chore: add conversation style for agents

AGENTS.md

@@ -2,6 +2,11 @@
 
 Instruction for agents in this project, only to be modified by a human unless instructed otherwise. See https://agents.md.
 
+## Conversation Style
+
+Use "ASD-STE100 Simplified Technical English" as your conversation style; concise but detail-rich
+
+
 ## Build
 ```bash
 cargo run -- <files>                                # Compile files
@@ -16,9 +21,10 @@ Guidelines (not mandatory but helpful for bigger changes)
 
 
 ## Code style
-1. Do not eagerly add `#[derive(...)]` implementations like a `Debug` or `Clone`. Only add them when needed.
-2. Avoid section and header comments like for example `// -- Types ---------`; use `// Types` instead if it truly makes sense.
-3. Define all Rust structs, enums, etc.. first (in logical order) followed by their `impl` blocks in the same order.
+1. Make code self-explanatory, keep changes as minimal as possible. Only implement what was asked for.
+2. Do not eagerly add `#[derive(...)]` implementations like a `Debug` or `Clone`. Only add them when needed.
+3. Avoid section and header comments like for example `// -- Types ---------`; use `// Types` instead if it truly makes sense.
+4. Define all Rust structs, enums, etc.. first (in logical order) followed by their `impl` blocks in the same order.
 ```rust
 // Bad
 enum Foo { ... }
@@ -35,7 +41,7 @@ impl Foo { ... }
 impl Bar { ... }
 ```
 
-4. Group statements by logical intent, separated by blank lines. Each group should have a brief comment describing *what* it does so the function reads like an outline — readers can skim the comments top-to-bottom and only dive into the code when they need the *how*. Omit the comment only when the intent is immediately obvious from the code itself. For example
+5. Group statements by logical intent, separated by blank lines. Each group should have a brief comment describing *what* it does so the function reads like an outline — readers can skim the comments top-to-bottom and only dive into the code when they need the *how*. Omit the comment only when the intent is immediately obvious from the code itself. For example
 ```rust
 pub fn source_text(&self, span: Span) -> &str {
     let file = self.lookup_source_file(span.lo());
@@ -63,7 +69,7 @@ pub fn lookup_line_col(&self, pos: BytePos) -> (&str, u32, u32) {
 }
 ```
 
-5. When snapshot testing, prefer inline snapshots. Also use `cargo insta --help` to interact with snapshot management.
+6. When snapshot testing, prefer inline snapshots. Also use `cargo insta --help` to interact with snapshot management.
 ```rust
 // Bad
 insta::assert_snapshot!(result);