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Make CompactionEntry and CompactionResult generic with details field

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- CompactionEntry<T> and CompactionResult<T> now have optional details?: T
- appendCompaction() accepts optional details parameter
- Hooks can return compaction.details to store custom data
- Enables structured compaction with ArtifactIndex (see #314)
- Fix CompactionResult export location (now from compaction.ts)
- Update plan with remaining compaction refactor items
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Mario Zechner 2025-12-26 22:05:03 +01:00
parent efb1036d8e
commit d96375b5e5
9 changed files with 54 additions and 24 deletions
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14
packages/coding-agent/docs/session-tree-plan.md
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@ -58,8 +58,18 @@ Reference: [session-tree.md](./session-tree.md)
### Compaction Refactor
- [ ] Clean up types passed to hooks (currently messy mix of `CompactionEntry`, `CompactionResult`, hook's `compaction` content)
- [ ] Ensure consistent API between what hooks receive and what they return
- [x] Use `CompactionResult` type for hook return value
- [ ] Make `CompactionEntry<T>` generic with optional `details?: T` field for hook-specific data
- [ ] Make `CompactionResult<T>` generic to match
- [ ] Update `SessionEventBase` to pass `sessionManager` and `modelRegistry` instead of derived fields
- [ ] Update `before_compact` event:
- Pass `preparation: CompactionPreparation` instead of individual fields
- Pass `previousCompactions: CompactionEntry[]` (newest first) instead of `previousSummary?: string`
- Keep: `customInstructions`, `model`, `signal`
- Drop: `resolveApiKey` (use `modelRegistry.getApiKey()`), `cutPoint`, `entries`
- [ ] Update hook example `custom-compaction.ts` to use new API
Reference: [#314](https://github.com/badlogic/pi-mono/pull/314) - Structured compaction with anchored iterative summarization needs `details` field to store `ArtifactIndex` and version markers.
### Branch Summary Design