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fix: skip inserting prunable tools list when empty #139

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Merged
Tarquinen merged 1 commit into from
Dec 15, 2025
Merged

fix: skip inserting prunable tools list when empty #139

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7 changes: 7 additions & 0 deletions lib/messages/prune.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,10 @@ const buildPrunableToolsList = (
logger.debug(`Prunable tool found - ID: ${numericId}, Tool: ${toolParameterEntry.tool}, Call ID: ${toolCallId}`)
})

if (lines.length === 0) {
return ""
}

return `<prunable-tools>\nThe following tools have been invoked and are available for pruning. This list does not mandate immediate action. Consider your current goals and the resources you need before discarding valuable tool outputs. Keep the context free of noise.\n${lines.join('\n')}\n</prunable-tools>`
}

Expand All @@ -52,6 +56,9 @@ export const insertPruneToolContext = (
}

const prunableToolsList = buildPrunableToolsList(state, config, logger, messages)
if (!prunableToolsList) {
return
}

let nudgeString = ""
if (state.nudgeCounter >= config.strategies.pruneTool.nudge.frequency) {
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