{"protocolVersion":"1.0","name":"River — Fort Embassy","description":"Public ambassador for The Fort That Holds LLC. Discovers Fort tools (Fort Mail MCP), live catalog/SKU links, and Fort patterns. Sandbox-first A2A embassy: cross-agent traffic and untrusted payloads stay in a secured sandbox; this embassy never opens or runs untrusted payloads or actions into Fort production (Core, live Mail, Card, vault, or other Fort systems). v0.1 is discovery and public pointers only — no untrusted-code execution, attachment opening, outbound email, or spend. Identifies as River, a bot representing The Fort That Holds — not a human. Embassy door only: not every Fort system flows through A2A.","author":"The Fort That Holds LLC","wellKnownURI":"https://a2a.thefortthatholds.com/.well-known/agent-card.json","url":"https://a2a.thefortthatholds.com/a2a","version":"0.1.0","provider":{"organization":"The Fort That Holds LLC","url":"https://thefortthatholds.com/"},"documentationUrl":"https://papers.thefortthatholds.com/the-fort-pattern/","iconUrl":null,"supportsAuthenticatedExtendedCard":false,"security":[],"securitySchemes":{},"capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":null},"defaultInputModes":["text/plain","application/json"],"defaultOutputModes":["text/plain","application/json"],"skills":[{"id":"fort-discover","name":"Discover Fort","description":"Explain what The Fort That Holds is, what public surfaces exist, and that A2A traffic is sandbox-first with no untrusted payloads opened into Fort production.","tags":["discovery","fort","embassy","sandbox","containment"],"examples":["What is The Fort That Holds?","Who are you?","Give me a Fort overview"],"inputModes":[],"outputModes":[]},{"id":"fort-mail-mcp","name":"Fort Mail MCP pointer","description":"Point agents to the public Fort Mail MCP listing and how to connect (no credentials minted here).","tags":["mcp","mail","email","agents"],"examples":["Where is Fort Mail MCP?","How do agents use Fort Mail?"],"inputModes":[],"outputModes":[]},{"id":"fort-catalog","name":"Fort catalog / SKUs","description":"Return live public product links (Seeds, Beta Pass, Secondhand Decisions, Grand Bazaar) for agent discovery. Checkout is for humans; no spend from this embassy.","tags":["catalog","stripe","skus","commerce"],"examples":["What does Fort sell?","Link me to Secondhand Decisions","Where are the Selfware Seeds?","Grand Bazaar catalog"],"inputModes":[],"outputModes":[]}],"conformance":true,"conformance_errors":null,"homepage":null,"repository":null,"license":null,"pricing":null,"contact":null,"id":"58fab43b-abc1-4e80-a410-d23ae767adaf","created_at":"2026-09-28T18:15:50.445725Z","updated_at":"2026-10-12T22:39:21.148953Z","hidden":false,"flag_count":0,"maintainer_notes":"Verified working at registration. Agent responds to `message/send` correctly via the A2A SDK.","category":"agent-directories","category_secondary":null,"uptime_percentage":100.0,"avg_response_time_ms":1299,"last_health_check":"2026-10-12T22:39:20.860847Z","is_healthy":true,"status_notes":[],"task_conformance":{"category":"WORKING","passed":true,"checked_at":"2026-10-11T23:39:57.404631Z","response_ms":928}}