Google

Use this skill when Kate needs to read or act on the user's Google services: email, calendar, tasks, and Drive files. The google extension implements REST API calls; OAuth refresh tokens are handled via environment variables.

Use when

• Read, search, or summarize emails
• List/create/update calendar events
• Query or add Tasks items
• List/download/upload Drive files

Do not use when

• You want write actions without the corresponding operator write flag enabled — the tool returns -32043
• You want a full Google API catalog — this extension covers only Gmail/Calendar/Tasks/Drive

Tool surface

21 tools grouped by service. Reads are unrestricted; writes are gated.

Status

• status — credential presence, endpoints, write-flag state

Gmail (5 tools)

• gmail_list(query?, label_ids?, max_results?, include_spam_trash?, page_token?) — metadata (id + thread_id)
• gmail_read(id, format?) — full message (headers, decoded body_text, labels)
• gmail_search(query, max_results?) — list alias with required query
• gmail_send(to, subject, body) — requires GOOGLE_ALLOW_SEND=true
• gmail_modify_labels(id, add_labels?, remove_labels?) — gated (mark_read, archive, trash)

Calendar (5 tools)

• calendar_list_calendars
• calendar_list_events(calendar_id?, time_min?, time_max?, q?, max_results?, single_events?, order_by?)
• calendar_create_event(calendar_id?, summary, description?, location?, start, end, time_zone?, attendees?) — requires GOOGLE_ALLOW_CALENDAR_WRITE=true
• calendar_update_event(calendar_id?, event_id, patch) — gated
• calendar_delete_event(calendar_id?, event_id) — gated

Tasks (5 tools)

• tasks_list_lists(max_results?)
• tasks_list_tasks(list_id, show_completed?, show_hidden?, max_results?)
• tasks_add(list_id, title, notes?, due?) — requires GOOGLE_ALLOW_TASKS_WRITE=true
• tasks_complete(list_id, task_id) — gated
• tasks_delete(list_id, task_id) — gated

Drive (6 tools)

• drive_list(q?, page_size?, fields?, page_token?, spaces?)
• drive_get(id, fields?)
• drive_download(id, output_path) — writes to disk; output_path must be under GOOGLE_DRIVE_SANDBOX_ROOT
• drive_upload(source_path, name?, parent_id?, mime_type?) — requires GOOGLE_ALLOW_DRIVE_WRITE=true; source path must be under sandbox
• drive_create_folder(name, parent_id?) — gated
• drive_delete(id) — gated

Execution guidance

Read email

1. gmail_search query:"is:unread newer_than:1d" max_results:10 → ids
2. gmail_read id:<id> for each relevant message → body_text + headers
3. Optional: gmail_modify_labels to mark as read (gated)

Daily summary

1. calendar_list_events time_min:<today 00:00Z> time_max:<tomorrow 00:00Z> → agenda
2. tasks_list_tasks list_id:@default show_completed:false → pending tasks
3. gmail_search query:"is:unread" → urgent inbox

Process a Drive PDF

1. drive_list q:"mimeType='application/pdf' and name contains 'factura'" → id
2. drive_download id:<id> output_path:/sandbox/factura.pdf → local
3. pdf-extract.extract_text path:/sandbox/factura.pdf → text
4. summarize.summarize_text text:<...> → summary

Anti-patterns

• Do not expose full email body_text to end users if it contains third-party PII; quote only relevant excerpts.
• Do not loop tasks_add without confirmation; each call persists a row.
• Do not download files that exceed memory limits (hard cap ~50 MB in blocking reqwest body); use storage flow for larger payloads.

Required OAuth scopes

GOOGLE_REFRESH_TOKEN must be generated with the required scopes. Recommended setup (full usage):

https://www.googleapis.com/auth/gmail.readonly
https://www.googleapis.com/auth/gmail.send
https://www.googleapis.com/auth/gmail.modify
https://www.googleapis.com/auth/calendar.readonly
https://www.googleapis.com/auth/calendar.events
https://www.googleapis.com/auth/tasks
https://www.googleapis.com/auth/drive

If your token has read-only scopes, write tools may pass local gating but Google returns 403 insufficient permissions, surfaced as -32012 Forbidden.

Errors