Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/bobmatnyc/claude-mpm-skillsnpx agentmods add skills/bobmatnyc/claude-mpm-skills/screenshotWrote 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/bobmatnyc/claude-mpm-skills/screenshot)<a href="https://agentmods.dev/skills/bobmatnyc/claude-mpm-skills/screenshot"><img src="https://agentmods.dev/badge/skills/bobmatnyc/claude-mpm-skills/screenshot/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/bobmatnyc/claude-mpm-skills/screenshot"><img src="https://agentmods.dev/badge/skills/bobmatnyc/claude-mpm-skills/screenshot.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 3 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 265 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 286 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 300 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00016 | $0.02909 |
| Opus 5 | $0.00008 | $0.01455 |
| Sonnet 5 | $0.00003 | $0.00582 |
| Haiku 4.5 | $0.00002 | $0.00291 |
Grade A, and why
screenshot 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 — 453 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Screenshot-Based UI Verification
Visual verification workflow for UI changes to accelerate code review and catch responsive design issues early.
When to Use This Skill
Use this skill when:
- Making any UI changes (components, styling, layout)
- Implementing responsive design
- Creating pull requests with visual changes
- Want to demonstrate UI behavior without reviewers running code locally
- Need to document visual state before/after bug fixes
Why Screenshot Verification Matters
Benefits
- Faster Reviews: Reviewers see changes instantly without local setup
- Documents Design: Creates visual record of design decisions
- Visual Changelog: Historical record of UI evolution
- Catches Responsive Issues: Early detection of mobile/tablet problems
- Reduces Communication: Less back-and-forth about visual changes
- Quality Gate: Forces conscious review of visual output
Problems It Solves
- ❌ "I can't reproduce the layout issue locally"
- ❌ "What does this look like on mobile?"
- ❌ "Is this the intended design?"
- ❌ "How does this compare to the old version?"
- ✅ All answered with screenshots in PR
Required Screenshots
For any PR that changes UI, capture all three viewport sizes:
1. Desktop View (1920x1080)
- Full page screenshot
- Key component close-ups if needed
- Before and after comparisons (for fixes/refactors)
- Different states (default, hover, active, error, loading)
2. Tablet View (768x1024)
- Portrait orientation
- Verify responsive breakpoints
- Touch interaction targets visible
- Menu/navigation in tablet mode
3. Mobile View (375x667)
- Portrait orientation (iPhone 8/SE size - common minimum)
- Touch target sizes visible (minimum 44x44px)
- Scrolling behavior documented
- Mobile menu states
How to Capture Screenshots
Browser DevTools Method
Chrome/Edge DevTools:
- Open DevTools (F12 or Cmd+Option+I)
- Toggle device toolbar (Cmd+Shift+M or Ctrl+Shift+M)
- Select device preset or custom dimensions:
- Desktop: 1920 x 1080
- Tablet: 768 x 1024
- Mobile: 375 x 667
- Capture screenshot:
- Full page: Cmd+Shift+P → "Capture full size screenshot"
- Viewport only: Cmd+Shift+P → "Capture screenshot"
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 453 lines · 16 tokens per session scan A 240f6a2161ce
screenshot is a skill published in the GitHub repository bobmatnyc/claude-mpm-skills (75 stars, last pushed 1mo ago), licensed MIT. It adds 16 tokens to every session and 2,909 once invoked, about $0.0001 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 2026-09-03.
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