Editing Openai/694057b6-101c-8007-9a65-c40578c7252d (section)

===== You’ve got two clean options: =====

A) Control tools (OpenAI function-calling schema, but intercepted)
* You include a small set of special functions in the tools list, e.g.: - signal_issue(code, detail, severity) - request_escalation(reason, summary) - declare_outcome(outcome_code)
* The worker intercepts these calls and does not send tool results back (or sends an empty ack and immediately ends, depending on your preference).
* The request returns with signals=[...] alongside text.

This keeps “format familiarity” high for the model (since it already understands tool calling).

B) Structured footer block (no tools)
* BIOS instructs the model to optionally end with a block like: - ===CONTROL=== {json...} ===/CONTROL===
* Worker parses and strips it, and stores the JSON as signals.

This is simpler if your backend’s tool-calling behavior is inconsistent.