit=20)` : ranking par exact-id > prefix-id > substring-name.
+
+**`Makefile`** : remplacer le no-op de `update-mitre` par :
+```makefile
+MITRE_URL ?= https://raw.githubusercontent.com/mitre/cti/master/enterprise-attack/enterprise-attack.json
+update-mitre:
+	@mkdir -p backend/data/mitre
+	@curl -fsSL "$(MITRE_URL)" -o backend/data/mitre/enterprise-attack.json
+	@echo "MITRE bundle updated"
+	@if docker ps --format '{{.Names}}' | grep -q "^$(CONTAINER)$$"; then \
+		echo "Restarting $(CONTAINER) to reload MITRE bundle..."; \
+		docker restart $(CONTAINER); \
+	fi
+```
+
+**Dockerfile** : copier `backend/data/mitre/` dans l'image (présent dans le repo, donc fonctionne au premier build).
+
+**Bundle MITRE** : committé dans le repo à `backend/data/mitre/enterprise-attack.json`. Le backend-builder l'inclut dans son premier commit via `make update-mitre`.
+
+**Tests pytest** (`backend/tests/`)
+- `test_simulations_crud.py` : create + list + get + delete + cascade, RBAC create/delete.
+- `test_simulations_patch.py` : auto-transition pending→in_progress, RBAC field-level soc, blocage soc avant review_required (AC-9.2).
+- `test_simulations_workflow.py` : transitions valides/invalides, RBAC par transition.
+- `test_mitre.py` : load bundle (fixture mini), search ranking, endpoint 503 si pas chargé, sous-techniques incluses.
+
+Tous les tests existants doivent rester verts. Lint ruff + mypy clean.
 
 ### Règles
 - Pas de touche au frontend.
-- Pas d'invention de dépendances hors de la liste ci-dessus sans escalade au team-lead.
+- Pas d'invention de dépendances (pas besoin d'en ajouter).
 - Renvoyer le summary attendu (cf. `.claude/agents/backend-builder.md`).
 
 ---
 
 ## 3. Brief technique — Frontend Builder
 
-**Scope strict** : `frontend/` UNIQUEMENT. Le dossier `e2e/` est **interdit** au frontend-builder — il est sous la responsabilité exclusive du test-verifier (scaffolding Playwright + tests).
+**Scope strict** : `frontend/` UNIQUEMENT. Interdiction de toucher `e2e/`.
 
 ### Livrables
-1. **Structure** :
-   ```
-   frontend/
-     package.json             # react, react-dom, react-router-dom, @tanstack/react-query, axios, tailwindcss, vite, typescript, vitest, @testing-library/react
-     vite.config.ts           # proxy /api -> http://localhost:5000 en dev
-     tailwind.config.ts       # tokens issus de DESIGN.md, font-family principale = "Inter"
-     tsconfig.json
-     index.html
-     src/
-       main.tsx
-       App.tsx                # router, QueryClientProvider
-       api/
-         client.ts            # axios + interceptor (Bearer + 401 purge → /login)
-         auth.ts              # login, me
-         users.ts             # CRUD users
-         engagements.ts       # CRUD engagements
-         types.ts
-       hooks/
-         useAuth.ts           # token in memory + localStorage, role helpers (isAdmin, isRedteam, isSoc)
-         useEngagements.ts    # TanStack Query hooks
-         useUsers.ts
-         useToast.ts          # provider + hook pour notifications éphémères
-       pages/
-         LoginPage.tsx
-         EngagementsListPage.tsx
-         EngagementFormPage.tsx       # new + edit
-         EngagementDetailPage.tsx
-         UsersAdminPage.tsx
-       components/
-         Layout.tsx           # nav, topbar, role-aware menu
-         ProtectedRoute.tsx   # redirect to /login if no token, role gate
-         StatusBadge.tsx
-         FormField.tsx
-         EmptyState.tsx
-         ErrorState.tsx
-         LoadingState.tsx
-         Toast.tsx            # composant + ToastProvider (utilisé par AC-2.6 + AC-3.7)
-       styles/
-         index.css            # tailwind base + DESIGN.md tokens
-         fonts.css            # @font-face Inter (bundlée localement dans public/fonts/, AUCUN CDN)
-     public/
-       fonts/                 # fichiers Inter .woff2 (déposés via npm install + copie post-install, ou commit direct)
-     tests/
-       components/*.test.tsx  # Vitest
-   ```
 
