Getting it into your agent
There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.
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.
[](https://agentmods.dev/instructions/queelius/claude-anvil/claude-md)<a href="https://agentmods.dev/instructions/queelius/claude-anvil/claude-md"><img src="https://agentmods.dev/badge/instructions/queelius/claude-anvil/claude-md.svg" alt="Measured on agentmods" 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 | $0.03015 | $0.03015 |
| Opus 5 | $0.01507 | $0.01507 |
| Sonnet 5 | $0.00603 | $0.00603 |
| Haiku 4.5 | $0.00301 | $0.00301 |
Grade B, and why
claude-anvil 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 5d 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
The three authoring plugins (papermill, worldsmith, bookwright) are 38 of the marketplace's agents and are mutually exclusive by project type: a repo is a paper, a novel, or a textbook, never all three. They are therefor How it starts
The opening of the file, as written. The whole thing — 153 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 Is
A Claude Code plugin marketplace (queelius). All plugins are distributed as a single git repo. No build system, test suite, or compiled code — the codebase is Markdown files with YAML frontmatter.
Install: /plugin marketplace add queelius/claude-anvil
Install a plugin: /plugin install repoindex@queelius
| Plugin | Dir | Purpose | Version |
|---|---|---|---|
| papermill | papermill/ |
Academic paper lifecycle: thesis, lit survey, experiment, review, venue, submission | 0.8.2 |
| worldsmith | worldsmith/ |
Documentation-first fiction worldbuilding (the "Silmarillion approach") | 0.13.2 |
| pub-pipeline | pub-pipeline/ |
Publication workflows: R/CRAN/JOSS, Python/PyPI | 0.8.2 |
| mf | mf/ |
Metafunctor site management: blog architecture, content workflows, crier | 1.3.0 |
| repoindex | repoindex/ |
Agent-driven repository intelligence (repo-doctor, repo-polish, repo-explorer) plus five workflow slash commands. MCP-first over a local git catalog | 2.3.1 |
| alex-confidential | locksmith/ |
Confidentiality toolkit: cryptoid, pagevault, gpg encryption | 0.3.0 |
| kdp | kdp/ |
Amazon KDP book publishing: manuscript audit, listing craft, submission workflow | 0.6.0 |
| crier | crier/ |
Cross-post blog content to multiple platforms via the crier CLI | 1.3.0 |
| research-agent | research-agent/ |
Autonomous research agent with parallel sub-agent dispatch and a status/resume/synthesize control surface for managing long runs | 0.5.1 |
| vista | vista/ |
Surface salient research directions from highly-cited papers. Live OpenAlex search, PDF section extraction, structured catalog | 0.2.2 |
| bookwright | bookwright/ |
Non-fiction book authoring: LaTeX + paired computational notebooks, multi-agent drafting/review, design→plan→draft→integrate workflow | 0.2.3 |
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.
- 5d ago First seen · 153 lines · 3,015 tokens per session scan B 7fac2221af52
claude-anvil CLAUDE.md is an instructions file published in the GitHub repository queelius/claude-anvil (2 stars, last pushed 1mo ago), licensed MIT. It adds 3,015 tokens to every session, about $0.0151 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other instructions, from other repositories
platform-skills copilot-instructions.md
Copilot instructions for nitinjain999/platform-skills, covering platform engineering instructions for github copilot, version: 1.40.0, source: https://github.com/nitinjain999/platform-skills, response contract and core principles.
claude-sdd-plugin CLAUDE.md
Claude Code instructions for viamus/claude-sdd-plugin, covering sdd orchestrator — plugin context, fundamental rules, workflow, pipeline (automated by sdd-gen) and plugin structure.
aesth CLAUDE.md
Claude Code instructions for zircote-plugins/aesth, covering claude.md, architecture, key concepts, memory-first design and memory types.
ClaudeCode-Model-Rotator CLAUDE.md
Claude Code instructions for BheeshamKS/ClaudeCode-Model-Rotator, covering claude code multi-provider rotator - project guide, project overview, core architecture, files and key components.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.