Last updated: March 15, 2026

layout: default title: “Cursor AI Not Autocompleting TypeScript” description: “To fix Cursor AI not autocompleting TypeScript, open the Command Palette (Cmd+Shift+P or Ctrl+Shift+P), run ‘TypeScript: Restart TS server,’ and verify that AI” date: 2026-03-15 last_modified_at: 2026-03-15 author: theluckystrike permalink: /cursor-ai-not-autocompleting-typescript-fix/ reviewed: true score: 8 categories: [troubleshooting] intent-checked: true voice-checked: true tags: [ai-tools-compared, troubleshooting, artificial-intelligence] —

To fix Cursor AI not autocompleting TypeScript, open the Command Palette (Cmd+Shift+P or Ctrl+Shift+P), run “TypeScript: Restart TS server,” and verify that AI Completions and Tab Completion are enabled in Cursor settings. If completions still fail, clear the Cursor cache folder, check for extension conflicts by launching in safe mode, and ensure your project’s TypeScript version matches the one shown in Cursor’s status bar.

Key Takeaways

Why Cursor AI Stops Autocompleting TypeScript

Several factors can cause Cursor’s AI autocompletion to fail in TypeScript projects. Understanding these causes helps you identify the right solution quickly.

TypeScript language server issues are the most frequent culprit. Cursor relies on a healthy TypeScript language server to analyze your code and provide accurate completions, and when the language server crashes, stalls, or provides incorrect diagnostics, autocompletion suffers. Incorrect workspace configuration can also prevent completions from appearing, since Cursor needs proper project detection to apply the right context for AI suggestions. Third-party extensions that modify editor behavior may override or conflict with Cursor’s AI completion triggers, and an outdated Cursor version can cause compatibility issues with newer TypeScript features or language server protocols.

Step-by-Step Fixes for TypeScript Autocompletion

Fix 1: Restart the TypeScript Language Server

The TypeScript language server powers much of Cursor’s understanding of your code. Restarting it often resolves stalled completions.

Open the Command Palette with Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux), then type “TypeScript: Restart TS server” and select the option. Alternatively, you can add this keybinding for quick access:

{
  "key": "cmd+shift+r",
  "command": "typescript.restartTsServer"
}

After restarting, wait a few moments for the server to reinitialize. You should see a notification in the bottom status bar indicating the TypeScript server is ready. Test completions by typing in a TypeScript file.

If restarting doesn’t help, check the TypeScript version being used. Cursor displays the active TypeScript version in the status bar. Click on it to switch between versions or select “Use Workspace Version” if your project has a local TypeScript installation.

Fix 2: Verify Cursor Settings for TypeScript

Cursor provides specific settings that control AI autocompletion behavior. Check these settings to ensure completions are enabled.

Open Settings with Cmd+, (macOS) or Ctrl+, (Windows/Linux), then search for “Completions”. Verify these settings are configured correctly:

For TypeScript-specific behavior, search for “typescript” in settings and check:

Save changes and restart Cursor to ensure all settings take effect.

Fix 3: Clear Cursor Cache and Reindex Project

Corrupted cache files can prevent completions from appearing correctly. Clearing the cache forces Cursor to rebuild its understanding of your project.

Close Cursor completely, then navigate to the cache directory:

Delete the contents of the Cache folder. Also clear the workspace state:

Restart Cursor and open your TypeScript project. The reindexing process may take a few minutes for larger projects, but completions should resume once complete.

Fix 4: Check for Extension Conflicts

Third-party extensions can interfere with Cursor’s completion system. Identifying conflicting extensions helps isolate the issue.

Launch Cursor in safe mode by holding Shift while clicking the Cursor icon. This disables all user-installed extensions temporarily. Test whether autocompletion works in safe mode.

If completions work in safe mode, systematically re-enable extensions to find the culprit. Enable half your extensions first, test completions, then narrow down by enabling smaller groups.

Common extension types that cause conflicts include:

Fix 5: Update Cursor and TypeScript

Using outdated versions can cause compatibility issues with newer TypeScript syntax or language server features.

Check for Cursor updates by clicking the gear icon in the bottom-left corner and selecting “Check for Updates”. Install any available updates.

