Borrowing it
Nothing to install: this file belongs to ziniman/ai-instruct. 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/ziniman/ai-instruct/main/CLAUDE.mdgit clone --depth 1 https://github.com/ziniman/ai-instructWrote 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/ziniman/ai-instruct/claude-md)<a href="https://agentmods.dev/instructions/ziniman/ai-instruct/claude-md"><img src="https://agentmods.dev/badge/instructions/ziniman/ai-instruct/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/ziniman/ai-instruct/claude-md"><img src="https://agentmods.dev/badge/instructions/ziniman/ai-instruct/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 | $0.02035 | $0.02035 |
| Opus 5.5 | $0.00814 | $0.00814 |
| Sonnet 5.5 | $0.00407 | $0.00407 |
| Haiku 4.5 | $0.00203 | $0.00203 |
Grade A, and why
ai-instruct 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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 103 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 collection of markdown guides for developers using AI coding assistants. The guides are consumed by other projects (pasted into chat, added to CLAUDE.md, .cursorrules, etc.) - this repo itself is not a web app or library.
The only runnable code is the CLI in bin/init.js, which users run via npx ai-instruct init in their own projects.
CLI
Run locally:
node bin/init.js # standard flow (detect tool, write to ai-docs/)
node bin/init.js --skills # install as Claude Code skills in .claude/skills/
node bin/init.js --skills --user # install in ~/.claude/skills/ (user scope)
Test the published package:
npx ai-instruct init
The CLI has no dependencies - it uses only Node.js built-ins (fs, os, path, readline) plus the global fetch (Node 18+). Do not add external packages.
bin/lib/guides.js is the single source of truth for the guide list (filenames, descriptions, skill names, skill descriptions, section summaries) and for the skill builder that turns a guide into skill files. Both the CLI and the build script import from it.
Plugin and skills (Claude Code)
The repo also publishes itself as a Claude Code plugin. The plugin bundles all 5 guides as skills under skills/<skill-name>/SKILL.md.
skills/is generated byscripts/build-skills.jsfrom the canonical*-guide.mdfiles plus the metadata inbin/lib/guides.js. Do not edit anything underskills/by hand - edit the source guide and rebuild.- The splitting logic (
buildSkillFiles) lives inbin/lib/guides.js, shared by the build script and the CLI. Skills use progressive disclosure: if a guide's single-file skill would exceed 500 lines, the build writesskills/<name>/SKILL.mdwith the frontmatter, the guide header, Section 0 in full, and a linked index, plus oneskills/<name>/references/<slug>.mdper remaining H2 section. The guide's own "Contents" section is replaced by that index. Intra-guide#anchorlinks are rewritten to point at the right reference file. Shorter guides stay a singleSKILL.md. The guides themselves stay single files because they are also used outside Claude Code. - Each index entry needs a one-line "when to read this" summary: the section's
Applies when:line, or an entry in that guide'ssectionSummariesmap inbin/lib/guides.js. The build fails on a missing summary, a stalesectionSummarieskey, or a link to an unknown anchor. - The build deletes and rewrites each
references/directory, so renamed sections never leave orphans.npm run check:skills(scripts/check-skills.js) verifies line limits, that every relative link and anchor resolves, and that every reference file is linked from itsSKILL.md. CI runs both and fails on any diff or untracked file underskills/. skills/is committed to the repo (not gitignored) so users installing via/plugin installget the files without running a build..claude-plugin/plugin.jsonand.claude-plugin/marketplace.jsondescribe the plugin and the marketplace (this repo is its own marketplace, so users can/plugin marketplace add ziniman/ai-instruct).- Versions in those two JSON files are synced from
package.jsonbyscripts/sync-versions.js, which runs automatically as part ofnpm version.
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.
- 3d ago Changed · +3 lines · +363 tokens per session df1284ab9e02
- 4d ago Changed · -8 lines · +244 tokens per session a0710d666ab0
- 1mo ago First seen · 108 lines · 1,428 tokens per session scan A 3f17dbbe19ea
ai-instruct CLAUDE.md is an instructions file published in the GitHub repository ziniman/ai-instruct (29 stars, last pushed 3d ago), licensed Apache-2.0. It adds 2,035 tokens to every session, about $0.0081 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.
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.