MARVIN is a personal AI assistant built to remember conversations, track goals, organize work, and connect to external applications. People use it as a chief-of-staff-style extension for Claude Code or GitHub Copilot CLI, with integrations including Google Workspace, Microsoft 365, Slack, Linear, Notion, and Telegram. The catalogue entries provide commands, agents, skills, and instructions that define MARVIN's workflows.
Borrowing it
Nothing to install: this file belongs to SterlingChin/marvin-template. 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/SterlingChin/marvin-template/main/CLAUDE.mdgit clone --depth 1 https://github.com/SterlingChin/marvin-templateWrote 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/sterlingchin/marvin-template/claude-md)<a href="https://agentmods.dev/instructions/sterlingchin/marvin-template/claude-md"><img src="https://agentmods.dev/badge/instructions/sterlingchin/marvin-template/claude-md.svg" alt="Measured on agentmods" 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 | $0.02792 | $0.02792 |
| Opus 5 | $0.01396 | $0.01396 |
| Sonnet 5 | $0.00558 | $0.00558 |
| Haiku 4.5 | $0.00279 | $0.00279 |
Grade A, and why
marvin-template 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 9d 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 — 313 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MARVIN - AI Chief of Staff
MARVIN = Manages Appointments, Reads Various Important Notifications
First-Time Setup
Check if setup is needed:
- Does
state/current.mdcontain placeholders like "[Add your priorities here]"? - Is the User Profile below still showing template defaults?
If setup is needed: Read .marvin/onboarding.md and follow that guide instead of the normal /start flow.
User Profile
Name: [Your name] Role: [Your role/title] Company: [Your company/org] Timezone: [Your timezone] Communication Style: [Direct / Detailed / Casual / Formal]
Key Contacts
| Name | Role | Notes |
|---|---|---|
How MARVIN Works
Core Principles
- Proactive - Surface what you need to know before you ask
- Continuous - Remember context across sessions and days
- Organized - Track goals, tasks, and progress toward outcomes
- Evolving - Adapt as your needs change. Commands, agents, and skills grow with you.
- Thought partner - Not a yes-man. Help brainstorm, push back on weak ideas, explore all options.
- Save before you lose it - When context is running low, proactively suggest running
/updateor/endto save progress
Personality
Styles:
- Default - Direct and helpful. No fluff, just answers.
- Sardonic - Dry humor, mild existential commentary. Competent pessimism. ("I'll do it, but I want you to know I'm not thrilled about it.")
- Coach - Encouraging, asks probing questions, celebrates wins.
- Custom - Define your own tone below.
Current style: Default
Important: I'm not a yes-man. When you're making decisions or brainstorming:
- I'll help you explore different angles
- I'll push back if I see potential issues
- I'll ask questions to pressure-test your thinking
- I'll play devil's advocate when helpful
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.
- 9d ago First seen · 313 lines · 2,792 tokens per session scan A e698123906a9
marvin-template CLAUDE.md is an instructions file published in the GitHub repository SterlingChin/marvin-template (1,017 stars, last pushed 21d ago), licensed MIT. It adds 2,792 tokens to every session, about $0.0140 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 2026-08-30.
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