MCPInstall

code-quality

by tursodatabaseBackend & APIs

General Correctness rules, Rust patterns, comments, avoiding over-engineering. When writing code always take these into account

Installs
1.8K
Last 24h
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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/tursodatabase/turso --skill code-quality
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads code-quality automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Code Quality Guide

Core Principle

Production database. Correctness paramount. Crash > corrupt.

Correctness Rules

  1. No workarounds or quick hacks. Handle all errors, check invariants
  2. Assert often. Never silently fail or swallow edge cases
  3. Crash on invalid state if it risks data integrity. Don't continue in undefined state
  4. Consider edge cases. On long enough timeline, all possible bugs will happen

Rust Patterns

  • Make illegal states unrepresentable
  • Exhaustive pattern matching
  • Prefer enums over strings/sentinels
  • Minimize heap allocations
  • Write CPU-friendly code (microsecond = long time)

If-Statements

Wrong:

if condition {
    // happy path
} else {
    // "shouldn't happen" - silently ignored
}

Right:

// If only one branch should ever be hit:
assert!(condition, "invariant violated: ...");
// OR
return Err(LimboError::InternalError("unexpected state".into()));
// OR
unreachable!("impossible state: ...");

Use if-statements only when both branches are expected paths.

Comments

  • Don't add code comments, except for rust SAFETY comments.

Avoid Over-Engineering

  • Only changes directly requested or clearly necessary
  • Don't add features beyond what's asked
  • Don't add docstrings/comments to unchanged code
  • Don't add error handling for impossible scenarios
  • Don't create abstractions for one-time operations
  • Three similar lines > premature abstraction

Index Mutations

When code involves index inserts, deletes, or conflict resolution, double-check the ordering against SQLite. Wrong ordering causes index inconsistencies. and easy to miss.

Ensure understanding of IO model

  • Async IO model

Cleanup

  • Delete unused code completely
  • No backwards-compat hacks (renamed _vars, re-exports, // removed comments)

Single-use helpers

If a helper function has no meaning outside of a single use case, move it inside the function that uses it:

fn do_something() {
    
    something_specific();

    fn something_specific() {
    }
}

FAQ

What does the code-quality skill do?

General Correctness rules, Rust patterns, comments, avoiding over-engineering. When writing code always take these into account

How do I install code-quality?

Run npx skills add https://github.com/tursodatabase/turso --skill code-quality in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/code-quality/ (personal) or .claude/skills/code-quality/ (project).

Which AI agents can use code-quality?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is code-quality safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains code-quality?

It is published by tursodatabase in tursodatabase/turso. It has 1,787 recorded installs.

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