diff --git a/module-runtime-rules/src/rules.rs b/module-runtime-rules/src/rules.rs
index a891098..9590fd3 100644
--- a/module-runtime-rules/src/rules.rs
+++ b/module-runtime-rules/src/rules.rs
@@ -157,8 +157,8 @@ fn eval_suggest(
 	if select_list.is_empty() {
 		suggests.push(suggest);
 	} else {
-		for exe in select_list {
-			let eval_suggest = suggest.clone().replace("{{selection}}", &exe);
+		for selection in select_list {
+			let eval_suggest = suggest.clone().replace("{{selection}}", &selection);
 			suggests.push(eval_suggest);
 		}
 	}
diff --git a/rules.md b/rules.md
index 1edbe9b..86a736c 100644
--- a/rules.md
+++ b/rules.md
@@ -53,24 +53,34 @@ sudo {{command}} '''
 
 The placeholder is evaluated as following:
 
-- `{{command}}`: All the command without any modification.
-- `{{command[1]}}`: The first argument of the command (the command itself has index of 0). Negative values will count from reverse.
-- `{{command[2:5]}}`: The second to fifth arguments. If any of the side is not specified, then it defaults to the start (if it is left) or the end (if it is right).
-- `{{typo[2](fix1, fix2)}}`: This will try to change the second argument to candidates in the parenthesis. The argument in parentheses must have at least 2 values. Single arguments are reserved for specific matches, for instance, `path` to search all commands found in the `$PATH` environment, or the `{{shell}}` placeholder, among others.
-- `{{select[3][selection1, selection2]}}`: A derivative of `typo` placeholder. Will create a suggestion for each selection in the parenthesis. The argument in parentheses also must have at least 2 values. Single arguments are reserved for specific selections, for instance, `path` to search all commands found in the `$PATH` environment with the minimum linguistic distance, or the `{{shell}}` placeholder.
-	- Index is optional as it only has effect when using with `path`, and defaults to 0.
-- `{{opt::<Regular Expression>}}`: Optional patterns captured in the command with RegEx ([see regex crate for syntax](https://docs.rs/regex-lite/latest/regex_lite/#syntax)). Note that all patterns matching this placeholder will be removed from indexing.
-- `{{cmd::<Regular Expression>}}`: Get the matching captures from the last command. Unlike `{{opt}}`, this won't remove the string after matching
-- `{{err::<Regular Expression}}`: Get the matching captures from the error message.
-- `{{shell(<shell commands>)}}`: Replace with the output of the shell command. This placeholder can be used along `{{typo}}` as its only argument, where each newline will be evaluated to a candidate.
+- `{{command}}`: All the command without any modification
+- `{{command[1]}}`: The first argument of the command (the command itself has index of 0)
+	- Negative values will count from reverse.
+- `{{command[2:5]}}`: The second to fifth arguments
+	- If any of the side is not specified, then it defaults to the start (if it is left) or the end (if it is right)
+- `{{typo[2](fix1, fix2)}}`: Try to change the second argument to candidates in the parenthesis.
+	- The argument in parentheses must have at least 2 values
+	- Single arguments are reserved for specific matches, for instance, `path` to search all commands found in the `$PATH` environment, or the `{{shell}}` placeholder, among others
+- `{{select[3](selection1, selection2)}}`: A derivative of `typo` placeholder. Will create a suggestion for each selection in the parenthesis
+	- The argument in parentheses also must have at least 2 values
+	- Single arguments are reserved for specific selections, for instance, `path` to search all commands found in the `$PATH` environment with the minimum shared linguistic distance, or the `{{shell}}` placeholder
+	- To avoid permutations and combinations, only one instance is evaluated. If you need to apply the same selection in multiple places, use `{{selection}}`
+	- Index is optional as it only has effect when using with `path`, and defaults to `0`
+- `{{opt::<Regular Expression>}}`: Optional patterns captured in the command with RegEx ([see regex crate for syntax](https://docs.rs/regex-lite/latest/regex_lite/#syntax))
+	- All patterns matching this placeholder will be removed from indexing
+- `{{cmd::<Regular Expression>}}`: Get the matching captures from the last command
+	- Unlike `{{opt}}`, this won't remove the string after matching
+- `{{err::<Regular Expression}}`: Get the matching captures from the error message
+- `{{shell(<shell commands>)}}`: Replace with the output of the shell command
+	- Can be used along `{{typo}}` or `{{select}}` as its only argument, where each newline will be evaluated to a candidate/selection
 
 Suggestions can have additional conditions to check. To specify conditions, add a `#[...]` at the first line (just like derive macros in Rust). Available conditions:
 
-- `executable`: Check whether the argument can be found in path.
-- `cmd_contains`: Check whether the last user input contains the argument.
-- `err_contains`: Check whether the error of the command contains the argument.
-- `length`: Check whether the given command has the length of the argument.
-- `min_length`: Check whether the given command has at least the length of the argument.
-- `max_length`: Check whether the given command has at most the length of the argument.
-- `shell`: Check if the current running shell is the argument.
+- `executable`: Check whether the argument can be found in path
+- `cmd_contains`: Check whether the last user input contains the argument
+- `err_contains`: Check whether the error of the command contains the argument
+- `length`: Check whether the given command has the length of the argument
+- `min_length`: Check whether the given command has at least the length of the argument
+- `max_length`: Check whether the given command has at most the length of the argument
+- `shell`: Check if the current running shell is the argument