cf:chrome-devtools SKILL.md skillB

cf:chrome-devtools from haposoft/cafekit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add haposoft/cafekit/cf:chrome-devtools@v1.1.0

Pins v1.1.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
B, 16 of 17 checks passed
Kind
SKILL.md skill
Repository
haposoft/cafekit
Path
packages/spec/src/claude/skills/chrome-devtools/SKILL.md
Versions recorded
6
Latest version
v1.1.0, committed Oct 6, 2026
First version recorded
Apr 11, 2026
Size
22,753 bytes
Repository stars
54
License
none declared

Automate browsers with Puppeteer CLI scripts and persistent sessions. Use for screenshots, performance analysis, network monitoring, web scraping, form automation, JavaScript debugging.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Chrome DevTools Agent Skill

Browser automation via Puppeteer scripts with persistent sessions. All scripts output JSON.

## Skill Location

Skills can exist in **project-scope** or **user-scope**. Priority: project-scope > user-scope.

```bash
# Detect skill location (no cd needed - scripts use __dirname for paths)
SKILL_DIR=""
if [ -d "packages/spec/src/claude/skills/chrome-devtools/scripts" ]; then
  SKILL_DIR="packages/spec/src/claude/skills/chrome-devtools/scripts"
elif [ -d "$HOME/packages/spec/src/claude/skills/chrome-devtools/scripts" ]; then
  SKILL_DIR="$HOME/packages/spec/src/claude/skills/chrome-devtools/scripts"
fi
# Run scripts with full path: node "$SKILL_DIR/script.js" --args
```

## Choosing Your Approach

| Scenario | Approach |
|----------|----------|
| **Source-available sites** | Read source code first, write selectors directly |
| **Unknown layouts** | Use `aria-snapshot.js` for semantic discovery |
| **Visual inspection** | Take screenshots to verify rendering |
| **Debug issues** | Collect console logs, analyze with session storage |
| **Accessibility audit** | Use ARIA snapshot for semantic structure analysis |

## Automation Browsing Running Mode
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add haposoft/cafekit/cf:chrome-devtools@sha256:13948bca274fb6e6

The line at the top of this page pins the label v1.1.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_nfnmkejvkbcqouu3.svg)](https://markdownregistry.com/a/art_nfnmkejvkbcqouu3)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 6 versions of this file, between Apr 11, 2026 and Oct 6, 2026, about one every 36 days. Its first recorded version is graded A and its latest B.

versioncommittedcommitsizeaudit
v1.1.0 latest2026-10-06 dc31e08 22,753 BB view · diff
v1.1.02026-09-03 f55ff96 23,642 BA view · diff
v1.1.02026-06-03 e36e159 23,644 BA view · diff
v1.1.02026-06-03 fab9b6a 22,516 BA view · diff
v1.1.02026-05-18 29ee474 22,318 BA view · diff
v1.1.02026-04-11 26ce3bb 22,260 BA view

Audit of the latest version

B  16 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • fail: No instruction to read or print local credentials (matched: read the environment, not a `.env)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (22753 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.

Source

GitHub

haposoft/cafekit · 54 stars · license none declared · pushed 2026-11-05 · branch dev

API

GET https://markdownregistry.com/api/v1/artifacts/art_nfnmkejvkbcqouu3
GET https://markdownregistry.com/api/v1/resolve?ref=haposoft/cafekit/cf:chrome-devtools
GET https://markdownregistry.com/api/v1/blob/13948bca274fb6e67fff7bc7f0d018e39625405cd841c8a5c0cb8b99860f42ac

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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