docs: document OpenRouter model ID invalidation and fallback best practices - #40087
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alaamohanad169-ship-it wants to merge 1 commit into
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docs: document OpenRouter model ID invalidation and fallback best practices#40087alaamohanad169-ship-it wants to merge 1 commit into
alaamohanad169-ship-it wants to merge 1 commit into
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…ctices Adds a new Known Pitfall entry to AGENTS.md explaining that OpenRouter model IDs (like accounts/fireworks/models/deepseek-v4-pro) can be invalidated by upstream hosting providers without notice. Documents: - How the error classifier already handles this (model_not_found with retryable=False, should_fallback=True) - That _classify_400(), _is_model_not_found_error(), and the conversation_loop fallback mechanism all cover this case - Best practice: configure fallback_providers and pin cron/worker sessions to stable direct-serving endpoints Closes #40066
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Summary
Adds a new Known Pitfall entry to AGENTS.md documenting the OpenRouter model ID invalidation issue (tracked in #40066).
What's Documented
accounts/fireworks/models/deepseek-v4-pro→ HTTP 400 "is not a valid model ID"model_not_foundwithretryable=False, should_fallback=True_classify_400()catches "is not a valid model" in 400 responses_is_model_not_found_error()covers cron/worker/compression pathsfallback_providers, pin cron to stable direct-serving endpointsVerification
agent/error_classifier.py—_classify_400()line ~984 checks_MODEL_NOT_FOUND_PATTERNSagent/auxiliary_client.py—_is_model_not_found_error()covers same patternsagent/conversation_loop.py— non-retryable client errors route to_try_activate_fallback()Closes #40066