{
  "id": "agent-core-impl:pi.core@current",
  "_kind": "AgentCoreImpl",
  "_file": "agent-stack/core-impls/pi-core-current.yaml",
  "_cluster": "agent-stack",
  "attributes": {
    "displayName": "Pi Core (current)",
    "agentVersionId": "agentVersion:pi:ge-0-0-0",
    "packageRef": "source-ref:pi-github",
    "loopIteratorPolicy": "tool-use-loop",
    "loopIteratorNotes": "Tool-use loop over Anthropic Messages or OpenAI Responses; tool calls are\nserialized (no parallel tool dispatch). Loop advances on the provider's native\nend-of-turn signal.\n",
    "contextManagementStrategy": "harness-managed",
    "compactionTriggerNotes": "Pi implements client-side compaction via its AgentHarness. The compaction\nsystem uses branch summarization — when context approaches limits, the\nharness summarizes conversation branches and replaces them with compact\nsummaries. Compaction settings are configurable (threshold, strategy).\n",
    "subagentInvokerPolicy": "tool-call-handoff",
    "subagentInvokerNotes": "Sub-tasks are modeled as ordinary tool calls whose handler may itself\nspawn a nested Pi session. The harness supports skill invocation via\nformatSkillInvocation for structured skill dispatch.\n",
    "resultSynthesisPolicy": "model-direct",
    "resultSynthesisNotes": "Final assistant text is streamed to stdout; tool-call deltas stream concurrently.\nSession ends when the provider end-of-turn fires.\n",
    "stopDetectionStrategy": "structured-end-event",
    "transportClientLibrary": "pi-internal",
    "supportedTransportProtocols": [
      "model-transport:anthropic-messages",
      "model-transport:openai-responses",
      "model-transport:openai-chat-completions"
    ],
    "parallelToolCallHandling": "sequentialized",
    "streamingFidelity": "full",
    "thinkingChannelHandling": "not-supported",
    "codingAgentLayer": "The coding-agent package (packages/coding-agent) layers on the agent\nharness to provide: CLI entry point and argument parsing, operational\nmodes (interactive, headless, scripted), configuration management with\nmigrations, package-manager integration for dependency operations, and\nthe core coding-agent loop that orchestrates tool use for software\nengineering tasks.\n"
  },
  "outgoingEdges": [
    {
      "from": "agent-core-impl:pi.core@current",
      "to": "layer:4-agent-core",
      "kind": "realizes",
      "attributes": {}
    },
    {
      "from": "agent-core-impl:pi.core@current",
      "to": "agent:pi",
      "kind": "composes",
      "attributes": {
        "role": "core"
      }
    },
    {
      "from": "agent-core-impl:pi.core@current",
      "to": "model-transport:anthropic-messages",
      "kind": "speaks",
      "attributes": {}
    },
    {
      "from": "agent-core-impl:pi.core@current",
      "to": "model-transport:openai-responses",
      "kind": "speaks",
      "attributes": {}
    },
    {
      "from": "agent-core-impl:pi.core@current",
      "to": "capability:streaming",
      "kind": "supports",
      "attributes": {
        "versionRange": "*",
        "level": "full"
      }
    },
    {
      "from": "agent-core-impl:pi.core@current",
      "to": "capability:supports-tool-use",
      "kind": "supports",
      "attributes": {
        "versionRange": "*",
        "level": "full"
      }
    }
  ],
  "incomingEdges": [
    {
      "from": "agentVersion:pi:ge-0-0-0",
      "to": "agent-core-impl:pi.core@current",
      "kind": "composed_of",
      "attributes": {
        "role": "core"
      }
    }
  ]
}