LangSmith — evaluators

naftiko: 1.0.0-alpha2
info:
  label: LangSmith — evaluators
  description: 'LangSmith — evaluators. 6 operations. Lead operation: List evaluators. Self-contained Naftiko capability covering
    one Langchain business surface.'
  tags:
  - Langchain
  - evaluators
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    LANGCHAIN_API_KEY: LANGCHAIN_API_KEY
capability:
  consumes:
  - type: http
    namespace: langchain-evaluators
    baseUri: ''
    description: LangSmith — evaluators business capability. Self-contained, no shared references.
    resources:
    - name: v1-platform-evaluators
      path: /v1/platform/evaluators
      operations:
      - name: get
        method: GET
        description: List evaluators
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: type
          in: query
          type: string
          description: Filter by evaluator type
        - name: name_contains
          in: query
          type: string
          description: Filter by name substring (also searches creator names)
        - name: tag_value_id
          in: query
          type: array
          description: Filter by tag value IDs
        - name: feedback_key
          in: query
          type: string
          description: Filter by feedback key
        - name: resource_id
          in: query
          type: array
          description: Filter by resource IDs
        - name: sort_by
          in: query
          type: string
          description: Field to sort by
        - name: sort_by_desc
          in: query
          type: boolean
          description: Sort in descending order
        - name: limit
          in: query
          type: integer
          description: Maximum number of results (1-100)
        - name: offset
          in: query
          type: integer
          description: Offset for pagination
      - name: post
        method: POST
        description: Create evaluator
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: body
          in: body
          type: object
          description: Request body (JSON).
          required: true
      - name: delete
        method: DELETE
        description: Bulk delete evaluators
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: evaluator_ids
          in: query
          type: array
          description: Evaluator IDs to delete
          required: true
        - name: delete_run_rules
          in: query
          type: boolean
          description: When true, delete all run rules for this evaluator before deleting the evaluator
    - name: v1-platform-evaluators-evaluator_id
      path: /v1/platform/evaluators/{evaluator_id}
      operations:
      - name: get
        method: GET
        description: Get evaluator
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: evaluator_id
          in: path
          type: string
          description: Evaluator ID
          required: true
      - name: delete
        method: DELETE
        description: Delete evaluator
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: evaluator_id
          in: path
          type: string
          description: Evaluator ID
          required: true
        - name: delete_run_rules
          in: query
          type: boolean
          description: When true, delete all run rules for this evaluator before deleting the evaluator
      - name: patch
        method: PATCH
        description: Update evaluator
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: evaluator_id
          in: path
          type: string
          description: Evaluator ID
          required: true
        - name: body
          in: body
          type: object
          description: Request body (JSON).
          required: true
    authentication:
      type: bearer
      token: '{{env.LANGCHAIN_API_KEY}}'
  exposes:
  - type: rest
    namespace: langchain-evaluators-rest
    port: 8080
    description: REST adapter for LangSmith — evaluators. One Spectral-compliant resource per consumed operation, prefixed
      with /v1.
    resources:
    - path: /v1/v1/platform/evaluators
      name: v1-platform-evaluators
      description: REST surface for v1-platform-evaluators.
      operations:
      - method: GET
        name: get
        description: List evaluators
        call: langchain-evaluators.get
        with:
          type: rest.type
          name_contains: rest.name_contains
          tag_value_id: rest.tag_value_id
          feedback_key: rest.feedback_key
          resource_id: rest.resource_id
          sort_by: rest.sort_by
          sort_by_desc: rest.sort_by_desc
          limit: rest.limit
          offset: rest.offset
        outputParameters:
        - type: object
          mapping: $.
      - method: POST
        name: post
        description: Create evaluator
        call: langchain-evaluators.post
        with:
          body: rest.body
        outputParameters:
        - type: object
          mapping: $.
      - method: DELETE
        name: delete
        description: Bulk delete evaluators
        call: langchain-evaluators.delete
        with:
          evaluator_ids: rest.evaluator_ids
          delete_run_rules: rest.delete_run_rules
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/v1/platform/evaluators/{evaluator-id}
      name: v1-platform-evaluators-evaluator-id
      description: REST surface for v1-platform-evaluators-evaluator_id.
      operations:
      - method: GET
        name: get
        description: Get evaluator
        call: langchain-evaluators.get
        with:
          evaluator_id: rest.evaluator_id
        outputParameters:
        - type: object
          mapping: $.
      - method: DELETE
        name: delete
        description: Delete evaluator
        call: langchain-evaluators.delete
        with:
          evaluator_id: rest.evaluator_id
          delete_run_rules: rest.delete_run_rules
        outputParameters:
        - type: object
          mapping: $.
      - method: PATCH
        name: patch
        description: Update evaluator
        call: langchain-evaluators.patch
        with:
          evaluator_id: rest.evaluator_id
          body: rest.body
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: langchain-evaluators-mcp
    port: 9090
    transport: http
    description: MCP adapter for LangSmith — evaluators. One tool per consumed operation, routed inline through this capability's
      consumes block.
    tools:
    - name: list-evaluators
      description: List evaluators
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: langchain-evaluators.get
      with:
        type: tools.type
        name_contains: tools.name_contains
        tag_value_id: tools.tag_value_id
        feedback_key: tools.feedback_key
        resource_id: tools.resource_id
        sort_by: tools.sort_by
        sort_by_desc: tools.sort_by_desc
        limit: tools.limit
        offset: tools.offset
      outputParameters:
      - type: object
        mapping: $.
    - name: create-evaluator
      description: Create evaluator
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: langchain-evaluators.post
      with:
        body: tools.body
      outputParameters:
      - type: object
        mapping: $.
    - name: bulk-delete-evaluators
      description: Bulk delete evaluators
      hints:
        readOnly: false
        destructive: true
        idempotent: true
      call: langchain-evaluators.delete
      with:
        evaluator_ids: tools.evaluator_ids
        delete_run_rules: tools.delete_run_rules
      outputParameters:
      - type: object
        mapping: $.
    - name: get-evaluator
      description: Get evaluator
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: langchain-evaluators.get
      with:
        evaluator_id: tools.evaluator_id
      outputParameters:
      - type: object
        mapping: $.
    - name: delete-evaluator
      description: Delete evaluator
      hints:
        readOnly: false
        destructive: true
        idempotent: true
      call: langchain-evaluators.delete
      with:
        evaluator_id: tools.evaluator_id
        delete_run_rules: tools.delete_run_rules
      outputParameters:
      - type: object
        mapping: $.
    - name: update-evaluator
      description: Update evaluator
      hints:
        readOnly: false
        destructive: false
        idempotent: true
      call: langchain-evaluators.patch
      with:
        evaluator_id: tools.evaluator_id
        body: tools.body
      outputParameters:
      - type: object
        mapping: $.