From a2a-multi-agent
Creates and configures A2A Agent Cards—JSON discovery documents detailing agent identity, capabilities, skills, authentication schemes, and endpoints for agent-to-agent delegation.
npx claudepluginhub orcaqubits/agentic-commerce-skills-plugins --plugin a2a-multi-agentThis skill is limited to using the following tools:
**Fetch live docs**:
Acquire memory dumps from live systems/VMs and analyze with Volatility 3 for processes, networks, DLLs, injections in incident response or malware hunts.
Provides x86-64/ARM disassembly patterns, calling conventions, control flow recognition for static analysis of executables and compiled binaries.
Identifies anti-debugging checks like IsDebuggerPresent, NtQueryInformationProcess in Windows binaries; suggests bypasses via patches/hooks/scripts for malware analysis, CTFs, authorized RE.
Fetch live docs:
https://a2a-protocol.org/latest/specification/ and look for the Agent Card schema sectionsite:github.com a2aproject A2A agent card schema for the JSON Schema definitionsite:github.com a2aproject a2a-samples agent-card for real-world Agent Card examplesThe Agent Card is a JSON document that describes an A2A agent to potential clients. It's the discovery and capability advertisement mechanism — analogous to an OpenAPI spec for REST APIs, but for agent-to-agent communication.
By convention, Agent Cards are served at:
{agent_base_url}/.well-known/agent-card.json
Agents can also be discovered via:
Declares what protocol features the agent supports:
message/stream?Array of skills (capabilities) the agent offers:
Skills help client agents understand what tasks they can delegate.
Declares required authentication via two top-level fields:
apiKey, http with scheme: bearer, oauth2, openIdConnect)[{ "schemeName": [] }])text/plain, application/json, image/png)/.well-known/agent-card.json is accessible from client agentsFetch the specification for the exact Agent Card JSON Schema, all field types, and required vs optional fields before implementing.