What is coding-agent-fabric CLAUDE.md?

A project guide for a TypeScript monorepo—a codebase that holds several related packages in one repository. It records the project layout, commands, coding rules, and testing practices for Claude Code.

Use it when asking Claude Code to work on this TypeScript project, especially to install dependencies, build packages, run Vitest tests, lint, format, or prepare changes for commit.

It gives the coding agent the project context needed to follow the repository’s existing conventions. This reduces guesswork about commands, file names, formatting, and tests.

How yu-iskw/coding-agent-fabric configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to yu-iskw/coding-agent-fabric. 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/yu-iskw/coding-agent-fabric/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/yu-iskw/coding-agent-fabric

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/yu-iskw/coding-agent-fabric/claude-md/github.svg)](https://agentmods.dev/instructions/yu-iskw/coding-agent-fabric/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/yu-iskw/coding-agent-fabric/claude-md"><img src="https://agentmods.dev/badge/instructions/yu-iskw/coding-agent-fabric/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/yu-iskw/coding-agent-fabric/claude-md"><img src="https://agentmods.dev/badge/instructions/yu-iskw/coding-agent-fabric/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,353 This file is loaded in full into every session.

When invoked 1,353 The same file — it is already loaded in full.

Security scan A 0 findings. 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	$0.01353	$0.01353
Opus 5.5	$0.00541	$0.00541
Sonnet 5.5	$0.00271	$0.00271
Haiku 4.5	$0.00135	$0.00135

Measured 1mo ago against content hash 10be1736b733, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

coding-agent-fabric 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 1mo 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.

CLAUDE.md · 120 lines

How it starts

The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.

TypeScript Monorepo - Claude Code Memory

Project Overview

This is a production-ready TypeScript monorepo template using modern tooling:

Package Manager: pnpm (with workspace support)
Runtime: Node.js (see .node-version for current version)
Build System: tsc / pnpm
Linting/Formatting: Trunk (manages ESLint, Prettier, and more)
Testing: Vitest
CI/CD: GitHub Actions

Quick Commands

pnpm install    # Install all dependencies
pnpm build      # Build all packages
pnpm test       # Run all tests via Vitest
pnpm lint       # Run all linters via Trunk
pnpm format     # Auto-format code via Trunk
pnpm clean      # Clean build artifacts

Code Style

Use TypeScript for all code
Follow project ESLint/Prettier configuration (managed via Trunk)
Use functional programming patterns where appropriate
Use PascalCase for classes/interfaces, camelCase for functions/variables
Use kebab-case for file names (e.g., user-service.ts)

Testing

Write tests in tests/ or alongside source files as *.test.ts
Use Vitest for unit and integration tests
Aim for high test coverage on core logic
Run pnpm test before committing

Git Workflow

Create feature branches from main
Run pnpm lint && pnpm test before commits
Commit messages: type(scope): description (e.g., feat(ui): add new button component)
Types: feat, fix, docs, style, refactor, test, chore
Record changes using the manage-changelog skill when changie is available

Architecture

Source code in packages/* or src/ (depending on package structure)
Development scripts and shared config in root
CI/CD workflows in .github/workflows/
Claude Code configuration in .claude/
Document significant design decisions as Architecture Decision Records (ADRs) in docs/adr; use the manage-adr skill when adr is available

Common Gotchas

Always use pnpm instead of npm or yarn
Trunk manages tool versions hermetically - don't install linters globally
The pnpm-lock.yaml file is committed for reproducibility - don't gitignore it
Run trunk install if linters report missing tools

Read the full file on GitHub · 120 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.

1mo ago First seen · 120 lines · 1,353 tokens per session scan A 10be1736b733

Subscribe to this mod's changes

coding-agent-fabric CLAUDE.md is an instructions file published in the GitHub repository yu-iskw/coding-agent-fabric (1 stars, last pushed 28d ago), licensed Apache-2.0. It adds 1,353 tokens to every session, about $0.0054 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 2026-08-31.

Claude Code agent-skills codex-cli coding-agents cursor cursor-ai

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).

microsoft/vscode · 9,715 tokens

coding-agent-fabric: Instructions file for Claude Code