ToolTrust
B15/100
sheshbabu

zen

mcp1.5.0

@sheshbabu

Selfhosted notes app. Single golang binary, notes stored as markdown within SQLite, full-text search, very low resource usage

By sheshbabu | 27 findings | Scanned 6/22/2026 | tooltrust-scanner/v0.3.19 | 1.1k

1 High4 Low22 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 (27)

  • HighAS-012

    🔄Tool Drift

    Tool set changed silently at v1.5.0: 16 tool(s) added, 44 tool(s) removed without a version bump.

    + 16 added

    archive_transaction_categorycreate_orgcreate_transaction_categorydelete_transactionedit_transactionedit_transaction_categoryget_budget_statusget_monthly_summaryget_transactionsget_user_contextinvite_memberlist_transaction_categoriesreport_feedbackrespond_invitationsave_transactionset_budget

    − 44 removed

    add_status_page_monitorcreate_alertcreate_heartbeatcreate_monitorcreate_monitor_groupcreate_status_pagecreate_workspacedelete_alertdelete_heartbeatdelete_monitordelete_monitor_groupdelete_telegram_groupexecute_checkgenerate_api_keyget_check_historyget_current_userget_heartbeatget_incidentget_monitor_statusget_uptime_statslink_telegram_grouplist_alertslist_heartbeatslist_incidentslist_monitor_groupslist_monitorslist_status_pageslist_telegram_groupslist_workspacesloginpause_heartbeatpingrefresh_tokenregisterremove_status_page_monitorresolve_incidentresume_heartbeattest_alertupdate_alertupdate_incidentupdate_monitorupdate_monitor_groupupdate_status_pageupdate_workspace

    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-011

    ℹī¸Missing Rate-Limit / Timeout ×3

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

    create_orgcreate_transaction_categoryedit_transaction_category

    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.

  • LowAS-002

    ⚠ī¸Excessive Permissions

    report_feedback:input schema exposes 11 properties (threshold: 10)

    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

    ℹī¸Dependency Inventory Unavailable ×16

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

    get_user_contextcreate_orginvite_memberrespond_invitationsave_transactionget_transactionsedit_transactiondelete_transactioncreate_transaction_categoryedit_transaction_categoryarchive_transaction_categorylist_transaction_categoriesset_budgetget_budget_statusreport_feedbackget_monthly_summary

    Fix: Review and remediate the identified issue.

  • InfoAS-002

    ⚠ī¸Excessive Permissions ×6

    declared capabilities: network access, filesystem access

    create_org

    declared capabilities: filesystem access

    save_transactiondelete_transactionreport_feedback

    declared capabilities: code/command execution, filesystem access

    create_transaction_category

    declared capabilities: code/command execution

    edit_transaction_category

    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 zen"

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