-2. **Police** : `Inter` (substitut Forma DJR Micro choisi par défaut parmi les 3 options DESIGN.md §86-89). Bundlée localement en `.woff2`, jamais via Google Fonts/CDN. Configurée dans `tailwind.config.ts` comme `font-sans` et chargée via `@font-face` dans `styles/fonts.css`.
+**Types** (`frontend/src/api/types.ts`) : ajouter `Simulation`, `SimulationStatus`, `MitreTechnique`, et les payloads PATCH/POST.
 
-3. **Routing** :
+**Client API** (`frontend/src/api/simulations.ts`, `frontend/src/api/mitre.ts`)
-   - `/login`
+- `listSimulations(engagementId)`, `createSimulation(engagementId, {name})`, `getSimulation(id)`, `updateSimulation(id, patch)`, `deleteSimulation(id)`, `transitionSimulation(id, to)`.
-   - `/engagements` (auth, all roles)
+- `searchMitreTechniques(query)`.
-   - `/engagements/new` (auth, redteam|admin)
-   - `/engagements/:id` (auth, all roles)
-   - `/engagements/:id/edit` (auth, redteam|admin)
-   - `/admin/users` (auth, admin only)
-   - `/` → redirige vers `/engagements` ou `/login`
 
-4. **Auth** : token JWT en mémoire + `localStorage` ; intercepteur axios ajoute `Authorization: Bearer <token>` ; 401 → purge token + redirect `/login` + toast "Session expirée" (AC-2.6).
+**Hooks TanStack Query** (`frontend/src/hooks/useSimulations.ts`)
+- `useEngagementSimulations(engagementId)`, `useSimulation(id)`, mutations `useCreateSimulation`, `useUpdateSimulation`, `useDeleteSimulation`, `useTransitionSimulation`.
+- Invalidation : transition + update + delete invalident `["simulations", id]` et `["engagements", eid, "simulations"]`.
 
