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the-nexus/docs/mission-cell-spec.md
Alexander Whitestone fe0005974f
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docs: add Mission Cell foundation spec (#879)
2026-04-15 09:40:26 +00:00

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# Mission Cell Directory Spec
This document defines the foundational Mission Cell filesystem contract for Lazarus Pit.
It is a grounded M6 foundation slice, not the full Mission Cell runtime.
Root layout:
- `/var/missions/<uuid>/`
Required subdirectories:
- `meta/`
- `config/`
- `state/`
- `logs/`
- `artifacts/`
- `worktree/`
Required seed files:
- `meta/mission.json`
- `config/cell.json`
- `state/heartbeat.json`
- `logs/daemon.log`
## Intent of each path
- `meta/mission.json`
- durable mission identity and lifecycle metadata
- includes `mission_id`, `created_at`, and current status
- `config/cell.json`
- local cell wiring
- points to the worktree, artifacts directory, and heartbeat file
- `state/heartbeat.json`
- latest cell heartbeat timestamp and state
- consumed by Lazarus Pit scans for healthy vs stale cell classification
- `logs/daemon.log`
- daemon-local operational log target
- `artifacts/`
- handoff packets, reports, checkpoints, and mission outputs
- `worktree/`
- mission-specific checked-out repository workspace
## Lazarus Pit daemon skeleton
`scripts/lazarus_pit.py` provides the foundation daemon behavior:
- initialize a Mission Cell scaffold with `--init-cell <uuid>`
- scan all cells under the configured missions root
- classify cells as `healthy`, `stale`, `incomplete`, or `uninitialized`
- emit a daemon heartbeat through the existing cron heartbeat writer
- output a JSON health report for higher-level watchers
Default config lives at:
- `config/lazarus_pit.json`
## Example bootstrap
```bash
python3 scripts/lazarus_pit.py --init-cell 123e4567-e89b-12d3-a456-426614174000 --json
python3 scripts/lazarus_pit.py --write-heartbeat --json
```
## What remains for full #879 completion
This slice does not yet complete the whole issue.
Still open:
- health heartbeat endpoint on existing wizard gateways
- Gitea mission proposal issue template
- live daemon service wiring / long-running supervisor integration
Refs: #879