Test Hygiene Blocker Fix Evidence

What Was Tested

• git diff --unified=20 v4.13.0..HEAD -- <target files> captured the release-added behavior that triggered blockers #6 and #7.
• Pure LOC checks measured the oversized legacy tests before and after, plus the new focused sibling tests.
• rg --pcre2 -n "(?<!await\\s)expect\\([^\\n]+\\)\\.rejects" packages/team-core/src/team-state-store/locks.test.ts checked for remaining un-awaited .rejects assertions.
• bun test ran the focused model-core, OpenCode subagent resolver, and team-core lock test files.
• The TypeScript no-excuse checker ran over every changed test file.
• opencode-qa common self-check verified the local OpenCode QA harness dependencies and isolated XDG sandbox support.

What Was Observed

• Before: release delta showed behavior added to three oversized SIZE_OK test files, and locks.test.ts had two un-awaited .rejects assertions.
• After: release-added behavior lives in focused sibling tests:
  • packages/model-core/src/model-capabilities-heuristics.test.ts (26 pure LOC)
  • packages/model-core/src/model-resolver-provider-scope.test.ts (61 pure LOC)
  • packages/omo-opencode/src/tools/delegate-task/zauc-mocks-subagent-resolver/subagent-resolver-agent-overrides.test.ts (95 pure LOC)
• Legacy SIZE_OK comments remain only on the pre-existing oversized matrix files and now state that new behavior must go in focused sibling tests.
• The .rejects audit returned exit code 1 after the fix, meaning no un-awaited matches remained.
• Focused test runs passed:
  • model-core: 68 pass, 0 fail
  • subagent resolver: 62 pass, 0 fail
  • team locks: 10 pass, 0 fail

Artifacts

• before-release-delta.txt: release delta that identified the affected behavior cases.
• before-size-and-rejects.txt: pre-fix pure LOC counts and un-awaited lock assertions from HEAD.
• after-size-and-rejects.txt: post-fix pure LOC counts, remaining legacy SIZE_OK comments, and clean un-awaited .rejects search.
• model-core-tests.txt: focused model-core test output.
• subagent-resolver-tests.txt: focused OpenCode subagent resolver test output.
• team-locks-tests.txt: focused team-core lock test output.
• no-excuse-check.txt: TypeScript hygiene checker output.
• opencode-qa-common-self-check.txt: OpenCode QA harness self-check output.

Why This Is Enough

The blocker was test hygiene, not product behavior. The evidence proves the release-added behavior is no longer hidden in oversized bypassed tests, the remaining size bypasses are legacy-only and explicitly direct future behavior into sibling tests, every lock rejection assertion is awaited, and the exact impacted test suites still pass.

What Was Omitted

No production OpenCode session was driven because this PR changes tests only and does not alter plugin runtime code, hook wiring, CLI behavior, or configuration. No secret-bearing logs, auth headers, launchd output, or environment dumps were captured.