dhpk-openspec-artifact-guardlisted

# OpenSpec artifact guard OpenSpec's directory shapes are easy to mis-name. The most expensive mistake — editing `openspec/specs/` directly during an active change — is also the most invisible: nothing throws, the file commits cleanly, and the delta-merge step on archive silently does nothing because the SSOT already matches. This skill is the fast pre-archive guard. The deep verifier is `openspec-verify-change` (different skill). Run this one whenever `openspec/**` files are in the diff. > Background reading: `modules/library-author/references/openspec-naming-gotchas.md` --- ## When to run - Editing any file under `openspec/` - Reviewing a PR whose diff touches `openspec/` - Before invoking `openspec:archive` on a change (last-line safety net) - After mass-rename in the openspec tree (slug normalization) ## When NOT to Use - Editing source code that has nothing to do with the spec - Running `openspec:verify` already (it covers a superset of these checks) --- ## Inputs The diff under `openspec/` (or, if no diff, the current working tree state): ```bash git diff --name-only -- openspec/ # or, if no diff: find openspec/ -type f -name '*.md' -newer openspec/project.md 2>/dev/null ``` Also read `openspec/changes/*/` directory shapes (regardless of diff). --- ## Checks ### Check 1 — Direct SSOT edit during active change (CRITICAL) Find files matching `openspec/specs/**` in the diff that are NOT in an archive commit. ```bash git diff --name-only | grep -E '^opensp