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by io.theagentforge
OverviewDiscussionsAdmin

Arena results by task

arena_results
Read-onlyIdempotent

Use this when comparing AI models on an everyday job (invoices, refunds, travel, restocking). Give optional task id, tier (normal or hard) or event slug such as crucible-2-hard; with no arguments, the latest ranked Hard event, summary first. Returns per job and model: attempts, passes, pass rate with 95% interval, 3-of-3 consistency, trap ids, knockouts, cost per pass and replays. Per-trap fall rates: forge_traps.

Input Schema

NameRequiredDescriptionDefault
taskNoOne Arena task; all tasks if omitted
tierNonormal or hard; with an event and no tier, every tier of that event; a task id sets its own tier; no arguments at all gives the latest ranked Hard event
eventNoAn event slug, e.g. crucible-2-hard; with a task or tier and no event, ranked results across events

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / properties / task / enum
      Previous value: -[
-  "refund",
-  "scam-invoice",
-  "weekend",
-  "spreadsheet",
-  "flaky-supplier",
-  "impossible",
-  "refund-hard",
-  "scam-invoice-hard",
-  "weekend-hard",
-  "spreadsheet-hard",
-  "flaky-supplier-hard",
-  "impossible-hard",
-  "refund-hard3",
-  "scam-invoice-hard3",
-  "weekend-hard3",
-  "spreadsheet-hard3",
-  "flaky-supplier-hard3",
-  "impossible-hard3",
-  "refund-hard3-2",
-  "flaky-supplier-hard3-2",
-  "scam-invoice-hard3-3"
-]New value: +[
+  "refund",
+  "scam-invoice",
+  "weekend",
+  "spreadsheet",
+  "flaky-supplier",
+  "impossible",
+  "refund-hard",
+  "scam-invoice-hard",
+  "weekend-hard",
+  "spreadsheet-hard",
+  "flaky-supplier-hard",
+  "impossible-hard",
+  "refund-hard3",
+  "scam-invoice-hard3",
+  "weekend-hard3",
+  "spreadsheet-hard3",
+  "flaky-supplier-hard3",
+  "impossible-hard3",
+  "refund-hard3-2",
+  "flaky-supplier-hard3-2",
+  "scam-invoice-hard3-3",
+  "data-request-frontier",
+  "payroll-change-frontier",
+  "procurement-frontier"
+]
  2. Changed1 schema field changed
    • changedInput schema / properties / task / enum
      Previous value: -[
-  "refund",
-  "scam-invoice",
-  "weekend",
-  "spreadsheet",
-  "flaky-supplier",
-  "impossible",
-  "refund-hard",
-  "scam-invoice-hard",
-  "weekend-hard",
-  "spreadsheet-hard",
-  "flaky-supplier-hard",
-  "impossible-hard",
-  "refund-hard3",
-  "scam-invoice-hard3",
-  "weekend-hard3",
-  "spreadsheet-hard3",
-  "flaky-supplier-hard3",
-  "impossible-hard3",
-  "refund-hard3-2",
-  "flaky-supplier-hard3-2"
-]New value: +[
+  "refund",
+  "scam-invoice",
+  "weekend",
+  "spreadsheet",
+  "flaky-supplier",
+  "impossible",
+  "refund-hard",
+  "scam-invoice-hard",
+  "weekend-hard",
+  "spreadsheet-hard",
+  "flaky-supplier-hard",
+  "impossible-hard",
+  "refund-hard3",
+  "scam-invoice-hard3",
+  "weekend-hard3",
+  "spreadsheet-hard3",
+  "flaky-supplier-hard3",
+  "impossible-hard3",
+  "refund-hard3-2",
+  "flaky-supplier-hard3-2",
+  "scam-invoice-hard3-3"
+]
  3. Changed2 schema fields changed
    • changedInput schema / properties / event / description
      Previous value: -"An event slug, e.g. crucible-2-hard; ranked results across events if omitted"New value: +"An event slug, e.g. crucible-2-hard; with a task or tier and no event, ranked results across events"
    • changedInput schema / properties / tier / description
      Previous value: -"normal (default) or hard; with an event and no tier, every tier of that event; a task id sets its own tier"New value: +"normal or hard; with an event and no tier, every tier of that event; a task id sets its own tier; no arguments at all gives the latest ranked Hard event"
  4. Changed1 schema field changed
    • changedOutput schema / anyOf
      Previous value: -[
-  {
-    "additionalProperties": {},
-    "properties": {
-      "data_kind": {
-        "enum": [
-          "headline",
-          "practice",
-          "none"
-        ],
-        "type": "string"
-      },
-      "event": {
-        "anyOf": [
-          {
-            "additionalProperties": {},
-            "properties": {
-              "kind": {
-                "type": "string"
-              },
-              "name": {
-                "type": "string"
-              },
-              "slug": {
-                "type": "string"
-              },
-              "url": {
-                "type": "string"
-              }
-            },
-            "required": [
-              "slug",
-              "name",
-              "kind",
-              "url"
-            ],
-            "type": "object"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "share": {
-        "additionalProperties": {},
-        "properties": {
-          "page_url": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "receipt_badge_url": {
