feat: update Chat Completions request/response schemas - #127
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Sync the missing fields with ai-dial-sdk. Request: - messages: "developer" role, content parts, custom_fields.cache_breakpoint, refusal, custom_content.stages/form_value/form_schema - tools: function.strict, custom_fields.cache_breakpoint, static_function tools, tool_choice="required", parallel_tool_calls - max_completion_tokens, reasoning_effort, stream_options, response_format=json_schema, custom_fields.cache_breakpoint Response: - custom_content.stages/form_value/form_schema, message.refusal - usage.prompt_tokens_details, usage.completion_tokens_details - statistics.usage_per_model, statistics.discarded_messages DIAL-specific and recent OpenAI parameters are now sent via extra_body: max_prompt_tokens and custom_fields used to be passed as openai kwargs, which raised TypeError, and response_format was never sent at all. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
alex-chernyshov
approved these changes
Aug 13, 2026
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Resolves #39
Syncs the Chat Completions schemas with the latest ai-dial-sdk==0.39.0.
Request
messages[]role: "developer",contentparts (text,image_url,file,input_audio,refusal),refusal,custom_fields.cache_breakpointmessages[].custom_contentstages,form_value,form_schematools[]function.strict,custom_fields.cache_breakpoint,static_functiontoolstool_choice: "required",parallel_tool_calls,max_completion_tokens,reasoning_effort,stream_options,response_format: json_schemacustom_fieldscache_breakpointResponse
choices[].messagerefusalchoices[].message.custom_contentstages,form_value,form_schemausageprompt_tokens_details.cached_tokens,prompt_tokens_details.cache_write_tokens,completion_tokens_details.reasoning_tokensstatisticsusage_per_model,discarded_messagesAttachments got the streaming-only
indexfield. Same additions apply to streaming deltas.Fixes
max_prompt_tokensandcustom_fieldswere passed asopenaikwargs, raisingTypeError: Completions.create() got an unexpected keyword argument. They never worked.response_formatwas accepted bycreate()but never sent.logprobs/top_logprobswere missing from one async overload.DIAL-specific and recent OpenAI parameters now go through
extra_body, so they don't depend on the installedopenaiversion.