Also verify your project’s TypeScript version matches what Cursor is using. In your project directory, check the TypeScript version:

npx tsc --version

Compare this with the TypeScript version shown in Cursor’s status bar. If there’s a mismatch, click the TypeScript version in the status bar and select “Use Workspace Version” to use your project’s TypeScript.

For projects using TypeScript 5.x features, ensure Cursor is running a compatible TypeScript version. Update your project’s TypeScript if necessary:

npm install typescript@latest --save-dev

Fix 6: Check tsconfig.json Configuration

Your TypeScript configuration affects what completions Cursor can provide. Incorrect settings may limit autocomplete suggestions.

Open your project’s tsconfig.json and verify these settings:

{
  "compilerOptions": {
    "moduleResolution": "bundler",
    "target": "ES2020",
    "module": "ESNext",
    "strict": true,
    "jsx": "react-jsx",
    "skipLibCheck": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "forceConsistentCasingInFileNames": true
  },
  "include": ["src/**/*"],
  "exclude": ["node_modules"]
}

Ensure the "include" section covers all TypeScript files where you want completions. If files are in directories not covered by “include”, Cursor won’t provide completions for them.

Fix 7: Verify Network and AI Service Connection

Cursor’s AI completions require an active connection to AI services. Network issues can prevent completions from loading.

Check your internet connection and ensure Cursor has network access. Corporate networks may require firewall configuration.

Open Cursor’s settings and verify the AI service endpoint is reachable. Look for “AI Endpoint” or similar settings in the advanced configuration section.

If you’re using a VPN or proxy, try disconnecting temporarily to see if completions resume. Some network configurations interfere with Cursor’s AI service communication.

Fix 8: Reset Cursor User Data

If all other fixes fail, resetting Cursor to default settings removes corrupted configurations that may be causing the issue.

First, backup your settings and keybindings if desired. Then, delete the User data folder:

Keep backups of any custom extensions or settings you want to preserve. After deletion, restart Cursor and configure settings from scratch. This often resolves persistent autocompletion issues.

Diagnostic Tips

Check the Output panel in Cursor by selecting “View > Output” and choosing “TypeScript” from the dropdown. Error messages here often indicate specific problems with the language server.

Monitor the status bar at the bottom of the Cursor window. Watch for indicators showing TypeScript server status and any error icons. A red or yellow indicator suggests a problem with the TypeScript integration.

Test completions in multiple TypeScript files. If completions work in some files but not others, the issue relates to specific files or their configurations rather than a general Cursor problem.

Try creating a new TypeScript file in your project. If completions work in new files but not existing ones, the problem may relate to specific file content or syntax errors preventing proper parsing.

Frequently Asked Questions

Who is this article written for?

This article is written for developers, technical professionals, and power users who want practical guidance. Whether you are evaluating options or implementing a solution, the information here focuses on real-world applicability rather than theoretical overviews.

How current is the information in this article?

We update articles regularly to reflect the latest changes. However, tools and platforms evolve quickly. Always verify specific feature availability and pricing directly on the official website before making purchasing decisions.

Does Cursor offer a free tier?

Most major tools offer some form of free tier or trial period. Check Cursor’s current pricing page for the latest free tier details, as these change frequently. Free tiers typically have usage limits that work for evaluation but may not be sufficient for daily professional use.

How do I get started quickly?

Pick one tool from the options discussed and sign up for a free trial. Spend 30 minutes on a real task from your daily work rather than running through tutorials. Real usage reveals fit faster than feature comparisons.

What is the learning curve like?

Most tools discussed here can be used productively within a few hours. Mastering advanced features takes 1-2 weeks of regular use. Focus on the 20% of features that cover 80% of your needs first, then explore advanced capabilities as specific needs arise.

Performance Benchmarks: Cursor vs Alternatives for TypeScript

Tool TypeScript Support Completion Speed Context Window Troubleshooting
Cursor Excellent <100ms 4K+ tokens Many configuration options
GitHub Copilot Good 50-150ms 2K-8K Limited docs for TS-specific issues
JetBrains AI Excellent 100-200ms 8K+ tokens IDE-integrated debugging
VS Code Pylance (TS) Good 50-100ms 2K tokens Limited AI suggestions

Detailed Troubleshooting: Which Fix Applies to Your Situation

Scenario 1: Completions stopped working after updating TypeScript

TypeScript version mismatches often cause this. Check your installed version against Cursor’s bundled version:

# Check project TypeScript
cd your-project && npx tsc --version

# Check Cursor's status bar for version info
# If mismatch: update project to match
npm install typescript@latest --save-dev
npm install --save-dev typescript@5.3.3  # Match Cursor's version

Then restart the TypeScript server via Command Palette.

