# Lean Ctx Review (agent skill)

> 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 3,865 GitHub stars across a repository of 2 listed skills.

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.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/yvgude/lean-ctx |
| Skill path | skills/lean-ctx-review/SKILL.md |
| Skill name | lean-ctx-review |
| GitHub stars | 3,865 |
| Installs on skills.sh | not listed |
| License | Apache-2.0 |
| Skills in repo | 2 |
| Plugin marketplace | no |
| Official | no |
| Works with | Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode |
| Category | Security |
| Last commit | Oct 7, 2026 |

## 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"

## Add this skill

### Claude Code

```sh
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 skill folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

### ChatGPT / Codex

```sh
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
```

### Cursor

```sh
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
```

Sources (checked 2026-10-07): https://code.claude.com/docs/en/skills, https://support.claude.com/en/articles/12512180-using-skills-in-claude, https://learn.chatgpt.com/docs/build-skills, https://cursor.com/docs/context/skills

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Canonical page: https://appsgit.com/skills/yvgude-lean-ctx-review
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