fix(core): strip a BOM before the adapter import check, and split usage exits

Narrowing has_reference to bool(import_lines) meant a UTF-8 BOM hid the import
line, since the BOM is not \s: a CLAUDE.md whose first line is @AGENTS.md failed
with 'no reference to AGENTS.md' and was told to add the line already in front of
it. Decoding is now strict too, so a non-UTF-8 adapter gets an encoding
diagnostic instead of being mangled and then graded on the mangling.

Usage errors move to exit 2. They shared exit 1 with real findings, while the
skill tells the agent to fix any non-zero exit by editing the provider file.

The whole-line import rule is kept deliberately -- accepting an inline @AGENTS.md
would also accept one inside backticks, which is the silent-drop failure the
validator exists to catch -- and the message now says so.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EJJrm5YmacbwMdzZpXcoti
This commit is contained in:
2026-08-31 19:46:07 +00:00
parent 00daf285ec
commit a8cd5e881d
9 changed files with 162 additions and 31 deletions

View File

@@ -23,7 +23,7 @@ Provide the path to the provider-specific file to convert (and the target repo r
| File | Purpose |
|------|---------|
| `SKILL.md` | Skill instructions for agents |
| `references/provider-matrix.md` | Loaded at Step 1 before searching, unless the target is already a known root `CLAUDE.md`: known files per provider, which ones resolve a cross-file import, and the validator flag each needs |
| `references/provider-matrix.md` | Loaded at Step 1 before searching, unless the target is already a known root `CLAUDE.md`: known files per provider, which ones resolve a cross-file import, the validator flag each needs, and the rule that a standalone run and a run composed into by `agentsmd-author` behave identically |
| `references/sources.md` | Provenance record — the in-repo ADR precedent this skill's design is modeled on |
| `scripts/validate-adapter.sh` | Self-check gate: reference to AGENTS.md present, no excessive duplication, adapter stays thin |
| `scripts/README.md` | Directory documentation for `scripts/` |