From f05d669d5fcfaa9e5372eb0eb6f8aaaad32ce383 Mon Sep 17 00:00:00 2001
From: Ashwin Bhat <ashwin@anthropic.com>
Date: Mon, 18 Aug 2025 10:51:57 -0700
Subject: [PATCH] fix: prevent undefined directory creation when RUNNER_TEMP is
 not set (#461)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

When running tests locally, process.env.RUNNER_TEMP is undefined, causing
the code to literally create "undefined/claude-prompts/" directories in
the working directory. Added fallback to "/tmp" following the pattern
already used in src/mcp/github-actions-server.ts.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Claude <noreply@anthropic.com>
---
 src/create-prompt/index.ts | 4 ++--
 src/modes/agent/index.ts   | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/create-prompt/index.ts b/src/create-prompt/index.ts
index 5f6d6c7..18f9c32 100644
--- a/src/create-prompt/index.ts
+++ b/src/create-prompt/index.ts
@@ -836,7 +836,7 @@ export async function createPrompt(
       modeContext.claudeBranch,
     );
 
-    await mkdir(`${process.env.RUNNER_TEMP}/claude-prompts`, {
+    await mkdir(`${process.env.RUNNER_TEMP || "/tmp"}/claude-prompts`, {
       recursive: true,
     });
 
@@ -855,7 +855,7 @@ export async function createPrompt(
 
     // Write the prompt file
     await writeFile(
-      `${process.env.RUNNER_TEMP}/claude-prompts/claude-prompt.txt`,
+      `${process.env.RUNNER_TEMP || "/tmp"}/claude-prompts/claude-prompt.txt`,
       promptContent,
     );
 
diff --git a/src/modes/agent/index.ts b/src/modes/agent/index.ts
index f7d889c..d96ba84 100644
--- a/src/modes/agent/index.ts
+++ b/src/modes/agent/index.ts
@@ -45,7 +45,7 @@ export const agentMode: Mode = {
 
     // TODO: handle by createPrompt (similar to tag and review modes)
     // Create prompt directory
-    await mkdir(`${process.env.RUNNER_TEMP}/claude-prompts`, {
+    await mkdir(`${process.env.RUNNER_TEMP || "/tmp"}/claude-prompts`, {
       recursive: true,
     });
     // Write the prompt file - the base action requires a prompt_file parameter,
@@ -57,7 +57,7 @@ export const agentMode: Mode = {
       context.inputs.directPrompt ||
       `Repository: ${context.repository.owner}/${context.repository.repo}`;
     await writeFile(
-      `${process.env.RUNNER_TEMP}/claude-prompts/claude-prompt.txt`,
+      `${process.env.RUNNER_TEMP || "/tmp"}/claude-prompts/claude-prompt.txt`,
       promptContent,
     );