cursor-multi-repo

Work with multiple repositories in Cursor: multi-root workspaces, monorepo patterns, selective indexing, and cross-project context. Triggers on "cursor multi repo", "cursor multiple projects", "cursor monorepo", "cursor workspace", "multi-root workspace".

Quality

77%

Does it follow best practices?

Impact

Pending

No eval scenarios have been run

Securityby

Passed

No known issues

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Cursor Multi-Repo

Work with multiple repositories and monorepo structures in Cursor. Covers multi-root workspaces, selective indexing, cross-project context, and rule inheritance patterns.

Multi-Root Workspaces

Open multiple project roots in a single Cursor window:

Creating a Workspace

Open first project: File > Open Folder > select project A
Add second project: File > Add Folder to Workspace... > select project B
Save workspace: File > Save Workspace As... > mywork.code-workspace

Workspace File Structure

// mywork.code-workspace
{
  "folders": [
    { "path": "/home/dev/api-service" },
    { "path": "/home/dev/web-frontend" },
    { "path": "/home/dev/shared-lib" }
  ],
  "settings": {
    "editor.tabSize": 2,
    "files.exclude": {
      "**/node_modules": true,
      "**/dist": true
    }
  }
}

Open workspace: cursor mywork.code-workspace or double-click the file.

How Indexing Works with Multi-Root

Each folder root is indexed independently
@Codebase searches across all open roots
@Files paths include the root name: @api-service/src/routes/users.ts
Closing a folder removes it from the index

Monorepo Patterns

Opening Full Monorepo

cursor /path/to/monorepo

Pros: @Codebase searches everything, cross-package references work naturally Cons: Slow indexing on large monorepos, lots of irrelevant search results

Focused Opening (Recommended)

# Open just the package you're working on
cursor /path/to/monorepo/packages/api

Pros: Fast indexing, focused search results Cons: No automatic cross-package context

Hybrid: Focused + Selective .cursorignore

# Open the monorepo root but exclude what you don't need
cursor /path/to/monorepo

# .cursorignore at monorepo root
# Only index packages you're actively working on

# Exclude everything in packages/
packages/*/

# Except the ones you want indexed:
!packages/api/
!packages/shared/

# Always exclude
node_modules/
dist/
build/
.turbo/

This indexes only packages/api/ and packages/shared/, keeping search focused.

Cross-Project Context

Referencing Files Across Roots

In a multi-root workspace, use the root folder name as prefix:

@api-service/src/types/user.ts @web-frontend/src/hooks/useAuth.ts

The User type in the API doesn't match the frontend hook.
Show me the differences and suggest how to share the type.

Sharing Types Between Projects

Use project rules to guide cross-project imports:

# .cursor/rules/monorepo-imports.mdc (in monorepo root)
---
description: "Monorepo import conventions"
globs: ""
alwaysApply: true
---
# Import Rules
- Shared types: import from @myorg/shared (never relative paths across packages)
- Shared UI: import from @myorg/ui
- Never import directly from another app package (apps/api → apps/web is forbidden)
- Each package declares its own dependencies in package.json

Rules Inheritance

Monorepo: Root + Package Rules

monorepo/
├── .cursor/rules/
│   ├── global.mdc              # alwaysApply: true (applies everywhere)
│   └── security.mdc            # alwaysApply: true
├── packages/
│   ├── api/
│   │   └── .cursor/rules/
│   │       └── api-patterns.mdc  # Scoped to api/ files
│   ├── web/
│   │   └── .cursor/rules/
│   │       └── react-patterns.mdc  # Scoped to web/ files
│   └── shared/

Behavior:

Root rules apply to all files in the monorepo
Package-level rules apply only when editing files in that package
If both match, both are included in context

Multi-Root: Independent Rules

In a multi-root workspace, each root has its own .cursor/rules/:

# Workspace contains:
api-service/
  .cursor/rules/express-patterns.mdc    # Only applies to api-service files

web-frontend/
  .cursor/rules/react-patterns.mdc      # Only applies to web-frontend files

Rules do NOT cross workspace roots. Each project's rules are independent.

Selective Indexing Strategies

Strategy 1: Single Package Focus

cursor packages/api/
# Only indexes packages/api/
# Fast, focused, no cross-package noise

Strategy 2: Related Packages

# .cursorignore at monorepo root
packages/*/
!packages/api/
!packages/shared/
!packages/config/

Strategy 3: Full Monorepo with Heavy Exclusions

# .cursorignore
node_modules/
dist/
build/
.turbo/
.next/
coverage/
*.lock
*.min.js
**/*.test.ts       # Optional: exclude tests from indexing
**/fixtures/       # Test fixtures
**/migrations/     # Database migrations (reference via @Files)

Performance Optimization

Memory Management

Each open workspace root consumes memory for indexing. Minimize open roots:

# Instead of opening 5 repos:
cursor repo1/ repo2/ repo3/ repo4/ repo5/   # Heavy

# Open only what you need:
cursor repo1/                                # Light
# Add repo2/ only when needed via File > Add Folder

Large Monorepo Tips

1. Use .cursorignore aggressively
2. Open specific packages, not the root
3. Close workspace folders you're not actively editing
4. Start new chats when switching between packages
5. Use @Files for cross-package references instead of @Codebase

Enterprise Considerations

Repository access: Multi-root workspaces respect filesystem permissions. Cursor cannot index repos the user cannot read.
Indexing scope: Only open workspace folders are indexed. Opening a shared drive or network mount may be slow.
Rule governance: In monorepos, root-level rules serve as team-wide governance. Package-level rules add specificity.
CI alignment: .cursor/rules/ should be reviewed in PRs like any other configuration change.

Resources

Repository: jeremylongshore/claude-code-plugins-plus-skills
Commit: 3e83543

Last updated: 2 days ago
Created: 2 days ago

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