LangSmith · Capability
LangSmith — evaluators
LangSmith — evaluators. 6 operations. Lead operation: List evaluators. Self-contained Naftiko capability covering one Langsmith business surface.
What You Can Do
GET
Get
— List evaluators
/v1/v1/platform/evaluators
POST
Post
— Create evaluator
/v1/v1/platform/evaluators
DELETE
Delete
— Bulk delete evaluators
/v1/v1/platform/evaluators
GET
Get
— Get evaluator
/v1/v1/platform/evaluators/{evaluator-id}
DELETE
Delete
— Delete evaluator
/v1/v1/platform/evaluators/{evaluator-id}
PATCH
Patch
— Update evaluator
/v1/v1/platform/evaluators/{evaluator-id}
MCP Tools
list-evaluators
List evaluators
read-only
idempotent
create-evaluator
Create evaluator
bulk-delete-evaluators
Bulk delete evaluators
idempotent
get-evaluator
Get evaluator
read-only
idempotent
delete-evaluator
Delete evaluator
idempotent
update-evaluator
Update evaluator
idempotent
Capability Spec
naftiko: 1.0.0-alpha2
info:
label: LangSmith — evaluators
description: 'LangSmith — evaluators. 6 operations. Lead operation: List evaluators. Self-contained Naftiko capability covering
one Langsmith business surface.'
tags:
- Langsmith
- evaluators
created: '2026-05-19'
modified: '2026-05-19'
binds:
- namespace: env
keys:
LANGSMITH_API_KEY: LANGSMITH_API_KEY
capability:
consumes:
- type: http
namespace: langsmith-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.LANGSMITH_API_KEY}}'
exposes:
- type: rest
namespace: langsmith-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: langsmith-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: langsmith-evaluators.post
with:
body: rest.body
outputParameters:
- type: object
mapping: $.
- method: DELETE
name: delete
description: Bulk delete evaluators
call: langsmith-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: langsmith-evaluators.get
with:
evaluator_id: rest.evaluator_id
outputParameters:
- type: object
mapping: $.
- method: DELETE
name: delete
description: Delete evaluator
call: langsmith-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: langsmith-evaluators.patch
with:
evaluator_id: rest.evaluator_id
body: rest.body
outputParameters:
- type: object
mapping: $.
- type: mcp
namespace: langsmith-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: langsmith-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: langsmith-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: langsmith-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: langsmith-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: langsmith-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: langsmith-evaluators.patch
with:
evaluator_id: tools.evaluator_id
body: tools.body
outputParameters:
- type: object
mapping: $.