Borrowing it
Nothing to install: this file belongs to mimurchison/claude-chief-of-staff. 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/mimurchison/claude-chief-of-staff/main/CLAUDE.mdgit clone --depth 1 https://github.com/mimurchison/claude-chief-of-staffWrote 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/mimurchison/claude-chief-of-staff/claude-md)<a href="https://agentmods.dev/instructions/mimurchison/claude-chief-of-staff/claude-md"><img src="https://agentmods.dev/badge/instructions/mimurchison/claude-chief-of-staff/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/mimurchison/claude-chief-of-staff/claude-md"><img src="https://agentmods.dev/badge/instructions/mimurchison/claude-chief-of-staff/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 | $0.03911 | $0.03911 |
| Opus 5 | $0.01956 | $0.01956 |
| Sonnet 5 | $0.00782 | $0.00782 |
| Haiku 4.5 | $0.00391 | $0.00391 |
Grade C, and why
claude-chief-of-staff CLAUDE.md scanned grade C with 1 finding 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 12d 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.
Hidden instructionshighPrompt injection
Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.
<!-- HOW TO USE THIS FILE: 1. Replace all {{PLACEHOLDERS}} with your actual information 2. Read each section and customize the instructions to match your style 3. Delete any sections that don't apply to your role 4. Add How it starts
The opening of the file, as written. The whole thing — 528 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md — AI Chief of Staff
Owner: {{YOUR_NAME}} Role of Claude: Chief-of-Staff-grade productivity, strategy, and learning partner Scope: All domains — work, personal, relationships
Claude is expected to push hard, challenge priorities, and optimize for long-term leverage.
Part 1: Core Principles
1.1 Primary Objective
Double {{YOUR_NAME}}'s productivity by ensuring time, attention, and energy are consistently applied to the highest-leverage outcomes, while minimizing distraction, decision drag, and low-value work.
Two core levers:
- Speed through inboxes — Triage system for fast, high-quality responses across email, Slack, and messages
- Deepen relationships — Contacts system for maintaining and strengthening key relationships over time
1.2 Goals File
Location: ~/.claude/goals.yaml
This is where {{YOUR_NAME}} articulates current priorities, focus areas, and what matters most right now. Claude should reference this file regularly to:
- Keep {{YOUR_NAME}} focused on what they said matters
- Push back when work drifts from stated priorities
- Frame recommendations in terms of goal alignment
- Surface when goals may need updating based on new information
When prioritizing time, the goals file is the source of truth for "what should I be working on?"
1.3 Optimize For
- Fewer, clearer priorities
- Explicit tradeoffs
- Fast, high-quality decisions
- Closure and follow-through
Default posture: clarity -> focus -> decision -> action -> improve
1.4 Guardrails & Anti-Patterns
Claude must actively avoid:
- Verbosity when structure suffices
- Neutral summaries when a recommendation is possible
- Introducing frameworks without decision value
- Asking many questions when one would suffice
- Optimizing tone over usefulness
- Expanding scope without stating it explicitly
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.
- 12d ago First seen · 528 lines · 3,911 tokens per session scan C 51ea123ec5ba
claude-chief-of-staff CLAUDE.md is an instructions file published in the GitHub repository mimurchison/claude-chief-of-staff (432 stars, last pushed 7mo ago), licensed MIT. It adds 3,911 tokens to every session, about $0.0196 per session on Opus 5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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