API Evangelist enhancements for the Bungalow API

overlay: 1.0.0
info:
  title: API Evangelist enhancements for the Bungalow API
  version: 1.0.0
extends: openapi/bungalow-openapi-original.yml
x-apievangelist:
  generated: '2026-08-01'
  method: generated
  source: >-
    Enhancements derived from the published API reference at
    https://fieldstone.bungalow.com/api/v1/docs/ and from live probes of
    https://fieldstone.bungalow.com/api/v1/ on 2026-08-01. The harvested original spec is never
    mutated.
  note: >-
    The upstream spec has an empty info.version, no securitySchemes, no components.schemas, no
    operation summaries, path-shaped operationIds, and declares only 200 responses. This overlay
    records what we know to be true without editing the provider's document.
actions:
- target: $.info
  update:
    x-apievangelist-harvested: '2026-08-01'
    x-apievangelist-spec-source: https://fieldstone.bungalow.com/api/v1/open-api-schema/
    x-apievangelist-docs: https://fieldstone.bungalow.com/api/v1/docs/
    x-apievangelist-callable: true
    x-apievangelist-callable-evidence: 'GET /markets/?limit=3 -> 200 application/json, anonymous, 2026-08-01'
    x-apievangelist-version-note: >-
      info.version is empty upstream. The only version signal is the /api/v1/ path segment; the docs
      state semantic versioning within major versions.
- target: $.servers
  update:
  - url: https://fieldstone.bungalow.com/api/v1/
    description: Production. Anonymous, read-mostly public listings API. No sandbox is published.
- target: $.info
  update:
    x-apievangelist-conventions: conventions/bungalow-conventions.yml
    x-apievangelist-errors: errors/bungalow-problem-types.yml
    x-apievangelist-data-model: data-model/bungalow-data-model.yml
    x-apievangelist-authentication: authentication/bungalow-authentication.yml
    x-apievangelist-webhooks: asyncapi/bungalow-webhooks.yml
    x-apievangelist-error-envelope:
      rfc9457: false
      root_key: error
      always_present: [code, type, message]
      documented_types:
      - ValidationError
      - ParseError
      - AuthenticationFailed
      - NotAuthenticated
      - InvalidToken
      - PermissionDenied
      - NotFound
      - MethodNotAllowed
      - NotAcceptable
      - Conflict
      - APIGoneError
      - UnsupportedMediaType
      - Throttled
      - ServerError
      note: >-
        Documented in prose in the API reference but absent from every operation's responses object.
    x-apievangelist-pagination:
      style: limit-offset
      limit_default: 20
      limit_max: 100
      offset_default: 0
      response_fields: [results, count, next, previous]
    x-apievangelist-rate-limiting:
      signal: 429 Throttled with Retry-After
      published_quota: null
    x-agentic-access-summary:
      read_operations: 5
      write_operations: 2
      idempotency: none
      note: >-
        Both write operations create real-world commitments (an appointment with a showing agent; a
        named person's lease application) and carry no idempotency key. Treat as human-in-the-loop.
- target: $.paths['/markets/'].get
  update:
    summary: List active markets
    x-apievangelist-agent-note: >-
      Mandatory entry point. /listings/properties/ requires market__slug, which is only obtainable
      here. 23 markets observed 2026-08-01.
    x-apievangelist-observed:
      count: 23
      cache_control: max-age=1800
      allow: GET, HEAD, OPTIONS
      id_wire_type: >-
        Declared integer, returned as a decimal STRING (e.g. "715194178910805703"). Clients must not
        parse as a 32-bit int.
- target: $.paths['/markets/{id}'].get
  update:
    summary: Get a market with demand metrics
- target: $.paths['/listings/properties/'].get
  update:
    summary: List marketable properties in a market
    x-apievangelist-agent-note: >-
      Branch on property_marketing_type — group_living uses full_property_price, co_living uses the
      room_prices array. Co-living addresses and lat/long are deliberately obfuscated by the
      provider.
    x-apievangelist-polling:
      refresh_interval: PT10M
      max_staleness_recommended: PT24H
    x-apievangelist-syndication-rule: >-
      Bungalow requests that third-party listings sites only post a listing when the earliest
      availability date is less than 30 days out.
- target: $.paths['/listings/properties/{id_or_slug}'].get
  update:
    summary: Get a single property in full detail
    x-apievangelist-agent-note: >-
      Returns fields the list operation omits — description_html, matterport_url,
      walkthrough_video_url, rooms, roommates, roommate_living_preferences, calendly_url,
      showings_available.
- target: $.paths['/listings/showings/availability/{id}/'].get
  update:
    summary: Get the showing availability grid for a property
    x-apievangelist-agent-note: >-
      {id} is the PROPERTY id, not a showing id. Timeslots carry job_id — pass it to
      POST /listings/showings/ to join an existing group showing job.
- target: $.paths['/listings/showings/'].post
  update:
    summary: Book a property showing
    x-apievangelist-agent-note: >-
      Non-idempotent, real-world consequence. Re-fetch availability before retrying; a taken slot
      returns 410 APIGoneError with "This timeslot is no longer available. Please select another
      time."
    x-agentic-access:
      action-class: acting
      consequence: write
      human-in-the-loop: required
      idempotent: false
      audit: required
      x-apievangelist-note: >-
        Recommended governance contract generated by API Evangelist. Not a provider claim.
- target: $.paths['/applications/source/'].post
  update:
    summary: Create an application source (lead)
    x-apievangelist-agent-note: >-
      Submits a named individual's PII into Bungalow's leasing funnel and returns a public
      application URL. Requires explicit consent from the person named. Non-idempotent.
    x-agentic-access:
      action-class: acting
      consequence: write
      human-in-the-loop: required
      idempotent: false
      audit: required
      pii: true
      x-apievangelist-note: >-
        Recommended governance contract generated by API Evangelist. Not a provider claim.