Skill Maintenance — Content Quality Auditor

When to Use

Activate when:

• The user asks to audit, review, or check skill quality
• Forge triggers a maintenance cycle
• Before publishing or sharing skills
• After bulk skill creation to verify standards compliance

What This Does

Audits skills in ~/.claude/skills/ against Anthropic's documented best practices for the agent skills open standard. Produces a scored report with actionable findings and patch candidates for Phase 2b auto-remediation.

This skill focuses on content quality (structure, metadata, progressive disclosure). It does NOT measure invocation metrics — that is handled by scorecard.py in skill-forge.

Workflow

Step 1: Determine Scope

Ask the user (or accept from Forge):

• Single skill: audit one skill by name or path
• Full sweep: audit all skills in ~/.claude/skills/

Step 2: Run the Audit

For a single skill:

bash ~/.claude/skills/skill-maintenance/scripts/audit-skill.sh ~/.claude/skills/<skill-name>

For all skills:

bash ~/.claude/skills/skill-maintenance/scripts/run-audit.sh

IMPORTANT: Run scripts via Bash tool. Do NOT read the script files — they execute without loading contents into context, keeping token usage efficient.

Step 3: Interpret Results

The audit scripts output JSON to stdout. Parse the output to understand:

• Per-skill checks: boolean pass/fail for each criterion
• Raw metrics: line counts, file references, code blocks
• Content quality score: 0-100 weighted score

If reviewing the scoring methodology, read references/scoring-rubric.md. If reviewing what each check means and why it matters, read references/audit-criteria.md.

Step 4: Present Findings

For each skill, report:

1. Score (0-100) with category: excellent (80+), good (60-79), needs attention (40-59), critical (<40)
2. Top findings — what passed, what failed, and why it matters
3. Patch candidates — specific improvements ranked by priority (1=quick fix, 3=major rework)

Step 5: Recommend Actions

• Score >= 80: No action needed. Mention any minor improvements.
• Score 40-79: List specific fixes. Offer to apply auto-applicable patches (frontmatter, name fixes).
• Score < 40: Flag as critical. Recommend a focused improvement session.

If the user wants to understand the patch format for Phase 2b integration, read references/patch-format.md.

Output Format

Single Skill (human-readable)

## Skill: <name>
Score: <N>/100 (<category>)

### Checks
- [pass/fail] Frontmatter present and valid
- [pass/fail] Name valid and matches directory
- ...

### Findings
1. <finding with rationale>
2. ...

### Patch Candidates
| Priority | Type | Description |
|----------|------|-------------|
| 1 | add_frontmatter | Missing frontmatter block |
| ... | ... | ... |

Full Sweep (JSON to stdout, summary to stderr)

The run-audit.sh script outputs structured JSON for programmatic consumption and a human-readable summary to stderr. Present both to the user.

Important Notes

• Skills under 60 lines are "simple skills" — they get full marks for directory structure even without subdirs
• The scripts_run_not_read check only applies to skills that have a scripts/ directory
• This skill should score >= 80 against its own rubric (it practices what it preaches)
• Patch candidates with auto_applicable: true are safe to apply without human review
• All other patches require HIL (human-in-the-loop) approval before application

Reference Files