ToolTrust
B15/100
yctimlin

mcp-excalidraw

mcp1.1.0

@yctimlin

MCP server and Claude Code skill for Excalidraw — programmatic canvas toolkit to create, edit, and export diagrams via AI agents with real-time canvas sync.

By yctimlin | 46 findings | Scanned 7/31/2026 | tooltrust-scanner/v0.3.19 | 2.2k

1 High6 Low39 Info

Risk Summary

Safe With Normal Controls

Dep Visibility is the main signal, but overall risk remains within an acceptable range.

Potential impact: This finding indicates the tool should be reviewed before it is trusted.

Recommended action: No high-risk findings were detected in this scan, but you should still apply least-privilege defaults and rescan after changes.

Suggested policy: keep this tool behind manual approval, do not allow unattended runs, and re-scan after narrowing risky permissions.

Security Findings (46)

  • HighAS-012

    🔄Tool Drift

    Tool set changed silently at v1.1.0: 26 tool(s) added, 2 tool(s) removed without a version bump.

    + 26 added

    align_elementsbatch_create_elementsclear_canvascreate_elementcreate_from_mermaiddelete_elementdescribe_scenedistribute_elementsduplicate_elementsexport_sceneexport_to_excalidraw_urlexport_to_imageget_canvas_screenshotget_elementget_resourcegroup_elementsimport_scenelock_elementsquery_elementsread_diagram_guiderestore_snapshotset_viewportsnapshot_sceneungroup_elementsunlock_elementsupdate_element

    − 2 removed

    create_viewread_me

    Fix: The set of tools exposed by this server changed between scans of the same version — a sign the package was silently updated without a version bump. Audit the changelog and all tool definitions before trusting this server. Pin to a specific commit hash rather than a floating version tag.

  • LowAS-002

    ⚠️Excessive Permissions ×2

    input schema exposes 19 properties (threshold: 10)

    create_element

    input schema exposes 15 properties (threshold: 10)

    update_element

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

  • LowAS-011

    ℹ️Missing Rate-Limit / Timeout ×4

    tool performs network or execution operations but declares no rate-limit, timeout, or retry configuration

    query_elementssnapshot_scenerestore_snapshotexport_to_excalidraw_url

    Fix: Declare explicit rate-limit, timeout, and retry configuration for all network and execution tools. Implement exponential back-off and surface resource state to the calling agent.

  • InfoAS-002

    ⚠️Excessive Permissions ×13

    declared capabilities: filesystem access

    create_elementupdate_elementdelete_elementdistribute_elementscreate_from_mermaidbatch_create_elementsexport_sceneimport_sceneexport_to_image

    declared capabilities: network access, database access

    query_elements

    declared capabilities: HTTP requests

    snapshot_scenerestore_snapshot

    declared capabilities: network access

    export_to_excalidraw_url

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

  • InfoAS-014

    ℹ️Dependency Inventory Unavailable ×26

    No metadata.dependencies or repo_url were exposed by this MCP server, and no local project manifest could be inferred from the launch command.

    create_elementupdate_elementdelete_elementquery_elementsget_resourcegroup_elementsungroup_elementsalign_elementsdistribute_elementslock_elementsunlock_elementscreate_from_mermaidbatch_create_elementsget_elementclear_canvasexport_sceneimport_sceneexport_to_imageduplicate_elementssnapshot_scenerestore_snapshotdescribe_sceneget_canvas_screenshotread_diagram_guideexport_to_excalidraw_urlset_viewport

    Fix: Review and remediate the identified issue.

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$ curl -sfL https://raw.githubusercontent.com/AgentSafe-AI/tooltrust-scanner/main/install.sh | bash
$ tooltrust-scanner scan --server "npx -y mcp-excalidraw"

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