Amigo Functions API

openapi: 3.2.0
info:
  title: Platform Functions API
  description: Management API for the Amigo platform. Provides CRUD operations for workspaces, API keys, and resources.
  version: 1.0.0
servers:
- url: https://api.platform.amigo.ai
  description: Production
security:
- BearerAuth: []
tags:
- name: Functions
paths:
  /v1/{workspace_id}/functions:
    get:
      tags:
      - Functions
      summary: List every platform function registered in the workspace
      description: 'List every platform function registered in the workspace.


        Permissions: ``Workspace.view`` (read role and above).'
      operationId: list-functions
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RegisteredFunctionListResponse'
        '429':
          description: Rate limited
      parameters:
      - name: workspace_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
          title: Workspace Id
  /v1/{workspace_id}/functions/{function_name}:
    get:
      tags:
      - Functions
      summary: Get a registered platform function by name
      description: 'Resolve a function by name.


        Permissions: ``Workspace.view`` (read role and above).'
      operationId: get-function
      parameters:
      - name: workspace_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
          title: Workspace Id
      - name: function_name
        in: path
        required: true
        schema:
          type: string
          title: Function Name
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RegisteredFunctionResponse'
        '404':
          description: Function not found
        '429':
          description: Rate limited
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
    put:
      tags:
      - Functions
      summary: Deploy (validate + upsert) a platform function
      description: 'Validate + upsert a platform function row.


        Atomic: validation + (python/udtf only) UC UDF materialization +

        upsert into ``platform.functions`` happen as one logical operation.

        Repeat deploys against the same ``(workspace, name)`` replace the

        row in place and clear stale ``last_test_*`` telemetry.


        The function name comes from the URL path; the request body''s

        ``name`` field must match or a 400 is raised. The URL is the

        authoritative source.


        Permissions: admin, owner.'
      operationId: deploy-function
      parameters:
      - name: workspace_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
          title: Workspace Id
      - name: function_name
        in: path
        required: true
        schema:
          type: string
          title: Function Name
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RegisteredFunction'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RegisteredFunctionResponse'
        '400':
          description: URL function_name does not match body name
        '422':
          description: Validation failure (read-only / bind / parity)
        '429':
          description: Rate limited
    delete:
      tags:
      - Functions
      summary: Remove a registered platform function
      description: 'Remove a registered function row.


        Permissions: admin, owner.'
      operationId: delete-function
      parameters:
      - name: workspace_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
          title: Workspace Id
      - name: function_name
        in: path
        required: true
        schema:
          type: string
          title: Function Name
      responses:
        '204':
          description: Successful Response
        '404':
          description: Function not found
        '429':
          description: Rate limited
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/{workspace_id}/functions/{function_name}/invoke:
    post:
      tags:
      - Functions
      summary: Execute a registered platform function
      description: 'Execute a registered function and return its rows.


        Bound parameters are validated against the stored schema; ``ws_id``

        is auto-injected from the request context. Returns the executor''s

        shaped response (``rows`` for ``returns=table``, scalar value for

        ``returns=scalar``).


        Permissions: ``Workspace.view`` (read role and above). Read-only

        keys are intentionally allowed — invocation runs a stored,

        pre-validated SELECT against catalogs the workspace SP already has

        SELECT on; the gate on what can run is the deploy-time validator

        (read-only invariant), not the per-call permission.'
      operationId: invoke-function
      parameters:
      - name: workspace_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
          title: Workspace Id
      - name: function_name
        in: path
        required: true
        schema:
          type: string
          title: Function Name
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InvokeRequest'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InvokeResponse'
        '404':
          description: Function not found
        '422':
          description: Bind validation failure
        '429':
          description: Rate limited
  /v1/{workspace_id}/functions/{function_name}/test:
    post:
      tags:
      - Functions
      summary: Test invoke + persist last_test_* telemetry on the row
      description: 'Test invoke — same as invoke + persists last_test_* on the row.


        Returns 200 with ``status="fail"`` + populated ``error`` on

        execution failure (instead of a 5xx) so the DC has a single

        happy-path rendering.


