Google (pegasusheavy) MCP Server
@pegasusheavy/google-mcp
npm
v1.0.2
Published by @pegasusheavy — no publish provenance, so origin is unverified, but the source is public: the repository link below is self-declared yet readable, so you can inspect the code before adopting it.
Model Context Protocol (MCP) server for Google Workspace - Calendar, Gmail, Drive, Docs, Sheets, Slides, Meet, Chat, Forms, YouTube, Tasks, and Contacts with OAuth 2.0 authentication
The grade answers one question — how safe is this server for you to adopt — so it is computed in two auditable stages. Nothing below is an opinion or an LLM's guess; every line is a real term the deterministic engine applied, and the same input always yields the same number.
1. Threat score — 100 − 0 = 100. What the published surface and source actually contain:
The deterministic scan raised no scored threat in the surface it inspected — the threat score stayed at 100. Capability observations and advisory notes are recorded but never lower it.
2. Client adoption risk — 100 − 7 = 93. Three small, subtract-only factors that reflect your risk in adopting it — a clean scan proves less on a powerful, unverified or barely-inspectable package, so the grade says so plainly:
| Points | Adoption-risk factor |
|---|---|
| −6 | capability blast radius (high) — client exposure if the model is manipulated |
| −1 | publisher verification (public source) — no provenance, but the source is public and inspectable |
Capability observations and info notes are shown under Findings but never scored.
Open any row's finding below for the file, line and evidence behind a deduction.
Findings 5
critical Completed toxic-flow trifecta across toolsMTC-FLOW-002
This server (without client built-ins) exposes a complete data-exfiltration chain: drive_download_file ⇒ drive_list_files ⇒ chat_send_message. Untrusted input is ingested, private data is read, and it can be sent to an external sink — and at least one leg is a direct schema wire (⇒), where a producer's output drops straight into a free-text parameter of the next tool, so the chain needs little agent cooperation. Static analysis proves the primitive exists, not that a specific run will occur.
Fix: Remove one leg of the trifecta: isolate untrusted-input tools from secret-reading tools and from egress tools, or require human approval between them.
Location: flow drive_download_file → drive_list_files → chat_send_message
medium Tool "drive_delete_file" can modify the filesystemMTC-CAP-002
Tool "drive_delete_file" can write, overwrite or delete files (keyword "delete_file" in tool name). Verify it is scoped to a safe directory.
Fix: Constrain file operations to an explicit, non-sensitive root; reject path traversal.
Location: tool drive_delete_file
medium Tool "drive_move_file" can modify the filesystemMTC-CAP-002
Tool "drive_move_file" can write, overwrite or delete files (keyword "move_file" in tool name). Verify it is scoped to a safe directory.
Fix: Constrain file operations to an explicit, non-sensitive root; reject path traversal.
Location: tool drive_move_file
low Mutating tool "drive_delete_file" declares no destructiveHintMTC-CAP-005
Tool "drive_delete_file" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.
Fix: Declare accurate annotations, and gate destructive tools on user confirmation regardless.
Location: tool drive_delete_file
low Mutating tool "drive_move_file" declares no destructiveHintMTC-CAP-005
Tool "drive_move_file" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.
Fix: Declare accurate annotations, and gate destructive tools on user confirmation regardless.
Location: tool drive_move_file
Tools 130
Each tool and what it can reach — statically extracted from the published source.
chat_send_messagenetwork egressdrive_delete_filewrites filesdrive_download_fileingests untrusted inputdrive_list_filesreads sensitive datadrive_move_filewrites filesdrive_upload_filenetwork egressgmail_get_unreadingests untrusted inputAuthentication Statusno sensitive capabilitycalendar_create_eventno sensitive capabilitycalendar_delete_eventno sensitive capability
Show 120 more tools ↓
calendar_getno sensitive capabilitycalendar_get_eventno sensitive capabilitycalendar_get_freebusyno sensitive capabilitycalendar_listno sensitive capabilitycalendar_list_eventsno sensitive capabilitycalendar_quick_addno sensitive capabilitycalendar_todayno sensitive capabilitycalendar_upcomingno sensitive capabilitycalendar_update_eventno sensitive capabilitychat_add_memberno sensitive capabilitychat_add_reactionno sensitive capabilitychat_create_spaceno sensitive capabilitychat_delete_messageno sensitive capabilitychat_delete_spaceno sensitive capabilitychat_get_messageno sensitive capabilitychat_get_spaceno sensitive capabilitychat_list_membersno sensitive capabilitychat_list_messagesno sensitive capabilitychat_list_spacesno sensitive capabilitychat_remove_memberno sensitive capabilitychat_update_messageno