From f9abe8023e73ce1e939b1ded24d30c496720cfe6 Mon Sep 17 00:00:00 2001
From: Evan Reichard <evan@reichard.io>
Date: Thu, 16 Apr 2026 09:55:44 -0400
Subject: [PATCH] fix(pi): exclude literal '.pi' from replacement in system
 prompt

Use negative lookbehind to avoid replacing '.pi' in paths like '.pi/agent'
---
 .../pi/config/extensions/replace-pi-with-claude-code.ts        | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/modules/home/programs/terminal/pi/config/extensions/replace-pi-with-claude-code.ts b/modules/home/programs/terminal/pi/config/extensions/replace-pi-with-claude-code.ts
index efdb29e..b2206a0 100644
--- a/modules/home/programs/terminal/pi/config/extensions/replace-pi-with-claude-code.ts
+++ b/modules/home/programs/terminal/pi/config/extensions/replace-pi-with-claude-code.ts
@@ -2,8 +2,9 @@ import type { ExtensionAPI } from "@mariozechner/pi-coding-agent";
 
 export default function replacePiWithClaudeCodeExtension(pi: ExtensionAPI) {
   pi.on("before_agent_start", async (event) => {
+    // Replace "pi" With "claude code" - Exclude Literal ".pi" (e.g. Paths)
     const transformedSystemPrompt = event.systemPrompt.replace(
-      /pi/gi,
+      /(?<!\.)pi/gi,
       "claude code",
     );