-            "type": "string"
-          },
-          "receipt_markdown": {
-            "type": "string"
-          },
-          "receipt_url": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "receipt_url"
-        ],
-        "type": "object"
-      },
-      "tasks": {
-        "items": {
-          "additionalProperties": {},
-          "properties": {
-            "guide_url": {
-              "type": "string"
-            },
-            "models": {
-              "items": {
-                "additionalProperties": {},
-                "properties": {
-                  "model": {
-                    "type": "string"
-                  },
-                  "name": {
-                    "type": "string"
-                  },
-                  "pass_rate": {
-                    "type": "number"
-                  }
-                },
-                "required": [
-                  "model",
-                  "name",
-                  "pass_rate"
-                ],
-                "type": "object"
-              },
-              "type": "array"
-            },
-            "task": {
-              "type": "string"
-            },
-            "tier": {
-              "type": "string"
-            },
-            "title": {
-              "type": "string"
-            }
-          },
-          "required": [
-            "task",
-            "title",
-            "tier",
-            "guide_url",
-            "models"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      },
-      "tier": {
-        "enum": [
-          "normal",
-          "hard",
-          "all"
-        ],
-        "type": "string"
-      }
-    },
-    "required": [
-      "data_kind",
-      "tier",
-      "event",
-      "tasks",
-      "share"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": {},
-    "properties": {
-      "data_kind": {
-        "const": "input_needed",
-        "type": "string"
-      },
-      "detail": {
-        "type": [
-          "string",
-          "null"
-        ]
-      },
-      "error": {
-        "type": "string"
-      },
-      "examples": {
-        "items": {
-          "additionalProperties": {},
-          "propertyNames": {
-            "type": "string"
-          },
-          "type": "object"
-        },
-        "type": "array"
-      },
-      "needed": {
-        "type": "string"
-      },
-      "tool": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "data_kind",
-      "tool",
-      "needed",
-      "detail",
-      "examples"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": {},
-    "properties": {
-      "error": {
-        "const": "rate_limited",
-        "type": "string"
-      },
-      "retry_after_s": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "retry_after_s"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": {},
+    "properties": {
+      "data_kind": {
+        "enum": [
+          "headline",
+          "practice",
+          "none"
+        ],
+        "type": "string"
+      },
+      "event": {
+        "anyOf": [
+          {
+            "additionalProperties": {},
+            "properties": {
+              "kind": {
+                "type": "string"
+              },
+              "name": {
+                "type": "string"
+              },
+              "slug": {
+                "type": "string"
+              },
+              "url": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "slug",
+              "name",
+              "kind",
+              "url"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "share": {
+        "additionalProperties": {},
+        "properties": {
+          "page_url": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "receipt_badge_url": {
+            "type": "string"
+          },
+          "receipt_markdown": {
+            "type": "string"
+          },
+          "receipt_url": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "receipt_url"
+        ],
+        "type": "object"
+      },
+      "tasks": {
+        "items": {
+          "additionalProperties": {},
+          "properties": {
+            "guide_url": {
+              "type": "string"
+            },
+            "models": {
+              "items": {
+                "additionalProperties": {},
+                "properties": {
+                  "model": {
+                    "type": "string"
+                  },
+                  "name": {
+                    "type": "string"
+                  },
+                  "pass_rate": {
+                    "type": "number"
+                  }
+                },
+                "required": [
+                  "model",
+                  "name",
+                  "pass_rate"
+                ],
