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[MM-13] Migrate desktop and CLI context assembly to ContextEngine #792
Description
MM-13: Migrate desktop and CLI context assembly to ContextEngine
Parent
Checkpoint
MC-3 ContextEngine ownership
What to build
Route desktop and CLI provider-visible context through the same ContextEngine contract used by headless.
Acceptance criteria
- Desktop and CLI use the same strategy identifiers and budget contract.
- Manual compact and session restart still work.
- Host policy may configure but cannot mutate assembled messages.
- Surface diagnostics use the shared schema.
- Compatibility adapter remains selectable during migration.
Required tests
- Desktop integration
- CLI integration
- manual compact
- restart
- cross-surface fixture consistency
Benchmark
Cross-surface deterministic replay; no model-cost benchmark beyond smoke is required.
Blocked by
Rollout and rollback
Per-surface flag selects the compatibility adapter while retaining ContextEngine ownership.
Activity
Astro-Han commentedon Aug 2, 2026
Superseded by #1615 (automatic long-term memory lifecycle, SQLite-based; accepted by maintainers 2026-07-30, PR ① #1770 merged). This MM-13 work item never landed outside draft PR #820 and is replaced by the #1615 design and its LongMemEval/MSC evaluation plan.