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+# ECC 2.2 release-readiness TDD evidence
+
+Date: 2026-08-24
+
+## Scope
+
+This pass covers the release blockers found in the delta from `v2.1.0`: cumulative selective-install ownership, native Antigravity packaging, canonical OpenCode installation, provider-neutral OpenCode agents, `skill-comply` distribution, conservative legacy Codex uninstall, release-workflow safety, and guided-install filesystem boundaries.
+
+## RED
+
+Commit `6e66dfba` added release regressions before the repairs. All six focused commands exited nonzero on the `origin/main` baseline:
+
+- A second selective install retained only the second module in install-state.
+- OpenCode resolved to `~/.opencode` instead of `~/.config/opencode`.
+- Managed preflight accepted a plan without an install-state path.
+- `skill-comply` was absent from the npm archive.
+- Release workflows lacked registry-error discrimination, an exact-main gate, reviewed notes, and npm-first publication ordering.
+- The packed lifecycle did not exercise Antigravity or OpenCode.
+
+Commit `528dbea0` added a security regression proving guided preflight accepted an identical copy source through a symbolic link. It failed before the no-follow snapshot repair.
+
+## GREEN
+
+- Focused installer, lifecycle, packaging, release-workflow, manifest, OpenCode, Antigravity, and uninstall tests passed.
+- Full repository suite: 3,958 passed, 0 failed.
+- `npm audit --audit-level=low`: 0 vulnerabilities.
+- Supply-chain IOC scan: 207 files inspected, no findings.
+- Both release workflow YAML files parsed successfully.
+- Exact packed archive lifecycle passed on macOS with Node 24.9.0 using SHA-256 `c79fbabbbb2567835081c17804f692c77b0673f22e0e0a2e63e870b99a7b8592`.
+- The packed lifecycle covered npm installation, public CLI setup, cumulative Cursor install, drift detection, repair, uninstall, user-file preservation, Antigravity install/doctor/uninstall, and OpenCode install/doctor/uninstall.
+
+## Focused coverage
+
+All three changed core modules exceeded the 80 percent line target:
+
+| Module | Lines | Functions | Branches |
+| --- | ---: | ---: | ---: |
+| `scripts/lib/multi-harness-setup.js` | 88.42% | 82.75% | 73.18% |
+| `scripts/lib/install/claude-skill-migration.js` | 95.20% | 100% | 88.78% |
+| `scripts/lib/install-targets/opencode-home.js` | 86.66% | 100% | 78.94% |
+
+Coverage commands used `c8 --check-coverage --lines 80` against the corresponding focused test files.
+
+## Release boundary
+
+No merge, release tag, GitHub Release, or npm publication was performed during this pass.