S Hiraoku Synapse A2a
Synapse A2A is a Claude Code plugin for the Build phase that connects Claude Code, Codex, and Gemini through Google’s A2A Protocol via the Synapse multi-agent communication framework.
by s-hiraoku · github.com/s-hiraoku/synapse-a2a
Wire Claude Code, Codex, and Gemini into one Synapse A2A mesh so multiple coding agents can hand off tasks without bespoke glue code.
Add it to Claude Code
Install the plugin in Claude Code. One command, paste-ready.
/plugin install s-hiraoku-synapse-a2a@s-hiraoku/synapse-a2aBuilt to be called by your agent
Skillselion is itself an MCP server. Your agent can pull this entry and a paste-ready install config straight from the API - no copy-paste.
Retrieve this entry with skillselion.get_details("plugin:s-hiraoku/synapse-a2a") and the paste-ready config with skillselion.get_install_config("plugin:s-hiraoku/synapse-a2a").
What it does
Synapse A2A is a Claude Code plugin bundle from s-hiraoku that plugs a solo builder’s stack into a multi-agent communication framework built around Google’s A2A Protocol. Instead of juggling separate prompts and copy-paste between Claude Code, OpenAI Codex, and Gemini, you register this marketplace entry so those agents can coordinate through Synapse’s plugin surface—covering inter-agent routing, conversation history, and operational guardrails described in the repo keywords. It fits indie builders who treat agents as a small team during implementation: one agent drafts, another reviews or runs specialized tooling, and Synapse keeps the handoffs structured. You reach for it when plain single-agent Claude sessions are bottlenecking parallel work, not when you only need one model in one terminal. Complexity is intermediate because you must understand agent roles, protocol semantics, and how each CLI is launched. The catalog positions it under build-phase agent tooling with multi-phase reach into ship and operate when agents remain in the loop post-release.
Highlights
- Google A2A Protocol wiring for Claude Code, Codex, and Gemini
- Synapse framework plugins for inter-agent messaging and session management
- Communication history and safety-oriented multi-agent flows
- Single-plugin bundle (pluginCount: 1) focused on A2A collaboration
Why builders use it
Running Claude, Codex, and Gemini side by side without a shared protocol forces manual context passing and makes multi-agent builds fragile and slow.
After you add the Synapse A2A plugin to Claude Code, your coding agents can collaborate through structured A2A messaging with history and safety-oriented management instead of ad-hoc copy-paste.
At a glance
- Type - Plugin in AI Agents.
- Adoption - 0 installs, 2 stars, 0 votes.
FAQ
Who is Synapse A2A for?
It is for indie developers who run Claude Code together with Codex or Gemini and need structured inter-agent communication instead of manual relaying.
When should I use Synapse A2A?
Use it when you are in active build work and want multiple agents to divide implementation, review, or tooling tasks under the Google A2A Protocol.
How do I add Synapse A2A to my agent?
Register the s-hiraoku/synapse-a2a Claude Code plugin marketplace entry in Claude Code, then configure Synapse and each agent CLI per the repository setup for the bundled plugin.
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