openclaw-a2a-gateway

Install and configure the OpenClaw A2A Gateway plugin for cross-server agent communication. Use when: (1) setting up A2A between two or more OpenClaw instances, (2) user says 'configure A2A', 'set up A2A gateway', 'connect two OpenClaw servers', 'agent-to-agent communication', (3) adding a new A2A peer to an existing setup. Covers: plugin installation, Agent Card configuration, security tokens, peer registration, network setup (Tailscale/LAN), TOOLS.md template for agent awareness, and end-to-end verification.