What is sleight?
sleight is a Claude Code mod by Land-o-Clusters that unofficial: lets Claude drive macOS apps in the background through the computer-use engine bundled with the ChatGPT desktop app, without taking over your cursor. It is listed under Interface and has 3 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | Land-o-Clusters |
| Repository | Land-o-Clusters/sleight |
| Popularity | 3 GitHub stars |
| Category | Interface |
| Security | High risk (48/100) |
| Rank | #824 of 5,272 Claude Code mods; #306 in Interface |
| License | MIT |
| Last commit | 2026-10-11 |
| Stars this week | +1 |
| Hooks | 8 events |
| Sees | every prompt, mcp__plugin_sleight_computer__js calls, mcp__plugin_sleight_computer__replay calls, mcp__plugin_sleight_computer__turn_ended calls |
| Draws on | Pane |
Is sleight safe to install?
sleight scores 48/100 on the MCPMods security check: High risk. Things to review: sends data over the network; starts processes outside the sandbox; writes files or config; watches every prompt or event. It passed 3 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| Sends data over the network | Review |
| Starts processes outside the sandbox | Review |
| Writes files or config | Review |
| Doesn't read environment variables | Pass |
| Watches every prompt or event | Review |
| Drives Claude (model calls, prompts) | Note |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.clock.after | |
$.command.register | |
$.fs.exists | reads files |
$.fs.read | reads files |
$.fs.write | writes files |
$.mcp.call | calls MCP servers |
$.mcp.connect | |
$.process.run | runs processes |
$.prompt.submit | drives Claude |
$.session.id | |
$.state.get | |
$.state.set | |
$.ui.log | draws interface |
$.ui.open | draws interface |
$.ui.panes | draws interface |
$.ui.resolve | draws interface |
$.ui.status | draws interface |
$.ui.toast | draws interface |
How do I install sleight?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/Land-o-Clusters/sleight claude plugin validate ./sleight/plugins/sleight
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add Land-o-Clusters/sleight && claude plugin install sleight@sleight
Or ask Claude to set it up
Paste this into Claude Code and it installs sleight for you:
Install the "sleight" Claude Code mod from https://github.com/Land-o-Clusters/sleight/tree/main/plugins/sleight. Run claude plugin validate on it first and show me what it can access before you enable it.