Don't trust your eyes - ANSI escape injection in the skills CLI by vercel-labs
In a previous post we looked at the skills CLI by vercel-labs/skills and ways for a malicious skill to overwrite an existing trusted skill by using homoglyph names or abusing weird CLI behaviors. This post will delve into an OSC-8 escape injection we found in the skills add command, which lets a skill author write arbitrary text to the console and clickable links as if it's part of the CLI's output.