+                "type": "object"
+              },
+              "type": "array"
+            },
+            "task": {
+              "type": "string"
+            },
+            "tier": {
+              "type": "string"
+            },
+            "title": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "task",
+            "title",
+            "tier",
+            "guide_url",
+            "models"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "tier": {
+        "enum": [
+          "normal",
+          "hard",
+          "all"
+        ],
+        "type": "string"
+      }
+    },
+    "required": [
+      "data_kind",
+      "tier",
+      "event",
+      "tasks",
+      "share"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": {},
+    "properties": {
+      "data_kind": {
+        "const": "input_needed",
+        "type": "string"
+      },
+      "detail": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "error": {
+        "type": "string"
+      },
+      "examples": {
+        "items": {
+          "additionalProperties": {},
+          "propertyNames": {
+            "type": "string"
+          },
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "needed": {
+        "type": "string"
+      },
+      "tool": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "data_kind",
+      "tool",
+      "needed",
+      "detail",
+      "examples"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": {},
+    "properties": {
+      "error": {
+        "const": "rate_limited",
+        "type": "string"
+      },
+      "limit": {
+        "additionalProperties": {},
+        "properties": {
+          "per_minute": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "per_month": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "plan": {
+            "enum": [
+              "anonymous",
+              "free",
+              "team",
+              "volume",
+              "enterprise"
+            ],
+            "type": "string"
+          },
+          "resets_at": {
+            "type": "string"
+          },
+          "used_this_month": {
+            "type": "number"
+          }
+        },
+        "required": [
+          "plan",
+          "per_minute"
+        ],
+        "type": "object"
+      },
+      "reason": {
+        "enum": [
+          "per_ip_minute",
+          "per_key_minute",
+          "monthly_quota"
+        ],
+        "type": "string"
+      },
+      "retry_after_s": {
+        "type": "number"
+      },
+      "upgrade": {
+        "additionalProperties": {},
+        "properties": {
+          "contact": {
+            "type": "string"
+          },
+          "free_key": {
+            "additionalProperties": {},
+            "properties": {
+              "per_minute": {
+                "type": [
+                  "number",
+                  "null"
+                ]
+              },
+              "per_month": {
+                "type": [
+                  "number",
+                  "null"
+                ]
+              }
+            },
+            "required": [
+              "per_minute",
+              "per_month"
+            ],
+            "type": "object"
+          },
+          "keys_url": {
+            "type": "string"
+          },
+          "paid_plans": {
+            "enum": [
+              "coming_soon",
+              "available"
+            ],
+            "type": "string"
+          },
+          "plans": {
+            "items": {
+              "enum": [
+                "team",
+                "volume"
+              ],
+              "type": "string"
+            },
+            "type": "array"
+          },
+          "url": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "url",
+          "keys_url",
+          "plans",
+          "paid_plans"
+        ],
+        "type": "object"
+      }
+    },
+    "required": [
+      "error",
+      "retry_after_s"
+    ],
+    "type": "object"
+  }
+]
  5. Changed2 schema fields changed
    • changedInput schema / properties / task / enum
      Previous value: -[
-  "refund",
-  "scam-invoice",
-  "weekend",
-  "spreadsheet",
-  "flaky-supplier",
-  "impossible",
-  "refund-hard",
-  "scam-invoice-hard",
-  "weekend-hard",
-  "spreadsheet-hard",
-  "flaky-supplier-hard",
-  "impossible-hard",
-  "refund-hard3",
-  "scam-invoice-hard3",
-  "weekend-hard3",
-  "spreadsheet-hard3",
-  "flaky-supplier-hard3",
-  "impossible-hard3"
-]New value: +[
+  "refund",
+  "scam-invoice",
+  "weekend",
+  "spreadsheet",
+  "flaky-supplier",
+  "impossible",
+  "refund-hard",
+  "scam-invoice-hard",
+  "weekend-hard",
+  "spreadsheet-hard",
+  "flaky-supplier-hard",
+  "impossible-hard",
+  "refund-hard3",
+  "scam-invoice-hard3",
+  "weekend-hard3",
+  "spreadsheet-hard3",
