opusplan
Warn
Audited by Gen Agent Trust Hub on Oct 22, 2026
Risk Level: MEDIUMCOMMAND_EXECUTIONINDIRECT_PROMPT_INJECTION
Full Analysis
- [COMMAND_EXECUTION]: The skill executes a local Python script (
run_opusplan.py) by interpolating user-supplied input directly into a shell command string (--task "TASK_HERE"). If the input is not properly escaped by the platform before substitution, a malicious user could potentially execute arbitrary shell commands on the host system. - [INDIRECT_PROMPT_INJECTION]: The skill implements a workflow where instructions for implementation are read from a generated file and external context sources, which could be influenced by malicious content.
- Ingestion points: Untrusted data enters the agent context via the
/tmp/opusplan_result.jsonfile (output of the planning script) and any files provided via the--contextargument. - Boundary markers: The instructions lack explicit boundary markers or warnings to disregard instructions embedded within the planning output or context files; instead, the agent is directed to "Follow the plan faithfully."
- Capability inventory: The skill has access to powerful tools, including
Bash,Write, andEdit, which are used to execute the steps defined in the plan. - Sanitization: There is no evidence of sanitization, filtering, or validation of the plan's content before the implementation phase begins.
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