Day 2: Autonomous PR Analysis

Yesterday you learned to work with an AI coding agent — using it to explore code, refine stories, write tests, and build features. Today you will build something that works on its own.

What we are building

An autonomous workflow that analyzes dependency update PRs (Renovate / Dependabot):

Reads the PR diff and release notes
Runs the test suite before merging
Merges the PR locally
Reruns tests and compares the results
Synthesizes everything into a PR comment with a merge recommendation

When you are done, you will have a working script on your machine that processes a real PR end-to-end — no human in the loop.

Why dependency PRs?

Dependency updates are the perfect first target for automation:

They are repetitive — every project gets dozens per month
They are deterministically verifiable — tests either pass or they don’t
The analysis is structured — version diff, release notes, test comparison
The risk assessment follows a pattern — breaking changes, security fixes, behavioral changes

If you can automate this, the same pattern applies to any PR analysis workflow.

What you will use

Tool	Purpose
Copilot CLI	Your coding agent — autopilot mode for autonomous execution
Git	Cloning, merging, branch management
Forgejo API + `tea` CLI	Fetching PRs, posting comments (uses your API token)
Your project’s test suite	Verification before and after merge

How today works

This is not a step-by-step exercise like Day 1. Instead:

Read the Architecture page to understand the workflow
Study the Reference Implementation to learn from a real run
Follow the Build Guide — which asks you to apply your Day 1 techniques to build this yourself
If time allows, explore CI/CD Integration

You have the techniques from yesterday. Today you apply them to a real problem.

Target project

You will work on the ETF-validator project. If you prefer to use a different project, it must have active or historical Renovate/Dependabot PRs — the workflow needs a real PR to analyze.

Ready? Start with Architecture to understand what you are building.