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The ADR-0020 body trim took `skill-audit` from 2,623 body words to a dispatch shape, and two things went out with it that were not padding. The manual structural fallback was one. Its replacement was a single sentence telling the auditor to report an INFO when `validate.sh` cannot run — so with no `python3` or no PyYAML, `skill-audit` reported the gap honestly and then audited nothing structural at all. Every ADR-0020 measurement, the whole-file ceilings, the name-to-directory match, the `references/` pointer check and the script hygiene checks silently left the audit. A skill's whole Structure dimension hanging on one optional interpreter is the same vacuous-pass shape the gate scripts were just fixed for, one layer up. The `E100 Runtime error ... does not exist` diagnostic was the other. That exit code means an explicit relative `--config` was passed to `vale-wrap.sh` while vale itself was installed and working; without the note, Step 1's fallback reads exit 2 as "vale unavailable" and downgrades the description, body-discipline and patterns dimensions to full LLM judgment for a config error it could have fixed. That misreading is already recorded in CONTEXT.md as the reason both audit skills stopped passing `--config` at all. Both are restored in `references/validation-scripts.md`, loaded only when a Step 1 script fails — so the body pays nothing for them on a clean run, which is what the dispatch pattern is for. The file also carries the by-hand boundary-target procedure and the three ways to misread the result, including that `INFO ... DID NOT RUN` is not a pass. `references/file-structure.md` gains the one sanctioned spelling for a cross-skill reference. The possessive form (``skill-audit's references/validation-scripts.md``) is the only spelling both rules accept: a full repo path is what that section already forbids, and a bare `references/<file>.md` is now a hard ERROR from the ADR-0020 pointer check, which requires the file to exist in the skill's *own* directory. Without the rule the two constraints look mutually exclusive. Refs: ADR-0020
119 lines
7.9 KiB
Markdown
119 lines
7.9 KiB
Markdown
---
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source_keys:
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- agentskills-spec
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- agentskills-using-scripts
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---
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# Validation Scripts Reference
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Read this when a Step 1 script fails, cannot run, or reports something that needs interpreting.
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Nothing here is needed on a clean run.
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## Report the gap, do not guess
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If a script cannot run at all — Bash denied, `python3` unavailable, PyYAML not importable, `vale`
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not installed — say so as an **INFO** finding naming the script and the missing dependency, then
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fall back to the manual checks below. An INFO never changes PASS/FAIL. Silently omitting the
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dimension a script would have covered reports a clean audit that checked less than it claims to
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have checked, and the Step 4 coverage line then names a dimension nothing actually examined.
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## Manual structural fallback
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`validate.sh` needs `python3` **and** PyYAML, and refuses to start without either — the description
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value has to be measured after YAML folding is resolved, so skipping the ADR-0020 gates would be a
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vacuous pass rather than a partial one. The two are checked separately, so the message already names
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the right one — report it verbatim rather than diagnosing further:
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```text
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Error: python3 is required but was not found on PATH.
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Error: PyYAML is required but is not importable by python3.
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```
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Without them — or with Bash denied, or on a permission error — work this list
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by hand and file the results under `### Structure` exactly as the script's output would have been:
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- **`name`** present, 1–64 characters, kebab-case (lowercase letters, digits and hyphens; no
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leading, trailing or doubled hyphen), and **matching the skill's directory name** exactly.
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- **`description`** present and non-empty; no unfilled `FILL IN:` placeholder in it. An absent or
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empty description is a **FAIL**, never a silent skip — it is the one field preloaded into every
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session, so a skill without one can never be routed to.
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- **Description length**, measured on the folded YAML value with newlines collapsed to single
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spaces — not on the raw block scalar, which counts indentation. 250 characters SUGGESTION, 400
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FAIL (ADR-0020), 1,024 FAIL (agentskills.io spec).
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- **Body length**, counting everything after the frontmatter's closing `---`. 600 words
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SUGGESTION, 900 FAIL (ADR-0020).
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- **Whole-file ceilings**, counting the file including frontmatter: 500 lines FAIL, 2,770 words
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FAIL (agentskills.io spec). These are a different measurement from the two above — report them
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as separate findings, never merged.
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- **A boundary clause is present** — either the prose form (`do not` / `instead` / `rather than` /
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`not for`) or ADR-0020's compressed `Not <thing> -> <name>` arrow. **SUGGESTION**, not FAIL:
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the absence is deterministic, but whether this skill warrants one is the auditor's call.
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- **Boundary targets resolve** — **FAIL** on a name that resolves to nothing. See the section
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below; resolving these by hand is the one item on this list with a procedure of its own.
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- **Every `references/<file>.md` named in the body exists on disk** — **FAIL**, not a suggestion.
