LibreChat/api/app/clients
Danny Avila 8bdc808074
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refactor: Optimize & Standardize Tokenizer Usage (#10777)
* refactor: Token Limit Processing with Enhanced Efficiency

- Added a new test suite for `processTextWithTokenLimit`, ensuring comprehensive coverage of various scenarios including under, at, and exceeding token limits.
- Refactored the `processTextWithTokenLimit` function to utilize a ratio-based estimation method, significantly reducing the number of token counting function calls compared to the previous binary search approach.
- Improved handling of edge cases and variable token density, ensuring accurate truncation and performance across diverse text inputs.
- Included direct comparisons with the old implementation to validate correctness and efficiency improvements.

* refactor: Remove Tokenizer Route and Related References

- Deleted the tokenizer route from the server and removed its references from the routes index and server files, streamlining the API structure.
- This change simplifies the routing configuration by eliminating unused endpoints.

* refactor: Migrate countTokens Utility to API Module

- Removed the local countTokens utility and integrated it into the @librechat/api module for centralized access.
- Updated various files to reference the new countTokens import from the API module, ensuring consistent usage across the application.
- Cleaned up unused references and imports related to the previous countTokens implementation.

* refactor: Centralize escapeRegExp Utility in API Module

- Moved the escapeRegExp function from local utility files to the @librechat/api module for consistent usage across the application.
- Updated imports in various files to reference the new centralized escapeRegExp function, ensuring cleaner code and reducing redundancy.
- Removed duplicate implementations of escapeRegExp from multiple files, streamlining the codebase.

* refactor: Enhance Token Counting Flexibility in Text Processing

- Updated the `processTextWithTokenLimit` function to accept both synchronous and asynchronous token counting functions, improving its versatility.
- Introduced a new `TokenCountFn` type to define the token counting function signature.
- Added comprehensive tests to validate the behavior of `processTextWithTokenLimit` with both sync and async token counting functions, ensuring consistent results.
- Implemented a wrapper to track call counts for the `countTokens` function, optimizing performance and reducing unnecessary calls.
- Enhanced existing tests to compare the performance of the new implementation against the old one, demonstrating significant improvements in efficiency.

* chore: documentation for Truncation Safety Buffer in Token Processing

- Added a safety buffer multiplier to the character position estimates during text truncation to prevent overshooting token limits.
- Updated the `processTextWithTokenLimit` function to utilize the new `TRUNCATION_SAFETY_BUFFER` constant, enhancing the accuracy of token limit processing.
- Improved documentation to clarify the rationale behind the buffer and its impact on performance and efficiency in token counting.
2025-12-02 12:22:04 -05:00
..
document 📦 fix: npm warnings; chore: bump deprecated packages (#4707) 2024-11-12 18:51:32 -05:00
llm ⚙️ chore: Resolve Build Warning, Package Cleanup, Robust Temp Chat Time (#9962) 2025-10-04 01:53:37 -04:00
output_parsers 🧭 fix: Add Base Path Support for Login/Register and Image Paths (#10116) 2025-11-21 11:25:14 -05:00
prompts 🤖 refactor: Improve Agent Handoff Context Tracking (#10553) 2025-11-17 16:57:51 -05:00
specs 🤖 refactor: Improve Agent Handoff Context Tracking (#10553) 2025-11-17 16:57:51 -05:00
tools 🖥️ feat: Add Proxy Support for Tavily API Tool (#10770) 2025-12-02 09:11:56 -05:00
AnthropicClient.js 📂 refactor: Cleanup File Filtering Logic, Improve Validation (#10414) 2025-11-10 19:05:30 -05:00
BaseClient.js refactor: Optimize & Standardize Tokenizer Usage (#10777) 2025-12-02 12:22:04 -05:00
GoogleClient.js 📂 refactor: Cleanup File Filtering Logic, Improve Validation (#10414) 2025-11-10 19:05:30 -05:00
index.js 👤 feat: User Placeholder Variables for Custom Endpoint Headers (#7993) 2025-06-23 12:39:27 -04:00
OllamaClient.js 🦙 fix: Ollama Custom Headers (#10314) 2025-10-30 14:48:10 -04:00
OpenAIClient.js 📂 refactor: Cleanup File Filtering Logic, Improve Validation (#10414) 2025-11-10 19:05:30 -05:00
TextStream.js 🧹 chore: Cleanup Logger and Utility Imports (#9935) 2025-10-01 23:30:47 -04:00