ToolTrust
A4/100
sbroenne

mcp-server-excel

mcp2.0.7

@sbroenne

Automate real Microsoft Excel with AI via MCP Server or CLI — Power Query, DAX, VBA, PivotTables, charts, and 326 operations.

By sbroenne | 33 findings | Scanned 9/11/2026 | tooltrust-scanner/v0.3.19 | 680

6 Low27 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 (33)

  • LowAS-002

    ⚠️Excessive Permissions ×2

    input schema exposes 12 properties (threshold: 10)

    MicrosoftExcel_AggregateWorksheet

    input schema exposes 14 properties (threshold: 10)

    MicrosoftExcel_ReadWorksheet

    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

    MicrosoftExcel_AggregateWorksheetMicrosoftExcel_CreateOrEditWorkbookMicrosoftExcel_ScanForDataIssuesMicrosoftExcel_SearchWorkbooks

    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-014

    ℹ️Dependency Inventory Unavailable ×18

    Tool did not expose metadata.dependencies or repo_url, so supply-chain coverage is limited.

    Arcade_ListAppsMicrosoftExcel_AddWorksheetMicrosoftExcel_AggregateWorksheetMicrosoftExcel_CreateOrEditWorkbookMicrosoftExcel_CreateWorkbookMicrosoftExcel_DeleteWorksheetMicrosoftExcel_GetWorkbookMetadataMicrosoftExcel_GetWorksheetDataMicrosoftExcel_ListWorkbookCommentsMicrosoftExcel_ReadWorksheetMicrosoftExcel_RenameWorksheetMicrosoftExcel_ReplyToWorkbookCommentMicrosoftExcel_ScanForDataIssuesMicrosoftExcel_SearchWorkbooksMicrosoftExcel_UpdateCellMicrosoftExcel_UpdateRangeMicrosoftExcel_UploadWorkbookMicrosoftExcel_WhoAmI

    Fix: Review and remediate the identified issue.

  • InfoAS-002

    ⚠️Excessive Permissions ×9

    declared capabilities: HTTP requests

    MicrosoftExcel_AggregateWorksheetMicrosoftExcel_ScanForDataIssues

    declared capabilities: filesystem access, HTTP requests

    MicrosoftExcel_CreateOrEditWorkbook

    declared capabilities: filesystem access

    MicrosoftExcel_CreateWorkbookMicrosoftExcel_DeleteWorksheetMicrosoftExcel_UpdateCellMicrosoftExcel_UpdateRangeMicrosoftExcel_UploadWorkbook

    declared capabilities: network access, filesystem access, database access

    MicrosoftExcel_SearchWorkbooks

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

Scan this tool yourself

Reproduce this audit locally, integrate into CI, or let your agent audit its own tools.

Install once, then scan any MCP server:

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

Adjust the package name if your npm registry name differs from the tool ID. View source

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