-5. **Tests Vitest** : 1 test par composant non trivial (états loading/error/empty, comportement des rôles dans `ProtectedRoute`, Toast déclenché par 401).
+**Hook `useMitre`** : `useMitreSearch(query, enabled)` (debounce géré côté composant, hook sans staleTime court — cache 5min).
+
+**Pages**
+- `EngagementDetailPage.tsx` : remplacer le placeholder (lignes 74-81) par `<SimulationList engagementId={eng.id} />`. Conserver le reste.
+- `SimulationFormPage.tsx` (`/engagements/:eid/simulations/new` et `/engagements/:eid/simulations/:sid/edit`) :
+  - Layout en deux cards : "Red Team" et "SOC".
+  - Champs redteam : name, MitreTechniquePicker, description, commands (textarea, une commande par ligne, envoyé tel quel — pas de split), prerequisites, executed_at (datetime-local input), execution_result.
+  - Champs SOC : log_source, logs, soc_comment, incident_number.
+  - Boutons en footer : "Save", "Marquer en revue" (si AC-11.4), "Clôturer" (si AC-11.4), "Supprimer" (modal de confirmation, admin/redteam).
+  - Mode création (`new`) : seul `name` requis ; après création, redirige sur `/engagements/:eid/simulations/:sid/edit`.
+
+**Composants** (`frontend/src/components/`)
+- `SimulationList.tsx` : table tri par created_at desc, colonnes (Name, MITRE, Status badge, Executed at), bouton "Nouvelle" si admin/redteam, ligne cliquable → navigate edit page.
+- `SimulationStatusBadge.tsx` : variant du StatusBadge existant si possible (factoriser), 4 couleurs (pending=fog, in_progress=primary-soft, review_required=bloom-coral, done=storm-deep). Si le StatusBadge existant n'est pas factorisable proprement, créer un nouveau composant — pas d'over-engineering.
+- `MitreTechniquePicker.tsx` : input + dropdown, debounce 200ms (`useDebouncedValue` ou util inline), navigation clavier (↑/↓/Enter/Escape), affichage `T1059 — Command and Scripting Interpreter (initial-access)`. Loading state inline.
+- `ConfirmDialog.tsx` : modal générique de confirmation (utilisée pour delete).
+
+**Routing** (`App.tsx`)
+- Ajouter `/engagements/:eid/simulations/new` (auth, admin|redteam)
+- Ajouter `/engagements/:eid/simulations/:sid/edit` (auth, all roles, RBAC champs interne)
+
+**Tests Vitest** (`frontend/tests/`)
+- `SimulationList.test.tsx` : loading/error/empty + bouton "Nouvelle" gated par role.
+- `MitreTechniquePicker.test.tsx` : autocomplete debounce, sélection met à jour, navigation clavier.
+- `SimulationFormPage.test.tsx` : rôle redteam → tous champs éditables ; rôle soc → champs RT disabled, soc-side enabled si status review_required, bandeau si pending.
+- `SimulationStatusBadge.test.tsx` : 4 variants.
 
 ### Règles
-- Lit le summary du backend-builder EN PREMIER.
+- Lit le summary du backend EN PREMIER (contrat API).
 - Pas d'invention d'endpoints. Mismatch → escalade au team-lead.
-- Respect strict de `DESIGN.md` pour palette/typo/composants.
+- Réutiliser `LoadingState`, `ErrorState`, `EmptyState`, `Toast`, `FormField`, `StatusBadge` existants. NE PAS dupliquer.
-- Pas de CDN remote au runtime — bundle local (police Inter incluse).
+- Respect DESIGN.md (utiliser tokens Tailwind existants — pas de couleurs hardcodées).
-- **Interdiction absolue de toucher `e2e/`** (responsabilité test-verifier).
+- Pas de CDN remote.
 
 ---
 
-## 4. Brief — Docker / Makefile (réalisé par le backend-builder)
+## 4. Definition of Done — Sprint 2
 
