Chutes AI counts each HTTP API request separately. The existing fix using
stepCountIs(1) only limited the Vercel AI SDK's internal loop, but the
outer while(true) loops in processor.ts and prompt.ts continued to make
additional HTTP requests after tool execution.
This fix:
- Returns singleStepTools flag from LLM.stream() to signal single-step mode
- Breaks out of processor.ts inner loop after one iteration for Chutes
- Breaks out of prompt.ts outer loop after one iteration for Chutes
This ensures only one HTTP request is made per user message for providers
like Chutes that bill per request.
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