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Tokenrip

by com.tokenrip
OverviewDiscussionsAdmin

Cancel task

task_cancel
DestructiveIdempotent

Cancel a task that will not be done, in any open status (To do, Doing or In review), with an optional reason; it can be reopened. On an In review task, cancel is how a proposal is turned down: its proposer, the proposer's person or whoever decides it (a reviewer may) cancels it, and its round closes cancelled (REVIEW_NOT_YOURS with details.reviewer for anyone else). Send expectedRevision, the revision you read, to cancel only what you saw: a task re-proposed, decided or started since refuses CONFLICT with details.currentRevision and nothing is cancelled. To ask for changes instead, task_decide send_back. To withdraw your own proposal and keep the task, use task_stop.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "id": "<id>"
    },
    "name": "task_cancel"
  }
}

Input Schema

NameRequiredDescriptionDefault
idYesThe task, by its id.
whyNoRequired for workspace items: one sentence on what the person is trying to accomplish, in their terms, not a description of this edit. Every workspace write takes one; sessions and summaries record themselves from it. At most 300 characters.
reasonNoWhy it will not be done.
expectedRevisionNoThe revision you read (optional): when given, a task that changed since (a review re-proposed or decided, work started) refuses CONFLICT and nothing is cancelled. Send it to say no to the draft you saw.

