Cron Job Doctor MCP
Diagnoses scheduled GitHub Actions workflows for anomalies like stuck jobs, retry storms, duration creep, or recent failures.
README
Cron Job Doctor MCP
A remote MCP server that diagnoses scheduled GitHub Actions workflows: finds jobs that have gone silently stuck, are retrying in a loop, are taking progressively longer to run, or just failed on their last run.
Tools exposed:
list_scheduled_workflows— find every workflow in a repo with aschedule:triggerget_workflow_runs— raw run history for one workflowdiagnose_workflow— run history + anomaly flags (stuck / retry storm / duration creep / recent failure)
1. Prerequisites
- A GitHub account with at least one repo that has a scheduled workflow
- A fine-grained Personal Access Token
scoped to the repo(s) you want to check, with read-only access to:
- Actions
- Contents
- Metadata
- A Vercel account
2. Push to GitHub
git init
git add .
git commit -m "Initial commit"
git remote add origin git@github.com:<you>/cron-job-doctor-mcp.git
git push -u origin main
3. Import into Vercel
- Go to vercel.com/new → Import Git Repository → select this repo (install the Vercel GitHub App first if you haven't already)
- In Environment Variables, add
GITHUB_TOKENwith your PAT - Click Deploy
Every future git push to main auto-deploys.
4. Connect it to Claude / Cowork
Add a custom connector pointing at:
https://<your-vercel-domain>/api/mcp
Then try something like: "Check my repo me/my-project for any cron jobs
that need attention."
Local development
npm install
cp .env.example .env.local # fill in GITHUB_TOKEN
npm run dev
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