Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/karnstack/flue/claude-mdgit clone --depth 1 https://github.com/karnstack/flueWhat 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 | $0.00351 | $0.00351 |
| Opus 5 | $0.00176 | $0.00176 |
| Sonnet 5 | $0.00070 | $0.00070 |
| Haiku 4.5 | $0.00035 | $0.00035 |
Grade A, and why
flue 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 2d 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.
What it actually says
flue — agent notes
Workflow
mainis protected. Never commit to or merge intomainlocally.- All work happens on a branch (worktrees under
.claude/worktrees/), and lands via a pull request — always, even for one-line fixes. Push the branch, open the PR withgh pr create, and hand the URL back. - pnpm only.
web/is a pnpm workspace (pnpm-lock.yaml,pnpm-workspace.yaml) and there is nopackage-lock.json. Usepnpm install,pnpm add,pnpm run <script>, andpnpm dlxfor one-off binaries. Nevernpm,npxoryarn:npm installwrites apackage-lock.jsonand a flatnode_modulesbeside the pnpm store, and npm's allow-scripts gate leaves esbuild's postinstall unrun, so the vite build instyles.build.test.tsfails for reasons that look nothing like the cause. - Run the affected test surface before pushing:
cd web && pnpm vitest runandpnpm run lintfor web changes,go test ./...for Go,make testfor anything cross-cutting. web'sstyles.build.test.tsis a real vite build and is the guard for the Tailwind prose scanner — comments in scanned web sources can compile stray CSS rules; see the notes at the top ofweb/src/styles.cssbefore writing prose there.
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.
- 2d ago First seen · 23 lines · 351 tokens per session scan A 5ff955a31706
flue CLAUDE.md is an instructions file published in the GitHub repository karnstack/flue (10 stars, last pushed 6d ago), licensed MIT. It adds 351 tokens to every session, about $0.0018 per session on Opus 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
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Instructions for derek-larson14/obsidian-claude-sidebar, covering claude sidebar - agent guide, what this plugin does, two things you can help the user do, step 1: diagnose and step 2a: file a bug report.
liney AGENTS.md
Instructions for everettjf/liney, covering liney repository collaboration guide, 交流语言 / communication language, project overview, repository layout and build and test.
waveloom AGENTS.md
Instructions for Menfre01/waveloom, covering waveloom, 项目概要, 编码规范, 代码审查 and 开发流程.
superset AGENTS.md
AGENTS.md instructions for superset-sh/superset, covering superset monorepo, project structure, exception: shadcn/ui components, database and releases.
starboard CLAUDE.md
Instructions for palamim/starboard, covering claude.md, commands, code style, architecture and non-obvious gotchas (not discoverable by reading the code).