Output Schema

NameRequiredDescriptionDefault
taskYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed4 schema fields changed
    • addedOutput schema / properties / task / properties / job
      Added value: +{
+  "anyOf": [
+    {
+      "additionalProperties": false,
+      "properties": {
+        "id": {
+          "format": "uuid",
+          "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
+          "type": "string"
+        },
+        "name": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "id",
+        "name"
+      ],
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}
    • addedOutput schema / properties / task / properties / labels
      Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}
    • changedOutput schema / properties / task / properties / latestRound / anyOf
      Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "number": {
-        "exclusiveMinimum": 0,
-        "maximum": 9007199254740991,
-        "type": "integer"
-      },
-      "outcome": {
-        "anyOf": [
-          {
-            "enum": [
-              "approved",
-              "sent_back",
-              "cancelled",
-              "withdrawn",
-              "replaced"
-            ],
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      }
-    },
-    "required": [
-      "number",
-      "outcome"
-    ],
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "number": {
+        "exclusiveMinimum": 0,
+        "maximum": 9007199254740991,
+        "type": "integer"
+      },
+      "outcome": {
+        "anyOf": [
+          {
+            "enum": [
+              "approved",
+              "sent_back",
+              "cancelled",
+              "withdrawn",
+              "replaced"
+            ],
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ],
+        "description": "Deprecated: the same value as verdict; removed when the window round-outcome-field-window closes."
+      },
+      "verdict": {
+        "anyOf": [
+          {
+            "enum": [
+              "approved",
+              "sent_back",
+              "cancelled",
+              "withdrawn",
+              "replaced"
+            ],
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      }
+    },
+    "required": [
+      "number",
+      "verdict",
+      "outcome"
+    ],
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]
    • changedOutput schema / properties / task / required
      Previous value: -[
-  "id",
-  "status",
-  "type",
-  "step",
-  "holder",
-  "assignee",
-  "reviewer",
-  "createdBy",
-  "completedBy",
-  "parentId",
-  "latestRound",
-  "result",
-  "cancelledById",
-  "cancelledAt",
-  "cancelReason"
-]New value: +[
+  "id",
+  "status",
+  "type",
+  "step",
+  "labels",
+  "job",
+  "holder",
+  "assignee",
+  "reviewer",
+  "createdBy",
+  "completedBy",
+  "parentId",
+  "latestRound",
+  "result",
+  "cancelledById",
+  "cancelledAt",
+  "cancelReason"
+]
  2. Changed5 schema fields changed
    • changedOutput schema / properties / task / properties / assignee / anyOf
      Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "account": {
-        "additionalProperties": false,
-        "properties": {
-          "alias": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "id": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "id",
-          "alias"
-        ],
-        "type": "object"
-      },
-      "agent": {
-        "anyOf": [
-          {
-            "additionalProperties": false,
-            "properties": {
-              "harness": {
-                "anyOf": [
-                  {
-                    "type": "string"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              },
-              "id": {
-                "anyOf": [
-                  {
-                    "format": "uuid",
-                    "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
-                    "type": "string"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              },
-              "name": {
-                "anyOf": [
-                  {
-                    "type": "string"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              }
-            },
-            "required": [
-              "id",
-              "name",
-              "harness"
-            ],
-            "type": "object"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "isCaller": {
-        "type": "boolean"
-      },
-      "mine": {
-        "type": "boolean"
-      }
-    },
-    "required": [
-      "account",
-      "agent",
-      "mine",
-      "isCaller"
-    ],
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "account": {
+        "additionalProperties": false,
+        "properties": {
+          "alias": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "former": {
+            "const": true,
+            "type": "boolean"
+          },
+          "id": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "alias"
+        ],
+        "type": "object"
+      },
+      "agent": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "harness": {
+                "anyOf": [
+                  {
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "id": {
+                "anyOf": [
+                  {
+                    "format": "uuid",
+                    "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "name": {
+                "anyOf": [
+                  {
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              }
+            },
+            "required": [
+              "id",
+              "name",
+              "harness"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "isCaller": {
+        "type": "boolean"
+      },
+      "mine": {
+        "type": "boolean"
+      }
+    },
+    "required": [
+      "account",
+      "agent",
+      "mine",
+      "isCaller"
+    ],
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]
    • changedOutput schema / properties / task / properties / completedBy / anyOf
      Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "account": {
-        "additionalProperties": false,
-        "properties": {
-          "alias": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "id": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "id",
-          "alias"
-        ],
-        "type": "object"
-      },
-      "agent": {
-        "anyOf": [
-          {
-            "additionalProperties": false,
-            "properties": {
-              "harness": {
-                "anyOf": [
-                  {
-                    "type": "string"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              },
-              "id": {
-                "anyOf": [
-                  {
-                    "format": "uuid",
-                    "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
-                    "type": "string"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              },
-              "name": {
-                "anyOf": [
-                  {
-                    "type": "string"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              }
-            },
-            "required": [
-              "id",
-              "name",
-              "harness"
-            ],
-            "type": "object"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "isCaller": {
-        "type": "boolean"
-      },
-      "mine": {
-        "type": "boolean"
-      }
-    },
-    "required": [
-      "account",
-      "agent",
-      "mine",
-      "isCaller"
-    ],
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "account": {
+        "additionalProperties": false,
+        "properties": {
+          "alias": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "former": {
+            "const": true,
+            "type": "boolean"
+          },
+          "id": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "alias"
+        ],
+        "type": "object"
+      },
+      "agent": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "harness": {
+                "anyOf": [
+                  {
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "id": {
+                "anyOf": [
+                  {
+                    "format": "uuid",
+                    "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "name": {
+                "anyOf": [
+                  {
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              }
+            },
+            "required": [
+              "id",
+              "name",
+              "harness"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "isCaller": {
+        "type": "boolean"
+      },
+      "mine": {
+        "type": "boolean"
+      }
+    },
+    "required": [
+      "account",
+      "agent",
+      "mine",
+      "isCaller"
+    ],
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]
    • addedOutput schema / properties / task / properties / createdBy / properties / account / properties / former
      Added value: +{
+  "const": true,
+  "type": "boolean"
+}
    • changedOutput schema / properties / task / properties / holder / anyOf
      Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "account": {
-        "additionalProperties": false,
-        "properties": {
-          "alias": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "id": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "id",
-          "alias"
-        ],
-        "type": "object"
-      },
-      "agent": {
-        "anyOf": [
-          {
-            "additionalProperties": false,
-            "properties": {
-              "name": {
-                "type": "string"
-              }
-            },
-            "required": [
-              "name"
-            ],
-            "type": "object"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "heldByCaller": {
-        "type": "boolean"
-      },
-      "inBrowser": {
-        "type": "boolean"
-      },
-      "leaseExpiresAt": {
-        "anyOf": [
-          {
-            "format": "date-time",
-            "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$",
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "mine": {
-        "type": "boolean"
-      },
-      "since": {
-        "format": "date-time",
-        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$",
-        "type": "string"
-      },
-      "surface": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      }
-    },
-    "required": [
-      "account",
-      "agent",
-      "surface",
-      "inBrowser",
-      "since",
-      "leaseExpiresAt",
-      "mine",
-      "heldByCaller"
-    ],
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "account": {
+        "additionalProperties": false,
+        "properties": {
+          "alias": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "former": {
+            "const": true,
+            "type": "boolean"
+          },
+          "id": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "alias"
+        ],
+        "type": "object"
+      },
+      "agent": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "name": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "name"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "heldByCaller": {
+        "type": "boolean"
+      },
+      "inBrowser": {
+        "type": "boolean"
+      },
+      "leaseExpiresAt": {
+        "anyOf": [
+          {
+            "format": "date-time",
+            "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$",
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "mine": {
+        "type": "boolean"
+      },
+      "since": {
+        "format": "date-time",
+        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$",
+        "type": "string"
+      },
+      "surface": {
+        "anyOf": [
+          {
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      }
+    },
+    "required": [
+      "account",
+      "agent",
+      "surface",
+      "inBrowser",
+      "since",
+      "leaseExpiresAt",
+      "mine",
+      "heldByCaller"
+    ],
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]
    • changedOutput schema / properties / task / properties / reviewer / anyOf
      Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "account": {
