a2aproject/a2a-java

Official Java SDK for the Agent2Agent (A2A) Protocol

Latest release v1.5.0.Final · 3 Nov 2026

5 files for Claude Code, Codex and OpenCode: fix-tck-issue, release-a2a, update-a2a-proto, a2a-java AGENTS.md and 1 more — 1,853 tokens loaded in every session.

Open on GitHub a2aproject.github.io

Instructions

a2a-java AGENTS.md AGENTS.md A 1,850 tok
a2a-java CLAUDE.md CLAUDE.md A 3 tok

Skills

fix-tck-issue .agents/skills/fix-tck-issue/SKILL.md A 40 tok
release-a2a .agents/skills/release-a2a/SKILL.md A 36 tok
update-a2a-proto .agents/skills/update-a2a-proto/SKILL.md A 60 tok

These files are a2aproject/a2a-java's own configuration — they tell Claude Code, Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.