minor udate

AGENTS.md

@@ -116,7 +116,7 @@ import (
 
 **Files**:
 - Prefer single word: `config.go`, `oauth.go`, `errors.go`
-- Use snake_case if needed: `discord_tokens.go`, `state_test.go`
+- Don't use snake_case except for tests: `state_test.go`
 - Test files: `*_test.go` alongside source files
 
 ### Error Handling
@@ -143,6 +143,7 @@ func DoSomething(cfg *Config, data string) error {
 ```
 
 **HTTP error helpers** (in handlers package):
+*Note: `msg` should be a frontend presentable message*
 - `throwInternalServiceError(s, w, r, msg, err)` - 500 errors
 - `throwBadRequest(s, w, r, msg, err)` - 400 errors
 - `throwForbidden(s, w, r, msg, err)` - 403 errors (normal)
@@ -215,7 +216,6 @@ func ConfigFromEnv() (any, error) {
 
 **Formatting**:
 - Use `gofmt` (standard Go formatting)
-- No tabs vs spaces debate - Go uses tabs
 
 **Types**:
 - Prefer explicit types over inference when it improves clarity