Added some opinionated coding style guidelines.

AGENTS.md

@@ -22,6 +22,7 @@ You **MUST** read each of these documents before contributing to this repository
 ---
 
 ## Critical Design Rules
+
 ### 1. Only Store or Cache State When It Serves a Purpose
 
 **Never store or cache state unless doing so meets at least one of:**
@@ -40,3 +41,57 @@ Proposal: run `which tailscale` at startup, set a `binaryAvailable` boolean, and
 2. Creates a new class of edge cases that must be tested: the binary existed when the flag was set but later disappears. The code must now defend against both “flag is false” and “flag is wrong.”  
 3. Unreliable guard for a failure the code must handle anyway. A missing binary produces a clear exit-code failure on the real command. Checking the flag *and* handling the failure duplicates work.
 Reference: #11.
+
+
+## Code Style Guidance
+
+### 1. **NEVER** Write Conditional and Loop Blocks Without Curly Braces
+
+**ALWAYS** use curly braces, `{}`, for if, else, while, and for blocks, even when they contain only a single statement. This ensures that any future additions to the block remain within the intended control flow. Reference: `CVE-2014-1266`.
+
+**GOOD** Examples:
+```javascript
+if (myvar) {
+    do_action();
+}
+```
+```javascript
+if (myvar) { do_action(); }
+```
+```javascript
+while (myvar) {
+    do_action();
+}
+```
+```javascript
+while (myvar) { do_action(); }
+```
+
+**BAD** Examples:
+```javascript
+if (myvar) 
+    do_action();
+```
+```javascript
+if (myvar) do_action();
+```
+```javascript
+while (myvar) 
+    do_action();
+```
+```javascript
+while (myvar) do_action();
+```
+
+### 2. **ALWAYS** Use Semicolons to End Statements
+
+For maximum clarity and readability, always end lines using semicolons. 
+
+**GOOD** Example:
+```javascript
+do_action();
+```
+**BAD** Example:
+```javascript
+do_action()
+```