agentlint: Instructions file for Claude Code

CLAUDE.md

agentlint CLAUDE.md is an instructions file for Claude Code from samilozturk/agentlint. It costs 1,809 tokens per session, scanned A, original, MIT.

A repository instruction file for Agentlint, a TypeScript monorepo containing several related packages. It lists setup, build, checking, linting, testing, and architecture details.

In plain words
What is it for?
Use it when installing dependencies, building packages, checking types, running tests, linting, or starting the command-line and MCP tools.
Why use it?
It gives a coding agent the project-specific commands and dependency structure needed to work safely in the repository.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is samilozturk/agentlint's own configuration. It tells Claude Code how to work on agentlint itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything agentlint configures →

Reuse

Borrowing it

Nothing to install: this file belongs to samilozturk/agentlint. 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/samilozturk/agentlint/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/samilozturk/agentlint

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.

agentmods badge for agentlint CLAUDE.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/samilozturk/agentlint/claude-md"><img src="https://agentmods.dev/badge/instructions/samilozturk/agentlint/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.

agentmods 80×15 button for agentlint CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/samilozturk/agentlint/claude-md"><img src="https://agentmods.dev/badge/instructions/samilozturk/agentlint/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,809 This file is loaded in full into every session.
When invoked 1,809 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01809 $0.01809
Opus 5.5 $0.00724 $0.00724
Sonnet 5.5 $0.00362 $0.00362
Haiku 4.5 $0.00181 $0.00181

Measured 1mo ago against content hash 256d5551b467, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agentlint 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 · 149 lines

How it starts

The opening of the file, as written. The whole thing — 149 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.

Build & Development Commands

pnpm install                # install all dependencies
pnpm run build              # build all packages (shared → core → mcp → cli, then tsc --build)
pnpm run typecheck          # type-check all packages via project references
pnpm run lint               # eslint (flat config, ESLint 9+)
pnpm run test               # vitest run (all packages)
pnpm run test:watch         # vitest in watch mode

Run a single test file:

npx vitest run packages/core/tests/quick-check.test.ts

Run tests matching a pattern:

npx vitest run -t "score"

Run the CLI in dev mode:

pnpm run cli                       # interactive TUI
pnpm run cli -- scan --stdout    # standalone command

Run the MCP server in dev mode:

pnpm run mcp:stdio                 # stdio transport
pnpm run mcp:inspector             # MCP inspector UI

Architecture

Strict TypeScript monorepo with four packages. Dependency flow: shared ← core ← mcp and shared ← core ← cli.

  • shared — Types, Zod schemas for MCP tool inputs, artifact conventions (quality metrics, path hints, spec builders), markdown frontmatter parsing (gray-matter).
  • core — Pure business logic: buildGuidelines(), discoverWorkspaceArtifacts(), buildWorkspaceAutofixPlan(), runQuickCheck(), buildMaintenanceSnippet(), scoreArtifact(). Zero state, no LLM, no network, no file writing — read-only analysis returning markdown.
  • mcp — MCP server wrapping core. Factory: createAgentLintMcpServer(). Supports stdio (default) and HTTP transports. Registers 5 tools + resources + prompts. All tools use Zod validation, withToolTimeout(), and read-only annotations.
  • cli — React 19 + Ink terminal UI with Commander.js fallback. Entry logic: TTY + no args → interactive Ink app; args → Commander standalone; no TTY + no args → help text. Commands: init, scan, prompt, score.

Read the full file on GitHub · 149 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.

  1. 1mo ago First seen · 149 lines · 1,809 tokens per session scan A 256d5551b467

Subscribe to this mod's changes

agentlint CLAUDE.md is an instructions file published in the GitHub repository samilozturk/agentlint (32 stars, last pushed 6mo ago), licensed MIT. It adds 1,809 tokens to every session, about $0.0072 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.

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