API Evangelist enhancements for LinqAlpha API

overlay: 1.0.0
info:
  title: API Evangelist enhancements for LinqAlpha API
  version: 1.0.0
extends: openapi/linqalpha-openapi-original.json
x-generated: '2026-07-19'
x-method: generated
x-source: openapi/linqalpha-openapi-original.json
x-note: >-
  Captures API Evangelist's enrichment of the published LinqAlpha OpenAPI without mutating it.
  The largest real gap in the source document is missing operationIds: only 11 of 48 operations
  declare one, all of them under the Briefing tag. Every other operation must be addressed by
  method + path, which blocks Arazzo workflows, generated SDKs, and agent tool binding. That gap
  is recorded here rather than papered over — this overlay does not invent operationIds.
actions:
- target: $.info
  update:
    x-apievangelist-enriched: '2026-07-19'
    x-apievangelist-artifacts:
      authentication: authentication/linqalpha-authentication.yml
      scopes: scopes/linqalpha-scopes.yml
      conventions: conventions/linqalpha-conventions.yml
      errors: errors/linqalpha-problem-types.yml
      lifecycle: lifecycle/linqalpha-lifecycle.yml
      conformance: conformance/linqalpha-conformance.yml
      data_model: data-model/linqalpha-data-model.yml
      mcp: mcp/linqalpha-mcp.yml
      rate_limits: rate-limits/linqalpha-rate-limits.yml
      well_known: well-known/linqalpha-well-known.yml
- target: $.info
  update:
    x-apievangelist-contract-gaps:
    - id: missing-operation-ids
      detail: 37 of 48 operations declare no operationId; only the Briefing tag supplies them.
      impact: blocks Arazzo authoring, SDK generation, and reliable agent tool binding
    - id: no-idempotency
      detail: no Idempotency-Key header or parameter on any write operation
      impact: retried creates may duplicate briefings, source batches, and connectors
    - id: non-standard-errors
      detail: errors use a vendor envelope rather than RFC 9457 application/problem+json
    - id: no-contact-or-license-url
      detail: info block declares license name MIT with no url and carries no contact object
- target: $.servers
  update:
  - url: https://api.linqalpha.com
    description: Production
- target: $.info
  update:
    x-apievangelist-auth-summary:
      rest: X-API-KEY header, global security requirement, unscoped
      mcp: >-
        OAuth 2.0 authorization_code with PKCE S256 and dynamic client registration,
        scope mcp:tools
- target: $.info
  update:
    x-apievangelist-conventions:
      pagination:
        style: page-number
        params:
        - page
        - per_page
      streaming: text/event-stream on 7 operations
      async: fire-and-forget enqueue then poll
      versioning: uri-path, v1 and v2 coexist
      idempotency: not supported
- target: $.components.securitySchemes.ApiKeyAuth
  update:
    description: >-
      Send your LinqAlpha API key in the X-API-KEY header on every request. Platform-tier keys are
      multi-tenant; pass organization_id to select which organization's data the key reads.