**Reuse a skipped shared-code advisory only with complete structural evidence:** 1. **Read the evidence.** Read all supporting callers and the helper destination. Establish first-party authored provenance and whether the current extraction is worthwhile; the checker cannot decide that. Retain `evidence_paths`/`helper_target`. 2. **Run the checker.** From the repository root, pass the current finding as literal JSON on stdin. Replace REVIEW_START with this pass's captured token and the example paths/symbol with actual evidence. Keep the quoted delimiter. ```bash "$HOME/.claude/skills/gstack/bin/gstack-review-log" --check-shared-libs REVIEW_START <<'GSTACK_SHARED_LIBS_REUSE_JSON' {"advisory":true,"severity":"INFORMATIONAL","evidence_paths":["src/caller-a.ts","src/caller-b.ts"],"helper_target":{"path":"src/shared.ts","symbol":"sharedHelper"}} GSTACK_SHARED_LIBS_REUSE_JSON ``` 3. **Act on its result.** Read the JSON. Only `reusable: true` permits suppression. False, command failure or unreadable output requires fresh source review and a new decision, never suppression. Do not supply your own snapshot, prior record or coverage. 4. **Persist through the logger.** The logger recomputes final coverage; never supply proof yourself. Real defects retain normal Fix-First handling independently. **What a reusable result proves (do not reconstruct these checks yourself):** - Identity: `sharedLibsFingerprint` plus the actual repo, raw branch and current snapshot. The checker reads REVIEW_START without consuming/replacing it. Sanitized branch names are not identity. - Prior decision: completed/converged review, verified binding, explicit Skip and logger-versioned `snapshot_covered_paths`; older unversioned coverage needs a fresh decision. - Source: `canReuseSharedLibsAdvisory` requires every supporting path's raw file byte-for-byte with its blob. Exclude assume-unchanged, skip-worktree and sparse index entries; symlinks/ancestors, submodules, ignored/outside or unreadable files; active/unknown Git filters, encodings and line conversion. - Safe inspection: disables fsmonitor and optional locks; never uses external diff/textconv. Unknown evidence fails closed.