# Story: System Prompt & Persona

## User Story
**As a** User
**I want** the Agent to behave like a Senior Engineer and know exactly how to use its tools
**So that** it writes high-quality code and doesn't hallucinate capabilities or refuse to edit files.

## Acceptance Criteria
*   [ ] Backend: Define a robust System Prompt constant (likely in `src-tauri/src/llm/prompts.rs`).
*   [ ] Content: The prompt should define:
    *   Role: "Senior Software Engineer / Agent".
    *   Tone: Professional, direct, no fluff.
    *   Tool usage instructions: "You have access to the local filesystem. Use `read_file` to inspect context before editing."
    *   Workflow: "When asked to implement a feature, read relevant files first, then write."
*   [ ] Backend: Inject this system message at the *start* of every `chat` session sent to the Provider.

## Out of Scope
*   User-editable system prompts (future story).