docs(a2a): add LangGraph agent card registration guide - #236
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Document the LangGraph A2A registration flow with agent-card discovery/editing steps, add a dedicated A2A agent-card reference page, and wire navigation links. Co-authored-by: Cursor <cursoragent@cursor.com>
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Reviewed by Cursor Bugbot for commit 09a87fa. Configure here.
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Summary
A2A Agent Card on LiteLLMdocs page and include it in the A2A sidebar sectionTest plan
img/providers/langgraph/Note
Low Risk
Documentation-only changes with no runtime, auth, or data-path impact.
Overview
This PR expands A2A agent card documentation and walks LangGraph users through registering and curating an agent card in the gateway.
A new
a2a_agent_cardpage documents which A2A v1.0 card fields and JSON-RPC methods LiteLLM proxies, how discovery/curated cards are served at/a2a/{agent_id}/.well-known/agent.json, and how clients target skills viametadata.skillId. It is wired into the A2A Agent Gateway sidebar.The LangGraph provider guide’s A2A section is reworked into a longer flow: upstream card discovery and editing in the UI, save/verify steps (including a
curlcheck of the proxied card), playground testing, and a manualmessage/sendexample. Cross-links froma2a.mdnow point at LangGraph registration instead of the old gateway-only anchor, and local screenshots are referenced for the card UI steps.Reviewed by Cursor Bugbot for commit 09a87fa. Bugbot is set up for automated code reviews on this repo. Configure here.