mathiasandClaude Opus 4.8
e9b5a3f3e7
The first friendly-pilot live run produced zero summaries: koala/phi4-mini hit three silent failure modes — 8k context overflow on long transcripts (HTTP 400), intermittent malformed JSON (highlights as a bare string), and no fallback wired at all (summarizer.New(primary, nil)). Keep phi4-mini as the fast primary and add resilience around it: - Ordered endpoint chain (summarizer.NewChain): phi4-mini → koala/phi4-14b (local) → berget/mistral-small (worst-case external). All reached through the one LiteLLM gateway by alias. - A parse failure now advances the chain like a transport error — the old Primary→Fallback shape returned the parse error without trying anyone else. - Tolerant parse: highlights/takeaways coerce string→[]string, absorbing the common small-model quirk without spending a fallback round-trip. - Transcript truncation (TAPIR_MAX_TRANSCRIPT_CHARS=18000) prevents the overflow rather than recovering from it; validated to fit phi4-mini's 8k window. - Bounded completion budget (TAPIR_SUMMARY_MAX_TOKENS=1500) — the old 8192 budget itself contributed to the overflow. Local-first guarantee preserved by ordering: external endpoint is tried only after every local one fails. TAPIR_CLOUD_FALLBACK_MODEL="" disables it entirely for client/NDA deployments. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>