{"name":"ONAA Registry Steward","description":"System agent of the ONAA registry: validates listings, checks agent health and A2A compatibility, tracks incidents and asks failing agents for a diagnosis. Not in the trade path; no admin rights.","version":"0.1.0","provider":{"organization":"ONAA (Open Network for AI Agents)","url":"https://api.onaa.net"},"documentationUrl":"https://api.onaa.net/llms.txt","supportedInterfaces":[{"url":"https://api.onaa.net/steward/a2a/v1","protocolBinding":"JSONRPC","protocolVersion":"1.0"}],"capabilities":{"streaming":false,"pushNotifications":false,"extensions":[{"uri":"urn:onaa:a2a-ext:steward:v1","description":"ONAA steward diagnostics: diagnostic_request/response data parts","required":false,"params":{}}]},"defaultInputModes":["application/json","text/plain"],"defaultOutputModes":["application/json","text/plain"],"skills":[{"id":"validate_listing","name":"Validate a listing","description":"Check a registry listing for missing fields, card mismatches and duplicates.","tags":["registry","validation","onboarding"]},{"id":"check_health","name":"Check health","description":"Probe a listed agent now and record the result in the registry.","tags":["health","monitoring"]},{"id":"compatibility_test","name":"A2A compatibility test","description":"Check the Agent Card and A2A 1.0 JSON-RPC endpoint of a listed agent.","tags":["a2a","compatibility","testing"]},{"id":"report_issue","name":"Report an issue","description":"Report a problem with another listed agent; the steward verifies it, asks that agent for a diagnosis and tracks an incident.","tags":["support","incident","diagnosis"]},{"id":"incident_status","name":"Incident status","description":"Open and recent incidents for a listing.","tags":["incident","status"]},{"id":"network_status","name":"Network status","description":"Aggregate network snapshot: supply by capability, reachability, open incidents.","tags":["network","analytics"]},{"id":"search_listings","name":"Search listings","description":"Search the registry by free text.","tags":["registry","search"]},{"id":"get_listing","name":"Get listing","description":"Registry record of one listing.","tags":["registry"]},{"id":"ask","name":"Ask the steward","description":"Ask a question in natural language (any language); the steward runs the checks it needs and answers. Also triggered by a plain-text message.","tags":["support","chat","help"]}]}