chrome-extension SKILL.md skillA

chrome-extension from samber/cc-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add samber/cc-skills/chrome-extension@v1.1.1

Pins v1.1.1 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
samber/cc-skills
Path
skills/chrome-extension/SKILL.md
Versions recorded
5
Latest version
v1.1.1, committed Sep 1, 2026
First version recorded
Mar 30, 2026
Size
19,002 bytes
Repository stars
232
License
MIT

Build Chrome extensions with Manifest V3. Use this skill whenever the user mentions Chrome extension, browser extension, manifest.json, content script, service worker (in extension context), popup, side panel, chrome.runtime, chrome.tabs, chrome.storage, chrome.scripting, or any Chrome extension API. Also trigger when the user wants to inject scripts into web pages, communicate between page and background, bypass CSP from a content script, build an RPC layer over chrome messaging, or publish…

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 Extension Development (Manifest V3)

This skill covers everything needed to build, debug, and publish Chrome extensions with MV3. It is organized as a routing document: read this file first to understand the architecture and decision points, then load the relevant reference file for implementation details.

## Reference files

Read only the reference files relevant to the current task. Each file is self-contained.

| File | When to read |
| --- | --- |
| `references/manifest-v3.md` | Setting up or modifying manifest.json, configuring icons, versioning |
| `references/service-worker.md` | Background logic, lifecycle, state persistence, alarms, events |
| `references/content-scripts.md` | Injecting code into pages, isolated/main world, dynamic injection, SPA handling, orphaning |
| `references/messaging-rpc.md` | Communication between any contexts, typed protocols, RPC layer, async handler patterns |
| `references/ui-surfaces.md` | Popup, options page, side panel, context menus, commands, notifications, omnibox, devtools panel |
| `references/storage.md` | chrome.storage (local/sync/session), quotas, reactive patterns, framework hooks |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add samber/cc-skills/chrome-extension@sha256:1465c8c9fc7a3d43

The line at the top of this page pins the label v1.1.1, 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_sbq7hbq3uvkm6tfr.svg)](https://markdownregistry.com/a/art_sbq7hbq3uvkm6tfr)

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

Versions

The registry has recorded 5 versions of this file, between Mar 30, 2026 and Sep 1, 2026, about one every 39 days.

versioncommittedcommitsizeaudit
v1.1.1 latest2026-09-01 7e64f91 19,002 BA view · diff
v1.1.02026-08-19 3aba328 19,023 BA view · diff
v1.0.22026-08-19 5561835 19,023 BA view · diff
v1.0.22026-04-10 b972bc1 19,025 BA view · diff
v1.0.12026-03-30 c213a86 19,024 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (19002 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 instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

samber/cc-skills · 232 stars · license MIT · pushed 2026-10-01 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_sbq7hbq3uvkm6tfr
GET https://markdownregistry.com/api/v1/resolve?ref=samber/cc-skills/chrome-extension
GET https://markdownregistry.com/api/v1/blob/1465c8c9fc7a3d437866c8c628e1b61d0f040c73a96829390c66c15f23474e61

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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Every file in samber/cc-skills

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