Editing Commands

All edit commands read the new code from stdin. This makes them composable with code generators, formatters, or other tools.

edit replace

Replace a symbol’s entire body.

cat new_impl.rs | krait edit replace <symbol>

Example:

cat updated_service.ts | krait edit replace OrderService

The LSP locates the symbol’s exact start and end, including its closing brace. The new code from stdin replaces everything in between.

edit insert-after

Insert code after a symbol’s closing brace.

echo 'fn helper() {}' | krait edit insert-after <symbol>

edit insert-before

Insert code before a symbol’s declaration.

echo '#[derive(Debug)]' | krait edit insert-before MyStruct

rename

Cross-file rename using LSP workspace/rename. Updates all references automatically.

krait rename <old-name> <new-name>

fix

Apply LSP quick fixes to a file.

krait fix [path]

format

Run the LSP formatter on a file.

krait format <path>

Stdin Patterns

# From a file
cat new_body.rs | krait edit replace MyStruct

# From a heredoc
krait edit replace MyStruct << 'EOF'
pub struct MyStruct {
    name: String,
}
EOF

# From a command
generate-code --symbol MyStruct | krait edit replace MyStruct

Tip: Avoid echo for multi-line content — use heredoc or pipe from a file.