-### `docker/Dockerfile` (multistage)
+- [ ] Tous les critères AC-7 → AC-12 passent.
-```dockerfile
+- [ ] `pytest` (existing 63 + nouveaux ~25) tous verts. `ruff`, `mypy` clean.
-# Stage 1: build front
+- [ ] `npm run typecheck`, `lint`, `test` clean frontend.
-FROM node:20-alpine AS frontend-build
+- [ ] Playwright suite (existing 36 + nouveaux ~15) verte.
-WORKDIR /app/frontend
+- [ ] `make build` + `make start` + `make update-mitre` + workflow simulation complet manuel OK.
-COPY frontend/package*.json ./
+- [ ] Code-reviewer (Opus) sans BLOCKER ouvert.
-RUN npm ci
+- [ ] `SPEC.md` (section Simulation enrichie si besoin), `README.md` (mention `make update-mitre` + workflow), `CHANGELOG.md` à jour.
-COPY frontend/ ./
+- [ ] PR ouverte sur `sprint/2-simulations`, récap synthétique team-lead, validation utilisateur.
-RUN npm run build
-
-# Stage 2: python runtime
-FROM python:3.12-slim
-WORKDIR /app
-COPY backend/requirements.txt ./backend/
-RUN pip install --no-cache-dir -r backend/requirements.txt
-COPY backend/ ./backend/
-COPY --from=frontend-build /app/frontend/dist ./backend/app/static
-
-ENV FLASK_APP=backend.app:create_app
-ENV PYTHONUNBUFFERED=1
-ENV PYTHONPATH=/app
-# Variables surchargeables au `docker run` :
-ENV MIMIC_PORT=5000
-ENV MIMIC_DB_PATH=/data/mimic.sqlite
-
-VOLUME ["/data"]
-EXPOSE 5000
-
-# Entrypoint : applique les migrations Alembic puis lance Flask
-COPY docker/entrypoint.sh /entrypoint.sh
-RUN chmod +x /entrypoint.sh
-ENTRYPOINT ["/entrypoint.sh"]
-```
-
-**`docker/entrypoint.sh`** :
-```bash
-#!/bin/sh
-set -e
-flask db upgrade
-exec flask run --host=0.0.0.0 --port="${MIMIC_PORT:-5000}"
-```
-
-Flask sert `backend/app/static` en racine `/` ET expose les blueprints sous `/api/*`. La DB SQLite vit dans `/data/mimic.sqlite` (volume nommé `mimic-data`) — survit à `make restart` (AC-6.4).
-
-### `Makefile`
-Targets requis et leur sémantique :
-
-| Target | Action |
-|---|---|
-| `build` | `docker build -f docker/Dockerfile -t mimic:latest .` |
-| `start` | `docker run -d --name mimic -p $(PORT):5000 -v mimic-data:/data --env-file .env mimic:latest` (`PORT ?= 5000`) |
-| `stop` | `docker stop mimic && docker rm mimic` |
-| `restart` | `$(MAKE) stop && $(MAKE) start` |
-| `update` | `git pull && $(MAKE) build && $(MAKE) restart` |
-| `logs` | `docker logs -f mimic` |
-| `create-admin` | `docker exec mimic flask create-admin $(USER) $(PASS)` (requiert `USER=` et `PASS=`) |
-| `update-mitre` | placeholder no-op Sprint 1 (`@echo "MITRE update: Sprint 2+"`) |
-| `test-backend` | `docker exec mimic pytest -q backend/tests/` (ou run local en venv) |
-| `test-frontend` | `cd frontend && npm run test -- --run` |
-| `test-e2e` | `cd e2e && npx playwright test` (container doit être up) |
-| `clean` | `docker rm -f mimic 2>/dev/null; docker volume rm mimic-data 2>/dev/null; rm -rf backend/__pycache__ frontend/node_modules frontend/dist` |
 
 ---
 
-## 5. Definition of Done — Sprint 1
+## 5. Décisions arrêtées (utilisateur 2026-05-26)
 
-- [ ] Tous les critères d'acceptation des US 1→6 passent.
+1. **Source MITRE** : `https://raw.githubusercontent.com/mitre/cti/master/enterprise-attack/enterprise-attack.json` (default team-lead).
-- [ ] `pytest`, `ruff`, `mypy` clean côté backend.
+2. **MITRE bundle dans le repo** : COMMITTÉ (`backend/data/mitre/enterprise-attack.json` versionné, `make build` autosuffisant).
-- [ ] `npm run typecheck`, `lint`, `test` clean côté frontend.
+3. **Commands storage** : colonne `text` multiligne, une commande par ligne, transport tel quel.
-- [ ] Playwright suite verte côté `e2e/`.
+4. **Workflow auto-transition** pending→in_progress : déclenchée par toute PATCH admin/redteam touchant ≥1 champ redteam à valeur non vide (default team-lead).
-- [ ] Image docker se build (`make build`), démarre (`make start`), répond sur `:5000`.
+5. **Page simulation** : UNE page d'édition role-aware (`/engagements/:eid/simulations/:sid/edit`), pas de page détail séparée.
-- [ ] Code review (Opus) sans BLOCKER ouvert.
+6. **Suppression cascade** : delete engagement → delete simulations (default team-lead).
-- [ ] `SPEC.md`, `README.md`, `CHANGELOG.md` à jour.
+7. **SOC restriction status** : soc ne peut PATCH que si status ∈ {review_required, done}.
-- [ ] PR ouverte sur la branche sprint, validée par l'utilisateur après récap synthétique.
+8. **Sous-techniques MITRE** : incluses dans l'autocomplete (T1059.001 visible) (default team-lead).
 
