Cursor integration

CI/CD Pipeline Failing on Cursor-Generated Code

Code that Cursor generated works locally but fails your CI/CD pipeline. GitHub Actions, GitLab CI, CircleCI, or another automation platform reports lint errors, type check failures, broken tests, or build errors on code that runs perfectly on your development machine.

This is a common disconnect between AI-assisted development and automated quality gates. Cursor generates code that compiles and runs but may not pass strict linting rules (ESLint, Prettier), type checking (TypeScript strict mode), or existing tests. The development experience is smooth because you might have less strict local settings or skip running the full test suite.

The pipeline failure blocks deployments and forces you to retroactively fix issues that could have been caught earlier, often requiring multiple fix-and-push cycles that slow down your delivery.

Error Messages You Might See

ESLint: 23 problems (15 errors, 8 warnings) error TS2322: Type 'string | undefined' is not assignable to type 'string' Jest: 5 tests failed, 12 passed Module not found: Can't resolve './components/Header' Prettier: Code style issues found in 8 files
ESLint: 23 problems (15 errors, 8 warnings)error TS2322: Type 'string | undefined' is not assignable to type 'string'Jest: 5 tests failed, 12 passedModule not found: Can't resolve './components/Header'Prettier: Code style issues found in 8 files

Common Causes

  • Linting rules stricter in CI — CI runs ESLint/Prettier with the project's full rule set, while your local editor might have relaxed settings or auto-fix on save that masks issues
  • TypeScript strict mode in CI only — The pipeline runs tsc --noEmit with strict settings, catching any types, unused variables, and implicit returns that Cursor generates
  • Missing test updates — Cursor changed implementation code but didn't update corresponding test files, causing test assertions to fail
  • Different Node/Python/runtime version — CI uses a specific runtime version that differs from your local environment, causing syntax or API incompatibilities
  • Missing environment variables — Build-time environment variables available locally aren't configured in the CI environment
  • Import path case sensitivity — macOS file system is case-insensitive but CI Linux runners are case-sensitive, so import './Components/Header' works locally but fails in CI

How to Fix It

  1. Run the full CI checks locally before pushing — Add a script like "ci": "npm run lint && npm run typecheck && npm run test" to package.json and run it before committing Cursor's changes
  2. Fix linting issues with auto-fix — Run npx eslint --fix . and npx prettier --write . to automatically resolve formatting and style issues
  3. Match local and CI runtime versions — Use .nvmrc, .python-version, or .tool-versions to pin the same runtime version locally and in CI
  4. Configure Cursor rules for your project — Add a .cursorrules file that instructs the AI to follow your linting rules, use strict TypeScript types, and maintain consistent import casing
  5. Add pre-commit hooks — Use Husky and lint-staged to run linting and type checking on staged files before each commit, catching issues immediately
  6. Check import path casing — Verify all import paths match the exact file/directory casing. Use ESLint plugin eslint-plugin-import with the no-unresolved rule

Real developers can help you.

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Frequently Asked Questions

How do I make Cursor follow my project's linting rules?

Create a .cursorrules file in your project root with instructions like: 'Follow ESLint and Prettier rules. Use TypeScript strict mode. Never use any type. Always add return types to functions.' Cursor will reference this file when generating code.

Should I fix CI failures manually or regenerate with Cursor?

For simple lint/format issues, run the auto-fix tools (eslint --fix, prettier --write). For type errors or test failures, it's often faster to fix manually than to prompt Cursor again, as AI may introduce new issues while fixing old ones.

Related Cursor Issues

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