core[minor]: Allow for simple tool schema to be passed to bindTools

[local-dev-korbit-ai-mentor]

Allows for a more concise schema to be passed to models. This is not intended to be used in Agents or similar since it has no function attached, and is more similar to .withStructuredOutput.

TODO:

• after releasing, bump min core version for all.

Description by Korbit AI

Note

This feature is in early access. You can enable or disable it in the Korbit Console.

What change is being made?

Allow for simple tool schema to be passed to bindTools by adding ToolSchema interface and updating BaseChatModel to accept ToolSchema.

Why are these changes being made?

This change enhances the flexibility of the bindTools function by allowing it to accept a simpler tool schema, making it easier to define and use tools with minimal configuration. This approach simplifies the integration process and improves code maintainability.

Summary by CodeRabbit

• New Features

  • Introduced a ToolSchema interface, enhancing tool definitions with name, description, and schema properties.
  • Expanded the BaseChatModel class to accept ToolSchema, improving flexibility in handling tools within chat interactions.

• Bug Fixes

  • Improved type definitions to ensure compatibility with new tool structures, enhancing overall functionality.

[local-dev-korbit-ai-mentor]

Clone of the PR langchain-ai/langchainjs#6253

[korbit-ai]

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Walkthrough

This update introduces significant enhancements to the BaseChatModel class and the ToolSchema interface. The BaseChatModel now accommodates a new type, ToolSchema, improving its flexibility for tool interactions. Additionally, the ToolSchema interface defines a structured format for tools, including mandatory and optional properties, thereby enriching the overall integration and functionality within the chat model framework.

Changes

Files	Change Summary
langchain-core/src/language_models/chat_models.ts langchain-core/src/tools/index.ts	- Added ToolSchema type to BaseChatModel for enhanced flexibility. - Introduced a new ToolSchema interface defining properties: name, description, and schema.

Poem

🐰 In a world of code, I hop and play,
New tools sprout forth, brightening the way.
With schemas that structure, the models now blend,
A dance of data, where joys never end!
So here’s to the changes, both clever and spry,
A leap into futures, oh my, oh my! 🌟

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[korbit-ai]

I have reviewed your code and did not find any issues!

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[kavitaganeshan]

@coderabbitai review

[kavitaganeshan]

/review

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[codiumai-pr-agent-free]

PR Reviewer Guide 🔍

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Key issues to review Type Compatibility Ensure that the newly added ToolSchema type is fully compatible with existing tool definitions and doesn't introduce any breaking changes in the BaseChatModel class. Documentation The new ToolSchema interface lacks JSDoc comments for the interface itself. Consider adding a description to improve code documentation.

[coderabbitai]

Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 1296334 and 19321ca.

Files selected for processing (2)

• langchain-core/src/language_models/chat_models.ts (2 hunks)
• langchain-core/src/tools/index.ts (1 hunks)

Additional comments not posted (3)

langchain-core/src/tools/index.ts (1)

50-63: Introduce ToolSchema interface.

The ToolSchema interface is well-defined, providing a clear structure for tool definitions. The use of ZodObjectAny for the schema property allows for flexible parameter validation. This addition enhances the flexibility and maintainability of tool-related code.

langchain-core/src/language_models/chat_models.ts (2)

36-36: Add ToolSchema to imports.

The addition of ToolSchema to the imports reflects its integration into the BaseChatModel class, enabling the use of the new tool schema within chat models.

---

187-187: Expand bindTools method to include ToolSchema.

The inclusion of ToolSchema in the bindTools method enhances the method's capability to handle diverse tool configurations. This change supports the PR's goal of improving flexibility and maintainability in tool integration.

[furwellness]

Zero comments from coderabbit