DoneClaim Evidence: teams partial merge repair

Hypothesis / root cause

Final Gate B failed because readConfigSource() validated every individual source layer with OmoConfigSchema before merging. That full schema requires teams.<name>.members, so a nearer layer containing only teams.alpha.description was rejected before mergeOmoConfigRecords() could combine it with a farther layer containing teams.alpha.members.

The repair adds a source-layer schema that keeps root keys strict and validates present value types, but permits partial teams.<name> objects. The final merged object still validates with the full OmoConfigSchema, so truly invalid final config remains diagnostic-producing.

RED / GREEN proof

• RED focused regression: red-teams-partial-merge-20260706.txt
  • Invocation: bun test packages/omo-config-core/src/loader/loader.test.ts -t "same-key partial team layers"
  • Observable: failed with Invalid omo config ... teams.alpha.members on the nearer project layer.
• GREEN focused regression: green-focused-teams-partial-merge-20260706.txt
  • Invocation: same focused test.
  • Observable: 1 pass, 0 fail, 3 expect() calls.

Verification command summary

• bun test packages/omo-config-core --bail
  • Artifact: bun-test-omo-config-core-bail-20260706.txt
  • Observable: 19 pass, 0 fail.
• bun test tests/omo-config-category-drift.test.ts --bail
  • Artifact: bun-test-category-drift-bail-20260706.txt
  • Observable: 1 pass, 0 fail.
• bun run typecheck
  • Artifact: bun-run-typecheck-20260706.txt
  • Observable: tsgo --noEmit package chain exited 0.
• git diff --check
  • Artifact: git-diff-check-working-tree-20260706.txt
  • Observable: empty output, exit 0.
• git diff --check origin/code-yeongyu/senpi-task-w0-config-schema...HEAD
  • Artifact: git-diff-check-origin-schema-range-20260706.txt
  • Observable: empty output, exit 0.
• TypeScript no-excuse checker
  • Artifact: typescript-no-excuse-check-20260706.txt
  • Observable: No violations in 4 file(s).

Manual public API QA

Artifact: manual-public-api-qa-20260706.txt

Invocation: bun --eval using loadOmoConfig from packages/omo-config-core/src/index.ts with temporary fixture directories.

Observed:

• Same-key partial teams.alpha merge returned same_key_merge_diagnostics [].
• Final config had same_key_merge_description near layer description.
• Final config preserved same_key_merge_member one.
• Invalid config produced invalid_diagnostic_kinds validation and invalid_issue_paths task.default_concurrency.
• Temp fixture cleanup returned invalid_fixture_exists_after_cleanup false and merge_fixture_exists_after_cleanup false.
• Diff/status receipt showed only the intended config-core files plus the evidence patch cleanup before ignored evidence staging.

Product diff / cleanup receipt

• Whitespace cleanup target: product-diff-20260706.patch
• Current scoped product diff artifact: product-diff-teams-repair-20260706.patch
• Exact required range whitespace check artifact: git-diff-check-origin-schema-range-20260706.txt

Adversarial classes

• malformed_input: covered by invalid task.default_concurrency manual QA and existing loader malformed-config test.
• stale_state: temp fixtures use fresh mkdtemp/PID paths and cleanup receipts prove removal.
• dirty_worktree: manual-public-api-qa-20260706.txt and pre-commit status reviewed only allowed files/evidence.
• misleading_success_output: RED artifact captures the original failure; GREEN/full-suite artifacts capture pass counts.
• flaky_tests: focused test, package test, category drift, and typecheck were run as separate invocations.
• hung_or_long_commands: all required commands completed with captured output.
• prompt_injection: not applicable; no external prompt/content execution path changed.
• cancel_resume: not applicable; no interrupted/resumed runtime state was used.
• repeated_interruptions: not applicable; this turn had one continuous repair pass.

Cleanup receipt

No persistent temp fixtures remain from manual QA. No debug statements, temp scripts, or source instrumentation were added. Evidence artifacts are under .omo/evidence/senpi-task/task-2-config-loader-writer/.