Follow-up reconciling the four cherry-picked contributor fixes with the
full-dir GitHubSource.fetch() that landed in #98246:
- Missing SKILL.md-linked support paths now warn and install without the
file at all three sources (GitHub full-dir, GitHub fallback, UrlSource) —
dangling links are prose over-matches or repo-only dev tools, not install
blockers (#66760/#90081). A referenced path present in the tree as a
SYMLINK stays a hard rejection.
- Extension requirement dropped from the glob/placeholder filter:
references/LICENSE is a legitimate support file (82236's tests pin this).
Truncated prose placeholders (references/type-<name>.md -> 'type-') are
still rejected via the trailing-separator shape.
- percent-quoted Contents-API path (82236) merged with revision pinning
(96336) in _fetch_file_bytes.
- Fixture typo fix: four cherry-picked test strings used '\---' where
'\n---' was meant (DeprecationWarning + frontmatter never parsed).
Validation: 167/167 across tests/tools/{skills_hub,skills_guard,
skill_bundle_provenance} + tests/hermes_cli/test_skills_hub.py; live GitHub
fetches (impeccable 163 files rev-pinned; anthropics frontend-design).
d041ed7ab2