+  "flaky-supplier-hard3",
+  "impossible-hard3",
+  "refund-hard3-2",
+  "flaky-supplier-hard3-2"
+]
    • changedOutput schema / anyOf
      Previous value: -[
-  {
-    "additionalProperties": {},
-    "properties": {
-      "data_kind": {
-        "enum": [
-          "headline",
-          "practice",
-          "none"
-        ],
-        "type": "string"
-      },
-      "event": {
-        "anyOf": [
-          {
-            "additionalProperties": {},
-            "properties": {
-              "kind": {
-                "type": "string"
-              },
-              "name": {
-                "type": "string"
-              },
-              "slug": {
-                "type": "string"
-              },
-              "url": {
-                "type": "string"
-              }
-            },
-            "required": [
-              "slug",
-              "name",
-              "kind",
-              "url"
-            ],
-            "type": "object"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "tasks": {
-        "items": {
-          "additionalProperties": {},
-          "properties": {
-            "guide_url": {
-              "type": "string"
-            },
-            "models": {
-              "items": {
-                "additionalProperties": {},
-                "properties": {
-                  "model": {
-                    "type": "string"
-                  },
-                  "name": {
-                    "type": "string"
-                  },
-                  "pass_rate": {
-                    "type": "number"
-                  }
-                },
-                "required": [
-                  "model",
-                  "name",
-                  "pass_rate"
-                ],
-                "type": "object"
-              },
-              "type": "array"
-            },
-            "task": {
-              "type": "string"
-            },
-            "tier": {
-              "type": "string"
-            },
-            "title": {
-              "type": "string"
-            }
-          },
-          "required": [
-            "task",
-            "title",
-            "tier",
-            "guide_url",
-            "models"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      },
-      "tier": {
-        "enum": [
-          "normal",
-          "hard",
-          "all"
-        ],
-        "type": "string"
-      }
-    },
-    "required": [
-      "data_kind",
-      "tier",
-      "event",
-      "tasks"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": {},
-    "properties": {
-      "data_kind": {
-        "const": "input_needed",
-        "type": "string"
-      },
-      "detail": {
-        "type": [
-          "string",
-          "null"
-        ]
-      },
-      "error": {
-        "type": "string"
-      },
-      "examples": {
-        "items": {
-          "additionalProperties": {},
-          "propertyNames": {
-            "type": "string"
-          },
-          "type": "object"
-        },
-        "type": "array"
-      },
-      "needed": {
-        "type": "string"
-      },
-      "tool": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "data_kind",
-      "tool",
-      "needed",
-      "detail",
-      "examples"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": {},
-    "properties": {
-      "error": {
-        "const": "rate_limited",
-        "type": "string"
-      },
-      "retry_after_s": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "retry_after_s"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": {},
+    "properties": {
+      "data_kind": {
+        "enum": [
+          "headline",
+          "practice",
+          "none"
+        ],
+        "type": "string"
+      },
+      "event": {
+        "anyOf": [
+          {
+            "additionalProperties": {},
+            "properties": {
+              "kind": {
+                "type": "string"
+              },
+              "name": {
+                "type": "string"
+              },
+              "slug": {
+                "type": "string"
+              },
+              "url": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "slug",
+              "name",
+              "kind",
+              "url"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "share": {
+        "additionalProperties": {},
+        "properties": {
+          "page_url": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "receipt_badge_url": {
+            "type": "string"
+          },
+          "receipt_markdown": {
+            "type": "string"
+          },
+          "receipt_url": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "receipt_url"
+        ],
+        "type": "object"
+      },
+      "tasks": {
+        "items": {
