generated: '2026-09-20'
method: derived
source: openapi/version-signal-api-openapi.json + live probes 2026-09-20
auth:
  style: none
  note: public, no key or token required
pagination:
  style: none
  note: single-record lookup, no collections
versioning:
  style: none-in-path
  current: '1.0.0'
request_id:
  supported: false
error_envelope:
  shape: '{"error":"<code>"}'
  format: custom-json
  note: not RFC 9457
rate_limit_signaling:
  headers: []
  note: no RateLimit-* / X-RateLimit-* / Retry-After headers observed on live responses
idempotency:
  coverage: na          # read-only API (GET only) — no mutating surface to protect
  note: The only operation is a GET lookup; there are no writes, so idempotency does not apply.
reversibility:
  grade: na             # read-only API — no actions to reverse
  note: No write/mutating operations exist, so there is nothing to reverse.
dry_run_mode:
  supported: na         # read-only API
  note: No write operations, so a dry-run mode is not applicable.