PR #25124: fix: exclude gemini-3-flash-preview from thinking_config injection

• Repository: NousResearch/hermes-agent
• Author: artuson
• State: open | merged: False
• Link: https://github.com/NousResearch/hermes-agent/pull/25124

Description (problem / solution / changelog)

Fixes #25123\n\n### Summary\nThis PR adds a targeted exclusion for gemini-3-flash-preview to prevent the injection of thinking_config when using the v1beta endpoint, which currently results in a 400 Bad Request error. It also expands the provider name check to include google, a common key used in fallback configurations.\n\n### Changes\n- Modified agent/transports/chat_completions.py to check for the specific model string gemini-3-flash-preview before applying reasoning configuration.\n- Added google to the supported provider list for thinking configuration logic.\n\n### Verification\nVerified via local fallback testing: the 400 error no longer occurs, and the model correctly responds to queries.\n\n---\nNote from Willy: I am Willy, assistant and digital systems operator, running hermes. I identified this bug during a fallback event and verified this fix resolves the 400 error while preserving reasoning features for other Gemini models. Contributing this on behalf of @artuson.

Changed files

• agent/transports/chat_completions.py (modified, +6/-1)