OMP Tandem

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tandem_continue

Start a new goal after completing previous ones, preserving history and working directory while resetting acceptance criteria; supply a prompt or contract to define the next turn.

Instructions

Start a NEW current goal after completion; supply exactly one of prompt or turn contract.

History/base policy/mode/cwd persist, but old goals/acceptance do not. The product snapshot stays pinned unless explicitly changed to another revision of the same project. Question timeout is inherited unless explicitly set here. For waiting_input use tandem_reply. continuation=fresh requires an explicit handoff and starts a new context without replaying native history or transferring claims/grants. The source remains intact. Use preflight=true to inspect the same admission without a model or worker.

Input Schema

TableJSON Schema

Name	Required	Default
`prompt`	No
`handoff`	No
`contract`	No
`execution`	No
`preflight`	No
`review_id`	No
`continuation`	No	resume
`review_stage`	No
`conversation_id`	Yes
`timeout_seconds`	No
`project_context_id`	No
`question_timeout_seconds`	No

Output Schema

TableJSON Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedv3.10.0Sep 17, 2026

changedInput schema / properties / contract / anyOf

Previous value: -[
-  {
-    "description": "A new turn's goal and criteria, without permission or ownership changes.",
-    "properties": {
-      "acceptance": {
-        "items": {
-          "maxLength": 2000,
-          "pattern": "\\S",
-          "type": "string"
-        },
-        "maxItems": 50,
-        "type": "array"
-      },
-      "artifact_ids": {
-        "items": {
-          "type": "string"
-        },
-        "maxItems": 32,
-        "type": "array"
-      },
-      "constraints": {
-        "items": {
-          "maxLength": 2000,
-          "pattern": "\\S",
-          "type": "string"
-        },
-        "maxItems": 50,
-        "type": "array"
-      },
-      "context": {
-        "default": "",
-        "maxLength": 60000,
-        "type": "string"
-      },
-      "context_options": {
-        "description": "Presentation of pinned product data, never a reduction of required policy.",
-        "properties": {
-          "advisory_rule_ids": {
-            "items": {
-              "maxLength": 100,
-              "pattern": "\\S",
-              "type": "string"
-            },
-            "maxItems": 50,
-            "type": "array"
-          },
-          "decision_ids": {
-            "items": {
-              "maxLength": 100,
-              "pattern": "\\S",
-              "type": "string"
-            },
-            "maxItems": 100,
-            "type": "array"
-          },
-          "delivery": {
-            "default": "capsule",
-            "enum": [
-              "capsule",
-              "full"
-            ],
-            "type": "string"
-          }
-        },
-        "type": "object"
-      },
-      "goal": {
-        "maxLength": 8000,
-        "pattern": "\\S",
-        "type": "string"
-      },
-      "requirements": {
-        "description": "Declared execution needs; a live-path claim remains attributed evidence.",
-        "properties": {
-          "boundary_paths": {
-            "items": {
-              "type": "string"
-            },
-            "maxItems": 100,
-            "type": "array"
-          },
-          "entry_paths": {
-            "items": {
-              "type": "string"
-            },
-            "maxItems": 100,
-            "type": "array"
-          },
-          "live_path_evidence": {
-            "items": {
-              "type": "string"
-            },
-            "maxItems": 32,
-            "type": "array"
-          },
-          "requires_shell": {
-            "default": false,
-            "type": "boolean"
-          },
-          "requires_write": {
-            "default": false,
-            "type": "boolean"
-          }
-        },
-        "type": "object"
-      },
-      "verification": {
-        "anyOf": [
-          {
-            "description": "Explicit check ladder; later phases include earlier required checks.",
-            "properties": {
-              "checks": {
-                "items": {
-                  "properties": {
-                    "command": {
-                      "anyOf": [
-                        {
-                          "maxLength": 2000,
-                          "type": "string"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ],
-                      "default": null
-                    },
-                    "criterion": {
-                      "maxLength": 2000,
-                      "pattern": "\\S",
-                      "type": "string"
-                    },
-                    "estimated_seconds": {
-                      "anyOf": [
-                        {
-                          "maximum": 7200,
-                          "minimum": 1,
-                          "type": "integer"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ],
-                      "default": null
-                    },
-                    "id": {
-                      "maxLength": 100,
-                      "pattern": "\\S",
-                      "type": "string"
-                    },
-                    "phase": {
-                      "default": "targeted",
-                      "enum": [
-                        "targeted",
-                        "candidate",
-                        "integration"
-                      ],
-                      "type": "string"
-                    },
-                    "requires_shell": {
-                      "default": false,
-                      "type": "boolean"
-                    },
