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Tackling Technical Debt with AI: A Practical Guide

January 6, 20268 Min.
Philip Blatter
Philip Blatter
Founder & CEO

Your tech debt backlog is 200 tickets long and nobody wants to touch it. Good news: AI agents love the boring tasks your team keeps avoiding.

The Most Unpopular Backlog

Every team has it. The tech debt backlog. 200 tickets, some open for 2 years. "Dependency Update," "Migrate to new API," "Add tests for payment module," "Refactor user service."

Nobody wants to touch it. Understandable — it's thankless work. No feature launch, no user feedback, no demo day moment. Just cleaning up.

But the debt grows. And eventually, it blocks everything.

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Why AI Is Perfect for Tech Debt

Tech debt tasks have a characteristic that makes them ideal for AI: they're clearly defined, repetitive, and require few creative decisions.

The Top 5 AI-Friendly Tech Debt Tasks

1. Dependency Updates

Update packages, fix breaking changes, adjust tests. An AI agent handles this in an afternoon for the entire project.

2. Increasing Test Coverage

Writing tests for existing, untested code. AI analyzes the code and generates meaningful unit and integration tests.

3. Code Style Unification

In codebases that have grown over time, you often find 3 different coding styles. AI can bring the entire codebase to a unified standard.

4. Removing Dead Code

Unused functions, old feature flags, commented-out code. AI identifies and removes it — after all tests confirm nothing breaks.

5. API Migrations

From REST v1 to v2. From callbacks to promises. From one library to another. Mechanical, codebase-wide transformations.

The "Tech Debt Sprint" with AI

Instead of treating tech debt as an ongoing topic that never gets prioritized: dedicate one sprint per quarter entirely to debt reduction — with AI as an accelerator.

Preparation (1 Day)

  • Prioritize the tech debt backlog: What slows the team down the most?
  • Split tasks into 3 categories:

- AI-only: Dependency updates, style fixes, dead code - AI-assisted: Test generation, refactoring with context - Human-only: Architecture decisions, complex migrations

Execution (1–2 Weeks)

Days 1–2: AI-Only Tasks

  • Run dependency updates
  • Dead code analysis and removal
  • Style unification
  • Automatic PR creation for each change

Days 3–7: AI-Assisted Tasks

  • Test generation for the most important modules
  • Refactoring individual services (AI implements, human reviews)
  • API migrations

Days 8–10: Human-Only Tasks + Review

  • Complex architecture changes
  • Review all AI-generated PRs
  • Run integration tests

Retrospective

  • How many tickets were completed? (Target: 30–50 per sprint)
  • How much time per ticket with AI vs. manual estimate?
  • Which tasks were good for AI, which weren't?
  • What's left for the next tech debt sprint?

Measurable Results

What teams report after an AI-powered tech debt sprint:

  • 3–5x more tickets completed than in a normal sprint
  • Test coverage increases by 15–25 percentage points
  • Dependency updates fully completed instead of "the 3 most important ones"
  • Developer satisfaction increases — yes, really. The team finally sees progress on the backlog

The Long-Term Strategy

One tech debt sprint per quarter is good. But even better:

The "20-Minute Rule"

Every day, 20 minutes: delegate one small tech debt task to AI. A dependency update here, a missing test there. Over a quarter, this adds up to dozens of completed tickets — without anyone planning sprints.

Automated Watchers

Use AI to proactively detect tech debt:

  • Scan for dependencies that haven't been updated in 6+ months
  • Identify modules without tests
  • Detect code duplication
  • Weekly report: "Your tech debt situation this week"

Conclusion

Technical debt is the workout nobody wants to do. AI is the personal trainer that handles the boring exercises.

Your team focuses on the tasks that require human judgment. AI takes care of the rest. This isn't cheating. It's smart.

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