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lich-skills: Instructions file for Claude Code

CLAUDE.md

lich-skills CLAUDE.md is an instructions file for Claude Code from LichAmnesia/lich-skills. It costs 419 tokens per session, scanned A, original, MIT.

Repository instructions for working on lich-skills, a public open-source collection of Claude Code skills. They describe the project, its skill format, and rules for safe contributions.

In plain words
What is it for?
Use them when adding or changing skills, writing documentation, checking commits, and preparing changes for this MIT-licensed public repository.
Why use it?
They help coding agents avoid committing secrets, using private paths, bypassing checks, or adding files that do not follow the repository’s conventions.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is LichAmnesia/lich-skills's own configuration. It tells Claude Code how to work on lich-skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything lich-skills configures →

not rated 231repo +3 4mo ago A scan 419 tokens original MIT
View source ↗ LichAmnesia/lich-skills
Reuse

Borrowing it

Nothing to install: this file belongs to LichAmnesia/lich-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/LichAmnesia/lich-skills/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/LichAmnesia/lich-skills

Made for: Claude Code.

Wrote 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.

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README.md
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Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/lichamnesia/lich-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/lichamnesia/lich-skills/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 419 This file is loaded in full into every session.
When invoked 419 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00419 $0.00419
Opus 5.5 $0.00168 $0.00168
Sonnet 5.5 $0.00084 $0.00084
Haiku 4.5 $0.00042 $0.00042

Measured 1mo ago against content hash a9b407849f29, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lich-skills CLAUDE.md 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 1mo 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.

CLAUDE.md · 42 lines

What it actually says

CLAUDE.md — lich-skills

Guidance for Claude Code when working inside this repository.

What this repo is

lich-skills is an open-source collection of Claude Code skills. Public, MIT-licensed. Three skills today:

  • spec-driven-dev — Spec → Plan → Build → Test → Review → Ship workflow
  • tavily-search — web search via the Tavily API
  • nano-banana — image generation/edit via Google's Nano Banana 2

Hard rules (repo is public)

  1. No secrets. Never commit API keys, tokens, .env files, service-account JSON. A gitleaks pre-commit hook runs on every commit — do not bypass it with --no-verify.
  2. Env vars only. Skills read credentials from environment variables (TAVILY_API_KEY, GEMINI_API_KEY, etc.). Never hardcode. Use YOUR_API_KEY_HERE in examples.
  3. No private file paths. Example paths in skill docs should be generic (~/project/, ./output.png) — never reference the author's private workspace.
  4. MIT license. All new files inherit MIT. Do not paste copyrighted code from other projects without attribution and license compatibility.

Skill format

Every skill lives at skills/<name>/SKILL.md with YAML frontmatter:

---
name: skill-name
description: One-line trigger description starting with "Use when..."
---

Follow the process-not-prose convention: clear steps, exit criteria, rationalization tables.

Conventional commits

feat|fix|refactor|docs|chore|ci|test + scope. English. Example: feat(tavily): add search skill.

Before every commit

  1. gitleaks detect --config .gitleaks.toml --source . — clean
  2. Skill runs locally (for script-backed skills)
  3. README skills table is up to date
Changes

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.

  1. 1mo ago First seen · 42 lines · 419 tokens per session scan A a9b407849f29

Subscribe to this mod's changes

lich-skills CLAUDE.md is an instructions file published in the GitHub repository LichAmnesia/lich-skills (231 stars, last pushed 4mo ago), licensed MIT. It adds 419 tokens to every session, about $0.0017 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 2026-08-30.

gemini-cli-extension
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