mex
Pass
Audited by Gen Agent Trust Hub on Sep 20, 2026
Risk Level: SAFEEXTERNAL_DOWNLOADSCOMMAND_EXECUTIONINDIRECT_PROMPT_INJECTION
Full Analysis
- [EXTERNAL_DOWNLOADS]: The
install.shscript performs a global installation of themex-agentpackage vianpm install -g. It also usesnpxto register the skill from the author's GitHub repository (https://github.com/akillness/jeo-skills). - [COMMAND_EXECUTION]: The skill relies on several shell commands (
mex setup,mex graph,mex check) to function. It includes averify_mex_agentfunction that validates the version string of themexbinary to prevent name collisions with unrelated system tools such as TeX Live'smexutility. - [INDIRECT_PROMPT_INJECTION]: This skill is designed to ingest codebase information and present it to an AI agent for documentation purposes, which creates a potential surface for indirect injection if malicious instructions are embedded in the repository being analyzed.
- Ingestion points: Local repository source files and directory structures processed by
mex graph(SKILL.md, scripts/install.sh). - Boundary markers: The skill uses explicit "COPY ABOVE/BELOW THIS LINE" banners to separate tool-generated instructions from user data.
- Capability inventory: The agent is granted
Read,Write,Edit, andBashcapabilities which allow it to modify the local filesystem based on the processed data. - Sanitization: No explicit sanitization or filtering of the codebase content is described before it is interpolated into agent prompts.
- [SAFE_PRACTICE]: The documentation provides clear information regarding telemetry, noting that it is enabled by default and detailing how users can opt-out using the
DO_NOT_TRACKorMEX_TELEMETRYenvironment variables.
Audit Metadata