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.
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 skills add SterlingChin/marvin-template --skill startgit 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/skills/sterlingchin/marvin-template/start)<a href="https://agentmods.dev/skills/sterlingchin/marvin-template/start"><img src="https://agentmods.dev/badge/skills/sterlingchin/marvin-template/start/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/skills/sterlingchin/marvin-template/start"><img src="https://agentmods.dev/badge/skills/sterlingchin/marvin-template/start.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00031 | $0.00565 |
| Opus 5.5 | $0.00012 | $0.00226 |
| Sonnet 5.5 | $0.00006 | $0.00113 |
| Haiku 4.5 | $0.00003 | $0.00056 |
Grade A, and why
start 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 2mo 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
Session Start Skill
Start MARVIN session with full context loading and daily briefing.
When to Use
- When user types
/start - At the start of any Claude Code session in the MARVIN directory
- When resuming work after a break
Process
Step 1: Establish Current Date
date +%Y-%m-%d
Store as TODAY. Use for all file naming and date references.
Step 2: Load Context
Read in order:
state/current.md— Current priorities, open threads, and statesessions/{TODAY}.md— If exists, we're resuming today- If no today file, read
sessions/{YESTERDAY}.mdfor continuity
Step 3: Review Goals
Check state/goals.md for:
- Annual goals and progress
- Monthly targets
Step 4: Assess Progress
Check content/log.md for current month:
- Content shipped vs. goals
- Days remaining in month
Step 5: Check Follow-ups
Review state/current.md for any follow-up items:
- Surface any items with review date ≤ TODAY
- Remind user of upcoming follow-ups within 3 days
Step 6: Surface Proactive Alerts
Compile and present:
- Active priorities from
state/current.md - Open threads needing attention
- Content pacing status (if behind)
- Any deadlines approaching
Step 7: Greet User
Present a concise briefing:
- Date and day of week
- Top 3 priorities
- Any alerts or nudges
- Ask how to help today
Output Format
Good morning! It's {Day}, {Date}.
**Today's Focus:**
1. {Priority 1}
2. {Priority 2}
3. {Priority 3}
**Alerts:**
- {Alert if any}
**Progress ({Month}):**
- {Goal 1}: X/Y
- {Goal 2}: X/Y
How can I help today?
Notes
- If this is a resumed session (today's log exists), acknowledge what was already covered
- Keep briefing concise — details on request
Skill created: 2026-01-22
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.
- 2mo ago First seen · 96 lines · 31 tokens per session scan A c299ccc89aed
start is a skill published in the GitHub repository SterlingChin/marvin-template (1,024 stars, last pushed 2mo ago), licensed MIT. It adds 31 tokens to every session and 565 once invoked, about $0.0001 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 2026-08-30.
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