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Convention — projects/<client>/<skill>/<run_id>/

## §3 Proposed Convention

### 3.1 Root location

All skill outputs, evidence artifacts, and forge deliverables write under:

```
~/projects////
```

Where:
- `` — client slug (e.g., `bilko`, `drop`, `intesa`) or `alai` for internal ALAI work.
- `` — one of: skill name (e.g., `task-postflight`), `mc-` (for MC-scoped work), or `forge` (for forged prompts/artifacts).
- `` — `YYYY-MM-DD--` (sortable by date, traceable to MC, unique per run).

### 3.2 Path table

| Output type | Path pattern | Concrete example |
|---|---|---|
| Skill output (generic) | `~/projects////` | `~/projects/alai/task-postflight/2026-05-05-99292-a1b2c3/` |
| Builder evidence | `~/projects//mc-/evidence/` | `~/projects/bilko/mc-10611/evidence/` |
| Forge artifacts | `~/projects//mc-/forge/` | `~/projects/alai/mc-99102/forge/` |
| Brief (input) | `/brief.md` | `~/projects/alai/task-postflight/2026-05-05-99292-a1b2c3/brief.md` |
| Outcome (output) | `/outcome.md` | `~/projects/alai/task-postflight/2026-05-05-99292-a1b2c3/outcome.md` |
| Supplemental evidence | `/evidence/` | `~/projects/alai/task-postflight/2026-05-05-99292-a1b2c3/evidence/` |
| Provenance record | `/.provenance.json` | `~/projects/alai/task-postflight/2026-05-05-99292-a1b2c3/.provenance.json` |

### 3.3 run_id format

```
YYYY-MM-DD--
```

Example: `2026-05-05-99292-a1b2c3`

- **YYYY-MM-DD** — ISO date of run start. Enables `ls -t` chronological sort.
- **** — Mission Control task id. Enables direct lookup via `mc.js show`.
- **** — 6-character random hex. Prevents collision when the same MC triggers multiple runs in one day.

For runs not tied to a specific MC (e.g., background daemon output), use `mc-0` as the mcid segment.

### 3.4 `.provenance.json` schema

```json
{
  "mc_id": "99292",
  "agent": "codecraft",
  "model": "claude-sonnet-4-6",
  "timestamp": "2026-05-05T21:26:00Z",
  "skill": "task-postflight",
  "client": "alai",
  "run_id": "2026-05-05-99292-a1b2c3"
}
```

All fields are string. `timestamp` is ISO 8601 UTC. Written at run start (not completion) so partial runs are recoverable.

### 3.5 brief.md

The brief is the input contract for the run. It is written by the invoking agent before execution begins. Content: MC task description + acceptance criteria (or equivalent task spec). For skills invoked by task-postflight, the AC list IS the brief. For codecraft builds, the Mehanik-cleared BUILD-BLUEPRINT section is the brief.

Brief is written first, outcome last. If a run crashes, the brief survives and the run is recoverable.

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