Borrowing it
Nothing to install: this file belongs to davesheffer/hunch. 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/davesheffer/hunch/main/CLAUDE.mdgit clone --depth 1 https://github.com/davesheffer/hunchWrote 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/davesheffer/hunch/claude-md)<a href="https://agentmods.dev/instructions/davesheffer/hunch/claude-md"><img src="https://agentmods.dev/badge/instructions/davesheffer/hunch/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/davesheffer/hunch/claude-md"><img src="https://agentmods.dev/badge/instructions/davesheffer/hunch/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 | $0.02515 | $0.02515 |
| Opus 5.5 | $0.01006 | $0.01006 |
| Sonnet 5.5 | $0.00503 | $0.00503 |
| Haiku 4.5 | $0.00251 | $0.00251 |
Grade A, and why
hunch 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 — 64 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 is
Hunch is an engineering-memory and architectural-conformance layer: a CLI + MCP server that builds a persistent, git-native reasoning graph (decisions, bugs, constraints, components), delivers the relevant evidence to coding assistants, and checks their changes deterministically. Published as @davesheffer/hunch (hunch binary). Pure TypeScript ESM, Node ≥22.13, no build step at dev time (run via tsx).
Hunch keeps memory true along two spokes: graph≠code (Architectural Conformance / intent-conformance — does the code still satisfy recorded intent?) and, as of v0.39.0, doc≠graph (decision-grounding — does the prose still match the live decision?). The doc≠graph spoke extends to markdown itself (src/core/docanchors.ts): a <!-- hunch:topic <topic> [dec_id] --> marker in AGENTS.md/CLAUDE.md/docs grounds the pre-edit hook with that topic's current decision, and a pinned marker whose decision gets superseded fires deterministic doc-anchor-stale drift (CI-gated in hunch drift, healed via hunch heal). A decision can carry an optional topic anchor (drift-detection key; defaults null, no schema bump, existing graphs load unchanged) with a current/history/rejected query contract. Read-time grounding surfaces a file's topic-anchored decisions on the pre-edit hook (doc-precedence framing: follow the graph, not a stale doc — including what each decision rejected), and the deterministic anchor-stale drift kind fires when a file is still anchored to a SUPERSEDED decision while a current one exists for its topic.
Commands
npm run dev -- <args> # run the CLI from source via tsx (e.g. npm run dev -- doctor)
npm run hunch -- <args> # alias for the above
npm run build # clean + tsc -> dist/ (the published artifact; bin = dist/cli/index.js)
npm run typecheck # tsc --noEmit
npm test # fixture-safe runner over test/*.test.ts
node tooling/run-tests.mjs test/check.test.ts # run a single test file
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 cca40071be32
- 10d ago Changed e4c76c364a2a
- 21d ago Changed 387e75b58c44
- 24d ago Changed a0d57db6a9e0
- 25d ago Changed e1fbf7f43579
- 26d ago Changed · -36 lines · -1,393 tokens per session bd1ba6feb435
- 28d ago Changed · +2 tokens per session 045008589ffa
- 29d ago Changed ff86d1d84528
- 1mo ago Changed · +105 tokens per session 38de9e9ec8c4
- 1mo ago First seen · 100 lines · 3,801 tokens per session scan A 226c0602cd3e
hunch CLAUDE.md is an instructions file published in the GitHub repository davesheffer/hunch (11 stars, last pushed 3d ago), licensed Apache-2.0. It adds 2,515 tokens to every session, about $0.0101 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.
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).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.