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

# Fix a branch's demo build

> Fix a branch whose demo build is missing: apply the deterministic Ankra-side fixes first (publish-readiness auto-fix, failed-run rerun, failed-setup retry) and, when those cannot produce an image, dispatch a one-shot mission agent that investigates the repository and opens a pull request with the fix. The answer points at the dispatched mission rather than carrying its result, so an unattended caller polls the agent run. A browser session twin is mounted at the same path without the /api/v1 prefix (cookie authentication plus the X-Ankra-CSRF double-submit header).



## OpenAPI

````yaml https://platform.ankra.app/openapi.json post /api/v1/org/applications/{application_id}/demos/fix-build
openapi: 3.1.0
info:
  title: FastAPI
  version: 0.1.0
servers:
  - url: https://platform.ankra.app
security: []
tags:
  - name: Clusters
    description: Create, inspect and manage clusters, and the stacks deployed on them.
  - name: Managed Clusters
    description: Provider-managed control planes, driven through one common surface.
  - name: Imported Clusters
    description: Clusters that already existed and were connected to Ankra.
  - name: Cluster Access
    description: Kubeconfigs, service-account tokens and per-cluster access grants.
  - name: Kubernetes
    description: Read and act on the Kubernetes objects inside a cluster.
  - name: DigitalOcean Clusters
    description: Provision and manage DigitalOcean Kubernetes clusters.
  - name: Hetzner Clusters
    description: Provision and manage Hetzner Kubernetes clusters.
  - name: OVH Clusters
    description: Provision and manage OVH Kubernetes clusters.
  - name: Scaleway Clusters
    description: Provision and manage Scaleway Kapsule clusters.
  - name: UpCloud Clusters
    description: Provision and manage UpCloud Kubernetes clusters.
  - name: Applications
    description: Deploy, configure and observe applications across the fleet.
  - name: Stack Profiles
    description: Reusable stack definitions, their versions and sharing.
  - name: Charts
    description: Browse the chart catalogue behind stacks and addons.
  - name: Helm
    description: Helm registries, credentials and the charts they expose.
  - name: Executions
    description: Long-running platform executions and their jobs.
  - name: Operations
    description: Cancel in-flight cluster operations and their jobs.
  - name: Chat
    description: Conversational sessions, plans and confirmable actions.
  - name: AI Agent Runs
    description: Autonomous agent runs and their outcomes.
  - name: AI Tickets
    description: The AI ticket board, its sync connections and settings.
  - name: AI Playbooks
    description: Reusable playbooks the AI lanes execute.
  - name: AI Conditions
    description: Conditions that gate AI autonomy.
  - name: AI Engineering Handoffs
    description: Work the AI lanes escalate to a human engineer.
  - name: AI Environment
    description: The environment and base stacks AI demos deploy into.
  - name: Security
    description: Findings, advisories, SBOMs, compliance and posture.
  - name: Cost
    description: Cluster and fleet cost, rate cards and cost settings.
  - name: Billing
    description: Subscription and spend caps.
  - name: Organisation
    description: Members, invitations, audit logs and organisation settings.
  - name: Account Tokens
    description: Personal access tokens for the API and CLI.
  - name: Credentials
    description: The shared credential store.
  - name: Azure Credentials
    description: Azure credentials and SSH keys.
  - name: DigitalOcean Credentials
    description: DigitalOcean credentials and SSH keys.
  - name: Hetzner Credentials
    description: Hetzner credentials and SSH keys.
  - name: OVH Credentials
    description: OVH credentials and SSH keys.
  - name: Scaleway Credentials
    description: Scaleway credentials.
  - name: UpCloud Credentials
    description: UpCloud credentials and SSH keys.
  - name: Data Source Credentials
    description: Credentials for metrics and log sources.
  - name: DNS Credentials
    description: Credentials for DNS providers.
  - name: DNS
    description: DNS zones and records, including custom organisation zones.
  - name: Cloudflare
    description: Cloudflare domains and the credentials behind them.
  - name: Variables
    description: Organisation- and cluster-scoped variables.
  - name: SOPS
    description: Encrypt and decrypt values with the organisation SOPS config.
  - name: Alerts
    description: Alert integrations and ingest credentials.
  - name: Notifications
    description: Notification routes and their delivery targets.
  - name: Support
    description: Support tickets.
paths:
  /api/v1/org/applications/{application_id}/demos/fix-build:
    post:
      tags:
        - Applications
      summary: Fix a branch's demo build
      description: >-
        Fix a branch whose demo build is missing: apply the deterministic
        Ankra-side fixes first (publish-readiness auto-fix, failed-run rerun,
        failed-setup retry) and, when those cannot produce an image, dispatch a
        one-shot mission agent that investigates the repository and opens a pull
        request with the fix. The answer points at the dispatched mission rather
        than carrying its result, so an unattended caller polls the agent run. A
        browser session twin is mounted at the same path without the /api/v1
        prefix (cookie authentication plus the X-Ankra-CSRF double-submit
        header).
      operationId: >-
        fix_application_build_api_v1_org_applications__application_id__demos_fix_build_post
      parameters:
        - in: path
          name: application_id
          required: true
          schema:
            type: string
            title: Application Id
        - in: header
          name: authorization
          required: false
          schema:
            anyOf:
              - type: string
              - type: 'null'
            title: Authorization
        - in: header
          name: x-ankra-organisation-id
          required: false
          schema:
            anyOf:
              - type: string
              - type: 'null'
            title: X-Ankra-Organisation-Id
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/FixApplicationBuildRequest'
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/FixApplicationBuildResponse'
          description: Successful Response
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DemoDetailError'
          description: >-
            Validation failure ("A 'branch' is required." or a build-check error
            such as an unknown branch), or a same-second duplicate click ("Ankra
            already dispatched a build-fix agent for this build a moment ago -
            its run is on the AI agents page.")
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DemoDetailError'
          description: '"You do not have permission to fix application builds."'
        '404':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DemoDetailError'
          description: Not found ("Application not found")
        '422':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
          description: Validation Error
        '502':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DemoDetailError'
          description: The AI agent is unavailable or the dispatch failed
components:
  schemas:
    FixApplicationBuildRequest:
      properties:
        branch:
          description: >-
            The branch whose demo build is missing; required (an empty branch is
            a 400).
          type: string
      required:
        - branch
      type: object
    FixApplicationBuildResponse:
      description: >-
        The fix-build answer: the deterministic actions taken, whether the build
        is already resolved or building, and the dispatched mission agent when
        one was needed.
      properties:
        actions_taken:
          items:
            type: string
          type: array
        agent_task:
          anyOf:
            - $ref: '#/components/schemas/FixBuildAgentTask'
            - type: 'null'
        building:
          type: boolean
        resolved:
          type: boolean
        summary:
          type: string
      required:
        - actions_taken
        - resolved
        - building
        - agent_task
        - summary
      type: object
    DemoDetailError:
      description: >-
        The FastAPI-style detail envelope the demo routes use for
        400/403/404/409/502 responses.
      properties:
        detail:
          type: string
      required:
        - detail
      type: object
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          title: Detail
          type: array
      title: HTTPValidationError
      type: object
    FixBuildAgentTask:
      description: >-
        Points the caller at the dispatched mission agent task; the run and
        transcript appear on the agent detail page once the scheduler picks the
        task up.
      properties:
        id:
          type: string
        url:
          type: string
      required:
        - id
        - url
      type: object
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          title: Location
          type: array
        msg:
          title: Message
          type: string
        type:
          title: Error Type
          type: string
      required:
        - loc
        - msg
        - type
      title: ValidationError
      type: object

````