Scenario 2: Monorepo completions fail in specific packages

Monorepos require explicit workspace configuration. Each package may need its own tsconfig.json:

{
  "compilerOptions": {
    "composite": true,
    "baseUrl": ".",
    "paths": {
      "@monorepo/*": ["packages/*/src"]
    }
  },
  "references": [
    { "path": "packages/core" },
    { "path": "packages/utils" }
  ]
}

Also create .cursorignore to prevent indexing noise:

node_modules/
dist/
build/
.next/
coverage/
*.lock

Scenario 3: Completions work in JS files but not TypeScript

This indicates the TypeScript language server isn’t initialized for your file type. Check tsconfig.json includes the right files:

{
  "include": [
    "src/**/*",
    "lib/**/*",
    "**/*.ts",
    "**/*.tsx"
  ],
  "exclude": [
    "node_modules",
    "dist"
  ]
}

If certain directories aren’t in the include list, Cursor won’t provide completions there.

Scenario 4: Complex types not completing

Cursor struggles with very deep type inference. Simplify by:

// Instead of chained generics:
// type Complicated = Awaited<Readonly<Partial<MyType>>>[keyof Something]

// Break into simpler steps:
type BaseType = MyType;
type PartialBase = Partial<BaseType>;
type ReadonlyPartial = Readonly<PartialBase>;
type Final = Awaited<ReadonlyPartial>;

This makes inference easier for the AI to follow.

Preventing Future Autocompletion Issues

Best Practice 1: Keep TypeScript Updated

Set up regular updates in your CI pipeline:

# Check for outdated TypeScript weekly
npm outdated typescript

# Update in a separate branch
npm install typescript@latest --save-dev
npm test
# Merge if tests pass

Best Practice 2: Version Lock Critical Dependencies

In package.json:

{
  "devDependencies": {
    "typescript": "5.3.3",
    "@types/node": "20.8.0"
  }
}

Version locking prevents surprise breaking changes when team members install dependencies.

Best Practice 3: Document Your TypeScript Configuration

Add a README explaining your tsconfig.json:

# TypeScript Configuration

- **target**: ES2020 (Node 16+)
- **module**: ESNext (for bundlers)
- **moduleResolution**: bundler
- **strict**: true (enables strict null checks, etc)
- **skipLibCheck**: true (faster compilation)

See [TypeScript Handbook](https://www.typescriptlang.org/docs/) for options.

Comparing TypeScript Completion Across Tools

Testing the same TypeScript scenario with different tools reveals their strengths:

Test Case: Generic function with conditional types

type IsString<T> = T extends string ? true : false;

function processValue<T>(value: T): IsString<T> extends true ? string : number {
  // What does each tool suggest here?
  return value as any;
}

Lesson: For complex TypeScript scenarios, Cursor and JetBrains AI lead. If you hit a ceiling, consider JetBrains as an alternative.

TypeScript-Specific Configuration for Cursor

Create a .cursor directory with workspace settings:

# .cursor/settings.yml
typescript:
  enableStrictMode: true
  checkJs: false
  skipLibCheck: false

completions:
  triggerOn:
    - "property_access"  # foo.
    - "word_boundaries"  # after space
  ignorePatterns:
    - "**/*.d.ts"  # Exclude type definitions from triggering
    - "node_modules"

# Context for AI
context:
  includes:
    - "src/**/*.ts"
    - "src/**/*.tsx"
  excludes:
    - "**/node_modules/**"
    - "**/dist/**"

When to Switch Tools

If you’ve tried all fixes and completions still fail, consider switching tools:

Switch to GitHub Copilot if:

Switch to JetBrains AI Assistant if:

Switch to Claude Code CLI if:

Built by theluckystrike — More at zovo.one