Struct Client

internal/llm/llm.go:211–231

// idleTimeoutFromEnv resolves CODEHAMR_IDLE_TIMEOUT to a duration, falling back
// to streamIdleTimeout when unset or unparseable. Accepts a Go duration string
// ("45m", "1h30m") or a bare number read as seconds. Lives here, not in main's
// applyEnvOverrides, because it's purely an llm concern and both Client call
// sites (startup + /models switch) go through New.
func idleTimeoutFromEnv() time.Duration {
	v := strings.TrimSpace(os.Getenv("CODEHAMR_IDLE_TIMEOUT"))
	if v == "" {
		return streamIdleTimeout
	}
	if d, err := time.ParseDuration(v); err == nil && d > 0 {
		return d
	}
	if n, err := strconv.Atoi(v); err == nil && n > 0 {
		// Overflow check: a huge bare-seconds value (e.g. nanoseconds pasted
		// where seconds were meant) can wrap the multiply to a small positive
		// duration, silently killing every live-but-slow stream mid-prefill.
		if d := time.Duration(n) * time.Second; d/time.Second == time.Duration(n) {
			return d
		}
	}
	return streamIdleTimeout
}

// defaultRetryBackoff paces the transparent resends after a transient