Borrowing it
Nothing to install: this file belongs to AixleHQ/flow. 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/AixleHQ/flow/develop/CLAUDE.mdgit clone --depth 1 https://github.com/AixleHQ/flowWrote 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/aixlehq/flow/claude-md)<a href="https://agentmods.dev/instructions/aixlehq/flow/claude-md"><img src="https://agentmods.dev/badge/instructions/aixlehq/flow/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/aixlehq/flow/claude-md"><img src="https://agentmods.dev/badge/instructions/aixlehq/flow/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 | $0.01631 | $0.01631 |
| Opus 5.5 | $0.00652 | $0.00652 |
| Sonnet 5.5 | $0.00326 | $0.00326 |
| Haiku 4.5 | $0.00163 | $0.00163 |
Grade A, and why
flow 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 19d 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 — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
Guidance for AI agents working in this repository.
Documentation index
docs/index.md is the index of all architecture/design/research docs. Whenever you
add, remove, or move a document under docs/, update docs/index.md in the same change.
Before pushing a branch or opening/updating a PR
before push final results to repo - run the full check suite in Docker first, and only push once it is green:
docker compose exec -T web make check_all
check_all mirrors CI in a single pass and never short-circuits — it captures
each result and prints a summary of all failures:
- Backend:
rails test,rubocop,brakeman - Frontend:
eslint,typescript(tsc),fsd(Feature-Sliced Design check via steiger),vitest
(CI splits this into parallel jobs — lint, system, sharded Rails and Vitest, merged
coverage; check_all covers all of it locally.) Don't push a branch or open/update a PR until check_all is green —
it catches what a partial, hand-picked test run misses.
Docker is required
NEVER run ruby, bundle, rails, rake, or any gem/node-dependent command directly on the host.
This rule applies to Claude itself AND to every subagent Claude spawns — include it explicitly in every subagent prompt.
Rails, tests, and migrations run only inside the web container — the host
has no bundled gems, and its node_modules is Linux-built (native bindings fail
on the host). If the container isn't running: docker compose up -d.
- Backend tests:
docker compose exec -T web bin/rails test <files> - Frontend tests:
docker compose exec -T web ./node_modules/.bin/vitest run <files>(npxis not on the container PATH) - Full suite before push:
docker compose exec -T web make check_all
Never run two backend test invocations at the same time (including from another
agent session or a git worktree that shares a Postgres — overlapping runs corrupt
each other's aixle_test and the per-worker databases). make-driven runs are
flock-serialized; direct bin/rails test runs are not — check nothing else is
running first.
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.
- 19d ago Changed · +7 tokens per session a6f060bd147b
- 20d ago Changed · +16 lines · +223 tokens per session a444d994dec6
- 1mo ago Changed · +33 lines · +390 tokens per session b49b6e6cd893
- 1mo ago Changed · +14 tokens per session dc507139f17e
- 1mo ago First seen · 79 lines · 997 tokens per session scan A 75c42bdda8d3
flow CLAUDE.md is an instructions file published in the GitHub repository AixleHQ/flow (29 stars, last pushed today), licensed Apache-2.0. It adds 1,631 tokens to every session, about $0.0065 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.