reporails

30k Corpus — AI skill for Claude Code

AI community

28,721 GitHub repositories analyzed for AI instruction quality across Claude, Codex, Copilot, Cursor, and Gemini.

How to install 30k Corpus

This entry records only its repository, not the path inside it, so there is no exact command to give. Open reporails/30k-corpus and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

What 30k Corpus does

28,721 GitHub repositories analyzed for AI instruction quality across Claude, Codex, Copilot, Cursor, and Gemini. Full dataset behind "The State of AI Instruction Quality."

Alternatives in AI

Generative Media Skills — Multi-modal Generative Media Skills for AI Agents (Claude Code, Cursor, Gemini CLI) 3k ★
LongHorizon Harness — The long-horizon computer-use harness 1.3k ★
Skills Manager — A lightweight desktop app to manage, sync, and organize AI agent skills across 15+ coding tools — Cursor, Clau 813 ★

README

30K Corpus: AI Instruction Quality Dataset

Dataset for ["The State of AI Instruction Quality"](https://medium.com/@cleverhoods/the-state-of-ai-instruction-quality-30k-repo-analysis-ce49c7667a57) — a corpus analysis of 28,721 GitHub repositories containing instruction files for five coding agents. Provided via [Reporails CLI](https://github.com/reporails/cli).

What's in this dataset

File	Records	Description
`repos.jsonl`	28,721	Per-project: agents configured, stars, language, license, topics
`stats_public.json`	1	Aggregate statistics backing every table in the article
`validation_key.csv`	2,814	Sample classifications: atom text, tool labels, source location

Data dictionary

repos.jsonl

Each line is a JSON object with:

Field	Type	Description
`full_name`	string	`owner/project`
`canonical_agents`	string[]	Agents detected after deduplication: `claude`, `codex`, `copilot`, `cursor`, `gemini`
`stars`	int	GitHub star count at collection time
`primary_language`	string?	GitHub-detected primary language
`license`	string?	SPDX license identifier
`archived`	bool	Whether repo is archived
`topics`	string[]	GitHub topics