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Improve before_compact hook: add messagesToKeep, replace apiKey with resolveApiKey

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Mario Zechner 2025-12-24 12:41:22 +01:00
parent e4283294c8
commit d9a542763a
8 changed files with 51 additions and 24 deletions
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packages/coding-agent/docs/hooks.md
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@ -180,13 +180,15 @@ For `before_branch` and `branch` events, `event.targetTurnIndex` contains the en
For `before_compact` events, additional fields are available:
- `event.cutPoint`: Where the context will be cut (`firstKeptEntryIndex`, `isSplitTurn`)
- `event.messagesToSummarize`: Messages that will be summarized
- `event.messagesToSummarize`: Messages that will be summarized and discarded
- `event.messagesToKeep`: Messages that will be kept after the summary (recent turns)
- `event.tokensBefore`: Current context token count
- `event.model`: Model to use for summarization
- `event.apiKey`: API key for the model
- `event.resolveApiKey`: Function to resolve API key for any model (checks settings, OAuth, env vars)
- `event.customInstructions`: Optional custom focus for summary (from `/compact` command)
To get all messages since the last compaction: `[...event.messagesToSummarize, ...event.messagesToKeep]`
Return `{ compactionEntry }` to provide a custom summary instead of the default. The `compactionEntry` must have: `type: "compaction"`, `timestamp`, `summary`, `firstKeptEntryIndex` (from `cutPoint`), `tokensBefore`.
For `compact` events (after compaction):