codex-first
Fail
Audited by Gen Agent Trust Hub on Sep 19, 2026
Risk Level: HIGHREMOTE_CODE_EXECUTIONDYNAMIC_EXECUTIONINDIRECT_PROMPT_INJECTIONCOMMAND_EXECUTIONOBFUSCATION
Full Analysis
- [REMOTE_CODE_EXECUTION]: The skill provides a command to fetch and execute an installation script from OpenAI's official domain (chatgpt.com) using a piped shell execution pattern.
- [DYNAMIC_EXECUTION]: The skill generates and executes content at runtime through several mechanisms:
- It creates a local shell wrapper script in the user's home directory (
~/.local/bin/codex) to enable the CLI if it is bundled with the ChatGPT application. - It utilizes temporary files (
mktemp) to assemble and pass multi-line shell prompts and repository work orders to the CLI. - [INDIRECT_PROMPT_INJECTION]: The skill processes potentially untrusted external data (base repository code, CI output, and git history) while maintaining high-privilege tool capabilities.
- Ingestion points: Accesses files and configuration (e.g.,
AGENTS.md) within the active project directory (SKILL.md). - Boundary markers: Uses a delegated sub-agent architecture for task execution, although it notes that saturated sessions may conflate data with instructions (SKILL.md).
- Capability inventory: Involves extensive shell command execution, repository modification, and unrestricted execution permissions via the
--yoloflag (SKILL.md). - Sanitization: Strictly mandates that the parent agent (Claude) must review all diffs, verify test results, and perform final verification before code is merged or landed (SKILL.md).
- [COMMAND_EXECUTION]: The skill instructs the agent to use the
--yoloflag with the Codex CLI, which bypasses typical approval prompts for command execution within the delegated environment. - [OBFUSCATION]: The skill includes logic to decode hex-encoded model identifiers from the system environment (e.g.,
echo <hex> | xxd -r -p) to determine model provenance and determine whether to delegate tasks. This is a functional requirement and not a deceptive technique.
Recommendations
- HIGH: Downloads and executes remote code from: https://chatgpt.com/codex/install.sh - DO NOT USE without thorough review
Audit Metadata