        Permissions: admin, owner.'
      operationId: test-function
      parameters:
      - name: workspace_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
          title: Workspace Id
      - name: function_name
        in: path
        required: true
        schema:
          type: string
          title: Function Name
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InvokeRequest'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TestInvokeResponse'
        '404':
          description: Function not found
        '429':
          description: Rate limited
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    RegisteredFunctionResponse:
      properties:
        name:
          type: string
          title: Name
        function_type:
          type: string
          title: Function Type
        returns_kind:
          type: string
          title: Returns Kind
        description:
          type: string
          title: Description
          default: ''
        when_to_use:
          type: string
          title: When To Use
          default: ''
        parameters:
          items:
            additionalProperties: true
            type: object
          type: array
          title: Parameters
        sql_template:
          type: string
          title: Sql Template
        input_schema:
          additionalProperties: true
          type: object
          title: Input Schema
        examples:
          items:
            additionalProperties: true
            type: object
          type: array
          title: Examples
        timeout_ms:
          type: integer
          title: Timeout Ms
          default: 30000
        last_test_at:
          anyOf:
          - type: string
          - type: 'null'
          title: Last Test At
        last_test_status:
          anyOf:
          - type: string
          - type: 'null'
          title: Last Test Status
        last_test_error:
          anyOf:
          - type: string
          - type: 'null'
          title: Last Test Error
        last_test_duration_ms:
          anyOf:
          - type: integer
          - type: 'null'
          title: Last Test Duration Ms
        deployed_at:
          anyOf:
          - type: string
          - type: 'null'
          title: Deployed At
        deployed_by:
          anyOf:
          - type: string
          - type: 'null'
          title: Deployed By
      type: object
      required:
      - name
      - function_type
      - returns_kind
      - sql_template
      title: RegisteredFunctionResponse
      description: Single row from ``platform.functions``.
    platform_lib__platform_functions__models__Parameter:
      properties:
        name:
          type: string
          maxLength: 64
          minLength: 1
          pattern: ^[a-z][a-z0-9_]*$
          title: Name
        type:
          type: string
          enum:
          - string
          - integer
          - number
          - boolean
          title: Type
        description:
          type: string
          maxLength: 512
          minLength: 1
          title: Description
        default:
          anyOf:
          - type: string
          - type: integer
          - type: number
          - type: boolean
          - type: 'null'
          title: Default
      additionalProperties: false
      type: object
      required:
      - name
      - type
      - description
      title: Parameter
      description: 'Typed declaration of one input parameter.


        For SQL function types, ``name`` becomes the ``:name`` placeholder

        in the SQL template. For Python function types, ``name`` becomes

        the positional argument name in ``def main(...)`` and the input

        column name on the UC UDF signature.


        The ``description`` propagates into the LLM tool spec (this is

        what Databricks'' Agent Framework reads, and what Anthropic''s

        tool-use spec exposes to the model). Missing descriptions

        silently break tool selection — the registration layer rejects

        empty strings.'
    TestInvokeResponse:
      properties:
        result:
          title: Result
        duration_ms:
          type: number
          title: Duration Ms
          default: 0.0
        row_count:
          type: integer
          title: Row Count
          default: 0
        status:
          type: string
          title: Status
          default: pass
        error:
          anyOf:
          - type: string
            maxLength: 2000
          - type: 'null'
          title: Error
        test_duration_ms:
          anyOf:
          - type: integer
          - type: 'null'
          title: Test Duration Ms
      type: object
      title: TestInvokeResponse
      description: 'Response shape for ``POST /v1/{ws}/functions/{name}/test``.


        Structural superset of :class:`InvokeResponse`. Adds ``status`` and

        ``error`` so the DC can render the executor''s failure detail inline

        rather than a generic "Invocation failed." The underlying invoke

        uses the same path; ``status`` / ``error`` are filled in by

        ``service.test`` after catching any ``HTTPException`` (503) from the

        executor, so the route never bubbles a 5xx for a logical SQL

        failure — it''s still a 200 with ``status=fail`` so the caller can

        show the message.