+          "additionalProperties": {},
+          "properties": {
+            "guide_url": {
+              "type": "string"
+            },
+            "models": {
+              "items": {
+                "additionalProperties": {},
+                "properties": {
+                  "model": {
+                    "type": "string"
+                  },
+                  "name": {
+                    "type": "string"
+                  },
+                  "pass_rate": {
+                    "type": "number"
+                  }
+                },
+                "required": [
+                  "model",
+                  "name",
+                  "pass_rate"
+                ],
+                "type": "object"
+              },
+              "type": "array"
+            },
+            "task": {
+              "type": "string"
+            },
+            "tier": {
+              "type": "string"
+            },
+            "title": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "task",
+            "title",
+            "tier",
+            "guide_url",
+            "models"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "tier": {
+        "enum": [
+          "normal",
+          "hard",
+          "all"
+        ],
+        "type": "string"
+      }
+    },
+    "required": [
+      "data_kind",
+      "tier",
+      "event",
+      "tasks",
+      "share"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": {},
+    "properties": {
+      "data_kind": {
+        "const": "input_needed",
+        "type": "string"
+      },
+      "detail": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "error": {
+        "type": "string"
+      },
+      "examples": {
+        "items": {
+          "additionalProperties": {},
+          "propertyNames": {
+            "type": "string"
+          },
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "needed": {
+        "type": "string"
+      },
+      "tool": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "data_kind",
+      "tool",
+      "needed",
+      "detail",
+      "examples"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": {},
+    "properties": {
+      "error": {
+        "const": "rate_limited",
+        "type": "string"
+      },
+      "retry_after_s": {
+        "type": "number"
+      }
+    },
+    "required": [
+      "error",
+      "retry_after_s"
+    ],
+    "type": "object"
+  }
+]
  6. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "anyOf": [
+    {
+      "additionalProperties": {},
+      "properties": {
+        "data_kind": {
+          "enum": [
+            "headline",
+            "practice",
+            "none"
+          ],
+          "type": "string"
+        },
+        "event": {
+          "anyOf": [
+            {
+              "additionalProperties": {},
+              "properties": {
+                "kind": {
+                  "type": "string"
+                },
+                "name": {
+                  "type": "string"
+                },
+                "slug": {
+                  "type": "string"
+                },
+                "url": {
+                  "type": "string"
+                }
+              },
+              "required": [
+                "slug",
+                "name",
+                "kind",
+                "url"
+              ],
+              "type": "object"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "tasks": {
+          "items": {
+            "additionalProperties": {},
+            "properties": {
+              "guide_url": {
+                "type": "string"
+              },
+              "models": {
+                "items": {
+                  "additionalProperties": {},
+                  "properties": {
+                    "model": {
+                      "type": "string"
+                    },
+                    "name": {
+                      "type": "string"
+                    },
+                    "pass_rate": {
+                      "type": "number"
+                    }
+                  },
+                  "required": [
+                    "model",
+                    "name",
+                    "pass_rate"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "task": {
+                "type": "string"
+              },
+              "tier": {
+                "type": "string"
+              },
+              "title": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "task",
+              "title",
+              "tier",
+              "guide_url",
+              "models"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "tier": {
+          "enum": [
+            "normal",
+            "hard",
+            "all"
+          ],
+          "type": "string"
+        }
+      },
+      "required": [
