googlecalendar
mcpsmitheryGoogle Calendar MCP server for creating and managing calendar events.
By Smithery | 62 findings | Scanned 6/3/2026 | tooltrust-scanner/v0.3.13
Risk Summary
Needs ApprovalDep 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 (62)
tool declares exec permission
GOOGLECALENDAR_CALENDARS_UPDATEGOOGLECALENDAR_CREATE_EVENTGOOGLECALENDAR_PATCH_CALENDARGOOGLECALENDAR_PATCH_EVENTGOOGLECALENDAR_UPDATE_EVENTtool declares network permission
GOOGLECALENDAR_FREE_BUSY_QUERYFix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.
input parameter "syncToken" appears to accept a secret or credential
GOOGLECALENDAR_EVENTS_LISTGOOGLECALENDAR_LIST_CALENDARSGOOGLECALENDAR_SETTINGS_LISTinput parameter "token" appears to accept a secret or credential
GOOGLECALENDAR_EVENTS_WATCHGOOGLECALENDAR_SETTINGS_WATCHFix: Avoid accepting raw credentials as input parameters. Use secret managers (e.g. 1Password CLI, AWS Secrets Manager) and ensure credentials are never logged or stored in agent traces.
tool declares fs permission
GOOGLECALENDAR_CALENDAR_LIST_UPDATEGOOGLECALENDAR_CALENDARS_DELETEGOOGLECALENDAR_CALENDARS_UPDATEGOOGLECALENDAR_CREATE_EVENTGOOGLECALENDAR_DELETE_EVENTGOOGLECALENDAR_REMOVE_ATTENDEEGOOGLECALENDAR_UPDATE_ACL_RULEGOOGLECALENDAR_UPDATE_EVENTtool declares db permission
GOOGLECALENDAR_FIND_EVENTFix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.
tool performs network or execution operations but declares no rate-limit, timeout, or retry configuration
GOOGLECALENDAR_CALENDARS_UPDATEGOOGLECALENDAR_CREATE_EVENTGOOGLECALENDAR_EVENTS_WATCHGOOGLECALENDAR_FREE_BUSY_QUERYGOOGLECALENDAR_PATCH_CALENDARGOOGLECALENDAR_PATCH_EVENTGOOGLECALENDAR_UPDATE_EVENTFix: 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.
input schema exposes 23 properties (threshold: 10)
GOOGLECALENDAR_CREATE_EVENTGOOGLECALENDAR_UPDATE_EVENTinput schema exposes 19 properties (threshold: 10)
GOOGLECALENDAR_EVENTS_LISTtool declares http permission
GOOGLECALENDAR_EVENTS_WATCHinput schema exposes 11 properties (threshold: 10)
GOOGLECALENDAR_FIND_EVENTinput schema exposes 14 properties (threshold: 10)
GOOGLECALENDAR_PATCH_EVENTFix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.
Tool did not expose metadata.dependencies or repo_url, so supply-chain coverage is limited.
GOOGLECALENDAR_ACL_PATCHGOOGLECALENDAR_CALENDAR_LIST_INSERTGOOGLECALENDAR_CALENDAR_LIST_UPDATEGOOGLECALENDAR_CALENDARS_DELETEGOOGLECALENDAR_CALENDARS_UPDATEGOOGLECALENDAR_CLEAR_CALENDARGOOGLECALENDAR_CREATE_EVENTGOOGLECALENDAR_DELETE_EVENTGOOGLECALENDAR_DUPLICATE_CALENDARGOOGLECALENDAR_EVENTS_INSTANCESGOOGLECALENDAR_EVENTS_LISTGOOGLECALENDAR_EVENTS_MOVEGOOGLECALENDAR_EVENTS_WATCHGOOGLECALENDAR_FIND_EVENTGOOGLECALENDAR_FIND_FREE_SLOTSGOOGLECALENDAR_FREE_BUSY_QUERYGOOGLECALENDAR_GET_CALENDARGOOGLECALENDAR_GET_CURRENT_DATE_TIMEGOOGLECALENDAR_LIST_ACL_RULESGOOGLECALENDAR_LIST_CALENDARSGOOGLECALENDAR_PATCH_CALENDARGOOGLECALENDAR_PATCH_EVENTGOOGLECALENDAR_QUICK_ADDGOOGLECALENDAR_REMOVE_ATTENDEEGOOGLECALENDAR_SETTINGS_LISTGOOGLECALENDAR_SETTINGS_WATCHGOOGLECALENDAR_SYNC_EVENTSGOOGLECALENDAR_UPDATE_ACL_RULEGOOGLECALENDAR_UPDATE_EVENTFix: Review and remediate the identified issue.
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