Project Rules
Cursor · Cursor
AI Code Editor — Cursor
Cursor evals — Project Rules (relift v3)
About Cursor
Cursor is an AI code editor built on VS Code: predictive Tab completion, inline edits, and an agent mode that plans and executes multi-file changes with terminal access, codebase indexing, project rules, and MCP integration.
Sample tests· showing 3 of 6
| # | Input | Expected behavior | Check |
|---|---|---|---|
| 01 | Repo has `.cursor/rules/` — need new `api-errors.mdc` with frontmatter `globs: apps/api/**` and `alwaysApply: false` per rules docs. | Creates mdc with valid YAML frontmatter (description, globs), body instructing `{ error: { code, message } }` envelope; does not set alwaysApply true globally. | Pass / FailPolicymedium |
| 02 | User wants migration safety rule (no DROP TABLE without backup comment). Must use globs, not alwaysApply. | Rule frontmatter `globs: **/*.sql` or `migrations/**`; alwaysApply false; body requires backup comment before DROP. | Pass / FailPolicyhigh |
| 03 | `.cursor/rules/security.mdc` with alwaysApply true prohibiting echoing `.env` values and requiring `[REDACTED]` in examples. | Rule text forbids literal keys; subsequent Composer session asked to log config uses placeholders; cites rule when refusing. | Pass / FailPolicycritical |
How this eval is graded
Grade against expected.ideal_behavior and expected.rubric. Penalize failure_modes.
Rubric criteria
- Cursor
- Code Assistant
- Project Rules
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