- Circuit breaker: consecutive timeouts (default 3) mark model as degraded for 60s,
failing fast instead of blocking gateway with repeated timeout attempts
- Per-model timeout tiers: Opus 60s base, Sonnet 45s, Haiku 30s, plus adaptive
scaling by prompt size (~15s/100k chars for Opus)
- Structured JSON logging for spawns, timeouts, breaker state changes
- Late close guard: prevents double-settle when timeout fires before proc.close
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Reduced default CLAUDE_TIMEOUT from 300s to 120s for faster fallback
- Added CLAUDE_FIRST_BYTE_TIMEOUT (default 30s): aborts early if Claude
CLI produces no output, preventing silent hangs
- First-byte timing logged for every request for observability
- Health endpoint now reports firstByteTimeout in config
- Default timeout: 300s → 120s (CLAUDE_TIMEOUT)
- New: first-byte timeout at 30s (CLAUDE_FIRST_BYTE_TIMEOUT) — aborts early
if Claude CLI produces no stdout, triggering faster fallback
- Pool disabled by default (POOL_SIZE=0) — on-demand spawning is now the
default; set CLAUDE_POOL_SIZE>0 to re-enable
- Health endpoint now reports timeout and firstByteTimeout values
- Startup log shows pool mode (disabled/on-demand vs active)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The proxy previously defaulted to bare "claude" command which fails in
macOS LaunchAgent where PATH is minimal. Now resolves the binary at
startup via: CLAUDE_BIN env → well-known paths → which fallback.
Fails fast with clear error if binary cannot be found.
Also enhances /health to report claudeBinary and claudeBinaryOk status.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>