Several docs tools (search_docs, get_doc_content, list_docs_in_folder,
export_doc_to_pdf) and sheets tools (list_spreadsheets) internally use
the Google Drive API but only receive docs/sheets-specific OAuth scopes
when configured with `--tools docs sheets` (without `drive`).
This adds the minimal required Drive scopes as cross-service dependencies:
- docs: drive.readonly (metadata queries) + drive.file (PDF export)
- sheets: drive.readonly (spreadsheet listing)
This follows the existing pattern where appscript already includes
DRIVE_FILE_SCOPE for its Drive API dependency.
The alternative workaround of adding `--tools drive` exposes 14
full-access Drive tools which is undesirable from a security perspective.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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