Tracker›Changelog›2026-08-29-field-conversation-init-shape

Response shape of /backend-api/conversation/init changed: +[intended_default_model_slug] −[]

observedstructure · field2026-08-29-field-conversation-init-shape

Instrument state: Schema 15 · v2 · Bookmarklet 2.7 · measure · gpt-5-6

Evidence

After
{
  "keys": [
    "intended_default_model_slug"
  ]
}
Breadth
33/33 prompts · global
Modes
instant + thinking
Measuring days
29 Aug 2026 · 33 field diffs in events.jsonl
Raw data excerpt (K1-01__instant, 2026-08-29)
{
  "platform.response_shapes./backend-api/conversation/init": [
    "atlas_mode_enabled",
    "banner_info",
    "blocked_features",
    "default_model_slug",
    "intended_default_model_slug",
    "limits_progress",
    "model_limits",
    "type"
  ]
}

Daily data of 29 Aug 2026 →

Context

endpoint/backend-api-conversation-init field/conversation-init-intended-default-model-slug

Impact

No evidenced impact.

Status history

29 Aug 2026observed