gonglingrui/text-truncator

Text Truncator Tool

Functionality

Intelligently truncate text while maintaining content integrity and semantic coherence, limiting text to a specified length.

Usage Scenarios

• Preprocess text that exceeds length limits to meet agent input requirements
• Extract key sections for text previews or summary generation to improve efficiency and readability
• Assist content creation by intelligently trimming generated long text to avoid redundancy

Core Capabilities

• Semantic-Priority Truncation: Prioritize truncation at natural semantic boundaries (periods, question marks, exclamation points) to maximize sentence integrity
• Paragraph Integrity: When semantic boundaries are insufficient, prioritize truncation at paragraph ends or line breaks to avoid breaking paragraph structure
• Precise Length Control: Strictly adhere to user-specified maximum length limits, ensuring output text does not exceed limits
• Truncation Marker Insertion (optional): Automatically add custom truncation markers (such as "...") at the end of truncated text to indicate content omission

Input Requirements

• Text Content: Original text to be truncated (string)
• Maximum Length Limit: Maximum length after text truncation (integer, such as character count or token count)
• Truncation Marker (optional): Custom truncation marker, such as "..." or "[content truncated]"

Output Format

[Text Truncation Report]

- Original text length: [integer] words/tokens
- Truncated length: [integer] words/tokens
- Truncation position: [position description, such as "at end of sentence X"] or "not truncated"

### Truncated Text
[truncated text content]

Constraints

• Truncated text length must strictly comply with maximum length limits
• Ensure truncated text remains as semantically coherent and complete as possible
• If text does not reach maximum length, do not truncate; return original text
• Output format must be structured, clearly displaying length information before and after truncation and truncated text content

Examples

See {baseDir}/references/examples.md for more detailed examples:

• examples.md - Contains truncation examples for different lengths, different truncation markers, and complex text structures

Detailed Documentation

See {baseDir}/references/examples.md for detailed guidance and cases on the text truncator tool.

Version History

| Version | Date | Changes | |---------|------|---------| | 2.1.0 | 2026-01-11 | Optimized description field; changed model to opus; optimized descriptions for functionality, core capabilities, input requirements, and output format; added usage scenarios, constraints, examples, and detailed documentation sections | | 2.0.0 | 2026-01-11 | Restructured according to official specifications | | 1.0.0 | 2026-01-10 | Initial version |