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docs(adapters): adapter seam docs + recorded M4 E2E, release 0.0.5 (#19)

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- README: Runtime adapters section (contract summary, selection, mission
  injection point); BUILD-LOG Phase 8 entries
- E2E: 24+24+14 selftests green; verify PASS; 0.0.5 packaged and
  health-gated activated; mission-bearing fixture task succeeded through
  the real pi adapter; config checksum unchanged

Closes #19
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jason.woltje
2026-09-02 21:30:35 -05:00
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BUILD-LOG.md
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@@ -192,4 +192,33 @@ Mission/task layer verified end-to-end. `main` merged with M2 and tagged `missio
Release model and safe updates verified by drills. `main` merged with M3 and tagged `release-model-v1`.
---
## Phase 8: Runtime adapter seam (M4)
### Entry 8.1 — before
- Timestamp: 2026-09-03
- Intended action: Formalize the harness boundary (Gitea milestone M4, issues #16-#19): documented adapter contract under /opt/mosaic/adapters/<name>/adapter.sh; run-agent.sh becomes a dispatcher; pi extracted unchanged; deterministic mock adapter for provider-free seam tests; config gains optional execution.adapter (default pi, configVersion unchanged); mission directives gain their sanctioned injection point via the run snapshot; RELEASE bumps to 0.0.5 with a health-gated activation.
- Reason: Future harnesses (Claude, Codex, OpenCode) must be additive — one directory each — and mission content needs a single sanctioned path into the runtime.
- Expected result: All suites green including new deterministic seam cases; 0.0.5 activated by health gate; mission-bearing run recorded.
### Entry 8.2 — after
- Timestamp: 2026-09-03
- Commands run: scripts/test-config.sh; scripts/test-task.sh; scripts/test-release.sh; manual seam drills (mock verbatim, unknown/traversal adapter refusal); mission injection checks; release package + activate for 0.0.5.
- Observed result:
- Config suite 24/24 (adapter default/validation/env export).
- Task suite 24/24 including deterministic mock cases (gate pass, expect-mismatch with reason, unknown adapter fail-closed) and mission injection asserted by prompt content.
- Release suite 14/14; image mosaic-poc-agent:0.84.4-r0.0.5 packaged and activated via exact-marker health gate.
- Mission directives now flow: task -> run snapshot -> container env -> generated prompt MISSION (runtime) section.
- Failure or correction:
1. Selection authority settled: load_config always exports MOSAIC_ADAPTER from config; environment overrides for scripts are therefore not a supported selection path (by design).
2. Selftest harness: three authoring defects fixed (helpers used before definition; one config file reused across cases leaking adapter state; a static mission fixture asserted against distinctive seam directives; plus an accidentally duplicated live block removed).
- Credential check: no credential material in adapters, prompts, run records, or logs.
## Result (M4)
Adapter seam verified; harness boundary is now additive by construction. `main` merged with M4 and tagged `adapter-seam-v1`.