{
  "version": "1.0",
  "timestamp": "2026-04-24T12:16:09.301Z",
  "phase": "04",
  "phase_name": "matrix-mvp-shared-agent-context-and-context-management",
  "phase_dir": "04-matrix-mvp-shared-agent-context-and-context-management-comma",
  "plan": null,
  "task": null,
  "total_tasks": null,
  "status": "paused",
  "completed_tasks": [
    {"id": 1, "name": "docker-compose config mount + MATRIX_AGENT_REGISTRY_PATH", "status": "done"},
    {"id": 2, "name": "debug logging in sdk/real.py (_stream_agent_events)", "status": "done"},
    {"id": 3, "name": "debug logging in platform-agent service.py", "status": "done"}
  ],
  "remaining_tasks": [
    {"id": 4, "name": "run docker compose up --build and get platform-agent logs with stream_event lines", "status": "not_started"},
    {"id": 5, "name": "analyze logs: content_type and langgraph_node to find where first chunk is lost", "status": "not_started"},
    {"id": 6, "name": "fix in service.py based on findings (filter by node, handle list content, or capture subagent output)", "status": "not_started"}
  ],
  "blockers": [],
  "human_actions_pending": [
    {"action": "run docker compose up --build and reproduce the alphabet/image truncation bug", "context": "Need platform-agent logs with DEBUG level to see stream_event lines", "blocking": true}
  ],
  "decisions": [
    {"decision": "Bug is in platform-agent service.py __astream, not in surfaces bot", "rationale": "Logs show first text chunk already truncated at index=0 level", "phase": "04"},
    {"decision": "deepagents uses dispatcher+subagent architecture", "rationale": "create_deep_agent wraps SubAgentMiddleware with general-purpose subagent", "phase": "04"},
    {"decision": "astream_events v2 processes on_chat_model_stream from ALL nodes without filtering", "rationale": "service.py has no namespace/node filtering", "phase": "04"}
  ],
  "uncommitted_files": [
    "sdk/real.py (debug logging added)",
    "docker-compose.yml (config volume mount added)",
    "config/matrix-agents.example.yaml (label names updated)",
    "external/platform-agent/src/agent/service.py (debug logging added, in submodule)"
  ],
  "next_action": "Run: docker compose up --build. Send a message that triggers the bug (e.g. 'Напомни алфавит' after sending an image). Look for stream_event lines in platform-agent-1 logs. Check content_type and langgraph_node values for truncated responses.",
  "context_notes": "Investigating first-chunk truncation bug in Matrix bot responses. The bug appears when agent uses tools (image analysis) OR when images are in context. Platform-agent uses deepagents framework (dispatcher+subagent pattern). The hypothesis is that on_chat_model_stream events from multiple graph nodes are all forwarded as MsgEventTextChunk without filtering, OR that chunk.content is sometimes a list instead of str causing validation issues. Added logging to confirm. The fix will likely be in service.py: either filter by langgraph_node or handle list content type."
}