LibreChat/api/server/controllers
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
..
agents 🆔 feat: Add OpenID Connect Federated Provider Token Support (#9931) 2025-11-21 09:51:11 -05:00
assistants refactor: Optimize & Standardize Tokenizer Usage (#10777) 2025-12-02 12:22:04 -05:00
auth 🧹 chore: Cleanup Logger and Utility Imports (#9935) 2025-10-01 23:30:47 -04:00
AuthController.js 🆔 feat: Add OpenID Connect Federated Provider Token Support (#9931) 2025-11-21 09:51:11 -05:00
Balance.js 🏗️ refactor: Extract DB layers to data-schemas for shared use (#7650) 2025-05-30 22:18:13 -04:00
EditController.js 🕐 feat: Configurable Retention Period for Temporary Chats (#8056) 2025-06-25 17:16:26 -04:00
EndpointController.js refactor: Integrate Capabilities into Agent File Uploads and Tool Handling (#5048) 2024-12-19 13:04:48 -05:00
mcp.js 🐛 fix: Error Handling in MCP Tool List Controller (#10570) 2025-11-18 18:28:57 -05:00
ModelController.js 🧹 chore: Cleanup Logger and Utility Imports (#9935) 2025-10-01 23:30:47 -04:00
PermissionsController.js 🔄 refactor: Principal Type Handling in Search Principals to use Array 2025-08-13 16:24:26 -04:00
PluginController.js 🧰 refactor: Decouple MCP Tools from System Tools (#9748) 2025-09-21 07:56:40 -04:00
PluginController.spec.js 🧰 refactor: Decouple MCP Tools from System Tools (#9748) 2025-09-21 07:56:40 -04:00
tools.js 🛜 refactor: Streamline App Config Usage (#9234) 2025-08-26 12:10:18 -04:00
TwoFactorController.js 🧑‍💻 refactor: Secure Field Selection for 2FA & API Build Sourcemap (#9087) 2025-08-15 18:55:49 -04:00
UserController.js 🗑️ fix: Remove All User Metadata on Deletion (#10534) 2025-11-21 12:03:26 -05:00