Spec Consistency (Anti-Drift)

When to use

Use whenever:

• Behavior changes (features/bugs/refactors that affect outputs)
• /docs changes (especially /docs/use-cases/)
• New endpoints/routes/commands are added
• QA Gatekeeper is reviewing completion
• Repo Explorer suspects drift

Drift is blocking in Gaia.

Inputs

• /docs/ (use-cases, architecture, testing docs)
• Code changes (API/CLI/UI)
• Tests (unit/integration/e2e)
• CI workflows
• Docker compose + Makefile

Outputs

• Drift status: none | suspected | confirmed
• A concrete fix list (docs updates and/or code/test/CI alignment)
• Updated docs/tests/configs so docs and repo behavior match

Core rule

If unsure about “source of truth” direction, default to docs. Orchestrator may decide case-by-case, but must be able to justify in 1 line.

If “code wins” changes a use case: apply use-case gates (Playwright specs + manual regression).

Checks (do these in order)

1) Use-case ↔ behavior

For each affected UC file:

• Does the described outcome exist in the system?
• Are inputs/outputs (status codes, payload shapes, UI states) consistent?
• Are acceptance criteria testable and still true?

If UC changed (new/change/remove): trigger use-case gates.

2) Public surface ↔ docs

Validate consistency between:

• Documented routes/commands and actual ones
• Auth requirements and actual behavior
• Error formats/codes and actual behavior
• Versioning / pagination / sorting rules (if applicable)

3) Tests ↔ use cases

• For use-case changes: ensure integration/e2e coverage exists.
  • Web: Playwright specs (follow repo convention; else standardize)
  • API: curl-like checks against docker-compose stack
• Ensure tests reference UC IDs where relevant (web specs include UC ID in filename).

4) CI ↔ reality

• CI must run lint/build/tests as applicable.
• Ensure CI uses the same commands as local Make targets (or vice versa).
• If CI failing: fix CI first (blocking).

5) Docker/Make ↔ docs

If HTTP API:

• docker-compose must exist and match documented run instructions
• .env.example exists and docs list required vars (high-level) Makefile:
• make up/down/test/lint/build (or best approximation) exists and docs reflect it

Fix strategies

• Prefer minimal, surgical changes that restore consistency.
• If docs are correct: change code/tests/configs to match docs.
• If code is correct and docs outdated: update docs comprehensively.
  • If behavior/use-cases change as a result → apply use-case gates.

Validation checklist (before declaring “no drift”)

• UC acceptance criteria matches observable behavior
• Playwright specs exist when web use-cases changed
• Manual regression labels completed for use-case changes (curl, playwright-mcp)
• CI exists and is green
• Make targets align with CI and docs
• Skills that mention commands/paths match reality (skill drift = blocking)

References

• AGENTS.md (drift policy; blocking)
• .github/skills/gaia-process/SKILL.md (workflow)
• .github/skills/doc-derivation/SKILL.md (restore docs-first)
• .github/workflows/, Makefile, docker-compose.yml
• /docs/use-cases/, /docs/architecture/, /docs/testing/