POST /api/v1/agent/runs/{id}/steps

Run agent / runs / steps

Authenticated and advertiser scoped. Cross-tenant resource access returns 404. Product/channel entitlements also apply.

The request schema is generated from the runtime Zod input validator. Cross-field refinements and state-dependent constraints are additionally enforced by the API.

Request

HTTP

POST /api/v1/agent/runs/{id}/steps

Use the configured API origin. Private requests require a verified Bearer credential; an agent mutation can additionally require exact approval headers. Authentication guide →

Parameter	Location	Required	Description
`id`	path	Yes

Parameter schemas

JSON Schema

[
  {
    "name": "id",
    "in": "path",
    "required": true,
    "schema": {
      "type": "string",
      "minLength": 1,
      "maxLength": 128
    }
  }
]

Request body contract

{
  "required": true,
  "content": {
    "application/json": {
      "schema": {
        "type": "object",
        "properties": {
          "expectedPhase": {
            "type": "string",
            "enum": [
              "observe",
              "plan",
              "approve",
              "execute",
              "verify"
            ]
          },
          "kind": {
            "type": "string",
            "enum": [
              "observe",
              "plan",
              "approve",
              "execute",
              "verify",
              "other"
            ]
          },
          "label": {
            "type": "string",
            "minLength": 1,
            "maxLength": 240
          },
          "input": {
            "type": "object",
            "additionalProperties": {},
            "default": {}
          },
          "approvalId": {
            "type": "string",
            "minLength": 1,
            "maxLength": 128
          },
          "expectedActionDigest": {
            "type": "string",
            "pattern": "^[a-f0-9]{64}$"
          }
        },
        "required": [
          "expectedPhase",
          "kind",
          "label"
        ],
        "additionalProperties": false
      }
    }
  }
}

Responses

Reference schemas resolve through the downloadable OpenAPI components. The specification marks unmodeled success payloads; an unrestricted payload is not a promise that arbitrary fields exist.

400Invalid request or unsupported fields

Response contract

{
  "description": "Invalid request or unsupported fields",
  "content": {
    "application/json": {
      "schema": {
        "$ref": "#/components/schemas/Error"
      }
    }
  }
}

401Missing or invalid authentication

Response contract

{
  "description": "Missing or invalid authentication",
  "content": {
    "application/json": {
      "schema": {
        "$ref": "#/components/schemas/Error"
      }
    }
  }
}

403Permission or product scope refused

Response contract

{
  "description": "Permission or product scope refused",
  "content": {
    "application/json": {
      "schema": {
        "$ref": "#/components/schemas/Error"
      }
    }
  }
}

404Route or tenant-scoped resource not found

Response contract

{
  "description": "Route or tenant-scoped resource not found",
  "content": {
    "application/json": {
      "schema": {
        "$ref": "#/components/schemas/Error"
      }
    }
  }
}

409State, revision, approval, funding or idempotency conflict

Response contract

{
  "description": "State, revision, approval, funding or idempotency conflict",
  "content": {
    "application/json": {
      "schema": {
        "$ref": "#/components/schemas/Error"
      }
    }
  }
}

422Supplier configuration, capability or upstream refusal

Response contract

{
  "description": "Supplier configuration, capability or upstream refusal",
  "content": {
    "application/json": {
      "schema": {
        "$ref": "#/components/schemas/Error"
      }
    }
  }
}

429Rate limit reached; wait before retrying

Response contract

{
  "description": "Rate limit reached; wait before retrying",
  "headers": {
    "x-ratelimit-limit": {
      "description": "Maximum requests permitted in the current rate-limit window.",
      "schema": {
        "type": "integer"
      }
    },
    "x-ratelimit-remaining": {
      "description": "Requests remaining in the current window.",
      "schema": {
        "type": "integer"
      }
    },
    "x-ratelimit-reset": {
      "description": "Seconds until the current rate-limit window resets.",
      "schema": {
        "type": "integer"
      }
    },
    "retry-after": {
      "description": "Minimum seconds to wait before retrying.",
      "schema": {
        "type": "integer"
      }
    }
  },
  "content": {
    "application/json": {
      "schema": {
        "$ref": "#/components/schemas/Error"
      }
    }
  }
}

500Internal error; inspect state before retrying a mutation

Response contract

{
  "description": "Internal error; inspect state before retrying a mutation",
  "content": {
    "application/json": {
      "schema": {
        "$ref": "#/components/schemas/Error"
      }
    }
  }
}

503Dependency or authentication verifier unavailable

Response contract

{
  "description": "Dependency or authentication verifier unavailable",
  "content": {
    "application/json": {
      "schema": {
        "$ref": "#/components/schemas/Error"
      }
    }
  }
}

2XXSuccessful response. Response schema completeness: unmodeled. The request contract is complete; nested service payloads are not yet fully modeled in OpenAPI. Inspect returned fields before generating a typed SDK.