sensitive capabilitycontacts_createno sensitive capabilitycontacts_deleteno sensitive capabilitycontacts_getno sensitive capabilitycontacts_listno sensitive capabilitycontacts_list_groupsno sensitive capabilitycontacts_searchno sensitive capabilityCredentials Pathno sensitive capabilitydocs_append_textno sensitive capabilitydocs_createno sensitive capabilitydocs_insert_textno sensitive capabilitydocs_listno sensitive capabilitydocs_readno sensitive capabilitydocs_replace_textno sensitive capabilitydrive_copy_fileno sensitive capabilitydrive_create_folderno sensitive capabilitydrive_get_fileno sensitive capabilitydrive_rename_fileno sensitive capabilitydrive_searchno sensitive capabilityforms_add_imageno sensitive capabilityforms_add_page_breakno sensitive capabilityforms_add_questionno sensitive capabilityforms_add_textno sensitive capabilityforms_add_videono sensitive capabilityforms_createno sensitive capabilityforms_delete_itemno sensitive capabilityforms_getno sensitive capabilityforms_get_responseno sensitive capabilityforms_list_responsesno sensitive capabilityforms_update_infono sensitive capabilitygmail_get_messageno sensitive capabilitygmail_get_profileno sensitive capabilitygmail_get_threadno sensitive capabilitygmail_list_labelsno sensitive capabilitygmail_list_messagesno sensitive capabilitygmail_mark_readno sensitive capabilitygmail_mark_unreadno sensitive capabilitygmail_replyno sensitive capabilitygmail_searchno sensitive capabilitygmail_sendno sensitive capabilitygmail_trashno sensitive capabilitygoogle_authno sensitive capabilitygoogle_auth_codeno sensitive capabilitygoogle_auth_statusno sensitive capabilitygoogle_logoutno sensitive capabilitymeet_create_instantno sensitive capabilitymeet_create_spaceno sensitive capabilitymeet_end_conferenceno sensitive capabilitymeet_get_by_eventno sensitive capabilitymeet_get_conference_recordno sensitive capabilitymeet_get_recordingno sensitive capabilitymeet_get_spaceno sensitive capabilitymeet_get_transcriptno sensitive capabilitymeet_list_conference_recordsno sensitive capabilitymeet_list_participantsno sensitive capabilitymeet_list_recordingsno sensitive capabilitymeet_list_transcript_entriesno sensitive capabilitymeet_list_transcriptsno sensitive capabilitymeet_list_upcomingno sensitive capabilitymeet_scheduleno sensitive capabilitynotes_createno sensitive capabilitynotes_deleteno sensitive capabilitynotes_listno sensitive capabilitynotes_updateno sensitive capabilitysheets_add_sheetno sensitive capabilitysheets_appendno sensitive capabilitysheets_clearno sensitive capabilitysheets_createno sensitive capabilitysheets_delete_sheetno sensitive capabilitysheets_getno sensitive capabilitysheets_listno sensitive capabilitysheets_readno sensitive capabilitysheets_updateno sensitive capabilityslides_add_imageno sensitive capabilityslides_add_slideno sensitive capabilityslides_add_textno sensitive capabilityslides_createno sensitive capabilityslides_delete_slideno sensitive capabilityslides_duplicate_slideno sensitive capabilityslides_getno sensitive capabilityslides_listno sensitive capabilityslides_replace_textno sensitive capabilitytasks_complete_taskno sensitive capabilitytasks_create_taskno sensitive capabilitytasks_create_tasklistno sensitive capabilitytasks_delete_taskno sensitive capabilitytasks_delete_tasklistno sensitive capabilitytasks_list_tasklistsno sensitive capabilitytasks_list_tasksno sensitive capabilitytasks_update_taskno sensitive capabilityyoutube_get_channelno sensitive capabilityyoutube_get_my_channelno sensitive capabilityyoutube_get_playlist_itemsno sensitive capabilityyoutube_get_videono sensitive capabilityyoutube_get_video_commentsno sensitive capabilityyoutube_list_liked_videosno sensitive capabilityyoutube_list_playlistsno sensitive capabilityyoutube_list_subscriptionsno sensitive capabilityyoutube_rate_videono sensitive capabilityyoutube_searchno sensitive capability
Toxic flows 1
Cross-tool combinations that form a data-exfiltration primitive (untrusted input → sensitive source → external sink).
What this scan could not see
- Tools were statically extracted from the published source (130 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Versions 1
Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.
| Version | Score | Findings | Engine | Scanned |
|---|---|---|---|---|
v1.0.2 latest |
A 93/100 | 5 | 1.13.0 | 2026-09-07 |
Embed this score
Show this server's live Trust Score in your README, docs or website. The badge is served straight from the registry and updates automatically after every rescan — no API key needed. It links back to this page, so anyone who sees the grade can also read the findings behind it instead of taking a number on faith.
Verify this score yourself
The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.
npx mcptrustchecker scan @pegasusheavy/google-mcp --onlineOther implementations of Google 7
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