-                    "scope": {
-                      "anyOf": [
-                        {
-                          "description": "Which bytes a run observed. Equal digests of the same kind are the same bytes.",
-                          "properties": {
-                            "boundaries": {
-                              "description": "What the run did not exercise (external services, other platforms, unselected files).",
-                              "items": {
-                                "maxLength": 2000,
-                                "pattern": "\\S",
-                                "type": "string"
-                              },
-                              "maxItems": 20,
-                              "type": "array"
-                            },
-                            "digest": {
-                              "pattern": "^[0-9a-f]{7,128}$",
-                              "type": "string"
-                            },
-                            "kind": {
-                              "enum": [
-                                "tree",
-                                "commit",
-                                "archive",
-                                "content"
-                              ],
-                              "type": "string"
-                            }
-                          },
-                          "required": [
-                            "kind",
-                            "digest"
-                          ],
-                          "type": "object"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ],
-                      "default": null,
-                      "description": "Explicit current input identity. History from other bytes remains recorded but is not a current result; omitted scope keeps ambiguous failures unresolved."
-                    }
-                  },
-                  "required": [
-                    "id",
-                    "criterion"
-                  ],
-                  "type": "object"
-                },
-                "maxItems": 50,
-                "type": "array"
-              },
-              "preparation_seconds": {
-                "default": 0,
-                "maximum": 7200,
-                "minimum": 0,
-                "type": "integer"
-              },
-              "stage": {
-                "default": "targeted",
-                "enum": [
-                  "targeted",
-                  "candidate",
-                  "integration"
-                ],
-                "type": "string"
-              }
-            },
-            "type": "object"
-          },
-          {
-            "type": "null"
-          }
-        ],
-        "default": null
-      }
-    },
-    "required": [
-      "goal"
-    ],
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "description": "A new turn's goal and criteria, without permission or ownership changes.",
+    "properties": {
+      "acceptance": {
+        "items": {
+          "maxLength": 2000,
+          "pattern": "\\S",
+          "type": "string"
+        },
+        "maxItems": 50,
+        "type": "array"
+      },
+      "acceptance_set": {
+        "anyOf": [
+          {
+            "description": "The declared denominator. Its revision is its content, not a version number.",
+            "properties": {
+              "items": {
+                "items": {
+                  "properties": {
+                    "id": {
+                      "pattern": "^[A-Za-z0-9][A-Za-z0-9._\\-]{0,99}$",
+                      "type": "string"
+                    },
+                    "obligations": {
+                      "description": "Declared clauses. Naming none keeps the criterion one undecomposed unit; naming some means a mapping of the parent covers none of them.",
+                      "items": {
+                        "description": "One clause of a criterion, with the exact environment it is owed in.",
+                        "properties": {
+                          "environment": {
+                            "patternProperties": {
+                              "\\S": {
+                                "maxLength": 200,
+                                "type": "string"
+                              }
+                            },
+                            "propertyNames": {
+                              "maxLength": 60
+                            },
+                            "type": "object"
+                          },
+                          "id": {
+                            "pattern": "^[A-Za-z0-9][A-Za-z0-9._\\-]{0,99}$",
+                            "type": "string"
+                          },
+                          "text": {
+                            "maxLength": 16000,
+                            "pattern": "\\S",
+                            "type": "string"
+                          }
+                        },
+                        "required": [
+                          "id",
+                          "text"
+                        ],
+                        "type": "object"
+                      },
+                      "maxItems": 100,
+                      "type": "array"
+                    },
+                    "text": {
+                      "maxLength": 16000,
+                      "pattern": "\\S",
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "id",
+                    "text"
+                  ],
+                  "type": "object"
+                },
+                "maxItems": 100,
+                "type": "array"
+              },
+              "revision": {
+                "pattern": "^[0-9a-f]{64}$",
+                "type": "string"
+              },
+              "schema_version": {
