OpenAI breaking change: POST /agents/sessions
removed the optional property `spend_control` from the response with the `201` status (media type: application/json)
Specification capture: . Published evidence last updated . This is captured contract evidence, not an observed outage or a result from scanning your code.
Which field and classification rule changed?
- Changed field
spend_control- Rule ID
response.removed- Classifier version
2026-10-15.2- Direction
- response
- Finding ID
chg_b5b455e6c178b9fd77d30d885d192eb7e12b312ab42ced38cd2cd1e7e84e011c
What is the recorded before and after evidence?
Previous specification SHA-256: 3b10dfe7c2bfee1142d01fa4df4fcc5a2927e41a5bee0b1120ab7cbf5b7f266c
Revised specification SHA-256: a62a4100100897211d796cba7222ba63c4f4b0445a8996ba3b4afd9c28870493
Publisher version: 2.3.0 to 2.3.0.
No before/after schema excerpt is available in this bounded snapshot. Use the source revisions and public finding to inspect the contract; no replacement behavior is inferred here.
Inspect the complete release · Public source findings · Publisher specification source
How do I check whether this affects my code?
Confirm the affected operation and field in the repository commit you authorize. Inspect supported SDK and HTTP call-site matches, review dynamic or unmatched patterns, and choose the intended application behavior before approving a proposal. Schema validation, type checks, configured runtime checks, and your CI provide different evidence.
Check an authorized repository · Review coverage · Inspect classification rules