ToolTrust
C42/100
datalayer

jupyter-mcp-server

mcp1.0.2

@datalayer

🪐 🔧 Model Context Protocol (MCP) Server for Jupyter.

By datalayer | 27 findings | Scanned 6/3/2026 | tooltrust-scanner/v0.3.13 | 1.1k

2 Critical3 High3 Medium5 Low14 Info

Risk Summary

Needs Approval

Dep Visibility plus Excessive Permissions raises enough risk that this tool should not be auto-trusted.

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

Recommended action: Keep this tool behind manual approval and avoid unattended runs until the risky capabilities are narrowed or removed.

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

Security Findings (27)

  • CriticalAS-006

    💻Arbitrary Code Execution ×2

    heuristic signal

    tool name or description implies arbitrary script/code execution (evaluate_script, execute javascript, etc.)

    insert_execute_code_cellexecute_code

    Fix: This tool can execute arbitrary code or shell commands on the host system. Remove it unless strictly required. If kept: (1) restrict access to trusted users/agents only, (2) require human approval before each invocation (Claude Desktop: set approval_required: true; other clients: enable equivalent confirmation), (3) use the most restrictive sandbox or read-only mode available, and (4) never expose this tool to untrusted input sources.

  • HighAS-002

    ⚠️Excessive Permissions ×3

    tool declares exec permission

    execute_cellinsert_execute_code_cellexecute_code

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

  • MediumAS-002

    ⚠️Excessive Permissions ×3

    tool declares fs permission

    list_filesdelete_celloverwrite_cell_source

    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-002

    ⚠️Excessive Permissions

    restart_notebook:tool declares http permission

    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

    restart_notebookexecute_cellinsert_execute_code_cellexecute_code

    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 ×14

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

    list_fileslist_kernelsuse_notebooklist_notebooksrestart_notebookunuse_notebookread_notebookread_cellinsert_celldelete_celloverwrite_cell_sourceexecute_cellinsert_execute_code_cellexecute_code

    Fix: Review and remediate the identified issue.

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 jupyter-mcp-server"

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

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