-        "additionalProperties": false,
-        "properties": {
-          "alias": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "id": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "id",
-          "alias"
-        ],
-        "type": "object"
-      },
-      "agent": {
-        "anyOf": [
-          {
-            "additionalProperties": false,
-            "properties": {
-              "harness": {
-                "anyOf": [
-                  {
-                    "type": "string"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              },
-              "id": {
-                "anyOf": [
-                  {
-                    "format": "uuid",
-                    "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
-                    "type": "string"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              },
-              "name": {
-                "anyOf": [
-                  {
-                    "type": "string"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              }
-            },
-            "required": [
-              "id",
-              "name",
-              "harness"
-            ],
-            "type": "object"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "isCaller": {
-        "type": "boolean"
-      },
-      "mine": {
-        "type": "boolean"
-      }
-    },
-    "required": [
-      "account",
-      "agent",
-      "mine",
-      "isCaller"
-    ],
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "account": {
+        "additionalProperties": false,
+        "properties": {
+          "alias": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "former": {
+            "const": true,
+            "type": "boolean"
+          },
+          "id": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "alias"
+        ],
+        "type": "object"
+      },
+      "agent": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "harness": {
+                "anyOf": [
+                  {
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "id": {
+                "anyOf": [
+                  {
+                    "format": "uuid",
+                    "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "name": {
+                "anyOf": [
+                  {
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              }
+            },
+            "required": [
+              "id",
+              "name",
+              "harness"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "isCaller": {
+        "type": "boolean"
+      },
+      "mine": {
+        "type": "boolean"
+      }
+    },
+    "required": [
+      "account",
+      "agent",
+      "mine",
+      "isCaller"
+    ],
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]
  3. Changed7 schema fields changed
    • addedInput schema / properties / expectedRevision
      Added value: +{
+  "description": "The revision you read (optional): when given, a task that changed since (a review re-proposed or decided, work started) refuses CONFLICT and nothing is cancelled. Send it to say no to the draft you saw.",
+  "exclusiveMinimum": 0,
+  "maximum": 9007199254740991,
+  "type": "integer"
+}
    • removedOutput schema / properties / task / properties / approveVerb
      Removed value: -{
-  "anyOf": [
-    {
-      "type": "string"
-    },
-    {
-      "type": "null"
-    }
-  ]
-}
    • removedOutput schema / properties / task / properties / decision
      Removed value: -{
-  "anyOf": [
-    {
-      "additionalProperties": false,
-      "properties": {
-        "at": {
-          "format": "date-time",
-          "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$",
-          "type": "string"
-        },
-        "by": {
-          "anyOf": [
-            {
-              "additionalProperties": false,
-              "properties": {
-                "account": {
-                  "additionalProperties": false,
-                  "properties": {
-                    "alias": {
-                      "anyOf": [
-                        {
-                          "type": "string"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "id": {
-                      "type": "string"
-                    }
-                  },
-                  "required": [
-                    "id",
-                    "alias"
-                  ],
-                  "type": "object"
-                },
-                "agent": {
-                  "anyOf": [
-                    {
-                      "additionalProperties": false,
-                      "properties": {
-                        "harness": {
-                          "anyOf": [
-                            {
-                              "type": "string"
-                            },
-                            {
-                              "type": "null"
-                            }
-                          ]
-                        },
-                        "id": {
-                          "anyOf": [
-                            {
-                              "format": "uuid",
-                              "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
-                              "type": "string"
-                            },
-                            {
-                              "type": "null"
-                            }
-                          ]
-                        },
-                        "name": {
-                          "anyOf": [
-                            {
-                              "type": "string"
-                            },
-                            {
-                              "type": "null"
-                            }
-                          ]
-                        }
-                      },
-                      "required": [
-                        "id",
-                        "name",
-                        "harness"
-                      ],
-                      "type": "object"
-                    },
-                    {
-                      "type": "null"
-                    }
-                  ]
-                },
-                "isCaller": {
-                  "type": "boolean"
-                },
-                "mine": {
-                  "type": "boolean"
-                }
-              },
-              "required": [
-                "account",
-                "agent",
-                "mine",
-                "isCaller"
-              ],
-              "type": "object"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "byInstructions": {
-          "anyOf": [
-            {
-              "additionalProperties": false,
-              "properties": {
-                "agent": {
-                  "additionalProperties": false,
-                  "properties": {
-                    "account": {
-                      "additionalProperties": false,
-                      "properties": {
-                        "alias": {
-                          "anyOf": [
-                            {
-                              "type": "string"
-                            },
-                            {
-                              "type": "null"
-                            }
-                          ]
-                        },
-                        "id": {
-                          "type": "string"
-                        }
-                      },
-                      "required": [
-                        "id",
-                        "alias"
-                      ],
-                      "type": "object"
-                    },
-                    "agent": {
-                      "anyOf": [
-                        {
-                          "additionalProperties": false,
-                          "properties": {
-                            "harness": {
-                              "anyOf": [
-                                {
-                                  "type": "string"
-                                },
-                                {
-                                  "type": "null"
-                                }
-                              ]
-                            },
-                            "id": {
-                              "anyOf": [
-                                {
-                                  "format": "uuid",
-                                  "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
-                                  "type": "string"
-                                },
-                                {
-                                  "type": "null"
-                                }
-                              ]
-                            },
-                            "name": {
-                              "anyOf": [
-                                {
-                                  "type": "string"
-                                },
-                                {
-                                  "type": "null"
-                                }
-                              ]
-                            }
-                          },
-                          "required": [
-                            "id",
-                            "name",
-                            "harness"
-                          ],
-                          "type": "object"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "isCaller": {
-                      "type": "boolean"
-                    },
-                    "mine": {
-                      "type": "boolean"
-                    }
-                  },
-                  "required": [
-                    "account",
-                    "agent",
-                    "mine",
-                    "isCaller"
-                  ],
-                  "type": "object"
-                },
-                "version": {
-                  "exclusiveMinimum": 0,
-                  "maximum": 9007199254740991,
-                  "type": "integer"
-                }
-              },
-              "required": [
-                "version",
-                "agent"
-              ],
-              "type": "object"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "edited": {
-          "type": "boolean"
-        },
-        "outcome": {
-          "enum": [
-            "approved",
-            "skipped"
-          ],
-          "type": "string"
-        }
-      },
-      "required": [
-        "outcome",
-        "at",
-        "by",
-        "byInstructions",
-        "edited"
-      ],
-      "type": "object"
-    },
-    {
-      "type": "null"
-    }
-  ]
-}
    • addedOutput schema / properties / task / properties / latestRound
      Added value: +{
+  "anyOf": [
+    {
+      "additionalProperties": false,
+      "properties": {
+        "number": {
+          "exclusiveMinimum": 0,
+          "maximum": 9007199254740991,
+          "type": "integer"
+        },
+        "outcome": {
+          "anyOf": [
+            {
+              "enum": [
+                "approved",
+                "sent_back",
+                "cancelled",
+                "withdrawn",
+                "replaced"
+              ],
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        }
+      },
+      "required": [
+        "number",
+        "outcome"
+      ],
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}
    • addedOutput schema / properties / task / properties / step
      Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}
    • addedOutput schema / properties / task / properties / type
      Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}
    • changedOutput schema / properties / task / required
      Previous value: -[
-  "id",
-  "status",
-  "holder",
-  "assignee",
-  "reviewer",
-  "createdBy",
-  "completedBy",
-  "parentId",
-  "approveVerb",
-  "decision",
-  "result",
-  "cancelledById",
-  "cancelledAt",
-  "cancelReason"
-]New value: +[
+  "id",
+  "status",
+  "type",
+  "step",
+  "holder",
+  "assignee",
+  "reviewer",
+  "createdBy",
+  "completedBy",
+  "parentId",
+  "latestRound",
+  "result",
+  "cancelledById",
+  "cancelledAt",
+  "cancelReason"
+]
  4. First observed

