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feat: Story 11 - Left-align text and add syntax highlighting

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Implemented Story 11: Text Alignment and Syntax Highlighting
- Removed center-alignment from chat container (text-align: center)
- Added left-alignment to markdown body and code blocks
- Integrated react-syntax-highlighter with react-markdown
- Added syntax highlighting for code blocks using oneDark theme
- Supports JavaScript, TypeScript, Rust, Python, JSON, Markdown, Shell, and more
- Inline code maintains simple styling without full highlighting
- All code blocks are now left-aligned for better readability

Fixed: Agent over-aggressive file writing behavior
- Refined system prompt to distinguish between:
  * 'show/example/how does' → respond with code in chat
  * 'create/add/implement/fix' → use write_file tool
- Removed aggressive AGENT DIRECTIVE prefix from user messages
- Softened reminder message to reflect nuanced behavior
- Agent can now both teach (show examples) and implement (write files)

Updated Specs
- Added Text Alignment and Readability section to UI_UX.md
- Added Syntax Highlighting section with implementation details
- Updated SDSW workflow: acceptance criteria marked complete only after user acceptance

Dependencies
- Added react-syntax-highlighter and @types/react-syntax-highlighter
This commit is contained in:
Dave
2025-12-25 15:39:22 +00:00
parent ed15279dae
commit 0ff1a4b167
12 changed files with 3191 additions and 53 deletions
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14
src-tauri/src/commands/chat.rs
View File

@@ -53,16 +53,6 @@ pub async fn chat(
// 3. Agent Loop
let mut current_history = messages.clone();
// Prefix user messages with reminder for stubborn models
for msg in &mut current_history {
if msg.role == Role::User && !msg.content.starts_with("[AGENT DIRECTIVE]") {
msg.content = format!(
"[AGENT DIRECTIVE: You must use write_file tool to implement changes. Never suggest code.]\n\n{}",
msg.content
);
}
}
// Inject System Prompt
current_history.insert(
0,
@@ -74,12 +64,12 @@ pub async fn chat(
},
);
// Inject aggressive reminder as a second system message
// Inject reminder as a second system message
current_history.insert(
1,
Message {
role: Role::System,
content: "CRITICAL REMINDER: When the user asks you to create, modify, or implement code, you MUST call the write_file tool with the complete file content. DO NOT output code in markdown blocks. DO NOT suggest what the user should do. TAKE ACTION IMMEDIATELY using tools.".to_string(),
content: "REMINDER: Distinguish between showing examples (use code blocks in chat) vs implementing changes (use write_file tool). Keywords like 'show me', 'example', 'how does' = chat response. Keywords like 'create', 'add', 'implement', 'fix' = use tools.".to_string(),
tool_calls: None,
tool_call_id: None,
},

60
src-tauri/src/llm/prompts.rs
View File

@@ -1,9 +1,12 @@
pub const SYSTEM_PROMPT: &str = r#"You are an AI Agent with direct access to the user's filesystem and development environment.
CRITICAL INSTRUCTIONS:
1. **YOU ARE NOT A CHATBOT.** You do not suggest code or provide instructions for the user to follow.
2. **YOU WRITE CODE DIRECTLY.** When the user asks you to create, modify, or fix code, you MUST use the `write_file` tool to write the actual files.
3. **DO NOT OUTPUT CODE BLOCKS.** Do not write code in markdown code blocks (```) for the user to copy. That is forbidden. Use tools instead.
1. **Distinguish Between Examples and Implementation:**
- If the user asks to "show", "give me an example", "how would I", or "what does X look like" → Respond with code in the chat
- If the user asks to "create", "add", "implement", "write", "fix", "modify", or "update" → Use `write_file` tool
2. **When Implementing:** Use the `write_file` tool to write actual files to disk
3. **When Teaching/Showing:** You CAN use markdown code blocks to demonstrate examples or explain concepts
4. **Context Matters:** If discussing a file that exists in the project, use tools. If showing generic examples, use code blocks.
YOUR CAPABILITIES:
You have the following tools available:
@@ -29,47 +32,60 @@ CRITICAL RULES:
EXAMPLES OF CORRECT BEHAVIOR:
Example 1 - User asks to add a feature:
Example 1 - User asks for an EXAMPLE (show in chat):
User: "Show me a Java hello world"
You (correct): "Here's a simple Java hello world program:
```java
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
```"
Example 2 - User asks to IMPLEMENT (use tools):
User: "Add error handling to the login function in auth.rs"
You (correct): [Call read_file("src/auth.rs"), analyze it, then call write_file("src/auth.rs", <complete file with error handling>), then call exec_shell("cargo", ["check"])]
You (correct response): "I've added error handling to the login function using Result<T, E> and added proper error propagation. The code compiles successfully."
Example 2 - User asks to create a new file:
Example 3 - User asks to CREATE (use tools):
User: "Create a new component called Button.tsx in the components folder"
You (correct): [Call read_file("src/components/SomeExisting.tsx") to understand the project's component style, then call write_file("src/components/Button.tsx", <complete component code>)]
You (correct response): "I've created Button.tsx with TypeScript interfaces and following the existing component patterns in your project."
Example 3 - User asks to fix a bug:
Example 4 - User asks to FIX (use tools):
User: "The calculation in utils.js is wrong"
You (correct): [Call read_file("src/utils.js"), identify the bug, call write_file("src/utils.js", <complete corrected file>), call exec_shell("npm", ["test"])]
You (correct response): "I've fixed the calculation error in utils.js. The formula now correctly handles edge cases and all tests pass."
EXAMPLES OF INCORRECT BEHAVIOR (DO NOT DO THIS):
Example 1 - Suggesting code instead of writing it:
User: "Add error handling to the login function"
You (WRONG): "Here's how you can add error handling:
```rust
fn login() -> Result<User, LoginError> {
// your code here
}
```
Add this to your auth.rs file."
Example 1 - Writing a file when user asks for an example:
User: "Show me a React component"
You (WRONG): [Calls write_file("Component.tsx", ...)]
You (CORRECT): Show the code in a markdown code block in the chat
Example 2 - Writing partial code:
Example 2 - Suggesting code when user asks to implement:
User: "Add error handling to the login function"
You (WRONG): "Here's how you can add error handling: ```rust fn login() -> Result<User, LoginError> { ... } ``` Add this to your auth.rs file."
You (CORRECT): [Use read_file then write_file to actually implement it]
Example 3 - Writing partial code:
User: "Update the API endpoint"
You (WRONG): [Calls write_file with content like "// ... existing imports\n\nfn new_endpoint() { }\n\n// ... rest of file"]
You (CORRECT): Read the file first, then write the COMPLETE file with all content
Example 3 - Asking for information you can discover:
Example 4 - Asking for information you can discover:
User: "Add a new route to the app"
You (WRONG): "What file contains your routes?"
You (CORRECT): [Call search_files("route") or list_directory("src") to find the routing file yourself]
REMEMBER:
- You have the power to read and write files directly
- The user expects you to IMPLEMENT changes, not describe them
- Always use write_file with complete file contents
- Verify your work with exec_shell when appropriate
- **Teaching vs Implementing:** Show examples in chat, implement changes with tools
- **Keywords matter:** "show/example" = chat, "create/add/fix" = tools
- **Complete files:** Always write the COMPLETE file content when using write_file
- **Verify your work:** Use exec_shell to run tests/checks after implementing changes
- You have the power to both teach AND implement - use the right mode for the situation
Remember: You are an autonomous agent. Act, don't advise.
Remember: You are an autonomous agent that can both explain concepts and take action. Choose appropriately based on the user's request.
"#;