Google Drive Integration

This skill provides access to Google Drive and Google Docs/Sheets/Slides via the Drive API.

Setup Required

Uses OAuth with persistent refresh token (same setup for Calendar, Gmail, Drive).

One-time setup:

google-oauth-setup <path-to-client-secret.json>

See claude/skills/SETUP.md for detailed OAuth setup instructions.

Get Access Token (auto-refreshes):

ACCESS_TOKEN=$(google-oauth-token)

Re-authentication

If you get invalid_grant or reauth related error, the OAuth token has expired. Re-authenticate using gcloud:

# Re-authenticate with required scopes
gcloud auth application-default login \
  --scopes="https://www.googleapis.com/auth/calendar.readonly,https://www.googleapis.com/auth/gmail.readonly,https://www.googleapis.com/auth/drive.readonly,https://www.googleapis.com/auth/cloud-platform"

# Migrate the new credentials
google-oauth-setup --migrate-gcloud

This will open a browser for authentication, then migrate the credentials to the google-oauth config.

Required header for all requests:

-H "x-goog-user-project: ${GOOGLE_QUOTA_PROJECT}"

When to Use

Use this skill when the user:

• Asks about Google Drive files or documents
• Wants to search for a document
• Needs to read content from a Google Doc or Sheet
• Asks about recent files
• Mentions "Drive", "Google Docs", or "Google Sheets"

API Endpoints

Drive API (files, search)

Base URL: https://www.googleapis.com/drive/v3

IMPORTANT: Shared Drives - Always include these parameters on search/list calls to find files in Shared Drives:

• includeItemsFromAllDrives=true
• supportsAllDrives=true
• corpora=allDrives

And on single-file metadata calls, include supportsAllDrives=true.

List Recent Files:

curl -s -G "https://www.googleapis.com/drive/v3/files" \
  --data-urlencode "pageSize=20" \
  --data-urlencode "orderBy=modifiedTime desc" \
  --data-urlencode "includeItemsFromAllDrives=true" \
  --data-urlencode "supportsAllDrives=true" \
  --data-urlencode "corpora=allDrives" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" | jq '.files[] | {name, id, mimeType}'

Search Files:

curl -s -G "https://www.googleapis.com/drive/v3/files" \
  --data-urlencode "q=name contains 'meeting notes'" \
  --data-urlencode "pageSize=20" \
  --data-urlencode "includeItemsFromAllDrives=true" \
  --data-urlencode "supportsAllDrives=true" \
  --data-urlencode "corpora=allDrives" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}"

Get File Metadata:

curl -s "https://www.googleapis.com/drive/v3/files/{FILE_ID}?fields=*&supportsAllDrives=true" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}"

Export Google Doc as Text:

curl -s "https://www.googleapis.com/drive/v3/files/{FILE_ID}/export?mimeType=text/plain" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}"

Docs API (read document content)

Base URL: https://docs.googleapis.com/v1

Get Document Content:

curl -s "https://docs.googleapis.com/v1/documents/{DOCUMENT_ID}" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}"

Sheets API (read spreadsheet data)

Base URL: https://sheets.googleapis.com/v4

Get Spreadsheet Metadata:

curl -s "https://sheets.googleapis.com/v4/spreadsheets/{SPREADSHEET_ID}" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}"

Read Sheet Values:

curl -s "https://sheets.googleapis.com/v4/spreadsheets/{SPREADSHEET_ID}/values/{RANGE}" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}"
# Example RANGE: Sheet1!A1:D10, or just A1:D10 for first sheet

Search Query Syntax

The q parameter uses Drive search syntax:

Combine with and/or: name contains 'meeting' and mimeType = 'application/vnd.google-apps.document'

MIME Types

Common Workflows

Search for a Document

ACCESS_TOKEN=$(google-oauth-token)

curl -s -G "https://www.googleapis.com/drive/v3/files" \
  --data-urlencode "q=name contains 'project plan' and mimeType = 'application/vnd.google-apps.document'" \
  --data-urlencode "fields=files(id,name,modifiedTime,webViewLink)" \
  --data-urlencode "includeItemsFromAllDrives=true" \
  --data-urlencode "supportsAllDrives=true" \
  --data-urlencode "corpora=allDrives" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}"

Read a Google Doc

# Export as plain text
DOC_ID="1abc123..."
curl -s "https://www.googleapis.com/drive/v3/files/${DOC_ID}/export?mimeType=text/plain" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}"

Read a Google Sheet

SHEET_ID="1abc123..."
# Get all values from first sheet
curl -s "https://sheets.googleapis.com/v4/spreadsheets/${SHEET_ID}/values/A:Z" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" | jq '.values'

List Recent Docs

curl -s -G "https://www.googleapis.com/drive/v3/files" \
  --data-urlencode "q=mimeType = 'application/vnd.google-apps.document'" \
  --data-urlencode "orderBy=modifiedTime desc" \
  --data-urlencode "pageSize=10" \
  --data-urlencode "fields=files(id,name,modifiedTime)" \
  --data-urlencode "includeItemsFromAllDrives=true" \
  --data-urlencode "supportsAllDrives=true" \
  --data-urlencode "corpora=allDrives" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}"

Search File Content

curl -s -G "https://www.googleapis.com/drive/v3/files" \
  --data-urlencode "q=fullText contains 'quarterly review'" \
  --data-urlencode "fields=files(id,name,mimeType,webViewLink)" \
  --data-urlencode "includeItemsFromAllDrives=true" \
  --data-urlencode "supportsAllDrives=true" \
  --data-urlencode "corpora=allDrives" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}"

Export Formats

Google Docs can be exported to various formats:

Extracting File IDs from URLs

Google Drive URLs:

• Doc: https://docs.google.com/document/d/{FILE_ID}/edit
• Sheet: https://docs.google.com/spreadsheets/d/{FILE_ID}/edit
• Drive: https://drive.google.com/file/d/{FILE_ID}/view

The FILE_ID is the long alphanumeric string between /d/ and the next /.

Google Docs Revision History

To access historical revisions of a Google Doc:

Get revision list:

curl -s "https://www.googleapis.com/drive/v3/files/${DOC_ID}/revisions?fields=revisions(id,modifiedTime,exportLinks,lastModifyingUser(displayName))" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" \
  -H "x-goog-user-project: ${GOOGLE_QUOTA_PROJECT}"

Export a specific revision (use exportLinks, NOT the export endpoint):

# IMPORTANT: The Drive export endpoint ignores the revision parameter for Google Docs!
# You MUST use the exportLinks from the revision metadata instead.

# Get the exportLink for a specific revision
EXPORT_URL=$(curl -s "https://www.googleapis.com/drive/v3/files/${DOC_ID}/revisions/${REV_ID}?fields=exportLinks" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" | jq -r '.exportLinks["text/plain"]')

# Download using that link
curl -sL "$EXPORT_URL" -H "Authorization: Bearer ${ACCESS_TOKEN}"

IMPORTANT CAVEATS:

• The revision parameter on /export is IGNORED for Google Docs - it always returns current content
• You MUST use the exportLinks URLs from the revisions API to get historical content
• Rate limiting is aggressive - add 2-3 second delays between revision downloads
• Documents with multiple tabs: the text export only includes the main tab
• Deleted tabs: revisions may reference content from tabs that no longer exist

Notes

• Access tokens expire after 1 hour
• Google Docs exported as text lose formatting
• For Sheets, specify range to avoid downloading huge datasets
• fields parameter reduces response size (use for faster queries)
• Full-text search only works on files owned or shared with you