{
  "slug": "use.mcp_tool_calls_7d",
  "title": "MCP tool calls, trailing 7 days",
  "grade": "observed",
  "unit": "count",
  "value": 365,
  "as_of": "2026-08-14",
  "sql": "SELECT COUNT(*) FROM mcp_calls WHERE method='tools/call' AND ts>=datetime('now','-7 day')",
  "note": "Real tools/call requests to our own /mcp endpoint. The cheapest credible demand evidence for the Jan-31 gate. Logging began 2026-08-13.",
  "history": [
    {
      "period": "2026-08-15",
      "value": 291.0
    }
  ]
}