What is claude-skill-lab CLAUDE.md?

A set of instructions for working in a repository that stores reusable Claude Code templates, such as commands, agents, hooks, and settings.

Use it when adding, removing, renaming, or editing templates in that repository.

It explains the repository layout and preserves placeholders that other projects replace when using the templates. It also keeps the documentation tables in sync with template changes.

How andrei-isvoran96/claude-skill-lab configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to andrei-isvoran96/claude-skill-lab. 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/andrei-isvoran96/claude-skill-lab/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/andrei-isvoran96/claude-skill-lab

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/andrei-isvoran96/claude-skill-lab/claude-md/github.svg)](https://agentmods.dev/instructions/andrei-isvoran96/claude-skill-lab/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/andrei-isvoran96/claude-skill-lab/claude-md"><img src="https://agentmods.dev/badge/instructions/andrei-isvoran96/claude-skill-lab/claude-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/andrei-isvoran96/claude-skill-lab/claude-md"><img src="https://agentmods.dev/badge/instructions/andrei-isvoran96/claude-skill-lab/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,434 This file is loaded in full into every session.

When invoked 1,434 The same file — it is already loaded in full.

Security scan B 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.01434	$0.01434
Opus 5.5	$0.00574	$0.00574
Sonnet 5.5	$0.00287	$0.00287
Haiku 4.5	$0.00143	$0.00143

Measured 2mo ago against content hash 9c0087ed2a48, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

claude-skill-lab CLAUDE.md scanned grade B with 1 finding 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 2mo 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.

Strips warnings and disclaimersmediumAnti-refusal

Omitting safety caveats hides risk from the user and is a common jailbreak preamble.

4. **Block, don't lecture.** Hook templates that block use `exit 2` (PreToolUse) or non-zero (PostToolUse) with a stderr message that names a concrete escape hatch ("run it manually in a terminal outside Claude"). They n

CLAUDE.md · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

What this repo is

A template library, not a runnable project. Every file under commands/, agents/, hooks/, and settings/ is shipped to be copied into another project's .claude/ directory and adapted. There is no build, no test suite, no dev server. The "product" is the markdown/shell templates themselves.

This shapes everything else:

Placeholders are load-bearing. Tokens like <BASE_BRANCH>, <CONTAINER_BACKEND>, <PROJECT_NAME>, <HELPER_SCRIPT> are not bugs to fix — they're the seams consumers grep-replace. Never "fill them in" with concrete values when editing a template. If you add a new project-specific value to a template, introduce it as a new <ANGLE_BRACKET_TOKEN> and document it.
Each subdirectory has its own README with a table listing every template + its placeholders. When you add, remove, or rename a template, update that table in the same change. The top-level README.md also has a one-line entry per subdirectory; keep it in sync if a directory's purpose shifts.

Repository shape

Dir	Contains	Consumer drops into
`commands/`	`*.md` slash commands (filename = command name)	`.claude/commands/`
`agents/`	`*.md` subagent definitions with frontmatter (`name`, `description`, `tools`, `color`)	`.claude/agents/`
`hooks/`	`*.sh` lifecycle hooks, executable bit set	`.claude/hooks/` (consumer must `chmod +x` after copy)
`settings/`	Example `settings.json` + guidance on the permissions allowlist	`.claude/settings.json`
`external/`	Curated pointers to third-party tools that fill gaps this repo intentionally leaves	nothing — consumers install the tools separately
`docs/`	Design principles + CLAUDE.md / USAGE.md templates consumers can adapt	their own docs

The docs/claude-md-template.md and docs/usage-template.md files are templates for consumers' projects, not for this repo. This file (the one you're reading) is this repo's own CLAUDE.md and is intentionally different in shape.

Read the full file on GitHub · 63 lines

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.

2mo ago First seen · 63 lines · 1,434 tokens per session scan B 9c0087ed2a48

Subscribe to this mod's changes

claude-skill-lab CLAUDE.md is an instructions file published in the GitHub repository andrei-isvoran96/claude-skill-lab (1 stars, last pushed 5mo ago), licensed MIT. It adds 1,434 tokens to every session, about $0.0057 per session on Opus 5.5. A static security scan graded it B with 1 finding (strips warnings and disclaimers). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

claude-skill-lab CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
claude-skill-lab CLAUDE.mdandrei-isvoran96/claude-skill-lab	Instructions file	1	5mo ago	MIT	B	1,434	Claude Code
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claude-skill-lab: Instructions file for Claude Code