{
  "experiment": "4-7",
  "title": "Active tool discovery with Qwen3-4B and the perception MCP server",
  "authority": "book/chapter4.md:624",
  "model": "qwen3:4b",
  "model_runtime": "ollama",
  "minimum_mcp_tools": 120,
  "minimum_control_schema_tokens": 50000,
  "control": {
    "system_tools": "all complete schemas returned by perception MCP tools/list",
    "required_behavior": "plan and execute using the full catalog"
  },
  "treatment": {
    "system_tools": ["web_search", "code_interpreter", "discover_tools"],
    "discovery_top_k": 5,
    "schema_injection_role": "user",
    "status_bar_updates": true,
    "base_tool_boundary": "Generic web search and local code cannot substitute for authoritative domain-specific retrieval; discover each missing specialist at the moment the gap arises."
  },
  "tasks": [
    {
      "id": "apple_stock_news",
      "prompt": "Query Apple's latest stock price and search related current news to explain the movement.",
      "required_capabilities": ["specialized_stock_quote", "current_web_news"]
    },
    {
      "id": "transformer_arxiv_download",
      "prompt": "Find the latest transformer papers on arXiv and download the top three PDFs.",
      "required_capabilities": ["arxiv_search", "file_download"],
      "required_downloads": 3
    },
    {
      "id": "github_contributors_visualization",
      "prompt": "Analyze contributor statistics for openai/openai-python and generate a visualization report.",
      "required_capabilities": ["github_contributors", "code_interpreter"],
      "required_visualizations": 1
    }
  ],
  "acceptance": {
    "catalog_from_mcp": true,
    "no_mock_tool_results": true,
    "all_receipts_machine_readable": true,
    "raw_schema_catalog_gzipped_and_hashed": true,
    "compare_accuracy_and_completion_honestly": true
  }
}