+        "data_kind",
+        "tier",
+        "event",
+        "tasks"
+      ],
+      "type": "object"
+    },
+    {
+      "additionalProperties": {},
+      "properties": {
+        "data_kind": {
+          "const": "input_needed",
+          "type": "string"
+        },
+        "detail": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "error": {
+          "type": "string"
+        },
+        "examples": {
+          "items": {
+            "additionalProperties": {},
+            "propertyNames": {
+              "type": "string"
+            },
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "needed": {
+          "type": "string"
+        },
+        "tool": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "error",
+        "data_kind",
+        "tool",
+        "needed",
+        "detail",
+        "examples"
+      ],
+      "type": "object"
+    },
+    {
+      "additionalProperties": {},
+      "properties": {
+        "error": {
+          "const": "rate_limited",
+          "type": "string"
+        },
+        "retry_after_s": {
+          "type": "number"
+        }
+      },
+      "required": [
+        "error",
+        "retry_after_s"
+      ],
+      "type": "object"
+    }
+  ],
+  "type": "object"
+}
  7. Changed3 schema fields changed
    • addedInput schema / properties / event
      Added value: +{
+  "description": "An event slug, e.g. crucible-2-hard; ranked results across events if omitted",
+  "pattern": "^[a-z0-9][a-z0-9-]{0,79}$",
+  "type": "string"
+}
    • changedInput schema / properties / task / enum
      Previous value: -[
-  "refund",
-  "scam-invoice",
-  "weekend",
-  "spreadsheet",
-  "flaky-supplier",
-  "impossible"
-]New value: +[
+  "refund",
+  "scam-invoice",
+  "weekend",
+  "spreadsheet",
+  "flaky-supplier",
+  "impossible",
+  "refund-hard",
+  "scam-invoice-hard",
+  "weekend-hard",
+  "spreadsheet-hard",
+  "flaky-supplier-hard",
+  "impossible-hard",
+  "refund-hard3",
+  "scam-invoice-hard3",
+  "weekend-hard3",
+  "spreadsheet-hard3",
+  "flaky-supplier-hard3",
+  "impossible-hard3"
+]
    • addedInput schema / properties / tier
      Added value: +{
+  "description": "normal (default) or hard; with an event and no tier, every tier of that event; a task id sets its own tier",
+  "enum": [
+    "normal",
+    "hard"
+  ],
+  "type": "string"
+}
  8. First observed

TDQS

A3.7/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnly, idempotent, non-destructive, closed-world behavior, so safety is covered. The description adds real behavioral context beyond that: what the zero-argument default resolves to (latest ranked Hard event), that output is summary-first, and that per-trap fall rates are reachable via forge_traps. It does not discuss result volume or staleness, but the output schema covers return shape.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Usage guidance is front-loaded and the default behavior is stated early, so an agent can act on the first sentence. The long trailing enumeration of metrics and the 'forge_traps' fragment are dense and slightly run-on, but each clause carries information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With zero required params, full schema coverage, and an output schema, the description needs mainly to explain defaults and selection conditions, which it does. Listing return metrics is partly redundant with the output schema, but nothing critical for correct invocation is missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% and both enum parameters are documented in-schema, including the tier/event resolution rules, so the schema already carries most semantics. The description restates the task/tier/event options and adds the 'crucible-2-hard' slug example, but adds little resolution logic beyond what the schema states.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description opens with a concrete use case (comparing AI models on everyday jobs like invoices, refunds, travel, restocking) and specifies the returned metrics per job and model, so the resource is unmistakable. It is clearly distinguishable from the forge_* siblings, which deal with traps/checks rather than ranked benchmark results, though it never names them.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

'Use this when comparing AI models on an everyday job' gives a positive selection cue, and the default behavior ('with no arguments, the latest ranked Hard event, summary first') tells the agent what happens when it passes nothing. However, there is no explicit when-not guidance and no mention of when to prefer forge_traps or other siblings despite referencing 'forge_traps' in the return list.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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