c740c59359
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01RMoEx7hfdFGjUiCHuN1RRi
57 lines
3.2 KiB
Markdown
57 lines
3.2 KiB
Markdown
# Scratchpad — Fleet Phase 2: Observability (W-FLEET)
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> Append-only. Mission `mvp-20260312` / workstream W-FLEET.
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> Lead: Jarvis (Claude) at `W-jarvis:mos-claude-18`. Coordinating with `jwoltje@dragon-lin:coder0-0`.
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## Mission prompt (2026-06-20)
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Establish the north star for the Mosaic Fleet feature and prepare Phase-2 observability
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for delivery. The USC tmux PoC is the proven base. Jason granted lead authority:
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"The fleet is a great way to actually build the MVP — we are building the system that
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builds the system." Dogfood actual agent construction + ad-hoc deployment; coordinate
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with a second agent on `dragon-lin`.
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## Decisions of record (with Jason, 2026-06-20)
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- Agent model: config defines, session runs (gateway = definition/identity/auth; tmux = runtime).
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- Tenancy: multi-tenant from the start; isolation = per-tenant Linux uid.
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- Health: heartbeat required; dogfood stub implements protocol now.
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- Lifecycle: hybrid (core always-on + ephemeral workers).
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- Observation: read-only default, opt-in takeover.
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- Multi-host: designed-for day one; control plane rides federation (W1), not a bespoke broker.
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- Delivery: CLI-first, dogfood on the live stub fleet; webUI deferred to Phase 5.
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- Fleet is dual-role: product AND means of production (bootstrapping the MVP).
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- Code review = **dual-engine**: Claude **and** gpt-5.5/Codex, run together (Jason: the
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combination produces the best results). Launch reviewers via `mosaic yolo pi` / `codex`
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(proven path) or `~/.config/mosaic/tools/codex/codex-code-review.sh`. Applies to all
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code-review gates incl. FLEET-OBS-008. Per Jason 2026-06-20.
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- Worktree discipline: do fleet work in `~/src/mosaicstack-stack-worktrees/<branch>`, NOT
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the shared main checkout — concurrent processes mutate `main` there (learned 2026-06-20).
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## Environment facts (verified 2026-06-20)
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- Fleet is live on `W-jarvis` (uid 1000, `jarvis`, `Linger=yes`) on tmux socket
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`mosaic-factory`: `_holder`, `canary-pi`, `dogfood-coder`, `dogfood-orchestrator`,
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`dogfood-reviewer`. All panes run `~/.config/mosaic/fleet/dogfood-agent.py` (stub),
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including `canary-pi` (roster says runtime=pi → **drift**).
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- Holder + `mosaic-agent@*` units are `active (exited)` but `UnitFileState=disabled`
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(reboot loses fleet → boot-enable gap to surface).
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- Observation blocked by: isolated socket (hidden from default `tmux ls`), `capture-pane`
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blank for TUIs, `attach` being read-write + resizing.
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- Second agent: `jwoltje@dragon-lin`, session `coder0-0` (group `coder0`), running `node`,
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default socket. ssh forward reach confirmed.
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## Governance / collision-safety
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- `mosaicstack-stack` has active mission `mvp-20260312` with single-writer locks on
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`docs/MISSION-MANIFEST.md`, `docs/TASKS.md`, `docs/scratchpads/mvp-20260312.md`.
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- This workstream touches NONE of those. All Fleet docs scoped under `docs/fleet/` +
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this scratchpad. Rollup row proposed, not written.
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## Session log
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- 2026-06-20: Researched AI guide + fleet code + live state. Established north star with
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Jason (8 forks decided). Branched `feat/fleet-observability`. Persisted
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`docs/fleet/{north-star.md,PRD.md,TASKS.md}` + this scratchpad. Next: establish comms
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with dragon-lin coder, commit docs, begin Phase-2 delivery (heartbeat + `fleet ps`).
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