fix: use of system prompt

[milancermak]

The way to set a system prompt for Claude is via a designated system parameter, not as a message with an "assistant" role (that actually tells Claude that that message was his response). This PR fixes the bug.

Summary by CodeRabbit

• Refactor
  • Simplified the message structure when sending requests to the Anthropic API.
  • Improved system prompt handling in the LLM client.

[coderabbitai]

Walkthrough

The pull request modifies the analyze method in the LLMClient class within the packages/core/src/core/llm-client.ts file. The change simplifies the message structure sent to the Anthropic API by directly assigning the system prompt and removing a separate message object with the "assistant" role. The system prompt is now conditionally set to an empty string if not provided, while maintaining the existing error handling and response parsing logic.

Changes

File	Change Summary
packages/core/src/core/llm-client.ts	Modified analyze method to simplify Anthropic API message structure by directly assigning system prompt

Poem

🐰 A Rabbit's API Refactor Delight 🤖
Messages trimmed, structure so neat
System prompt now direct and sweet
Anthropic's call, no extra fluff
Code simplified - that's rabbit stuff!

Hop hop hooray! 🎉

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Reviewing files that changed from the base of the PR and between b17c2af and 40f3626.

📒 Files selected for processing (1)

• packages/core/src/core/llm-client.ts (1 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• packages/core/src/core/llm-client.ts

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[milancermak]

I actually think the system prompt should be set in the LLMClient at init time - my mental model is that you want it to be "active" during the whole session - but I'm still not 100% familiar with the codebase so maybe it does not make sense here? Thoughts?

[ponderingdemocritus]

System prompt should be dynamic based on what you are calling - so it will change depending on the prompts