excalidraw-mcp-diagramming

Pass

Audited by Gen Agent Trust Hub on Sep 15, 2026

Risk Level: SAFEINDIRECT_PROMPT_INJECTION
Full Analysis
  • [INDIRECT_PROMPT_INJECTION]: The skill processes text from a live, external Excalidraw canvas, creating a surface for indirect prompt injection if an adversarial user modifies the whiteboard content.
  • Ingestion points: The describe_scene() tool in SKILL.md and references/iterative-refinement.md retrieves text data and labels directly from the active canvas into the agent context.
  • Boundary markers: Absent; there are no explicit delimiters or strict system guidelines instructing the model to ignore executable instructions within canvas text fields.
  • Capability inventory: The skill contains local file modification capabilities through the export_to_image and export_scene tools in SKILL.md.
  • Sanitization: Absent; text fields from the canvas elements are consumed as-is without escaping or filtering controls.
Audit Metadata
Risk Level
SAFE
Analyzed
Sep 15, 2026, 02:28 PM