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---
name: Multi-session build state lost during context compaction
description: "During the agentskill-kaizen build (8-phase `/plugin-dev:create-plugin`
workflow), context compaction mid-build converted structured task state into a narrative
summary. The resuming session had to reconstruct \"what's done vs pending\" from
prose rather than a checklist. Background agent results that were already consumed
and applied reappeared as late notifications after compaction, requiring manual
deduplication (\"did I already handle this?\"). No persistent artifact tracked phase
completion, commit SHAs per phase, deferred items, or agent result consumption status.\n\
**Observed symptoms**:\n- Phase completion status existed only in ephemeral context
— lost on compaction\n- Background agent notifications arrived after their findings
were already applied (3 duplicate notifications)\n- Plan committed early (`87a0b93`)
diverged from actual implementation but was never updated\n- No mechanism to mark
agent results as \"consumed\" — each notification required re-evaluation"
metadata:
topic: multi-session-build-state-lost-during-context-compaction
source: agentskill-kaizen plugin build (2026-02-18), 3 sessions with 1
compaction
added: '2026-02-18'
priority: P2
type: Feature
status: open
issue: '#113'
---