Response contract

{
  "description": "Successful response. Response schema completeness: unmodeled. The request contract is complete; nested service payloads are not yet fully modeled in OpenAPI. Inspect returned fields before generating a typed SDK.",
  "headers": {
    "x-ratelimit-limit": {
      "description": "Maximum requests permitted in the current rate-limit window.",
      "schema": {
        "type": "integer"
      }
    },
    "x-ratelimit-remaining": {
      "description": "Requests remaining in the current window.",
      "schema": {
        "type": "integer"
      }
    },
    "x-ratelimit-reset": {
      "description": "Seconds until the current rate-limit window resets.",
      "schema": {
        "type": "integer"
      }
    }
  },
  "content": {
    "application/json": {
      "schema": {}
    }
  }
}

Operation constraints

Machine-readable metadata

{
  "x-response-schema-completeness": "unmodeled",
  "x-rate-limit": {
    "requests": 300,
    "windowMilliseconds": 60000,
    "key": "request IP",
    "headers": [
      "x-ratelimit-limit",
      "x-ratelimit-remaining",
      "x-ratelimit-reset"
    ]
  },
  "x-idempotency": {
    "policy": "not-generalized",
    "note": "There is no universal Idempotency-Key middleware. Only the documented endpoint mechanisms protect retries."
  }
}

Complete operation

OpenAPI

{
  "operationId": "post_api_v1_agent_runs_id_steps",
  "summary": "Run agent / runs / steps",
  "description": "Authenticated and advertiser scoped. Cross-tenant resource access returns 404. Product/channel entitlements also apply.\n\nThe request schema is generated from the runtime Zod input validator. Cross-field refinements and state-dependent constraints are additionally enforced by the API.",
  "tags": [
    "Agent"
  ],
  "security": [
    {
      "bearerAuth": []
    }
  ],
  "parameters": [
    {
      "name": "id",
      "in": "path",
      "required": true,
      "schema": {
        "type": "string",
        "minLength": 1,
        "maxLength": 128
      }
    }
  ],
  "requestBody": {
    "required": true,
    "content": {
      "application/json": {
        "schema": {
          "type": "object",
          "properties": {
            "expectedPhase": {
              "type": "string",
              "enum": [
                "observe",
                "plan",
                "approve",
                "execute",
                "verify"
              ]
            },
            "kind": {
              "type": "string",
              "enum": [
                "observe",
                "plan",
                "approve",
                "execute",
                "verify",
                "other"
              ]
            },
            "label": {
              "type": "string",
              "minLength": 1,
              "maxLength": 240
            },
            "input": {
              "type": "object",
              "additionalProperties": {},
              "default": {}
            },
            "approvalId": {
              "type": "string",
              "minLength": 1,
              "maxLength": 128
            },
            "expectedActionDigest": {
              "type": "string",
              "pattern": "^[a-f0-9]{64}$"
            }
          },
          "required": [
            "expectedPhase",
            "kind",
            "label"
          ],
          "additionalProperties": false
        }
      }
    }
  },
  "responses": {
    "400": {
      "description": "Invalid request or unsupported fields",
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/Error"
          }
        }
      }
    },
    "401": {
      "description": "Missing or invalid authentication",
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/Error"
          }
        }
      }
    },
    "403": {
      "description": "Permission or product scope refused",
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/Error"
          }
        }
      }
    },
    "404": {
      "description": "Route or tenant-scoped resource not found",
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/Error"
          }
        }
      }
    },
    "409": {
      "description": "State, revision, approval, funding or idempotency conflict",
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/Error"
          }
        }
      }
    },
    "422": {
      "description": "Supplier configuration, capability or upstream refusal",
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/Error"
          }
        }
      }
    },
    "429": {
      "description": "Rate limit reached; wait before retrying",
      "headers": {
        "x-ratelimit-limit": {
          "description": "Maximum requests permitted in the current rate-limit window.",
          "schema": {
            "type": "integer"
          }
        },
        "x-ratelimit-remaining": {
          "description": "Requests remaining in the current window.",
          "schema": {
            "type": "integer"
          }
        },
        "x-ratelimit-reset": {
          "description": "Seconds until the current rate-limit window resets.",
          "schema": {
            "type": "integer"
          }
        },
        "retry-after": {
          "description": "Minimum seconds to wait before retrying.",
          "schema": {
            "type": "integer"
          }
        }
      },
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/Error"
          }
        }
      }
    },
    "500": {
      "description": "Internal error; inspect state before retrying a mutation",
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/Error"
          }
        }
      }
    },
    "503": {
      "description": "Dependency or authentication verifier unavailable",
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/Error"
          }
        }
      }
    },
    "2XX": {
      "description": "Successful response. Response schema completeness: unmodeled. The request contract is complete; nested service payloads are not yet fully modeled in OpenAPI. Inspect returned fields before generating a typed SDK.",
      "headers": {
        "x-ratelimit-limit": {
          "description": "Maximum requests permitted in the current rate-limit window.",
          "schema": {
            "type": "integer"
          }
        },
        "x-ratelimit-remaining": {
          "description": "Requests remaining in the current window.",
          "schema": {
            "type": "integer"
          }
        },
        "x-ratelimit-reset": {
          "description": "Seconds until the current rate-limit window resets.",
          "schema": {
            "type": "integer"
          }
        }
      },
      "content": {
        "application/json": {
          "schema": {}
        }
      }
    }
  },
  "x-response-schema-completeness": "unmodeled",
  "x-rate-limit": {
    "requests": 300,
    "windowMilliseconds": 60000,
    "key": "request IP",
    "headers": [
      "x-ratelimit-limit",
      "x-ratelimit-remaining",
      "x-ratelimit-reset"
    ]
  },
  "x-idempotency": {
    "policy": "not-generalized",
    "note": "There is no universal Idempotency-Key middleware. Only the documented endpoint mechanisms protect retries."
  }
}

Download the complete specification, including shared schema components →