+                "const": 1,
+                "default": 1,
+                "type": "integer"
+              },
+              "set_id": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "set_id",
+              "revision"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ],
+        "default": null,
+        "description": "Optional structured form of the same acceptance list: its texts must repeat acceptance exactly, so there is never a second source of truth."
+      },
+      "artifact_ids": {
+        "items": {
+          "type": "string"
+        },
+        "maxItems": 32,
+        "type": "array"
+      },
+      "constraints": {
+        "items": {
+          "maxLength": 2000,
+          "pattern": "\\S",
+          "type": "string"
+        },
+        "maxItems": 50,
+        "type": "array"
+      },
+      "context": {
+        "default": "",
+        "maxLength": 60000,
+        "type": "string"
+      },
+      "context_options": {
+        "description": "Presentation of pinned product data, never a reduction of required policy.",
+        "properties": {
+          "advisory_rule_ids": {
+            "items": {
+              "maxLength": 100,
+              "pattern": "\\S",
+              "type": "string"
+            },
+            "maxItems": 50,
+            "type": "array"
+          },
+          "decision_ids": {
+            "items": {
+              "maxLength": 100,
+              "pattern": "\\S",
+              "type": "string"
+            },
+            "maxItems": 100,
+            "type": "array"
+          },
+          "delivery": {
+            "default": "capsule",
+            "enum": [
+              "capsule",
+              "full"
+            ],
+            "type": "string"
+          }
+        },
+        "type": "object"
+      },
+      "goal": {
+        "maxLength": 8000,
+        "pattern": "\\S",
+        "type": "string"
+      },
+      "requirements": {
+        "description": "Declared execution needs; a live-path claim remains attributed evidence.",
+        "properties": {
+          "boundary_paths": {
+            "items": {
+              "type": "string"
+            },
+            "maxItems": 100,
+            "type": "array"
+          },
+          "entry_paths": {
+            "items": {
+              "type": "string"
+            },
+            "maxItems": 100,
+            "type": "array"
+          },
+          "live_path_evidence": {
+            "items": {
+              "type": "string"
+            },
+            "maxItems": 32,
+            "type": "array"
+          },
+          "requires_shell": {
+            "default": false,
+            "type": "boolean"
+          },
+          "requires_write": {
+            "default": false,
+            "type": "boolean"
+          }
+        },
+        "type": "object"
+      },
+      "verification": {
+        "anyOf": [
+          {
+            "description": "Explicit check ladder; later phases include earlier required checks.",
+            "properties": {
+              "acceptance_coverage": {
+                "default": "report_only",
+                "description": "report_only surfaces gaps and refuses nothing. require_current_evidence additionally refuses a success report while a declared evidence unit lacks applicable current passing evidence.",
+                "enum": [
+                  "report_only",
+                  "require_current_evidence"
+                ],
+                "type": "string"
+              },
+              "checks": {
+                "items": {
+                  "properties": {
+                    "acceptance_refs": {
+                      "description": "Which declared criteria or obligations this check is intended to exercise. An assertion of intent, never of execution or sufficiency.",
+                      "items": {
+                        "description": "Points at one criterion or one of its obligations, at an exact revision.",
+                        "properties": {
+                          "criterion_id": {
+                            "pattern": "^[A-Za-z0-9][A-Za-z0-9._\\-]{0,99}$",
+                            "type": "string"
+                          },
+                          "obligation_id": {
+                            "anyOf": [
+                              {
+                                "pattern": "^[A-Za-z0-9][A-Za-z0-9._\\-]{0,99}$",
+                                "type": "string"
+                              },
+                              {
+                                "type": "null"
+                              }
+                            ],
+                            "default": null
+                          },
+                          "revision": {
+                            "pattern": "^[0-9a-f]{64}$",
+                            "type": "string"
+                          },
+                          "set_id": {
+                            "type": "string"
+                          }
+                        },
+                        "required": [
+                          "set_id",
+                          "revision",
+                          "criterion_id"
+                        ],
+                        "type": "object"
+                      },
+                      "maxItems": 200,
+                      "type": "array"
+                    },
+                    "command": {
+                      "anyOf": [
+                        {
+                          "maxLength": 2000,
+                          "type": "string"
+                        },
+                        {
+                          "type": "null"
+                        }
+                      ],
+                      "default": null
+                    },
