What is a2a-mod?
a2a-mod is a Claude Code mod by NovusEdge that a2A protocol client for Claude Code: Claude hands tasks to non-Claude worker agents over Agent2Agent and picks up their results. It is listed under Agents & automation and has 1 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | NovusEdge |
| Repository | NovusEdge/a2a-mod |
| Popularity | 1 GitHub stars |
| Category | Agents & automation |
| Security | Review before installing (60/100) |
| Rank | #2,009 of 5,272 Claude Code mods; #152 in Agents & automation |
| License | MIT |
| Last commit | 2026-10-17 |
| Hooks | 6 events |
| Sees | every prompt, mcp__a2a-mod__add_worker calls, mcp__a2a-mod__remove_worker calls, mcp__a2a-mod__send calls, mcp__a2a-mod__task calls, mcp__a2a-mod__workers calls |
| Draws on | ToolUse, ToolResult, AbovePrompt, Pane |
Is a2a-mod safe to install?
a2a-mod scores 60/100 on the MCPMods security check: Review before installing. Things to review: sends data over the network; starts processes outside the sandbox; watches every prompt or event. It passed 4 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| Sends data over the network | Review |
| Starts processes outside the sandbox | Review |
| Writes no files or config | Pass |
| Doesn't read environment variables | Pass |
| Watches every prompt or event | Review |
| Drives Claude (model calls, prompts) | Note |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.clock.after | |
$.clock.every | |
$.clock.now | |
$.clock.sleep | |
$.command.register | |
$.config.list | |
$.fs.read | reads files |
$.http.fetch | network requests |
$.process.run | runs processes |
$.prompt.submit | drives Claude |
$.state.get | |
$.state.set | |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.tool.register | drives Claude |
$.ui.ask | draws interface |
$.ui.close | draws interface |
$.ui.copy | draws interface |
$.ui.focus | draws interface |
$.ui.invalidate | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
$.ui.status | draws interface |
$.ui.toast | draws interface |
How do I install a2a-mod?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/NovusEdge/a2a-mod claude plugin validate ./a2a-mod/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add NovusEdge/a2a-mod && claude plugin install a2a-mod@a2a-mod
Or ask Claude to set it up
Paste this into Claude Code and it installs a2a-mod for you:
Install the "a2a-mod" Claude Code mod from https://github.com/NovusEdge/a2a-mod. Run claude plugin validate on it first and show me what it can access before you enable it.