new-skill-creator
Warn
Audited by Gen Agent Trust Hub on Jul 16, 2026
Risk Level: MEDIUMCOMMAND_EXECUTIONEXTERNAL_DOWNLOADSREMOTE_CODE_EXECUTIONDATA_EXFILTRATIONPROMPT_INJECTION
Full Analysis
- [COMMAND_EXECUTION]: The skill executes multiple shell commands to manage files and system state.
- Uses
ln -s(POSIX) andmklink(Windows) to create directory symbolic links directly inside agent configuration folders (~/.claude/skills,~/.codex/skills,~/.agents/skills). - Executes
gitcommands (add,commit,push) to publish local skill data to a remote repository. - Performs folder movement (
mv) and removal (rm,rmdir) during renaming operations. - [EXTERNAL_DOWNLOADS]: The skill uses
npx @younndai/yon-parser, which downloads an external package from the public npm registry at runtime. - [REMOTE_CODE_EXECUTION]: The use of
npxto download and run a package from an unverified source (@younndai) represents a remote code execution vector. - [DATA_EXFILTRATION]: While intended for publishing skills, the capability to perform
git pushon directories containing potential configuration data could be abused to exfiltrate information if the destination repository is compromised or redirected. - [PROMPT_INJECTION]: The skill creates an indirect prompt injection surface by generating new instructions (
SKILL.md,protocol.yon) based on unvalidated user input. These generated files are then automatically linked into the agent's execution environment, potentially allowing the creation of malicious skills through the scaffold tool. - [COMMAND_EXECUTION]: The skill provides a Python snippet using
shutil.rmtreeto remove directories on Windows, which involves executing arbitrary script logic to bypass shell restrictions.
Audit Metadata