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Cursor and Anysphere
Cursor is an AI-assisted code editor from Anysphere, built on the VS Code codebase.
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Overview
Its documented features include next-edit suggestions, codebase indexing, Agent tools and ignore-file controls.
Deep Dive
Cursor describes itself as an AI code editor. Its security documentation states that it merges upstream VS Code code into its releases. Cursor’s docs describe codebase indexing, Tab suggestions and Agent capabilities such as searching files, editing and running terminal commands. The .cursorignore file excludes specified paths from indexing and AI context, but Cursor says terminal and MCP tools may not honor it; it should not be treated as a security boundary. Developers should review code changes before merging.
Real-World Implementation
Reviewing Cursor Tab suggestions as proposed code edits.
Using semantic codebase indexing to retrieve repository context.
Using Agent search, edits and terminal commands within a coding task.
Configuring .cursorignore to exclude selected paths from indexing and AI context.
The Future of Cursor and Anysphere
Feature names and data-handling behavior can change across Cursor releases and plans. Verify current docs, security settings and code changes for the exact version and workspace.
Putting it into practice
Why it matters
- Vendor strategy. Vendor roadmaps influence what features your team can build next.
- Cost and budget. Commercial terms and deployment options affect long-term cost and risk.
- Risk and safety. Company incentives shape product defaults, safety posture, and openness.
Watch out for
- Launch announcements may outpace stability in real production workflows.
- API pricing or policy shifts can break assumptions overnight.
- Single-vendor dependency increases lock-in and migration costs.
Next steps
- Evaluate providers using your own tasks and datasets.
- Review privacy, security, and legal terms before integration.
- Maintain a fallback plan across models or vendors.
- Monitor release notes so roadmap changes do not surprise teams.
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Frequently asked questions
What is Cursor and Anysphere?
Cursor is an AI-assisted code editor from Anysphere, built on the VS Code codebase. Its documented features include next-edit suggestions, codebase indexing, Agent tools and ignore-file controls.
What kind of product is Cursor?
Cursor is an AI-first code editor that helps programmers write, edit, and understand code using natural language.
Which upstream codebase does Cursor say it merges into every other mainline release?
Cursor’s security page says it merges upstream Microsoft VS Code source into every other mainline release; this describes its codebase relationship.
What is the name of the company that develops Cursor?
Anysphere, founded by MIT graduates in 2022, is the company that makes Cursor.
What does Cursor's 'Tab' feature primarily do?
The Tab feature uses a trained model to predict your next edit and can jump the cursor to the right location to apply it.
How does Cursor pull relevant parts of a large codebase into the model's context?
Cursor indexes the codebase into vector embeddings and retrieves the most relevant files, a form of retrieval-augmented generation.
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