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Chrome Ext Messaging

Category: General  ·  Sub-category: general-misc  ·  Last updated:
This skill should be used when implementing messaging between Chrome extension components or when the user asks about inter-process communication in extensions. Trigger when: "extension messaging", "chrome.runtime.sendMessage", "chrome.tabs.sendMessage", "content script messaging", "port.postMessage", "runtime.connect", "Protocol Map", "@webext-core/messaging", "message passing", "extension IPC", "sendMessage vs connect", "async message response", "return true onMessage", "typed messaging", "message schema".
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

All extension contexts are strictly siloed — no shared memory. Communication happens exclusively through async message passing with JSON-serializable data. Choose the right pattern for each use case and enforce type safety through Protocol Maps.

What this skill does

Chrome Ext Messaging is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/chrome-ext-messaging/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Chrome Ext Messaging Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 146,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/chrome-ext-messaging
curl -L https://claudskills.com/skills/chrome-ext-messaging/SKILL.md \
  -o ~/.claude/skills/chrome-ext-messaging/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/chrome-ext-messaging/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/chrome-ext-messaging/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\chrome-ext-messaging\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Chrome Ext Messaging Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/chrome-ext-messaging/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Chrome Ext Messaging skill do?
This skill should be used when implementing messaging between Chrome extension components or when the user asks about inter-process communication in extensions. Trigger when: "extension messaging", "chrome.runtime.sendMessage", "chrome.tabs.sendMessage", "content script messaging", "port.postMessage", "runtime.connect", "Protocol Map", "@webext-core/messaging", "message passing", "extension IPC", "sendMessage vs connect", "async message response", "return true onMessage", "typed messaging", "message schema".
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Chrome Ext Messaging skill?
Use Chrome Ext Messaging when your Claude Code task falls under the General category — specifically in the general misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Chrome Ext Messaging" or describe the task and let Claude pick). Browse related skills at /category/general/.
What is a Claude Code skill and how does the Chrome Ext Messaging skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Chrome Ext Messaging is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
radesjardins. (2026). Chrome Ext Messaging [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/chrome-ext-messaging/
BibTeX
@misc{chrome-ext-messaging-2026,
  author    = {radesjardins},
  title     = {Chrome Ext Messaging [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/chrome-ext-messaging/}
}

Embed this skill

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Badge
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<script>
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<iframe>
<iframe src="https://claudskills.com/embed/chrome-ext-messaging.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Chrome Ext Messaging"></iframe>

Security scan

Grade A · scanned 2026-07-06 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

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