fix(project-context): Integrate PR #320 path fix and test hooks (#323)

* fix(project-context): correct parent transcript path resolution

Agent transcripts are at .../project/{sessionId}/subagents/agent-{agentId}.jsonl
Parent transcripts are at .../project/{sessionId}.jsonl

The previous code incorrectly computed the parent path by only going up one
directory level. This fix properly navigates from the subagents/ directory
to the project root to find the parent transcript.

Integrates fix from PR #320.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix(github-orchestration): fix gh pr create command

The `gh pr create` command doesn't support `--json` flag.
Instead, parse the PR URL from stdout and extract the PR number.

Also use heredoc for body to handle multiline content properly.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* [unknown] Subagent task completed (#326)

Auto-generated from stacked PR workflow.

Files: 1 new, 1 edited, 0 deleted

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

Author: sylvansys

plugins/github-orchestration/shared/hooks/utils/stacked-branches.ts

@@ -543,12 +543,13 @@ export async function createPRWithAutoMerge(
     body: string;
   }
 ): Promise<{ success: boolean; prNumber?: number; prUrl?: string; error?: string }> {
-  // Create PR
-  const escapedTitle = options.title.replace(/"/g, '\\"');
-  const escapedBody = options.body.replace(/"/g, '\\"').replace(/\n/g, '\\n');
-
+  // Create PR using heredoc for proper body handling
+  // gh pr create outputs the PR URL on success
   const createResult = await execCommand(
-    `gh pr create --head "${options.head}" --base "${options.base}" --title "${escapedTitle}" --body "${escapedBody}" --json number,url`,
+    `gh pr create --head "${options.head}" --base "${options.base}" --title "${options.title.replace(/"/g, '\\"')}" --body "$(cat <<'PRBODYEOF'
+${options.body}
+PRBODYEOF
+)"`,
     cwd,
     60000
   );
@@ -560,20 +561,20 @@ export async function createPRWithAutoMerge(
     };
   }
 
-  let prNumber: number;
-  let prUrl: string;
+  // Parse PR URL from stdout (gh pr create prints the URL)
+  const prUrl = createResult.stdout.trim();
 
-  try {
-    const prData = JSON.parse(createResult.stdout);
-    prNumber = prData.number;
-    prUrl = prData.url;
-  } catch {
+  // Extract PR number from URL (e.g., https://github.com/owner/repo/pull/123)
+  const prNumberMatch = prUrl.match(/\/pull\/(\d+)$/);
+  if (!prNumberMatch) {
     return {
       success: false,
-      error: 'Failed to parse PR creation response',
+      error: `Failed to parse PR number from URL: ${prUrl}`,
     };
   }
 
+  const prNumber = parseInt(prNumberMatch[1], 10);
+
   // Enable auto-merge
   const mergeResult = await execCommand(
     `gh pr merge ${prNumber} --auto --squash`,

plugins/github-orchestration/test-stacked-pr-v2.md

@@ -0,0 +1,9 @@
+# Stacked PR Test v2
+
+Created at: 2026-01-24T07:00:00Z
+Purpose: Test that SubagentStop hook creates PR after fix
+
+Expected outcome:
+- Branch created on SubagentStart
+- File committed on SubagentStop
+- PR created and linked

plugins/project-context/shared/hooks/utils/task-state.ts

@@ -336,7 +336,13 @@ export async function getTaskEdits(
   }
 
   // Find parent session transcript
-  const dir = path.dirname(agentTranscriptPath);
+  // Agent transcripts are at: .../project/{sessionId}/subagents/agent-{agentId}.jsonl
+  // Parent transcripts are at: .../project/{sessionId}.jsonl
+  let dir = path.dirname(agentTranscriptPath); // .../sessionId/subagents/
+  if (path.basename(dir) === 'subagents') {
+    dir = path.dirname(dir); // .../sessionId/
+  }
+  dir = path.dirname(dir); // .../project/
   const parentPath = path.join(dir, `${sessionId}.jsonl`);
 
   try {