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Improved the message history pruning strategy in LLMExecutor. Previously, the code naively sliced the last N messages, which could leave 'tool' result messages orphaned without their corresponding 'assistant' tool call message. This change implements a smarter pruneMessages function that backtracks from the cut point to ensure tool call/result pairs remain intact in the context window.


PR created automatically by Jules for task 2138557981897317126 started by @mhingston

- Add `pruneMessages` function to `llm-executor.ts`
- Update `executeLlmStep` to use robust pruning instead of naive slicing
- Ensure orphaned tool results are re-attached to their parent assistant message
- Fallback to naive slicing if parent is not found or history is malformed
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@mhingston mhingston marked this pull request as ready for review January 10, 2026 11:52
@mhingston mhingston merged commit 786fadf into main Jan 10, 2026
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2 participants