Context

This PR fixes issue #5189 where Cerebras API returns an error when tools have mixed strict parameter values. The error occurs because some tools (MCP tools) have strict: true while others don't have the parameter set, causing Cerebras to reject the request with: "All tools must have the same value for the 'strict' parameter."

Implementation

The fix ensures all tools sent to Cerebras have strict: false by modifying the convertToolsForOpenAI method in src/api/providers/cerebras.ts. This approach:

• Sets strict: false for all tools regardless of their source (native or MCP)
• Maintains compatibility with Cerebras API requirements
• Follows the same pattern used by other providers that don't support strict mode

Key changes:

• Modified convertToolsForOpenAI to explicitly set strict: false on all tool definitions
• Added comprehensive test coverage to verify the fix works correctly
• Tests confirm that both native and MCP tools are handled consistently

Screenshots

How to Test

1. Configure Kilo Code to use Cerebras as the API provider
2. Set up at least one MCP server with tools (or use any scenario where MCP tools are available)
3. Attempt to use a tool in a conversation that would trigger tool calling
4. Before the fix: You would see an error about mixed strict parameter values
5. After the fix: Tool calling should work without errors

Alternatively, run the test suite:

cd src
pnpm test api/providers/__tests__/cerebras.spec.ts

##Get in touch

Discord:@codegoddy


This PR description provides all the necessary context for reviewers to understand the issue, the solution, and how to verify it works correctly.