+                    "criterion": {
+                      "maxLength": 2000,
+                      "pattern": "\\S",
+                      "type": "string"
+                    },
+                    "estimated_seconds": {
+                      "anyOf": [
+                        {
+                          "maximum": 7200,
+                          "minimum": 1,
+                          "type": "integer"
+                        },
+                        {
+                          "type": "null"
+                        }
+                      ],
+                      "default": null
+                    },
+                    "id": {
+                      "maxLength": 100,
+                      "pattern": "\\S",
+                      "type": "string"
+                    },
+                    "phase": {
+                      "default": "targeted",
+                      "enum": [
+                        "targeted",
+                        "candidate",
+                        "integration"
+                      ],
+                      "type": "string"
+                    },
+                    "requires_shell": {
+                      "default": false,
+                      "type": "boolean"
+                    },
+                    "scope": {
+                      "anyOf": [
+                        {
+                          "description": "Which bytes a run observed. Equal digests of the same kind are the same bytes.",
+                          "properties": {
+                            "boundaries": {
+                              "description": "What the run did not exercise (external services, other platforms, unselected files).",
+                              "items": {
+                                "maxLength": 2000,
+                                "pattern": "\\S",
+                                "type": "string"
+                              },
+                              "maxItems": 20,
+                              "type": "array"
+                            },
+                            "digest": {
+                              "pattern": "^[0-9a-f]{7,128}$",
+                              "type": "string"
+                            },
+                            "kind": {
+                              "enum": [
+                                "tree",
+                                "commit",
+                                "archive",
+                                "content"
+                              ],
+                              "type": "string"
+                            }
+                          },
+                          "required": [
+                            "kind",
+                            "digest"
+                          ],
+                          "type": "object"
+                        },
+                        {
+                          "type": "null"
+                        }
+                      ],
+                      "default": null,
+                      "description": "Explicit current input identity. History from other bytes remains recorded but is not a current result; omitted scope keeps ambiguous failures unresolved."
+                    }
+                  },
+                  "required": [
+                    "id",
+                    "criterion"
+                  ],
+                  "type": "object"
+                },
+                "maxItems": 50,
+                "type": "array"
+              },
+              "coverage_scope": {
+                "anyOf": [
+                  {
+                    "description": "Which bytes a run observed. Equal digests of the same kind are the same bytes.",
+                    "properties": {
+                      "boundaries": {
+                        "description": "What the run did not exercise (external services, other platforms, unselected files).",
+                        "items": {
+                          "maxLength": 2000,
+                          "pattern": "\\S",
+                          "type": "string"
+                        },
+                        "maxItems": 20,
+                        "type": "array"
+                      },
+                      "digest": {
+                        "pattern": "^[0-9a-f]{7,128}$",
+                        "type": "string"
+                      },
+                      "kind": {
+                        "enum": [
+                          "tree",
+                          "commit",
+                          "archive",
+                          "content"
+                        ],
+                        "type": "string"
+                      }
+                    },
+                    "required": [
+                      "kind",
+                      "digest"
+                    ],
+                    "type": "object"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ],
+                "default": null,
+                "description": "The output bytes this coverage assessment is about. A declaration, not an observation of the filesystem."
+              },
+              "preparation_seconds": {
+                "default": 0,
+                "maximum": 7200,
+                "minimum": 0,
+                "type": "integer"
+              },
+              "stage": {
+                "default": "targeted",
+                "enum": [
+                  "targeted",
+                  "candidate",
+                  "integration"
+                ],
+                "type": "string"
+              }
+            },
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ],
+        "default": null
+      }
+    },
+    "required": [
+      "goal"
+    ],
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]

