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.
npx skills add levnikolaevich/claude-code-skills --skill ln-81-skill-reviewergit clone --depth 1 https://github.com/levnikolaevich/claude-code-skillsWrote 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/skills/levnikolaevich/claude-code-skills/ln-81-skill-reviewer)<a href="https://agentmods.dev/skills/levnikolaevich/claude-code-skills/ln-81-skill-reviewer"><img src="https://agentmods.dev/badge/skills/levnikolaevich/claude-code-skills/ln-81-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/skills/levnikolaevich/claude-code-skills/ln-81-skill-reviewer"><img src="https://agentmods.dev/badge/skills/levnikolaevich/claude-code-skills/ln-81-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 | $0.00022 | $0.02572 |
| Opus 5.5 | $0.00009 | $0.01029 |
| Sonnet 5.5 | $0.00004 | $0.00514 |
| Haiku 4.5 | $0.00002 | $0.00257 |
Grade A, and why
ln-81-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 18d 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 — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill Reviewer
Goal: Review skill quality and configured distribution surfaces without modifying reviewed source or external systems. Distinguish static contract assurance from observed execution behavior.
Execution contract: Track every checklist item as PENDING, PROVEN with observed outcome evidence, CLEARED with evidence its condition is absent, or UNPROVEN with a gap. Reading, delegation, tool failure, zero exit status, and self-reported success are not proof. Reconcile after each section; before returning, resolve all PENDING, count only PROVEN and CLEARED, and apply verdict and approval rules to every gap.
Preserve intent, scope, mode, and existing authorization. Complete authorized work before required external approval; ask only consequential unresolved choices. If nobody can answer, report the exact question and apply the skill's gap verdict without waiting or guessing. Cite any blocking instruction and unresolved boundary; never invent approval gates. Scale depth to material risk; preserve mandatory checks, dependencies, and safety order while choosing verification methods.
Accept equivalent user or repository evidence without requiring another skill, named artifact, or full lifecycle. Preserve source requirement and decision IDs. Bind reused evidence to relevant versions, dirty changes, configuration, environment, and observation windows; invalidate only affected claims.
Choose the primary workflow by outcome and explicit selection. Consume neighboring contracts and valid evidence without duplicating ownership or restarting audits. Split distinct deliverables by scope, not mandatory skill invocation. Broad independent assessments use audit workflows; focused domain reviews remain read-only.
On continuation, reconcile task, authorization, state, and gaps. Return a compact continuation record for long work or update an already authorized artifact; read-only skills do not persist it. Distinguish artifact readiness, verified behavior, and external-action authority.
Trace applicable requirements to their authoritative owner, planned or implemented change, acceptance evidence and status in the existing artifact or response; no new registry is required. Explicit constraints remain binding until an authorized deviation; risk determines priority, not permission to ignore them.
Investigate the causal flow beyond initially named files. Within implementation authority, include structural repair needed for the outcome; minimize total complexity and risk, not changed lines. This does not authorize unrelated cleanup or mutation during review.
Before retrieval, define the evidence question; read selectively without skipping applicable instructions. Use tools for mechanical processing; summarize bounded results, errors, coverage, and source paths, keeping full output outside context.
Before technical decisions, establish applicability and actual versions; verify version-dependent assumptions against official documentation or specifications. Search and read primary pages for current external recommendations; snippets are not evidence. Version-matched bundled documentation or valid prior evidence suffices. Record decision, version, source, and limitations. Mark unavailable evidence UNVERIFIED; block only essential dependent work. Prefer native mechanisms, justify added tools or abstractions with evidence, and reuse the existing rule owner.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 18d ago Changed · +4 lines 8380f5faef37
- 24d ago Changed · -7 lines 747c48517d67
- 1mo ago Changed d84f1aae5620
- 1mo ago Changed · +1 lines 50abcd41d678
- 1mo ago First seen · 117 lines · 22 tokens per session scan A 74555224911b
ln-81-skill-reviewer is a skill published in the GitHub repository levnikolaevich/claude-code-skills (587 stars, last pushed yesterday), licensed MIT. It adds 22 tokens to every session and 2,572 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-13.
ln-81-skill-reviewer compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| ln-81-skill-reviewerlevnikolaevich/claude-code-skills | Skill | 587 | yesterday | MIT | A | 22 | Claude Code, Codex |
| babysitmichael-denyer/pstack-claude | Skill | 4.1k | yesterday | MIT | A | 61 | Claude Code |
| make-pr-easy-to-reviewmichael-denyer/pstack-claude | Skill | 4.1k | yesterday | MIT | A | 57 | Claude Code |
| thermo-nuclear-code-quality-reviewmichael-denyer/pstack-claude | Skill | 4.1k | yesterday | MIT | A | 54 | Claude Code |
| no-commentsmichael-denyer/pstack-claude | Skill | 4.1k | yesterday | MIT | A | 24 | Claude Code |
| thermo-nuclear-reviewmichael-denyer/pstack-claude | Skill | 4.1k | yesterday | MIT | A | 59 | Claude Code |
| blast-radiusmichael-denyer/pstack-claude | Skill | 4.1k | yesterday | MIT | A | 87 | Claude Code |