The extraction LLM was storing "User indicates current time is X" as
durable memories every time OpenClaw injected timestamp context into
messages. noah48 alone accumulated 10K+ timestamp memories.
Add explicit exclude rule: timestamps as standalone facts are never
worth storing, but timestamps anchoring real facts ("User installed
Ollama on 2026-03-21") should still be preserved.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
