diff --git a/modules/_ai-tools/AGENTS.md b/modules/_ai-tools/AGENTS.md
new file mode 100644
index 0000000..a6056ed
--- /dev/null
+++ b/modules/_ai-tools/AGENTS.md
@@ -0,0 +1,23 @@
+# AGENTS.md
+
+## Version Control
+
+- Use `jj` for version control, not `git`.
+- `jj tug` is an alias for `jj bookmark move --from closest_bookmark(@-) --to @-`.
+- Never attempt historically destructive Git commands.
+- Make small, frequent commits.
+
+## Scripting
+
+- Use Nushell (`nu`) for scripting.
+- Do not use Python, Perl, Lua, awk, or any other scripting language. You are programatically blocked from doing so.
+
+## Validation
+
+- Do not ignore failing tests or checks, even if they appear unrelated to your changes.
+- After completing and validating your work, the final step is to run the project's full validation and test commands and ensure they all pass.
+
+## Workflow
+
+- Always complete the requested work.
+- Do not end with “If you want me to…” or “I can…”; take the next necessary step and finish the job without waiting for additional confirmation.
diff --git a/modules/ai-tools.nix b/modules/ai-tools.nix
index 983d653..4811772 100644
--- a/modules/ai-tools.nix
+++ b/modules/ai-tools.nix
@@ -12,6 +12,7 @@
 		];
 
 		home.file = {
+			"AGENTS.md".source = ./_ai-tools/AGENTS.md;
 			".pi/agent/extensions/pi-elixir" = {
 				source = inputs.pi-elixir;
 				recursive = true;