Automate Stale PR Management with Codex and Orchestration Loops
A reproducible workflow using Codex to automatically close or revive stale pull requests, with parallelized build and review threads for efficiency.
Practical Summary
Learn how to use Codex to automate the cleanup and revival of stale PRs in your repositories, saving manual review time and streamlining workflows with an orchestration loop.
Why It Matters
This workflow reduces developer toil on repetitive PR management tasks, improves repository hygiene, and enables parallel work on code changes, directly impacting productivity and reducing operational costs.
Step 1: Configure Codex to Scan Stale PRs
Set up Codex to automatically review your repository's pull requests. Focus on identifying stale PRs—those that are outdated or no longer relevant—to close or revive them based on predefined criteria like inactivity or obsolescence.
Step 2: Implement the Orchestration Loop
Create a simple loop where Codex is instructed to maintain your repos. Schedule it to wake up every 5 minutes and direct work to threads. This allows for parallelization and easy steering of tasks as needed, using orchestrator, triage, autoreview, and computer use skills.
Step 3: Handle Revived PRs with Parallel Threads
For each revived PR, spawn two dedicated threads: one to build or update the code, and a second to review the changes. This parallel approach ensures efficient processing and reduces bottlenecks in your development workflow.
