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

# Discover firedrill.json files at an exact branch head



## OpenAPI

````yaml /api-reference/openapi.json get /v1/github/installations/{installationId}/repositories/{repositoryId}/configurations
openapi: 3.1.0
info:
  title: Firedrill Control API
  version: 1.0.0
  description: >-
    The control plane for drills, drill runs, and the worlds they run in. Errors
    always carry the canonical envelope; unsafe operations require an
    Idempotency-Key; long work returns an operation resource.
servers:
  - url: https://api.firedrill.run
security:
  - controlCredential: []
tags:
  - name: authentication
    description: Sessions, CLI exchange, credentials, and verification keys.
    x-group: Authentication
  - name: organizations
    description: Organization members, billing, usage, retention, audit, and exports.
    x-group: Organizations
  - name: projects
    description: Project lifecycle, access, grants, and repository bindings.
    x-group: Projects
  - name: builds
    description: Immutable builds, uploads, source drafts, and world definitions.
    x-group: Builds and source
  - name: tools
    description: Project Tool discovery, approval, source, and revocation.
    x-group: Tool library
  - name: worlds
    description: >-
      Managed environments, world sessions, state, time, reset, faults, forks,
      and snapshots.
    x-group: Environments and sessions
  - name: runs
    description: >-
      Hosted runs, comparisons, attachments, reports, evidence bundles, sharing,
      and exports.
    x-group: Runs and evidence
  - name: browser
    description: Managed browser tests, runs, messages, streams, frames, and artifacts.
    x-group: Browser testing
  - name: callbacks
    description: Callback receiver approval, revocation, and signing material.
    x-group: Callbacks
  - name: github-ci
    description: >-
      GitHub installations, repository automation, CI suites, cases, evidence,
      and checks.
    x-group: GitHub and CI
  - name: authoring
    description: Authoring sessions, proposals, turns, and scenario proposals.
    x-group: Cloud authoring
paths:
  /v1/github/installations/{installationId}/repositories/{repositoryId}/configurations:
    get:
      tags:
        - github-ci
      summary: Discover firedrill.json files at an exact branch head
      operationId: github.installations.discoverConfigurations
      parameters:
        - name: installationId
          in: path
          required: true
          schema:
            type: string
            pattern: ^[1-9][0-9]{0,19}$
        - name: repositoryId
          in: path
          required: true
          schema:
            type: string
            pattern: ^[1-9][0-9]{0,19}$
        - name: projectId
          in: query
          required: true
          schema:
            type: string
            pattern: ^prj_[0-9a-z]{12,32}$
        - name: repository
          in: query
          required: true
          schema:
            type: string
            pattern: ^[^/\s]+/[^/\s]+$
        - name: branch
          in: query
          required: true
          schema:
            type: string
            minLength: 1
            maxLength: 255
      responses:
        '200':
          description: Configuration discovery at the resolved revision
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RepositoryConfigurationDiscovery'
        default:
          description: Canonical error envelope
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
components:
  schemas:
    RepositoryConfigurationDiscovery:
      type: object
      properties:
        repository:
          type: object
          properties:
            repositoryId:
              type: string
              pattern: ^[1-9][0-9]{0,19}$
            name:
              type: string
              minLength: 1
              maxLength: 100
              pattern: ^[^\r\n\t]+$
            fullName:
              type: string
              minLength: 3
              maxLength: 201
              pattern: ^[A-Za-z0-9_.-]+\/[A-Za-z0-9_.-]+$
            defaultBranch:
              type: string
              minLength: 1
              maxLength: 255
            archived:
              type: boolean
            disabled:
              type: boolean
          required:
            - repositoryId
            - name
            - fullName
            - defaultBranch
            - archived
            - disabled
          additionalProperties: false
        branch:
          type: string
          minLength: 1
          maxLength: 255
        revision:
          type: string
          pattern: ^[0-9a-f]{40}$
        status:
          type: string
          enum:
            - none
            - single
            - multiple
            - incomplete
        locations:
          maxItems: 100000
          type: array
          items:
            type: object
            properties:
              projectRoot:
                anyOf:
                  - type: string
                    minLength: 1
                    maxLength: 1024
                  - type: string
                    enum:
                      - .
              configPath:
                type: string
                minLength: 1
                maxLength: 1024
            required:
              - projectRoot
              - configPath
            additionalProperties: false
      required:
        - repository
        - branch
        - revision
        - status
        - locations
      additionalProperties: false
    ErrorEnvelope:
      type: object
      properties:
        code:
          type: string
          pattern: ^(control|world)\.[A-Z][A-Z0-9]*(_[A-Z0-9]+)*$
        message:
          type: string
          minLength: 1
        correlationId:
          type: string
          minLength: 1
        retryable:
          type: boolean
        retryAfterMs:
          type: integer
          exclusiveMinimum: 0
          maximum: 9007199254740991
        operationId:
          type: string
        source:
          type: string
          enum:
            - platform
            - simulated_provider
        issues:
          type: array
          items:
            type: object
            properties:
              path:
                type: string
              code:
                type: string
              message:
                type: string
            required:
              - path
              - code
              - message
            additionalProperties: false
        details:
          type: object
          propertyNames:
            type: string
          additionalProperties: {}
        evidence:
          type: object
          properties:
            sessionId:
              type: string
            runId:
              type: string
            journalSeq:
              type: integer
              minimum: 0
              maximum: 9007199254740991
            buildHash:
              type: string
          additionalProperties: false
      required:
        - code
        - message
        - correlationId
        - retryable
        - source
      additionalProperties: true
  securitySchemes:
    controlCredential:
      type: http
      scheme: bearer
      description: Opaque control credential

````