claude-md-writer skillA
claude-md-writer is agent-read markdown (skill) from onewave-ai/claude-skills: Use to create or clean up the CLAUDE.md (or AGENTS.md) file that tells a coding agent how to work in a repo — commands, conventions, architecture, and the traps. Trigger when onboarding an agent to a codebase, when the agent keeps making the same repo-specific mistake, or when the user asks for project instructions, agent rules, or a context file..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# CLAUDE.md Writer A good project instruction file is the difference between an agent that guesses at your conventions and one that matches them on the first try. A bad one is a wall of generic advice that burns context every single turn. ## Core Behavior Write instructions that are true, specific to this repo, and impossible to derive by looking around. Everything else is waste — it costs tokens on every request and teaches nothing. Target length: under 100 lines. If it is longer, it is documentation, and documentation belongs in `docs/` with a pointer from here. ## What Goes In **Commands that are not obvious.** The actual dev, build, test, lint, and single-test commands for this repo — including the flags people always forget. ``` npm run dev # port 3000, needs .env.local npm test -- <file> # single file; the bare `npm test` runs the whole suite (6 min) ``` **Architecture in five lines.** Where the entry point is, where the data layer lives, what talks to what. Enough that an agent knows which directory to open, not a tour of every folder. …
Read the whole file at its exact version.
How to install
mdr add onewave-ai/claude-skills/claude-md-writer@git:20260920.97b5147mdr add onewave-ai/claude-skills/claude-md-writer@sha256:8c301424f3cb8985Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_crbosivtynhsxusl)
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Versions
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4022 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
onewave-ai/claude-skills · 306 stars · license MIT · pushed 2026-09-23 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_crbosivtynhsxusl GET https://markdownregistry.com/api/v1/resolve?ref=onewave-ai/claude-skills/claude-md-writer GET https://markdownregistry.com/api/v1/blob/8c301424f3cb8985d0340bc292818ab4283c1edbd0037909a6b10146373ba759
Your agent does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
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