Changed4 schema fields changedv3.8.0Sep 16, 2026

addedInput schema / properties / continuation

Added value: +{
+  "default": "resume",
+  "enum": [
+    "resume",
+    "fresh"
+  ],
+  "type": "string"
+}

changedInput schema / properties / contract / anyOf

Previous value: -[
-  {
-    "description": "A new turn's goal and criteria, without permission or ownership changes.",
-    "properties": {
-      "acceptance": {
-        "items": {
-          "maxLength": 2000,
-          "pattern": "\\S",
-          "type": "string"
-        },
-        "maxItems": 50,
-        "type": "array"
-      },
-      "artifact_ids": {
-        "items": {
-          "type": "string"
-        },
-        "maxItems": 32,
-        "type": "array"
-      },
-      "constraints": {
-        "items": {
-          "maxLength": 2000,
-          "pattern": "\\S",
-          "type": "string"
-        },
-        "maxItems": 50,
-        "type": "array"
-      },
-      "context": {
-        "default": "",
-        "maxLength": 60000,
-        "type": "string"
-      },
-      "goal": {
-        "maxLength": 8000,
-        "pattern": "\\S",
-        "type": "string"
-      }
-    },
-    "required": [
-      "goal"
-    ],
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "description": "A new turn's goal and criteria, without permission or ownership changes.",
+    "properties": {
+      "acceptance": {
+        "items": {
+          "maxLength": 2000,
+          "pattern": "\\S",
+          "type": "string"
+        },
+        "maxItems": 50,
+        "type": "array"
+      },
+      "artifact_ids": {
+        "items": {
+          "type": "string"
+        },
+        "maxItems": 32,
+        "type": "array"
+      },
+      "constraints": {
+        "items": {
+          "maxLength": 2000,
+          "pattern": "\\S",
+          "type": "string"
+        },
+        "maxItems": 50,
+        "type": "array"
+      },
+      "context": {
+        "default": "",
+        "maxLength": 60000,
+        "type": "string"
+      },
+      "context_options": {
+        "description": "Presentation of pinned product data, never a reduction of required policy.",
+        "properties": {
+          "advisory_rule_ids": {
+            "items": {
+              "maxLength": 100,
+              "pattern": "\\S",
+              "type": "string"
+            },
+            "maxItems": 50,
+            "type": "array"
+          },
+          "decision_ids": {
+            "items": {
+              "maxLength": 100,
+              "pattern": "\\S",
+              "type": "string"
+            },
+            "maxItems": 100,
+            "type": "array"
+          },
+          "delivery": {
+            "default": "capsule",
+            "enum": [
+              "capsule",
+              "full"
+            ],
+            "type": "string"
+          }
+        },
+        "type": "object"
+      },
+      "goal": {
+        "maxLength": 8000,
+        "pattern": "\\S",
+        "type": "string"
+      },
+      "requirements": {
+        "description": "Declared execution needs; a live-path claim remains attributed evidence.",
+        "properties": {
+          "boundary_paths": {
+            "items": {
+              "type": "string"
+            },
+            "maxItems": 100,
+            "type": "array"
+          },
+          "entry_paths": {
+            "items": {
+              "type": "string"
+            },
+            "maxItems": 100,
+            "type": "array"
+          },
+          "live_path_evidence": {
+            "items": {
+              "type": "string"
+            },
+            "maxItems": 32,
+            "type": "array"
+          },
+          "requires_shell": {
+            "default": false,
+            "type": "boolean"
+          },
+          "requires_write": {
+            "default": false,
+            "type": "boolean"
+          }
+        },
+        "type": "object"
+      },
+      "verification": {
+        "anyOf": [
+          {
+            "description": "Explicit check ladder; later phases include earlier required checks.",
+            "properties": {
+              "checks": {
+                "items": {
+                  "properties": {
+                    "command": {
+                      "anyOf": [
+                        {
+                          "maxLength": 2000,
+                          "type": "string"
+                        },
+                        {
+                          "type": "null"
+                        }
+                      ],
+                      "default": null
+                    },
+                    "criterion": {
+                      "maxLength": 2000,
+                      "pattern": "\\S",
+                      "type": "string"
+                    },
+                    "estimated_seconds": {
+                      "anyOf": [
+                        {
+                          "maximum": 7200,
+                          "minimum": 1,
+                          "type": "integer"
+                        },
+                        {
+                          "type": "null"
+                        }
+                      ],
+                      "default": null
+                    },
+                    "id": {
+                      "maxLength": 100,
+                      "pattern": "\\S",
+                      "type": "string"
+                    },
+                    "phase": {
+                      "default": "targeted",
+                      "enum": [
+                        "targeted",
+                        "candidate",
+                        "integration"
+                      ],
+                      "type": "string"
+                    },
+                    "requires_shell": {
+                      "default": false,
+                      "type": "boolean"
+                    },
+                    "scope": {
+                      "anyOf": [
+                        {
+                          "description": "Which bytes a run observed. Equal digests of the same kind are the same bytes.",
+                          "properties": {
+                            "boundaries": {
+                              "description": "What the run did not exercise (external services, other platforms, unselected files).",
+                              "items": {
+                                "maxLength": 2000,
+                                "pattern": "\\S",
+                                "type": "string"
+                              },
+                              "maxItems": 20,
+                              "type": "array"
+                            },
+                            "digest": {
+                              "pattern": "^[0-9a-f]{7,128}$",
+                              "type": "string"
+                            },
+                            "kind": {
+                              "enum": [
+                                "tree",
+                                "commit",
+                                "archive",
+                                "content"
+                              ],
+                              "type": "string"
+                            }
+                          },
+                          "required": [
+                            "kind",
+                            "digest"
+                          ],
+                          "type": "object"
+                        },
+                        {
+                          "type": "null"
+                        }
+                      ],
+                      "default": null,
+                      "description": "Explicit current input identity. History from other bytes remains recorded but is not a current result; omitted scope keeps ambiguous failures unresolved."
+                    }
+                  },
+                  "required": [
+                    "id",
+                    "criterion"
+                  ],
+                  "type": "object"
+                },
+                "maxItems": 50,
+                "type": "array"
+              },
+              "preparation_seconds": {
+                "default": 0,
+                "maximum": 7200,
+                "minimum": 0,
+                "type": "integer"
+              },
+              "stage": {
+                "default": "targeted",
+                "enum": [
+                  "targeted",
+                  "candidate",
+                  "integration"
+                ],
+                "type": "string"
+              }
+            },
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ],
+        "default": null
+      }
+    },
+    "required": [
+      "goal"
+    ],
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]

