[Concept] The Generational Context Architecture (GCA)

Thanks, that clarification helps. If the shadow agent observes actions and the primary agent writes into Obsidian as it progresses, then I would read GCA less as a late summary-only handoff and more as continuous external working state plus scheduled handoff. That addresses part of my concern. The remaining issue, for me, is authority inside the KB. Which entries are canon, which are hypotheses, which are raw observations, which are stale, which are failed paths, and which are user-approved constraints? If the successor reads a plausible KB without those distinctions, it may still inherit drift, just in a more organized form. So I think the key benchmark is not only whether the handoff feels smooth, but whether the successor preserves constraints, provenance, rejected paths, and open conflicts better than ordinary compaction or a simple handoff.md baseline.