        Invariant (enforced by :func:`_check_error_when_fail`):

        ``status == "fail" → error is not None and len(error) > 0``.'
    InvokeResponse:
      properties:
        result:
          title: Result
        duration_ms:
          type: number
          title: Duration Ms
          default: 0.0
        row_count:
          type: integer
          title: Row Count
          default: 0
      type: object
      title: InvokeResponse
    RegisteredFunctionListResponse:
      properties:
        items:
          items:
            $ref: '#/components/schemas/RegisteredFunctionResponse'
          type: array
          title: Items
        count:
          type: integer
          title: Count
      type: object
      required:
      - items
      - count
      title: RegisteredFunctionListResponse
    InvokeRequest:
      properties:
        input:
          additionalProperties: true
          type: object
          title: Input
          description: Caller arguments matching input_schema.
      type: object
      title: InvokeRequest
      description: Invoke a registered function with caller-supplied args.
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    RegisteredFunction:
      properties:
        name:
          type: string
          maxLength: 128
          minLength: 1
          pattern: ^[a-z][a-z0-9_]*$
          title: Name
        description:
          type: string
          maxLength: 2048
          minLength: 1
          title: Description
        when_to_use:
          type: string
          maxLength: 2048
          title: When To Use
          default: ''
        function_type:
          type: string
          enum:
          - sql
          - ai
          - udtf
          - python
          title: Function Type
          default: sql
        returns:
          type: string
          enum:
          - table
          - scalar
          title: Returns
          default: table
        returns_type:
          type: string
          enum:
          - string
          - integer
          - number
          - boolean
          title: Returns Type
          default: string
        parameters:
          items:
            $ref: '#/components/schemas/platform_lib__platform_functions__models__Parameter'
          type: array
          maxItems: 32
          title: Parameters
        returns_columns:
          items:
            $ref: '#/components/schemas/ReturnColumn'
          type: array
          maxItems: 32
          title: Returns Columns
        body:
          type: string
          maxLength: 8192
          minLength: 1
          title: Body
        timeout_ms:
          type: integer
          maximum: 60000.0
          minimum: 100.0
          title: Timeout Ms
          default: 30000
        examples:
          items:
            $ref: '#/components/schemas/FunctionExample'
          type: array
          maxItems: 8
          title: Examples
      additionalProperties: false
      type: object
      required:
      - name
      - description
      - body
      title: RegisteredFunction
      description: 'The authored shape of a platform function.


        Identical wire format whether it''s authored as a YAML file in the

        repo or POSTed to ``/v1/{ws}/functions/deploy``. The deploy

        pipeline validates this, derives the JSON Schema for the LLM tool

        spec, and INSERTs a row into ``platform.functions`` with the next

        monotonic ``version`` per ``(workspace_id, name)``. For

        ``python`` / ``udtf`` rows, deploy ALSO issues

        ``CREATE OR REPLACE FUNCTION`` against the warehouse to materialize

        the UC UDF.'
    ReturnColumn:
      properties:
        name:
          type: string
          maxLength: 64
          minLength: 1
          pattern: ^[a-z][a-z0-9_]*$
          title: Name
        type:
          type: string
          enum:
          - string
          - integer
          - number
          - boolean
          title: Type
        description:
          type: string
          maxLength: 512
          title: Description
          default: ''
      additionalProperties: false
      type: object
      required:
      - name
      - type
      title: ReturnColumn
      description: 'One column in a UDTF''s output schema.


        UC ``RETURNS TABLE(<col1> <type1>, <col2> <type2>, ...)`` requires

        declaring the schema at deploy time. This list anchors that

        schema for ``function_type=udtf`` rows. ``name`` becomes the

        column name in the result rows; ``type`` maps to a Databricks

        SQL type via the same ``ParameterType`` Literal we use for inputs.'
    FunctionExample:
      properties:
        input:
          additionalProperties: true
          type: object
          title: Input
        output:
          title: Output
        description:
          type: string
          title: Description
          default: ''
      additionalProperties: false
      type: object
      required:
      - input
      - output
      title: FunctionExample
      description: 'One example call, surfaced to the LLM and the DC test panel.


        Examples are first-class metadata, not buried in a UC ``COMMENT``

        clause the way Databricks'' native authoring requires. The DC

        tool-picker shows them; the LLM tool spec includes them inline.'
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: API key issued via `POST /v1/{workspace_id}/api-keys`. Pass the returned `api_key` value as a Bearer token.