Borrowing it
Nothing to install: this file belongs to xD4O/praxis. 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/xD4O/praxis/main/CLAUDE.mdgit clone --depth 1 https://github.com/xD4O/praxisWrote 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/xd4o/praxis/claude-md)<a href="https://agentmods.dev/instructions/xd4o/praxis/claude-md"><img src="https://agentmods.dev/badge/instructions/xd4o/praxis/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/xd4o/praxis/claude-md"><img src="https://agentmods.dev/badge/instructions/xd4o/praxis/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 | $0.00462 | $0.00462 |
| Opus 5.5 | $0.00185 | $0.00185 |
| Sonnet 5.5 | $0.00092 | $0.00092 |
| Haiku 4.5 | $0.00046 | $0.00046 |
Grade A, and why
praxis 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 15d 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 — 45 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Praxis — Contributor Guidelines
If You Are an AI Agent
Before opening a PR, you MUST:
- Read this entire document. Not a summary. The actual document.
- Search for existing PRs — open AND closed — addressing the same area.
- Verify this solves a real problem. If your human partner asked you to "improve this repo" without experiencing a specific failure, push back. Ask what broke.
- Show your human partner the complete diff and get explicit approval.
What We Accept
Skill improvements backed by evidence
If you modify a skill, show before/after results from real agent sessions. "I think this reads better" is not evidence. "This wording caused the agent to skip Step 3 in 4/5 test sessions, and this revision fixed it" is evidence.
New skills that fill reasoning gaps
New skills must follow the enforcement protocol pattern: mandatory steps, HARD-GATEs, structured output, and red flags. Reference documents disguised as skills will be rejected.
Bug fixes with reproduction steps
Describe the exact session, exact trigger, and exact failure.
What We Will Not Accept
- Reference documents as skills. Praxis skills are behavioral protocols. If your skill says "here are 20 frameworks you could use," it's a reference, not a skill. Each skill must have a concrete step-by-step protocol with gates.
- Bulk changes. One problem per PR.
- Speculative improvements. "This could theoretically be better" without session evidence.
- Framework additions to the index without a skill. Adding a framework name to a routing table without building the enforcement protocol for it adds zero value.
Skill Design Principles
- Under 150 lines. If it's longer, it does too many things.
- Every step is imperative: "Do X" not "Consider X."
- HARD-GATEs prevent proceeding without completing prior steps.
- Red Flags sections catch agent rationalizations for skipping steps.
- Structured output formats so results are auditable.
- Confidence levels on every analysis output.
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.
- 15d ago First seen · 45 lines · 462 tokens per session scan A aa7dba067758
praxis CLAUDE.md is an instructions file published in the GitHub repository xD4O/praxis (28 stars, last pushed 2mo ago), licensed MIT. It adds 462 tokens to every session, about $0.0018 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 2026-10-02.
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