{
  "title": "Agent Host Protocol",
  "description": "Preview protocol for hosting, sharing, subscribing to, and resuming persistent agent sessions.",
  "slug": "ahp",
  "locale": "en",
  "seoTitle": "Agent Host Protocol compatibility reference — Can My Agent Use",
  "socialTitle": "Agent Host Protocol compatibility",
  "socialDescription": "Preview maturity and session host/client roles for AHP.",
  "llmSummary": "AHP is a preview session host protocol in the VS Code ecosystem. Current claims require precise version and preview qualifiers.",
  "audience": "Architects and engineers evaluating persistent agent sessions.",
  "contentKind": "specification",
  "status": "published",
  "tags": [
    "ahp",
    "sessions",
    "host",
    "protocol"
  ],
  "updated": "2026-08-28T00:00:00.000Z",
  "published": "2026-08-28T00:00:00.000Z",
  "authority": "Microsoft",
  "revision": "0.5.x",
  "maturity": "preview",
  "structure": "Session host and client protocol",
  "sourceId": "S-116",
  "canonicalUrl": "https://code.visualstudio.com/blogs/2026/08/26/agent-host-architecture",
  "summary": "Host persistent agent sessions that clients can subscribe to and resume.",
  "roles": [
    "session-host",
    "client"
  ],
  "aliases": [
    "AHP",
    "Agent Host"
  ],
  "body": "AHP addresses durable agent sessions and client access to those sessions. It is distinct from ACP’s editor-to-coding-agent boundary and from A2A task exchange.\n\nThe research snapshot treats AHP as preview. Compatibility claims should include a precise implementation version and feature flag or preview state until the protocol and host behavior stabilize.",
  "html": "/specs/ahp",
  "markdown": "/specs/ahp.md",
  "json": "/api/v1/specs/ahp.json"
}