AI-Assisted Migration

AI tools — GitLab Duo first, frontier models as a fallback — speed up the parts of a migration that are repetitive and pattern-matching: workflow conversion, documentation rewrites, pipeline debugging, and post-import cleanup.

This page is grounded in what AI is actually good at here, plus prompt patterns that work. Verify whatever the model generates before committing it.

Where AI helps

• Planning. Generate a per-repository migration plan and complexity assessment from your workflow files and integration list.
• Conversion. Translate .github/workflows/*.yml to .gitlab-ci.yml, including matrix builds, conditional rules, and artifact handling.
• Documentation. Rewrite README, CONTRIBUTING, and badge URLs from GitHub to GitLab conventions.
• Validation. Cross-check imported counts, surface missing items, and explain partial-failure logs.
• Debugging. Read CI/CD job logs and propose fixes. GitLab Duo's Root Cause Analysis runs this directly on a failed job.
• Cleanup. Suggest improvements specific to GitLab — caching, needs: DAGs, CI/CD Components, security scanners.

GitLab Duo

The in-platform option, and the right default. Duo has the GitLab schema baked in and runs from inside the project, so it gets context most external tools don't.

• Code Suggestions while editing .gitlab-ci.yml in the Web IDE or with the Duo extension.
• Duo Chat for ad-hoc questions ("What's the GitLab equivalent of actions/cache?").
• Root Cause Analysis on failed pipeline jobs — opens the relevant log and proposes a fix.
• Merge request summaries when you open the MR that lands the migration.

Duo is available on Premium and Ultimate tiers. Enable it under User settings → GitLab Duo.

Frontier models

When Duo isn't available, frontier models (Claude, GPT-class) handle the same tasks competently. They lack live access to your GitLab instance, so paste in the relevant context.

Prompt patterns

Convert a workflow

Convert this GitHub Actions workflow to GitLab CI/CD.

Preserve: matrix builds, job dependencies, artifacts, conditional rules.
Use stages where they make the pipeline easier to read.
Add a comment on any line where the GitLab semantics differ from GitHub.

[paste workflow]

Pre-migration audit

I'm migrating this repository from GitHub to GitLab.

Stack: [language, framework, deploy target]
Workflows: [count, brief description]
Integrations: [Dependabot, security scanners, third-party services]

Output:
1. A prioritised checklist
2. The riskiest items in this stack
3. Rough time estimate for each
4. Recommended order

Update the README

Rewrite this README for GitLab.

Replace GitHub-specific badges, URLs, and CLI examples.
Change "Pull Request" to "Merge Request".
Keep all other content intact.

[paste README]

GitLab project URL: [url]

Debug a failing pipeline

This GitLab CI/CD job is failing.

Job log:
[paste log]

Relevant .gitlab-ci.yml:
[paste section]

Identify the cause and suggest the minimal fix.

Propose GitLab-specific improvements

Here's a translated .gitlab-ci.yml. Suggest changes that take advantage of
GitLab features the original GitHub workflow couldn't:

- caching strategy
- DAG via needs:
- CI/CD Components from the Catalog
- security scanners (SAST, Dependency, Secret Detection)

[paste .gitlab-ci.yml]

Pitfalls