Commit Graph

3 Commits

Author SHA1 Message Date
Badgerbees 97dec16769 fix(providers): improve context overflow detection and classification 2026-03-26 01:07:56 +07:00
Tong Niu d6e88da8ba fix(pkg):do regex precompile insteadd on the fly (#911)
* fix(pkg/providers):do regex precompile insteadd on the fly

* fix(providers): replace HTTP-specific regex with standalone status code matcher

The precompiled HTTP regex used uppercase "HTTP" which never matched
because ClassifyError lowercases the input. Replace it with a
case-insensitive word-boundary pattern that matches any standalone
3-digit status code (300-599), which also subsumes the HTTP/x.x case.

Add test case for standalone status code extraction.

* fix(providers): restore http regex and add standalone status code matcher

Restore the http-prefixed regex (without unnecessary (?i) flag since
input is already lowercased by ClassifyError) as a mid-priority pattern
to reduce false positives. Add a standalone word-boundary matcher as a
fallback for bare status codes like "429". Fix test to use lowercased
input matching the actual calling convention.

* perf(tools): move path regex compilation from per-call to package init

The path regex in guardCommand was compiled on every call. Hoist it
to a package-level var (absolutePathPattern) alongside defaultDenyPatterns
in a single var block, so it is compiled once at init time.

* style(tools): move inline comment to fix golines formatting error
2026-03-01 23:06:31 +11:00
Leandro Barbosa 6e7149509a feat: add model fallback chain with error classification
Add 2-layer fallback system (text + image) with automatic candidate
resolution. Includes error classifier (~40 patterns), per-provider
cooldown (exponential backoff), and model reference parsing.

- FailoverError/FailoverReason types for structured error handling
- ErrorClassifier with rate_limit, billing, auth, timeout patterns
- FallbackChain with cooldown management and candidate rotation
- ModelRef parser for provider/model string format
- 128 tests, 95%+ coverage
2026-02-13 12:12:12 -03:00