diff --git a/CLI-Reference.md b/CLI-Reference.md
index 7a0ff9c..93881ec 100644
--- a/CLI-Reference.md
+++ b/CLI-Reference.md
@@ -98,6 +98,16 @@ Therefore, the content of all of the game's bundles can be listed at once, using
 dtmt bundle list "<path to game>\bundle"
 ```
 
+#### Specifying command line tools
+
+Certain operations, such as decompiling Lua, require external command line tools. By default, dtmt will attempt to use a binary named like the corresponding flag (e.g. for `--ljd`, the binary name is `ljd`) and expects that to be made available via PATH.
+
+Alternatively, the flag can be used to point to a different executable. It accepts any of the following forms:
+
+* A single file name: A binary with that name must be available via PATH
+* A relative or absolute path to a file: Use the binary as-is
+  * Special case: If the file is named `main.py`, a binary called `python` is expected to be available via PATH
+* A command string: A single string with executable and arguments separated by whitespace. See [shlex](https://docs.rs/shlex/latest/shlex/index.html) for information on parsing and compatibility.
 
 #### Bundle Decompress