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A dispatch table or "read X" trigger naming a missing file sends the agent nowhere. Ignore
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mentions inside fenced code blocks, and ignore a mention whose own line says the file is gone
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(`removed`, `deleted`, `renamed`, `superseded`, `replaced`, `obsolete`, `deprecated`, `former`,
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`gone`, `no longer`, `used to`) — that is a historical note, not a dispatch entry.
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- **Gotchas discipline**, both **SUGGESTION**. Locate the section by a heading that *is* Gotchas
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(`## Common Gotchas` counts; `## Gotcha handling` and `## Why gotchas matter` do not), running to
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the next heading at the same level or shallower. More than five top-level entries is one
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suggestion; a section over 25% of the body word count is a second, independent one. Count
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entries at column 0 only — an indented child bullet is not an entry — and ignore fenced code
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blocks for both.
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- **No unfilled `FILL IN:` placeholder** anywhere in the body.
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- **Every file in `scripts/`** carries the executable bit and contains no interactive prompt —
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no bare `read`, no `select`, nothing that blocks on a TTY.
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## Resolving boundary targets by hand
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Targets are read from **both** boundary forms. The compressed `Not <thing> -> <name>` arrow and the
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prose form are each parsed *and* target-checked, so a typo in prose phrasing fails exactly as an
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arrow typo does — do not check only the names after an arrow.
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Build the universe by walking up **from the `SKILL.md` under audit**, never from the validator's own
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location. The nearest ancestor holding `plugins/*/.apm/skills/` or `plugins/*/.apm/agents/` is the
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authoring root, falling back to the nearest ancestor holding `.git`. When one is found the universe
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is every skill and agent under `<root>/plugins/*/`, plus the skill's own apm package, plus the
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packages that package declares in its `apm.yml` under `dependencies.apm`. Deployed `.claude/` and
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`.agents/` trees are consulted **only** when no authoring root exists — they are gitignored
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`apm install` output, and reading them would make a fresh clone and a developer machine disagree.
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Three ways to read the result wrong:
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- **A hyphenated name used attributively is not a dangling target.** "Use pre-commit hooks instead
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of ad-hoc scripts" reads as a route to `pre-commit` on wording alone. What separates a route from
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prose is grammar: a route target is terminal — followed by punctuation, a conjunction, or a
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boundary word — whereas a compound modifier is followed by the noun it modifies. A name followed
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by an ordinary noun still *confirms* a route when it exists, but never raises a FAIL on its own.
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- **A SUGGESTION-tier unresolved target is not a FAIL you may promote.** Terminal position alone is
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not evidence of a route: "run `pre-commit` instead", "see `commit-msg`" and "use the clean-up
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instead" are all terminal and all prose. A prose-form target earns a FAIL only when its own
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sentence names another target that *does* resolve; otherwise the script reports it and moves on,
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and so should you. Route notation — `/name` and `-> name` — is exempt and always FAILs, and it is
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the fix to recommend when the author did mean a route.
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- **`INFO boundary-target resolution DID NOT RUN` is not a pass.** The script prints it, and exits
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0, when no universe could be determined for that path — the usual cause being a skill copy
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audited outside its package. Report it as an INFO naming the unchecked targets and re-run against
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the real directory; filing it as clean signs off targets nothing verified.
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## Script-specific failures
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- **`validate-provenance.sh` printed nothing.** That is a pass, not a skip. It also exits 0
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silently when the skill has no `source_keys` and no `references/sources.md` — nothing to
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validate is not a finding.
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- **`vale` reports `0 files`.** Treat the pass as NOT RUN, not as clean, and fall back to full
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Step 3 judgment for the dimensions it would have covered. The bundled `Kyberforge` style is
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scoped by glob in `assets/vale/.vale.ini`; a file outside those globs is silently not linted.
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- **`E100 Runtime error ... does not exist` (exit 2) from `vale-wrap.sh`.** An explicit relative
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`--config` was passed. Pass none: the wrapper locates its own `assets/vale/.vale.ini` from its
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own path, so a resolved script path plus an unresolved config path produces exactly this. Do not
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read this exit code as vale being unavailable — that misreading sends the audit down the
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fallback path while vale was installed and working the whole time.
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- **The `vale` binary is genuinely absent** (`command not found`). Report one INFO naming it, then
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fall back to full Step 3 judgment for the description, body-discipline and patterns dimensions —
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the prefilter's whole coverage. Judge those by rubric rather than dropping them.
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- **A path argument that does not exist is a hard error** in `vale-wrap.sh`, deliberately: bare
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`vale` would fall back to reading stdin and print a clean-looking `0 errors ... in stdin`, which
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the `0 files` guard above does not catch.
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