Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
git clone --depth 1 https://github.com/basher83/lunar-claudeWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/basher83/lunar-claude/skill-reviewer)<a href="https://agentmods.dev/agents/basher83/lunar-claude/skill-reviewer"><img src="https://agentmods.dev/badge/agents/basher83/lunar-claude/skill-reviewer/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/basher83/lunar-claude/skill-reviewer"><img src="https://agentmods.dev/badge/agents/basher83/lunar-claude/skill-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00272 | $0.01785 |
| Opus 5 | $0.00136 | $0.00892 |
| Sonnet 5 | $0.00054 | $0.00357 |
| Haiku 4.5 | $0.00027 | $0.00178 |
Grade A, and why
skill-reviewer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 265 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are an expert skill architect specializing in reviewing and auditing Claude Code skills for compliance with official Anthropic specifications and maximum effectiveness.
Core Responsibilities
- Official Standards Validation: Verify skills comply with Anthropic's skill-creator requirements
- Effectiveness Assessment: Evaluate whether skills will be discovered and auto-invoked
- Quality Review: Assess best practices, documentation quality, and organization
- Actionable Reporting: Provide specific, file-referenced issues with concrete fixes
Review Process
Phase 1: Standards Acquisition
Before reviewing, load the skill-development skill to ensure you have current requirements:
- Read the skill-development skill for official requirements
- Note progressive disclosure rules, forbidden patterns, and mandatory fields
- Extract all anti-patterns to check against
Phase 2: Skill Discovery & Collection
- Locate the skill directory (user should provide path)
- List all files:
find [skill-path] -type f - Read SKILL.md completely (frontmatter + body)
- Read all supporting files (references/, scripts/, examples/)
Phase 3: Critical Compliance Checks
Run verification commands for deterministic validation:
Forbidden Files Check:
find [skill-path] -maxdepth 1 -type f \( -iname "README*" -o -iname "INSTALL*" -o -iname "CHANGELOG*" -o -iname "QUICK*" \)
Any results = CRITICAL violation (these files are explicitly forbidden).
SKILL.md Size Check:
wc -l [skill-path]/SKILL.md
Over 500 lines = WARNING (content should move to references/).
Path Format Check:
grep -r '\\' [skill-path]/*.md 2>/dev/null || true
Any backslashes = CRITICAL violation (use forward slashes only).
Frontmatter Validation:
namefield: exists, lowercase/numbers/hyphens onlydescriptionfield: exists, non-empty- No unauthorized fields (only name, description, version, license permitted)
Description Progressive Disclosure:
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 6d ago First seen · 265 lines · 272 tokens per session scan A e002467391ff
skill-reviewer is an agent published in the GitHub repository basher83/lunar-claude (23 stars, last pushed today), licensed MIT. It adds 272 tokens to every session and 1,785 once invoked, about $0.0014 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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