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https://github.com/NousResearch/hermes-agent.git
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c769be344a
Some providers (Xiaomi MiMo, some Alibaba endpoints, a long tail of OpenAI-compatible servers) follow the OpenAI spec strictly and require tool message `content` to be a string — they reject our list-type content (text + image_url parts) with HTTP 400 'text is not set' / 'tool message content must be a string'. Instead of an allowlist of known-good providers (maintenance burden, guaranteed to miss aggregators like OpenRouter where the underlying model determines support, not the aggregator name), this lands a reactive recovery: 1. New `FailoverReason.multimodal_tool_content_unsupported` with a small pattern list covering the common 400 wordings. 2. `AIAgent._try_strip_image_parts_from_tool_messages` walks the API message list, downgrades any `role:tool` message whose content is list-with-image to a plain text summary (preserves text parts) in place, AND records the active (provider, model) in a session-scoped `_no_list_tool_content_models` set. 3. `_tool_result_content_for_active_model` short-circuits to a text summary when (provider, model) is in the cache — so after the first 400 + retry, subsequent screenshots in the same session skip the round trip entirely. 4. Retry hook in `agent.conversation_loop` mirrors the existing `image_too_large` recovery: detect the reason, run the helper, retry once, fall through to the normal error path if no list-type tool content was actually present. Cache is transient (per-session) by design — next session retries in case the provider added support, no persistent state to maintain. Fixes #27344. Closes #27351 (allowlist approach superseded by reactive recovery). |
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| .. | ||
| __init__.py | ||
| conftest.py | ||
| test_413_compression.py | ||
| test_860_dedup.py | ||
| test_1630_context_overflow_loop.py | ||
| test_agent_guardrails.py | ||
| test_anthropic_prompt_cache_policy.py | ||
| test_anthropic_third_party_oauth_guard.py | ||
| test_anthropic_truncation_continuation.py | ||
| test_api_max_retries_config.py | ||
| test_async_httpx_del_neuter.py | ||
| test_background_review.py | ||
| test_background_review_cache_parity.py | ||
| test_background_review_summary.py | ||
| test_background_review_toolset_restriction.py | ||
| test_callable_api_key.py | ||
| test_codex_app_server_integration.py | ||
| test_codex_multimodal_tool_result.py | ||
| test_codex_xai_oauth_recovery.py | ||
| test_commit_memory_session_context_engine.py | ||
| test_compress_focus_plugin_fallback.py | ||
| test_compression_boundary.py | ||
| test_compression_boundary_hook.py | ||
| test_compression_feasibility.py | ||
| test_compression_persistence.py | ||
| test_compression_trigger_excludes_reasoning.py | ||
| test_compressor_fallback_update.py | ||
| test_concurrent_interrupt.py | ||
| test_context_token_tracking.py | ||
| test_copilot_native_vision_headers.py | ||
| test_create_openai_client_kwargs_isolation.py | ||
| test_create_openai_client_proxy_env.py | ||
| test_create_openai_client_reuse.py | ||
| test_deepseek_reasoning_content_echo.py | ||
| test_deepseek_v4_thinking_live.py | ||
| test_dict_tool_call_args.py | ||
| test_empty_response_recovery_persistence.py | ||
| test_exit_cleanup_interrupt.py | ||
| test_file_mutation_verifier.py | ||
| test_image_rejection_fallback.py | ||
| test_image_shrink_recovery.py | ||
| test_init_fallback_on_exhausted_pool.py | ||
| test_interactive_interrupt.py | ||
| test_interrupt_propagation.py | ||
| test_invalid_context_length_warning.py | ||
| test_iteration_budget_race.py | ||
| test_jsondecodeerror_retryable.py | ||
| test_last_reasoning_per_turn.py | ||
| test_long_context_tier_429.py | ||
| test_materialize_data_url_cleanup.py | ||
| test_memory_nudge_counter_hydration.py | ||
| test_memory_provider_init.py | ||
| test_memory_sync_interrupted.py | ||
| test_message_sequence_repair.py | ||
| test_multimodal_tool_content_recovery.py | ||
| test_openai_client_lifecycle.py | ||
| test_percentage_clamp.py | ||
| test_plugin_context_engine_init.py | ||
| test_primary_runtime_restore.py | ||
| test_provider_attribution_headers.py | ||
| test_provider_fallback.py | ||
| test_provider_parity.py | ||
| test_real_interrupt_subagent.py | ||
| test_redirect_stdout_issue.py | ||
| test_repair_tool_call_arguments.py | ||
| test_repair_tool_call_name.py | ||
| test_review_prompt_class_first.py | ||
| test_run_agent.py | ||
| test_run_agent_codex_responses.py | ||
| test_run_agent_multimodal_prologue.py | ||
| test_sequential_chats_live.py | ||
| test_session_id_env.py | ||
| test_session_meta_filtering.py | ||
| test_session_reset_fix.py | ||
| test_steer.py | ||
| test_stream_drop_logging.py | ||
| test_stream_interrupt_retry.py | ||
| test_streaming.py | ||
| test_streaming_tool_call_repair.py | ||
| test_strict_api_validation.py | ||
| test_strip_reasoning_tags_cli.py | ||
| test_switch_model_context.py | ||
| test_switch_model_fallback_prune.py | ||
| test_thinking_only_sanitizer.py | ||
| test_token_persistence_non_cli.py | ||
| test_tool_arg_coercion.py | ||
| test_tool_call_args_sanitizer.py | ||
| test_tool_call_guardrail_runtime.py | ||
| test_tool_executor_contextvar_propagation.py | ||
| test_tool_name_db_persistence.py | ||
| test_unicode_ascii_codec.py | ||
| test_vision_aware_preprocessing.py | ||