Real-world observation: OpenAI embedding API takes 200-400ms typical,
plus pgvector query overhead, the 500ms budget was being exceeded
frequently, silently dropping memory recall. Agent typing delay is
already 2-15s humanized, so a 2s recall budget is well within UX
tolerance and gives ~4-5x margin over typical embedding latency.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
