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Lean Ctx Review

Lean Ctx Review is an agent skill (a SKILL.md file) from yvgude/lean-ctx. Review how the lean-ctx ctx* MCP tools performed in the current session and file upstream issues for confirmed problems. It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 3,901 GitHub stars across a repository of 2 listed skills.

github.com/yvgude/lean-ctx/skills/lean-ctx-review (opens in a new tab)

Data as of from the GitHub API; description from the skill's SKILL.md. Report an error

View on GitHub (opens in a new tab)

Add this skill

Claude

Claude Code loads skills from ~/.claude/skills/ (all projects) or .claude/skills/ (one project):

git clone --depth 1 https://github.com/yvgude/lean-ctx.git
cp -r lean-ctx/skills/lean-ctx-review ~/.claude/skills/lean-ctx-review   # personal, or .claude/skills in a project

In the Claude apps, zip the lean-ctx-review folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

ChatGPT / Codex

Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:

git clone --depth 1 https://github.com/yvgude/lean-ctx.git
cp -r lean-ctx/skills/lean-ctx-review .agents/skills/lean-ctx-review   # repo; ~/.agents/skills for all projects

Standalone skills also load in the ChatGPT desktop app.

Cursor

Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:

git clone --depth 1 https://github.com/yvgude/lean-ctx.git
cp -r lean-ctx/skills/lean-ctx-review .cursor/skills/lean-ctx-review   # project; ~/.cursor/skills for all projects

Source (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)

What this skill does

Review how the lean-ctx ctx* MCP tools performed in the current session and file upstream issues for confirmed problems. Use when the user asks to review/audit lean-ctx tool performance, says "lean-ctx review", asks why ctx tools failed or fell back to native tools, or wants to report a lean-ctx bug. Reads a Claude Code session transcript, so it applies to agents that write ~/.claude/projects//.jsonl. Other harnesses need their own extractor; the triage rules below are harness-independent.

When it triggers

  • Use when the user asks to review/audit lean-ctx tool performance, says "lean-ctx review", asks why ctx tools failed or fell back to native tools, or wants to report a lean-ctx bug.
  • "lean-ctx review"

More skills in yvgude/lean-ctx

2 skills are listed from this repository.

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FAQ

Lean Ctx Review FAQ

Still curious? Email info@appsgit.com.

How do I install the Lean Ctx Review skill?

Copy the lean-ctx-review folder (the one containing SKILL.md) into ~/.claude/skills/ for Claude Code, .agents/skills/ for Codex or .cursor/skills/ for Cursor. The agent picks it up automatically when a task matches its description.

Is the Lean Ctx Review skill free?

Yes. The repository is open source under the Apache-2.0 license.

Is Lean Ctx Review maintained?

The repository's most recent commit was on Oct 26, 2026. Its latest release is v3.11.4. appsgit only lists skills from repositories with a commit in the last six months.