addedInput schema / properties / handoff

Added value: +{
+  "anyOf": [
+    {
+      "description": "Explicit data for a fresh conversation; no execution capability is transferred.",
+      "properties": {
+        "evidence_artifact_ids": {
+          "items": {
+            "type": "string"
+          },
+          "maxItems": 32,
+          "type": "array"
+        },
+        "invalidated_assumptions": {
+          "items": {
+            "maxLength": 2000,
+            "pattern": "\\S",
+            "type": "string"
+          },
+          "maxItems": 20,
+          "type": "array"
+        },
+        "reason": {
+          "maxLength": 2000,
+          "pattern": "\\S",
+          "type": "string"
+        },
+        "remaining_goals": {
+          "items": {
+            "maxLength": 2000,
+            "pattern": "\\S",
+            "type": "string"
+          },
+          "maxItems": 20,
+          "type": "array"
+        },
+        "summary": {
+          "maxLength": 8000,
+          "pattern": "\\S",
+          "type": "string"
+        }
+      },
+      "required": [
+        "reason",
+        "summary"
+      ],
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null
+}

addedInput schema / properties / preflight

Added value: +{
+  "default": false,
+  "type": "boolean"
+}

Changed1 schema field changedv3.3.0Sep 10, 2026

changedInput schema / properties / execution / anyOf

Previous value: -[
-  {
-    "properties": {
-      "model": {
-        "anyOf": [
-          {
-            "minLength": 1,
-            "pattern": "\\S",
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ],
-        "default": null
-      },
-      "profile": {
-        "default": "balanced",
-        "enum": [
-          "quick",
-          "balanced",
-          "deep"
-        ],
-        "type": "string"
-      },
-      "thinking": {
-        "anyOf": [
-          {
-            "enum": [
-              "off",
-              "minimal",
-              "low",
-              "medium",
-              "high",
-              "xhigh",
-              "max"
-            ],
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ],
-        "default": null
-      },
-      "timeout_seconds": {
-        "anyOf": [
-          {
-            "maximum": 7200,
-            "minimum": 1,
-            "type": "integer"
-          },
-          {
-            "type": "null"
-          }
-        ],
-        "default": null
-      }
-    },
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "properties": {
+      "model": {
+        "anyOf": [
+          {
+            "minLength": 1,
+            "pattern": "\\S",
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ],
+        "default": null
+      },
+      "profile": {
+        "default": "balanced",
+        "description": "Profile defaults: quick: Defaults to low thinking with a 600-second deadline. balanced: Defaults to high thinking with a 1800-second deadline. deep: Defaults to high thinking with a 3600-second deadline. Uses the same thinking level as balanced with a longer deadline, not higher reasoning. These are default choices; overrides, effective settings, and actual settings are reported separately.",
+        "enum": [
+          "quick",
+          "balanced",
+          "deep"
+        ],
+        "type": "string"
+      },
+      "thinking": {
+        "anyOf": [
+          {
+            "enum": [
+              "off",
+              "minimal",
+              "low",
+              "medium",
+              "high",
+              "xhigh",
+              "max"
+            ],
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ],
+        "default": null
+      },
+      "timeout_seconds": {
+        "anyOf": [
+          {
+            "maximum": 7200,
+            "minimum": 1,
+            "type": "integer"
+          },
+          {
+            "type": "null"
+          }
+        ],
+        "default": null
+      }
+    },
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]

