Borrowing it
Nothing to install: this file belongs to Aquaticat/Monochromatic. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Aquaticat/Monochromatic/main/CLAUDE.mdgit clone --depth 1 https://github.com/Aquaticat/MonochromaticWrote 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/aquaticat/monochromatic/claude-md)<a href="https://agentmods.dev/instructions/aquaticat/monochromatic/claude-md"><img src="https://agentmods.dev/badge/instructions/aquaticat/monochromatic/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.
<a href="https://agentmods.dev/instructions/aquaticat/monochromatic/claude-md"><img src="https://agentmods.dev/badge/instructions/aquaticat/monochromatic/claude-md.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 | $0.07791 | $0.07791 |
| Opus 5.5 | $0.03116 | $0.03116 |
| Sonnet 5.5 | $0.01558 | $0.01558 |
| Haiku 4.5 | $0.00779 | $0.00779 |
Grade D, and why
Monochromatic CLAUDE.md scanned grade D with 3 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 14d 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
Never run or have agents run catastrophic commands (`sudo rm -rf /`, Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
Never run or have agents run catastrophic commands (`sudo rm -rf /`, Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
write a scratch `.ts` (`node:child_process`) and run it. The source is not reproduced here
Licensed LGPL-3.0
The repository is licensed LGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 14d ago Changed · +8 lines · +54 tokens per session 63456544f1d1
- 15d ago Changed · +7 lines · +47 tokens per session ddd9026d4d08
- 17d ago Changed · +14 lines · +78 tokens per session cd86a206ccce
- 19d ago Changed · +1 lines · +14 tokens per session b8eb2e4407ed
- 21d ago Changed · +19 lines · +202 tokens per session 617128fe0544
- 23d ago Changed · +12 lines · +82 tokens per session f23af65a317f
- 26d ago Changed · +8 lines · +44 tokens per session 63fe4ecbfeb3
- 28d ago Changed · +2 tokens per session 38a2fcca296b
- 29d ago Changed · -436 lines · -2,464 tokens per session 2a6220c2b10e
- 1mo ago First seen · 1,861 lines · 9,732 tokens per session scan D 3840767a21ec
Monochromatic CLAUDE.md is an instructions file published in the GitHub repository Aquaticat/Monochromatic (5 stars, last pushed 14d ago), licensed LGPL-3.0. It adds 7,791 tokens to every session, about $0.0312 per session on Opus 5.5. A static security scan graded it D with 3 findings (asks for root, recursive force delete, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other instructions, from other repositories
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).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.