Claude Code Routines: A Beginner's Guide

Claude
Written By Adam Dittrich

Most people saw Anthropic announce Claude Code Routines and thought: "Another automation tool. We already have Make, Zapier, n8n."

Not quite. This is a different category.

Here's what actually changed, why it matters for your business, and how to build your first routine in the next 30 minutes.

For context: I build AI systems for founders who want to cut manual work without hiring. I've been testing Routines since it dropped, and the gap between it and drag-and-drop tools is bigger than most people realize.

What Routines Does That Wasn't Possible Before

For years, automation was the same formula. Drag-and-drop builders. Connect tool A to tool B. Click. Save. Hope it works.

The problem: when something breaks (and it will), you're stuck. The automation hits an edge case. The tool changes its API. The workflow can't think about the problem. You wake up at 3 AM to fix it.

Claude Code Routines flip this.

A routine isn't a workflow builder. It's Claude running on Anthropic's cloud infrastructure with access to your code repositories, your GitHub events, and external tools you connect. When it runs, it doesn't just execute a preset sequence. It thinks. It reasons. It adapts.

Here's what that opens up:

  1. Thinking through problems, not just executing them. A PR review routine doesn't just check if tests pass. It reads your codebase, learns your patterns, and applies your team's review standards to every PR. It catches security issues. It suggests performance fixes. It leaves inline comments on specific lines. A drag-and-drop tool can't do this. Claude can.

  2. Code generation and fixes, not just status checks. When your production app breaks, a routine doesn't just alert you. It clones your repo, reads the error logs, finds the root cause, writes the fix, tests it, and opens a pull request. You review. You merge. Done. No more 2 AM debugging marathons.

  3. Context across systems. Your Slack channel has a support request. Your Linear board has related issues. Your GitHub has recent changes. A drag-and-drop builder connects these as separate steps. Claude connects them as context. It reads all 3, ties them together, and takes the right action.

  4. Plain English, not visual programming. You don't click. You describe the job in English. "Review every PR for security issues and performance problems. Leave comments. Post a summary to Slack." Done. Claude builds the logic.

  5. Fixes without rebuilds. If your routine isn't working well, you don't redesign the workflow. You tell Claude what to improve. The routine adapts the next run. Drag-and-drop tools require you to rebuild.

This is why Routines isn't another automation tool. It's a different category.

If this is the kind of breakdown you want every week, I send one at my newsletter.

How Routines Compare to n8n

Let's be direct: n8n, Make, Zapier — same playbook. Visual builders. Pre-built connectors. Workflow as flow chart.

They're good for simple stuff: "When a new row is added to Airtable, send a Slack message."

They fall apart on anything complex.

Where n8n hits its limits (and Routines solves it):

  1. Complexity = spaghetti flows. Your workflow has 50+ steps, 10+ conditions, retry logic, error handling. The diagram becomes unreadable. Maintenance is a nightmare. With Routines your prompt stays readable. Your intent is clear.

  2. No thinking about the problem. n8n is procedural. Step 1, then 2, then 3. No reasoning. Claude thinks about your code and your business logic. Same inputs to n8n produce the same outputs. Same inputs to Claude can produce better outputs because it thought deeper.

  3. Connector hell. Need a custom integration? n8n has 300+ prebuilt connectors. Sounds great until the tool you need isn't there, or the endpoint you need isn't supported. You're stuck. Claude connects via HTTP, custom scripts, and MCP connectors. You can integrate anything.

  4. Error handling is brittle. When n8n hits an error, it stops or retries blindly. Claude reads the error. Works out the cause. Adapts. "The API returned a 429 rate limit error. Let me wait 5 minutes and retry." No configuration needed.

  5. Cost scales with complexity. n8n charges per task or per execution. Complex workflows = more tasks = bigger bills. Claude charges per token. A 100-line prompt runs on the same token budget whether the logic is simple or complex.

Where n8n still wins: Simple integrations. Tons of prebuilt connectors. Visual learners might prefer dragging blocks.

Where Routines wins: Complex automation. Context handling. Edge cases. Code generation. Custom integrations. Production workflows.

The teams using n8n for simple 3-step integrations are fine. The ones trying to automate complex business logic on n8n are drowning in spaghetti flows. Routines is for them.

How to Build a Routine (It's Simple)

Most people overcomplicate this.

Here's the shortcut.

Step 1: Think about the job, not the steps.

Don't ask: "What steps do I need to automate?"

Ask: "What's the outcome I want?"

Examples:

  • "Automatically review every PR for security issues"

  • "Triage support emails and assign them to the right team member"

  • "Generate a weekly report from production logs and send to leadership"

  • "Monitor for API failures and open a fix PR"

One sentence. That's your routine.

Step 2: Write the prompt in English.

Go to claude.ai/code/routines and click New routine.