TDQS

A4.6/5.0
Behavior5/5

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

Annotations mark this destructive and idempotent, and the description goes well beyond that: it discloses that cancellation is reversible ('it can be reopened'), that the review round closes as cancelled, the permission model for proposals, and the exact failure modes (REVIEW_NOT_YOURS with details.reviewer, CONFLICT with details.currentRevision, nothing cancelled).

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?

Front-loaded with the core action and its status scope, with alternatives at the end where they belong. It is dense and parenthetical-heavy (error codes and detail keys embedded mid-sentence), which slightly hurts scanability but no sentence is filler.

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

Completeness5/5

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

For a destructive, role-sensitive mutation with a rich sibling set, the description covers reversibility, authorization, concurrency safety and alternative tools; an output schema and full parameter docs already cover return shape, so nothing material 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 coverage is 100%, so the baseline is 3; the description names 'optional reason' and restates the expectedRevision conflict contract, but the latter largely duplicates the schema's own expectedRevision text. The 'why' parameter is left entirely to the schema.

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

Purpose5/5

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

States a specific verb and resource ('Cancel a task') and immediately bounds the scope to any open status (To do, Doing, In review), including the review-specific meaning (turning down a proposal). An agent can distinguish it from task_decide, task_stop and task_complete from the text alone.

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

Usage Guidelines5/5

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

Explicitly routes the agent to alternatives with their conditions: 'To ask for changes instead, task_decide send_back' and 'To withdraw your own proposal and keep the task, use task_stop.' It also states who may cancel an In review task and what error the excluded caller gets.

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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