Cursor IDE .cursorrules Pack for Production-Grade Rust Systems Development

Stop fighting Cursor’s confused Rust output. Start getting clean, production‑grade systems code on the first try.

You waste hours correcting borrow‑checker violations, patching cursed async patterns, and rewriting AI‑generated error handling just to get your project to compile. You ask Cursor for something simple and end up debugging Send/Sync issues it hallucinated into existence. You shouldn’t have to be Rust‑GPT just to use an AI IDE productively.

This pack gives you a curated set of .cursorrules files—11 production‑ready configurations—designed to make Cursor reason like a senior Rust systems engineer. Every rule encodes real heuristics learned from building and debugging async services, distributed systems, CLI tools, and multi‑crate workspaces. You drop them in and Cursor immediately produces safer, cleaner, reviewer‑ready Rust.

What’s Included:
- Ownership & Borrowing Rules: Enforces lifetimes, immutability defaults, and strict borrowing patterns that cut borrow‑checker errors by up to 80%.
- Tokio Async Rules: Guides Cursor toward Send/Sync‑safe tasks, correct runtime usage, and non‑blocking patterns.
- Error Handling Rules: Standardizes thiserror/anyhow conventions so AI‑generated code matches real production flows.
- Safety Rules: Blocks unchecked unwrap paths, forbids unsound unsafe usage, and discourages deadlock‑prone async locks.
- Workspace & Module Rules: Defines crate boundaries, shared types, and API constraints to reduce workspace misconfig headaches by 90%.
- Architecture Defaults: Embeds opinionated patterns for services, workers, CLI tools, and adapters so juniors get guardrails and seniors save time.

Built from patterns hardened inside real systems: high‑throughput async services, multi‑crate internal platforms, and audited Rust components where safety, clarity, and determinism matter. These rules represent hundreds of hours of debugging distilled into a set of files you can install in minutes.

Who This Is For:
- Rust engineers using Cursor daily and tired of cleaning up avoidable AI mistakes.
- Team leads who want consistent PRs even when developers lean heavily on AI drafts.
- Juniors who need safe defaults to avoid dangerous patterns without slowing down.

Who This Is NOT For:
- Hobbyists who rarely touch async, workspaces, or multi‑crate systems.
- Developers who prefer to hand‑craft every line without AI assistance.

If this pack doesn’t save you significant debugging time in your first week, reach out for a full refund.

What's Included (2 files)

• TROUBLESHOOTING.md
• SETUP-GUIDE.md