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* fix: preserve system prompt across tool calls when memories are enabled The native tool-call loop runs generate_chat_completion with bypass_system_prompt=True, so the provider layer does not re-apply the model's default system prompt on tool-call iterations. It relies instead on metadata['system_prompt'], captured in process_chat_payload, to carry the full system prompt forward and restore it after RAG injection. That capture read the model default system prompt from form_data['params']['system'], but apply_params_to_form_data had already popped 'params' from form_data, so model_system_prompt was always empty. metadata['system_prompt'] therefore only captured whatever was already materialized in the messages. With memories enabled, that is the injected <memory_context> system message, so tool-call requests were restored with memory-only system content and the model's system prompt was dropped. Without memories there was no system message to capture at all. Capture the model default system prompt from form_data['params'] before apply_params_to_form_data pops it, and use that value when building metadata['system_prompt']. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014Z4L51mvxDJCx1EDxP2vFN * refactor: condense system prompt capture comment to a single line Replace the four-line explanation above the model_system_prompt capture with a one-line note. The variable name and the surrounding code already convey what happens; the comment only needs to state why the capture sits before apply_params_to_form_data. --------- Co-authored-by: Claude <noreply@anthropic.com> |
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