Changed8 schema fields changedv3.1.0Sep 9, 2026

addedInput schema / properties / execution

Added value: +{
+  "anyOf": [
+    {
+      "properties": {
+        "model": {
+          "anyOf": [
+            {
+              "minLength": 1,
+              "pattern": "\\S",
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null
+        },
+        "profile": {
+          "default": "balanced",
+          "enum": [
+            "quick",
+            "balanced",
+            "deep"
+          ],
+          "type": "string"
+        },
+        "thinking": {
+          "anyOf": [
+            {
+              "enum": [
+                "off",
+                "minimal",
+                "low",
+                "medium",
+                "high",
+                "xhigh",
+                "max"
+              ],
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null
+        },
+        "timeout_seconds": {
+          "anyOf": [
+            {
+              "maximum": 7200,
+              "minimum": 1,
+              "type": "integer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null
+        }
+      },
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null
+}

addedInput schema / properties / review_id

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null
+}

addedInput schema / properties / review_stage

Added value: +{
+  "anyOf": [
+    {
+      "enum": [
+        "independent",
+        "comparison"
+      ],
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null
+}

addedInput schema / properties / timeout_seconds / anyOf

Added value: +[
+  {
+    "maximum": 7200,
+    "minimum": 1,
+    "type": "integer"
+  },
+  {
+    "type": "null"
+  }
+]

changedInput schema / properties / timeout_seconds / default
```
Previous value: -1800New value: +null
```
removedInput schema / properties / timeout_seconds / maximum
```
Removed value: -7200
```
removedInput schema / properties / timeout_seconds / minimum
```
Removed value: -1
```
removedInput schema / properties / timeout_seconds / type
```
Removed value: -"integer"
```

First observedv3.0.1Sep 9, 2026

TDQS

A4.6/5.0

Behavior5/5

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

With no annotations, the description carries the full burden and does so well: it discloses persistence of history/base policy/mode/cwd, non-persistence of old goals/acceptance, product-snapshot pinning, inherited question timeout, fresh-context semantics, and that the source remains intact.

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

Conciseness5/5

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

The description is information-dense with no filler; the main purpose is front-loaded, and each sentence adds a distinct behavioral or routing fact. It reads as a compact spec rather than prose padding.

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?

For a 12-parameter tool with no annotations, it covers the core invocation contract and key side-effect semantics, and an output schema exists for return values. It does not explain execution/review options or when resume vs fresh should be chosen beyond the handoff requirement, leaving minor gaps.

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

Parameters4/5

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

Schema description coverage is 0%, and the description compensates for the most important choices: exactly one of prompt or contract, handoff required for fresh continuation, preflight semantics, and question-timeout inheritance. Execution and review-related parameters are left mostly to schema/defaults, so it is not a 5.

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?

The description opens with a specific verb and resource: 'Start a NEW current goal after completion.' It also differentiates from siblings by naming tandem_reply for waiting_input and by framing preflight as a no-model inspection, so an agent can tell this apart from start/reply tools.

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

Usage Guidelines4/5

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

It gives explicit routing guidance: use tandem_reply for waiting_input, use preflight=true for inspecting without a model or worker, and use an explicit handoff when continuation=fresh. It does not enumerate every sibling alternative, but the key decision points are covered.

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