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Enable dynamic tool output truncation by default (#225)

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- Changed truncate_all_tool_outputs default from false to true
- Updated schema documentation to reflect new default
- Added entry in README experimental features table
- Regenerated JSON schema

This prevents prompts from becoming too long by dynamically
truncating output from all tool calls, not just whitelisted ones.
Feature is experimental and enabled by default to help manage
context window usage across all tools.

Co-authored-by: sisyphus-dev-ai <sisyphus-dev-ai@users.noreply.github.com>
This commit is contained in:
Sisyphus
2025-12-25 16:26:27 +09:00
committed by GitHub
parent 08080a7b51
commit 7d09c48ae8
3 changed files with 3 additions and 2 deletions
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1
README.md
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@@ -887,6 +887,7 @@ Opt-in experimental features that may change or be removed in future versions. U
| ------------------------ | ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | ------------------------ | ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `aggressive_truncation` | `false` | When token limit is exceeded, aggressively truncates tool outputs to fit within limits. More aggressive than the default truncation behavior. Falls back to summarize/revert if insufficient. | | `aggressive_truncation` | `false` | When token limit is exceeded, aggressively truncates tool outputs to fit within limits. More aggressive than the default truncation behavior. Falls back to summarize/revert if insufficient. |
| `auto_resume` | `false` | Automatically resumes session after successful recovery from thinking block errors or thinking disabled violations. Extracts the last user message and continues. | | `auto_resume` | `false` | Automatically resumes session after successful recovery from thinking block errors or thinking disabled violations. Extracts the last user message and continues. |
| `truncate_all_tool_outputs` | `true` | Dynamically truncates output from all tool calls to prevent prompts from being too long. Helps manage context window usage across all tools, not just whitelisted ones. |
**Warning**: These features are experimental and may cause unexpected behavior. Enable only if you understand the implications. **Warning**: These features are experimental and may cause unexpected behavior. Enable only if you understand the implications.

2
src/config/schema.ts
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@@ -114,7 +114,7 @@ export const ExperimentalConfigSchema = z.object({
preemptive_compaction: z.boolean().optional(), preemptive_compaction: z.boolean().optional(),
/** Threshold percentage to trigger preemptive compaction (default: 0.80) */ /** Threshold percentage to trigger preemptive compaction (default: 0.80) */
preemptive_compaction_threshold: z.number().min(0.5).max(0.95).optional(), preemptive_compaction_threshold: z.number().min(0.5).max(0.95).optional(),
/** Truncate all tool outputs, not just whitelisted tools (default: false) */ /** Truncate all tool outputs, not just whitelisted tools (default: true) */
truncate_all_tool_outputs: z.boolean().optional(), truncate_all_tool_outputs: z.boolean().optional(),
}) })

2
src/hooks/tool-output-truncator.ts
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@@ -24,7 +24,7 @@ interface ToolOutputTruncatorOptions {
export function createToolOutputTruncatorHook(ctx: PluginInput, options?: ToolOutputTruncatorOptions) { export function createToolOutputTruncatorHook(ctx: PluginInput, options?: ToolOutputTruncatorOptions) {
const truncator = createDynamicTruncator(ctx) const truncator = createDynamicTruncator(ctx)
const truncateAll = options?.experimental?.truncate_all_tool_outputs ?? false const truncateAll = options?.experimental?.truncate_all_tool_outputs ?? true
const toolExecuteAfter = async ( const toolExecuteAfter = async (
input: { tool: string; sessionID: string; callID: string }, input: { tool: string; sessionID: string; callID: string },