anvil-sync

Register the skill in the anvil-skills.yaml manifest with state planned and its adapt rules, then run vendor-sync.sh vendor <name>. The script copies files from the submodule HEAD, applies the rename rule, records the pin, and lists any judgment-based adaptations you must apply manually.

Run vendor-sync.sh pull to fetch submodule updates, then status to see which skills are behind, then update to perform a 3-way merge. The merge base is rebuilt from the pinned commit, so local adaptations are preserved while upstream changes merge in.

The pin does not advance and the script lists the conflicted files with merge markers. Resolve them manually, favoring the anvil side only when a catalog adaptation rule justifies it, then rerun update to complete the sync.

Verify checks that frontmatter names match directories, relative links resolve, no relative path crosses skill boundaries, denied upstream tokens are absent, no operational identifiers from the predecessor tool remain, vendored manifest entries exist, and the lock file matches the payload.

The script requires bash, git with the upstream repositories cloned as submodules under references/, and python3 with PyYAML installed to read the YAML manifest. These requirements apply only to this maintenance tool, not to the distributed payload.