 ---
 
-## 6. Risques & questions à clarifier avec l'utilisateur AVANT de coder
+## 6. Plan d'exécution (séquence)
 
-1. **DESIGN.md** : faut-il que je relise DESIGN.md (27 Ko, déjà présent dans le repo) avant que le frontend-builder l'utilise ? OUI
+1. ✅ User a validé les 8 décisions §5 (2026-05-26).
-2. **Persistance SQLite** : DB stockée dans `/data/mimic.sqlite` montée comme volume nommé `mimic-data`. OK ? OK
+2. ✅ **Spec-reviewer** : APPROVED WITH NOTES (4 items mineurs corrigés avant dispatch).
-3. **Port** : `5000` (Flask défaut). Conflit possible avec macOS AirPlay si jamais — on s'en fiche en Linux. Surcharge du port possible via dockerfile et container.
+3. ✅ **Backend-builder** : commit `006c4c2` (67 nouveaux tests, 130 passing).
-4. **CSRF** : on est en API JWT pure, pas de cookie session, donc pas de CSRF protection nécessaire côté serveur. OK ? OK
+4. ✅ **Frontend-builder** : commit `765bb5a` (41 nouveaux tests, 61 passing).
-5. **Refresh token** : exclu V1. JWT court (60 min) ; user devra se reconnecter. OK ? OK
+5. ✅ **Code-reviewer** : 2 MAJOR + 4 MINOR + 3 NITs → 2 commits de fix (`83bf60f` backend, `c9032a9`+`cf0e8a8` frontend).
-6. **Logout** : V1 = client-side uniquement (purge du token). Pas de blacklist. OK ? OK
+6. ✅ **Test-verifier** : 32/32 sprint 2 verts, commits `da905cc` + `54e90f7` (AC-4.9 refresh).
-7. **CI** : pas mentionné dans la spec. Skip pour Sprint 1 ? (à confirmer) On verra plus tard.
+7. 🟡 **Team-lead** : récap + PR en cours.
-8. **README.md** : actuellement absent. Le team-lead le crée en fin de Sprint 1 avec instructions `make build / start / create-admin`. OK.
 
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+Branche unique : `sprint/2-simulations`.
-
-## 7. Plan d'exécution (séquence)
-
-**Branche unique pour ce sprint** : `sprint/1-auth-engagements` (pas de sous-branches builders, le sprint est séquentiel).
-
-1. ✅ **Spec-reviewer** (`.claude/agents/spec-reviewer.md`, override projet du built-in) valide ce plan vs SPEC.md.
-2. 🔵 **Backend-builder** implémente `backend/` + `docker/Dockerfile` + `docker/entrypoint.sh` + `Makefile`, livre son summary (incluant le contrat API).
-3. 🔵 **Frontend-builder** lit le summary backend puis implémente le front (`frontend/` UNIQUEMENT, jamais `e2e/`).
-4. 🔵 **Code-reviewer** relit le diff du sprint (LSP-first, focus bugs/qualité/scope).
-5. 🔵 **Test-verifier** **scaffolds** `e2e/` (Playwright config, package.json, fixtures auth) **puis écrit** les acceptance tests Playwright et exécute la suite contre le container démarré via `make start`.
-6. 🟢 **Team-lead** (moi) prépare la PR + récap synthétique → user valide.
-
-**Responsabilité `e2e/`** : exclusivement le test-verifier. Backend-builder et frontend-builder n'y touchent jamais.