# Validate Task

`POST /v1/tasks/{task_id}/validate`

Run publish-grade validation on the draft without publishing it.

Covers everything a draft write checks plus what publishing adds: a
workspace API key for the model, at least one output field, the operation
trees of the attached tools, and the email batches already drafting with
this task. Returns errors (blocking) and warnings (advisory).

Authenticate with `Authorization: Bearer $TALQING_API_KEY`. Errors use the shared envelope: https://docs.talqing.com/api-reference/errors.md

## OpenAPI

```json
{
 "openapi":"3.1.0",
 "servers":[
  {
   "description":"Talqing API",
   "url":"https://api.talqing.com"
  }
 ],
 "paths":{
  "/v1/tasks/{task_id}/validate":{
   "post":{
    "description":"Run publish-grade validation on the draft without publishing it.\n\nCovers everything a draft write checks plus what publishing adds: a\nworkspace API key for the model, at least one output field, the operation\ntrees of the attached tools, and the email batches already drafting with\nthis task. Returns errors (blocking) and warnings (advisory).",
    "operationId":"tasks.validate",
    "parameters":[
     {
      "in":"path",
      "name":"task_id",
      "required":true,
      "schema":{
       "format":"uuid",
       "title":"Task Id",
       "type":"string"
      }
     }
    ],
    "responses":{
     "200":{
      "content":{
       "application/json":{
        "schema":{
         "$ref":"#/components/schemas/ValidateResponse"
        }
       }
      },
      "description":"Successful Response"
     },
     "400":{
      "$ref":"#/components/responses/BadRequest"
     },
     "401":{
      "$ref":"#/components/responses/Unauthorized"
     },
     "404":{
      "$ref":"#/components/responses/NotFound"
     },
     "409":{
      "$ref":"#/components/responses/Conflict"
     },
     "422":{
      "$ref":"#/components/responses/ValidationFailed"
     },
     "default":{
      "$ref":"#/components/responses/Error"
     }
    },
    "security":[
     {
      "BearerAuth":[]
     },
     {
      "SessionCookie":[]
     }
    ],
    "summary":"Validate Task",
    "tags":[
     "tasks"
    ]
   }
  }
 },
 "components":{
  "responses":{
   "BadRequest":{
    "content":{
     "application/json":{
      "schema":{
       "$ref":"#/components/schemas/ErrorResponse"
      }
     }
    },
    "description":"Well-formed, but rejected by a rule; `detail.errors` lists each problem."
   },
   "Conflict":{
    "content":{
     "application/json":{
      "schema":{
       "$ref":"#/components/schemas/ErrorResponse"
      }
     }
    },
    "description":"The resource's current state forbids this \u2014 a name already taken, a job already running."
   },
   "Error":{
    "content":{
     "application/json":{
      "schema":{
       "$ref":"#/components/schemas/ErrorResponse"
      }
     }
    },
    "description":"Unexpected error. Every error this API returns carries this body."
   },
   "NotFound":{
    "content":{
     "application/json":{
      "schema":{
       "$ref":"#/components/schemas/ErrorResponse"
      }
     }
    },
    "description":"No such resource in this organization."
   },
   "Unauthorized":{
    "content":{
     "application/json":{
      "schema":{
       "$ref":"#/components/schemas/ErrorResponse"
      }
     }
    },
    "description":"Missing credential, or one that is revoked or no longer a member of this organization."
   },
   "ValidationFailed":{
    "content":{
     "application/json":{
      "schema":{
       "$ref":"#/components/schemas/ErrorResponse"
      }
     }
    },
    "description":"The request did not match this operation's schema; `detail.errors` lists each field."
   }
  },
  "schemas":{
   "ErrorBody":{
    "description":"The structured half of our error contract: a human `message` plus a list\nof individual `errors` (used wherever we surface many problems at once,\nincluding tool publish, op-tree checks, and request validation). The global\nexception handlers normalize every API error to\n`{detail: {message, errors, code}}`, so SDKs can parse one shape consistently.",
    "properties":{
     "code":{
      "anyOf":[
       {
        "type":"string"
       },
       {
        "type":"null"
       }
      ],
      "default":null,
      "description":"A stable identifier for this error, when it has one.",
      "title":"Code"
     },
     "errors":{
      "items":{
       "type":"string"
      },
      "title":"Errors",
      "type":"array"
     },
     "message":{
      "title":"Message",
      "type":"string"
     }
    },
    "required":[
     "message",
     "errors"
    ],
    "title":"ErrorBody",
    "type":"object"
   },
   "ErrorResponse":{
    "description":"The body of every error response, at every status code.",
    "properties":{
     "detail":{
      "$ref":"#/components/schemas/ErrorBody"
     }
    },
    "required":[
     "detail"
    ],
    "title":"ErrorResponse",
    "type":"object"
   },
   "ValidateResponse":{
    "description":"What every `validate_*` answers. `errors` block a publish; `warnings` do not.",
    "properties":{
     "errors":{
      "items":{
       "type":"string"
      },
      "title":"Errors",
      "type":"array"
     },
     "warnings":{
      "items":{
       "type":"string"
      },
      "title":"Warnings",
      "type":"array"
     }
    },
    "required":[
     "errors",
     "warnings"
    ],
    "title":"ValidateResponse",
    "type":"object"
   }
  }
 }
}
```