agent-runtime-impl:cursor.runtime@current

{
  "id": "agent-runtime-impl:cursor.runtime@current",
  "_kind": "AgentRuntimeImpl",
  "_file": "agent-stack/runtime-impls/cursor-runtime-current.yaml",
  "_cluster": "agent-stack",
  "attributes": {
    "displayName": "Cursor Runtime (current)",
    "agentVersionId": "agent-version:cursor@current",
    "subagentDispatchMechanism": "none",
    "subagentChildSessionPolicy": "inline-no-child-session",
    "subagentToolScopePolicy": "inherit-parent",
    "packageRef": "source-ref:cursor-binary",
    "builtInTools": [
      "tool-descriptor:read",
      "tool-descriptor:write",
      "tool-descriptor:edit",
      "tool-descriptor:bash",
      "tool-descriptor:grep",
      "tool-descriptor:web-search"
    ],
    "toolRegistryDiscovery": "static-bundled",
    "hookSockets": [
      "hook-surface:cursor.pre-tool",
      "hook-surface:cursor.post-tool",
      "hook-surface:cursor.user-prompt-submit",
      "hook-surface:cursor.stop",
      "hook-surface:cursor.session-start",
      "hook-surface:cursor.session-end"
    ],
    "internalSessionStateLocation": "~/.cursor/sessions/",
    "sessionFileFormat": "jsonl",
    "sessionFilePathConvention": "~/.cursor/sessions/<session-id>.jsonl",
    "approvalGatingPrimitive": "per-call",
    "subprocessSandboxStrategy": "platform-deferred",
    "runtimeIdentity": "api-key",
    "supportedMCPTransports": [
      "mcp-transport:stdio",
      "mcp-transport:http-sse"
    ],
    "supportsStreaming": true
  },
  "outgoingEdges": [
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "layer:5-agent-runtime",
      "kind": "realizes",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "agent:cursor",
      "kind": "composes",
      "attributes": {
        "role": "runtime"
      }
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "hook-surface:cursor.pre-tool",
      "kind": "exposes",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "hook-surface:cursor.post-tool",
      "kind": "exposes",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "hook-surface:cursor.user-prompt-submit",
      "kind": "exposes",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "hook-surface:cursor.stop",
      "kind": "exposes",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "hook-surface:cursor.session-start",
      "kind": "exposes",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "hook-surface:cursor.session-end",
      "kind": "exposes",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "tool-descriptor:read",
      "kind": "bundles",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "tool-descriptor:write",
      "kind": "bundles",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "tool-descriptor:edit",
      "kind": "bundles",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "tool-descriptor:bash",
      "kind": "bundles",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "tool-descriptor:grep",
      "kind": "bundles",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "tool-descriptor:web-search",
      "kind": "bundles",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "mcp-transport:stdio",
      "kind": "connects",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "capability:mcp-elicitation",
      "kind": "supports",
      "attributes": {
        "versionRange": ">=0.40.0",
        "level": "partial",
        "notes": "TODO: verify Cursor's elicitation support level; as of cataloguing Cursor's MCP client speaks the 2025-03-26 baseline plus selective 2025-06-18 features. Marked partial pending confirmation from https://docs.cursor.com/context/model-context-protocol "
      }
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "capability:mcp-resource-links",
      "kind": "supports",
      "attributes": {
        "versionRange": ">=0.40.0",
        "level": "partial",
        "notes": "TODO: confirm Cursor's handling of resource link payloads from MCP tool results (introduced in MCP 2025-06-18). Marked partial pending review of https://docs.cursor.com/context/model-context-protocol "
      }
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "capability:mcp-stdio",
      "kind": "supports",
      "attributes": {
        "versionRange": "*",
        "level": "full",
        "notes": "Cursor's MCP integration brokers stdio-transport servers configured in the project or user MCP settings. "
      }
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "capability:mcp-structured-tool-output",
      "kind": "supports",
      "attributes": {
        "versionRange": ">=0.40.0",
        "level": "partial",
        "notes": "TODO: confirm whether Cursor's MCP client consumes `structuredContent` payloads or only flattens them to text. "
      }
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "capability:supports-mcp",
      "kind": "supports",
      "attributes": {
        "versionRange": ">=0.40.0",
        "level": "full",
        "notes": "Cursor connects MCP servers via stdio transport. Configured per-project or globally. "
      }
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "env-var:cursor-config-dir",
      "kind": "has_env_var",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "mcp-transport:stdio",
      "kind": "speaks",
      "attributes": {}
    },
    {
      "from": "agent-runtime-impl:cursor.runtime@current",
      "to": "mcp-transport:http-sse",
      "kind": "speaks",
      "attributes": {}
    }
  ],
  "incomingEdges": [
    {
      "from": "agent-version:cursor@current",
      "to": "agent-runtime-impl:cursor.runtime@current",
      "kind": "composed_of",
      "attributes": {
        "role": "runtime"
      }
    },
    {
      "from": "mcp-transport:http-sse",
      "to": "agent-runtime-impl:cursor.runtime@current",
      "kind": "spoken_by",
      "attributes": {}
    },
    {
      "from": "mcp-transport:stdio",
      "to": "agent-runtime-impl:cursor.runtime@current",
      "kind": "spoken_by",
      "attributes": {}
    }
  ]
}