Tracker›Changelog›2026-11-04-field-wham-usage-shape

Response shape of /backend-api/wham/usage changed: +[ambient_usage] −[]

observedstructure · field2026-11-04-field-wham-usage-shape

Instrument state: Schema 25 · v2 · Bookmarklet 2.8 · measure · gpt-6

Evidence

After
{
  "keys": [
    "ambient_usage"
  ]
}
Breadth
33/33 prompts · global
Modes
instant + thinking
Measuring days
4 Nov 2026 · 33 field diffs in events.jsonl
Raw data excerpt (K1-01__instant, 2026-11-04)
{
  "platform.response_shapes./backend-api/wham/usage": [
    "account_id",
    "additional_rate_limits",
    "ambient_usage",
    "code_review_rate_limit",
    "credits",
    "email",
    "model_usage",
    "plan_type",
    "promo",
    "rate_limit",
    "rate_limit_reached_type",
    "rate_limit_reset_credits",
    "spend_control",
    "user_id"
  ]
}

Daily data of 4 Nov 2026 →

Context

endpoint/backend-api-wham-usage field/wham-usage-ambient-usage

Impact

No evidenced impact.

Status history

4 Nov 2026observed