3 commits

Author	SHA1	Message	Date
sprmn24	e053433c84	fix(error_classifier): disambiguate usage-limit patterns in _classify_by_message ... _classify_by_message had no handling for _USAGE_LIMIT_PATTERNS, so messages like 'usage limit exceeded, try again in 5 minutes' arriving without an HTTP status code fell through to FailoverReason.unknown instead of rate_limit. Apply the same billing/rate-limit disambiguation that _classify_402 already uses: USAGE_LIMIT_PATTERNS + transient signal → rate_limit, USAGE_LIMIT_PATTERNS alone → billing. Add 4 tests covering the no-status-code usage-limit path.	2026-04-09 16:24:13 -07:00
Teknium	3007174a61	fix: prevent 400 format errors from triggering compression loop on Codex Responses API (#6751) ... The error classifier's generic-400 heuristic only extracted err_body_msg from the nested body structure (body['error']['message']), missing the flat body format used by OpenAI's Responses API (body['message']). This caused descriptive 400 errors like 'Invalid input[index].name: string does not match pattern' to appear generic when the session was large, misclassifying them as context overflow and triggering an infinite compression loop. Added flat-body fallback in _classify_400() consistent with the parent classify_api_error() function's existing handling at line 297-298.	2026-04-09 11:11:34 -07:00
Teknium	1a3ae6ac6e	feat: structured API error classification for smart failover (#6514) ... Add agent/error_classifier.py with a priority-ordered classification pipeline that replaces scattered inline string-matching in the retry loop with structured error taxonomy and recovery hints. FailoverReason enum (14 categories): auth, auth_permanent, billing, rate_limit, overloaded, server_error, timeout, context_overflow, payload_too_large, model_not_found, format_error, thinking_signature, long_context_tier, unknown. ClassifiedError dataclass carries reason + recovery action hints (retryable, should_compress, should_rotate_credential, should_fallback). Key improvements over inline matching: - 402 disambiguation: 'insufficient credits' = billing (immediate rotate), 'usage limit, try again' = rate_limit (backoff first) - OpenRouter 403 'key limit exceeded' correctly classified as billing - Error cause chain walking (walks __cause__/__context__ up to 5 levels) - Body message included in pattern matching (SDK str() misses it) - Server disconnect + large session check ordered before generic transport catch so RemoteProtocolError triggers compression when appropriate - Chinese error message support for context overflow run_agent.py: replaced 6 inline detection blocks with classifier calls, net -55 lines. All recovery actions (pool rotation, fallback activation, compression, transport recovery) unchanged. 65 new unit tests + 10 E2E tests + live tests with real SDK error objects. Inspired by OpenClaw's failover error classification system.	2026-04-09 04:10:11 -07:00