nestjs-doctor is free, open-source static analysis for NestJS that catches AI mistakes deterministically: a 0-100 score, the module graph without booting the app, and a gate on every pull request. No LLM at scan time. MIT.

Hackathon CLI orchestration layer for treehouse, lavish, no-mistakes, and an autoresearch-style auto loop

Highlight mistakes and their absence in a piece of text.

Validate-then-repair extension for pi — fixes common LLM tool-call mistakes (null fields, stringified arrays, wrong field names, anchor bleed) before tools execute

Capture and retrieve coding pitfalls so AI doesn't repeat mistakes

ESLint rules for awaitly workflow patterns - catch common mistakes like immediate execution and unstable cache keys

ESLint rules that catch the most common test-suite mistakes: focused tests, direct DB access from tests, and orphaned test files.

AI-powered Git coach CLI that prevents mistakes before they happen

Checks and fixes common mistakes in SIP messages.

Shared JavaScript installer logic for no-mistakes CLI packages

A linter for scientific papers written in LaTeX: catches mistakes before you submit to a conference or journal.

AgentXP Reflection Skill — teach your AI Agent to learn from mistakes

- Provide a style guide for your JavaScript - Warns on common mistakes in JavaScript - Works with EcmaScript 2015+

An OpenCode plugin that teaches A1/A2 and A2/B1 learners how to correct common Dutch mistakes.

Simple abstraction of AES to ensure no silly mistakes

Fix URLs from user input. People make mistakes!

ESLint plugin to prevent mistakes by not awaiting async methods.

Trace Next.js cache tag relationships and catch static cache API mistakes before they reach production.

Finds the Gov-Client and Gov-Vendor header mistakes HMRC rejects, in your editor, offline, before you send the request.

Catches the cmssy wiring mistakes that a build cannot: server config dragged into a client bundle, a provider the editor route never gets.