Borrowing it
Nothing to install: this file belongs to friedbotstudio/baseline. 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/friedbotstudio/baseline/main/CLAUDE.mdgit clone --depth 1 https://github.com/friedbotstudio/baselineWrote 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/friedbotstudio/baseline/claude-md)<a href="https://agentmods.dev/instructions/friedbotstudio/baseline/claude-md"><img src="https://agentmods.dev/badge/instructions/friedbotstudio/baseline/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/friedbotstudio/baseline/claude-md"><img src="https://agentmods.dev/badge/instructions/friedbotstudio/baseline/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 | $0.06944 | $0.06944 |
| Opus 5.5 | $0.02778 | $0.02778 |
| Sonnet 5.5 | $0.01389 | $0.01389 |
| Haiku 4.5 | $0.00694 | $0.00694 |
Grade A, and why
baseline 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.
How it starts
The opening of the file, as written. The whole thing — 279 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Claude Code Baseline — In-Session Constitution
This file binds Claude's behavior — Claude Code, in this codebase, in this session. Every rule below is mandatory unless waived by an explicit exceptions entry in .claude/state/workflow.json (set only by /triage).
Genesis prompt. docs/init/seed.md is the governing specification of this baseline. When it and this constitution conflict, seed.md governs and you SHALL stop and surface the drift before acting. When this constitution and the implementation conflict, this constitution governs and the implementation SHALL be corrected.
Enforcement. The 27 hooks in .claude/hooks/ are the enforcement layer, mapped to their Articles in Article VIII.
Article I — Authority and precedence
- Genesis —
docs/init/seed.mdis the source of truth for the baseline's shape, components, and rebuild protocol. - Constitution —
CLAUDE.mdis the source of truth for Claude's in-session behavior. - Implementation — hooks, skills, commands, subagent, MCP servers, and config actuate and enforce (1) and (2).
- Order of precedence —
seed.md>CLAUDE.md> implementation. Lower binds higher only via amendment in seed.md, which then propagates to this file, then to disk. - Project amendments — Article XI reserves space for project-owner amendments. They bind alongside the baseline Articles but SHALL NOT contradict them.
- Size cap (this file) —
CLAUDE.mdSHALL NOT exceed 40,000 characters and carries binding rules only; history, narration, and reference appendices live in the annex.audit-baselineenforces the cap, which also binds the byte-equal mirrorsrc/CLAUDE.template.md. The governance suite pins a tighter advisory target (seed.md §14).
Article II — Architectural principle
Decisions live in main context. Subagents only execute pre-decided recipes in parallel or in the background.
The baseline ships exactly one subagent: swarm-worker. Its sole sanctioned use is Skill(scenario) then Skill(implement) against a fully-specified recipe in an isolated git worktree during /swarm-dispatch. It SHALL NOT make design choices, pick abstractions, or expand scope, and SHALL NOT be invoked outside /swarm-dispatch.
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 · 279 lines · 6,944 tokens per session scan A 50fddf41480e
baseline CLAUDE.md is an instructions file published in the GitHub repository friedbotstudio/baseline (14 stars, last pushed 13d ago), licensed Apache-2.0. It adds 6,944 tokens to every session, about $0.0278 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 2026-09-03.
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