agent-runtime-impl:babysitter.runtime@current

{
  "id": "agent-runtime-impl:babysitter.runtime@current",
  "_kind": "AgentRuntimeImpl",
  "_file": "agent-stack/runtime-impls/babysitter-runtime-current.yaml",
  "_cluster": "agent-stack",
  "attributes": {
    "displayName": "babysitter Runtime (current) — task-effect dispatcher + harness adapters",
    "agentVersionId": "agent-version:babysitter@current",
    "packageRef": "source-ref:babysitter-github",
    "subagentDispatchMechanism": "agent-as-tool",
    "subagentChildSessionPolicy": "persistent-child-session",
    "subagentToolScopePolicy": "explicit-allowlist",
    "builtInTools": [
      "tool-descriptor:bash",
      "tool-descriptor:read",
      "tool-descriptor:write",
      "tool-descriptor:edit",
      "tool-descriptor:grep",
      "tool-descriptor:glob"
    ],
    "toolRegistryDiscovery": "dynamic-extension-loaded",
    "hookSockets": [],
    "internalSessionStateLocation": ".a5c/runs/<runId>/",
    "sessionFileFormat": "event-sourced-jsonl",
    "sessionFilePathConvention": ".a5c/runs/<runId>/journal/<seq>.<ulid>.json",
    "approvalGatingPrimitive": "policy-engine",
    "subprocessSandboxStrategy": "wrapped-shell",
    "runtimeIdentity": "none",
    "supportedMCPTransports": [
      "mcp-transport:stdio",
      "mcp-transport:streamable-http",
      "mcp-transport:http-sse"
    ],
    "supportsStreaming": true,
    "notes": "Babysitter is a process-orchestration runtime, not a chat-loop runtime.\nIt records effects (task / breakpoint / sleep / orchestratorTask /\nsubprocess / hook intrinsics) into the journal and replays them\ndeterministically across iterations. Harness adapters (claude-code,\ncodex, cursor, opencode, gemini-cli) are spawned as subprocesses for\nkind: 'agent' tasks; their working directories are isolated per task.\nBabysitter exposes a built-in MCP server (see\npackages/sdk/src/cli/mcpServeEntry.ts) for tools, and uses its own\nbreakpoint policy engine (packages/sdk/src/breakpoints/) for approval\ngating.\n"
  },
  "outgoingEdges": [
    {
      "from": "agent-runtime-impl:babysitter.runtime@current",
      "to": "layer:5-agent-runtime",
      "kind": "realizes",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:babysitter.runtime@current",
      "to": "agent:babysitter",
      "kind": "composes",
      "attributes": {
        "role": "runtime"
      }
    },
    {
      "from": "agent-runtime-impl:babysitter.runtime@current",
      "to": "tool-descriptor:bash",
      "kind": "bundles",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:babysitter.runtime@current",
      "to": "tool-descriptor:read",
      "kind": "bundles",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:babysitter.runtime@current",
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      "kind": "bundles",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:babysitter.runtime@current",
      "to": "tool-descriptor:edit",
      "kind": "bundles",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:babysitter.runtime@current",
      "to": "tool-descriptor:grep",
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    },
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      "attributes": {}
    },
    {
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      "to": "mcp-transport:stdio",
      "kind": "connects",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:babysitter.runtime@current",
      "to": "mcp-transport:streamable-http",
      "kind": "connects",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:babysitter.runtime@current",
      "to": "mcp-transport:http-sse",
      "kind": "connects",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:babysitter.runtime@current",
      "to": "mcp-transport:stdio",
      "kind": "speaks",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:babysitter.runtime@current",
      "to": "mcp-transport:streamable-http",
      "kind": "speaks",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:babysitter.runtime@current",
      "to": "mcp-transport:http-sse",
      "kind": "speaks",
      "attributes": {}
    }
  ],
  "incomingEdges": [
    {
      "from": "agent-version:babysitter@current",
      "to": "agent-runtime-impl:babysitter.runtime@current",
      "kind": "composed_of",
      "attributes": {
        "role": "runtime"
      }
    },
    {
      "from": "mcp-transport:http-sse",
      "to": "agent-runtime-impl:babysitter.runtime@current",
      "kind": "spoken_by",
      "attributes": {}
    },
    {
      "from": "mcp-transport:stdio",
      "to": "agent-runtime-impl:babysitter.runtime@current",
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      "attributes": {}
    },
    {
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      "to": "agent-runtime-impl:babysitter.runtime@current",
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    }
  ]
}