In the prompt field, describe the job:

"You are a code reviewer. When a PR is submitted:

  1. Read the code changes

  2. Check for security vulnerabilities

  3. Look for performance issues

  4. Check against our coding standards

  5. Leave inline comments on specific lines

  6. Post a summary to Slack

Be thorough but constructive. Focus on issues, not style preferences."

That's the routine. No configuration. No clicking.

Step 3: Point it at your repos and connectors.

Add your GitHub repository. Claude clones it at runtime. Add your Slack connector. Claude can post messages. Add your environment variables if needed (API keys, etc.). Done.

Step 4: Choose a trigger.

  • Schedule: "Run every weeknight at 9 PM"

  • GitHub: "Run when a PR is opened"

  • API: "Run when an external tool POSTs to this endpoint"

Pick one or combine. One routine can have all 3.

Step 5: Click Create and watch it work.

Your first routine runs. Check the logs. Refine the prompt if needed. That's it.

Total time: 10–15 minutes.

No engineers needed. No visual programming. No complex config.

Step-by-Step: Your First Routine (PR Review)

Let's build a real example. You'll have a working routine in the next 30 minutes.

What you're building

A routine that:

  • Runs every time a PR is opened on your repo

  • Reviews the code for security, performance, and style issues

  • Leaves detailed comments on problem lines

  • Posts a summary to Slack

Prerequisites

  • GitHub account with a repository

  • Claude Pro or higher (Routines needs Claude Code on the web enabled)

  • Slack workspace with a channel for notifications (optional, better with it)

Step 1: Go to claude.ai/code/routines

Click "New routine."

Step 2: Name your routine

Name: "Automated PR Code Review"

Step 3: Write the prompt

Paste this into the prompt field:

You are an expert code reviewer for our development team.

When you receive a pull request:

1. Clone the repository and read the changes

2. Review the code for:
- Security vulnerabilities (SQL injection, XSS, auth issues, credential exposure)
- Performance issues (N+1 queries, inefficient loops, missing caching)
- Code quality (unclear variable names, missing error handling, design patterns)
- Testing (are critical paths tested?)

3. For each issue found:
- Identify the exact file and line number
- Leave an inline comment on GitHub explaining the issue
- Suggest a fix (don't just criticize)

4. Post a summary comment on the PR with:
- Number of issues found
- Severity breakdown (critical, high, medium, low)
- Overall assessment ("Ready to merge" or "Needs work")

5. If critical security issues are found, post an alert to Slack

Be thorough but supportive. The goal is to make the code better.

Step 4: Select your repository

Click "Add repository" and select the GitHub repo you want to review PRs for.

GitHub will prompt you to install the Claude GitHub App if you haven't already. Do it. This lets Claude receive webhook events when PRs are opened.

Step 5: Select your environment

Use the default environment for now. This gives Claude standard network access and basic environment variables.

Step 6: Add connectors

If you have Slack connected, it's automatically included. If not, skip for now.

Step 7: Add a GitHub trigger

Under "Select a trigger":

  • Choose "GitHub event"

  • Event type: "Pull request"

  • Action: "pull_request.opened"

  • Leave filters empty (triggers on all PRs)

Step 8: Review and create

Double-check everything looks right. Click "Create routine."

Your Routine Is Live

The next time someone opens a PR on your repo, Claude will review it. You'll see inline comments and a summary in GitHub. If you added Slack, you'll get an alert there too.

How to Test It

Don't want to wait for a PR? Go to the routine's detail page and click "Run now." It will try to review a recent PR from your repo.

How to Improve It

The first run probably won't be perfect. Check the results. If Claude missed something, update the prompt. Click "Edit routine" and adjust. Run again.

Examples:

  • If it's too nitpicky: "Focus only on security and performance, not style preferences"

  • If it's missing issues: "Pay special attention to database queries and API calls"

  • If comments are too long: "Keep comments short, 1 sentence per issue"

Each run gets better.

What This Opens Up

You now have a PR review routine. The real value is seeing what else is possible.

Once this is working, you can build:

  • Backlog triage. Routine reads new issues, applies labels, assigns owners

  • Deploy verification. Routine checks if production is healthy after each deploy

  • Documentation drift detection. Routine flags docs that reference changed APIs

  • Support ticket triage. Routine reads support emails, categorizes them, creates tickets

  • Weekly reporting. Routine pulls data from multiple sources, writes the report, sends it

Each one takes 15 minutes to set up. Each one replaces a manual, repetitive task.

The Bottom Line

Claude Code Routines isn't another automation tool.

It's automation for things that were too complex to automate before.

n8n is good for simple integrations. Routines is good for reasoning about your code, your data, your business logic. Different tools for different jobs.

The teams moving fast right now aren't building complex n8n workflows. They're describing what they want to Claude and getting it done in 10 minutes.

That's the play.

Start with the PR review routine above. Get it working. See what else you can automate.

If you want more weekly breakdowns on building AI systems, you can grab my free newsletter

Adam Dittrich



http://www.adam-one.com
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