> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cotool.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Create Linear agent session for an agent

> Creates a Linear Agent Session on an issue and routes the session and its follow-ups to the selected agent using the organization's enabled Linear trigger.



## OpenAPI

````yaml https://app.cotool.ai/api/docs/openapi.json post /api/agents/{agentId}/linear/agent-session
openapi: 3.1.0
info:
  title: Cotool API
  version: 1.0.0
  description: >-
    The Cotool REST API. Authenticate with an API key from `/settings/api-keys`
    sent as `Authorization: Bearer <key>`.


    Authentication, error formats, pagination, and common integration recipes
    are documented in the [API
    overview](https://docs.cotool.ai/api-reference/introduction). Endpoints
    marked **Deprecated** keep working; each one's description names its
    replacement.
servers:
  - url: https://app.cotool.ai
    description: Production server
security:
  - ApiKeyAuth: []
tags:
  - name: Agents
    description: Create, update, run, and version agents.
  - name: Agent Runs
    description: Inspect agent runs, submit feedback, and read evaluation metrics.
  - name: Agent Triggers
    description: Webhook, schedule, and integration triggers that start agent runs.
  - name: Agents as Code
    description: Validate agents and skills defined as YAML in a Git repository.
  - name: Skills
    description: Reusable instructions and tool grants attached to agents.
  - name: Chat
    description: Chat sessions and their transcripts.
  - name: Alerts
    description: Alert triage, routing, and escalation notifications.
  - name: Output Destinations
    description: Webhook, Slack, Jira, and Linear destinations for agent output.
  - name: Detections
    description: Detection agents, detection hits, and the Cotool detection library.
  - name: Hunt
    description: Autonomous hunt threats, gaps, and settings.
  - name: Intel
    description: Threat-intelligence feed items, indicators, and sources.
  - name: Threat Model
    description: The organization threat model and its version history.
  - name: MITRE Coverage
    description: MITRE ATT&CK coverage across detections.
  - name: Tools
    description: Connected tool integrations and captured tool output.
  - name: CLIs
    description: Connected CLI integrations.
  - name: Artifacts
    description: Files and reports produced by agent runs.
  - name: Audit Logs
    description: Organization audit log export and event catalog.
  - name: Users
    description: Users, memberships, and the current session.
  - name: Roles
    description: Role-based permissions.
  - name: Organizations
    description: Organization-level metrics.
paths:
  /api/agents/{agentId}/linear/agent-session:
    post:
      tags:
        - Agent Triggers
      summary: Create Linear agent session for an agent
      description: >-
        Creates a Linear Agent Session on an issue and routes the session and
        its follow-ups to the selected agent using the organization's enabled
        Linear trigger.
      parameters:
        - in: path
          name: agentId
          schema:
            type: string
            format: uuid
          required: true
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                issueId:
                  type: string
                  minLength: 1
                externalUrls:
                  type: array
                  items:
                    type: object
                    properties:
                      label:
                        type: string
                        minLength: 1
                      url:
                        type: string
                        format: uri
                    required:
                      - label
                      - url
              required:
                - issueId
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                  message:
                    type: string
                  agentSessionId:
                    type: string
                  triggerId:
                    type: string
                required:
                  - success
                  - message
        '400':
          description: Bad request — input validation failed or the request was malformed
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationError'
        '401':
          description: Unauthorized — missing or invalid API key / session
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: Forbidden — the authenticated user lacks the required permissions
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PermissionError'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      x-codeSamples:
        - lang: shell
          label: cURL
          source: >-
            curl -X POST
            "https://app.cotool.ai/api/agents/:agentId/linear/agent-session" \
              -H "Authorization: Bearer YOUR_API_KEY" \
              -H "Content-Type: application/json" \
              -d '{"issueId":"string","externalUrls":[{"label":"string","url":"string"}]}'
components:
  schemas:
    ValidationError:
      type: object
      properties:
        error:
          type: string
          description: Error message describing what went wrong
        issues:
          type: array
          description: >-
            Detailed validation issues, present when request or response schema
            validation fails
          items:
            type: object
            additionalProperties: true
      required:
        - error
    Error:
      type: object
      properties:
        error:
          type: string
          description: Error message describing what went wrong
      required:
        - error
    PermissionError:
      type: object
      properties:
        error:
          type: string
          description: Error message describing what went wrong
        missingPerms:
          type: array
          description: Permissions the authenticated user is missing for this operation
          items:
            type: string
      required:
        - error
  securitySchemes:
    ApiKeyAuth:
      type: http
      scheme: bearer
      bearerFormat: API Key
      description: >-
        API Key authentication for programmatic access. Include your API key in
        the Authorization header as: `Bearer your_api_key_here`

````