Connect Codex to Google Drive
Give your Codex agent access to Google Drive in Melso — 77 tools it can call while it works through a task.
Set it up in Melso
- 1In Melso, open Settings → Agent Apps and hit Connect on Google Drive.
- 2Finish the OAUTH2 sign-in in the window that opens. Melso stores the connection, not your credentials.
- 3Open your Codex agent, go to its Agent Apps tab, and allow Google Drive.
- 4Give the agent a task. It calls Google Drive itself when the work needs it.
What Google Drive gives your agent
The tools, permissions, and events Google Drive exposes — the same ones your agent can use once the app is authorized.
What you sign in with
Google Drive connects with OAUTH2.
- Client id
- Client secret
Permissions
Tools Google Drive exposes
Add file sharing preference (Deprecated)
DEPRECATED: Use GOOGLEDRIVE_CREATE_PERMISSION instead; use GOOGLEDRIVE_UPDATE_PERMISSION to modify existing permissions (avoids duplicate entries). Modifies sharing permissions for an existing Google Drive file, granting a specified role to a user, group, domain, or 'anyone'. Bulk calls may trigger 403 rateLimitExceeded (~100 req/100s/user); use jittered exponential backoff.
Insert File Parent (v2)
Tool to add a parent folder for a file using Google Drive API v2. Use when you need to add a file to an additional folder.
Insert Property (v2 API)
Tool to add a property to a file, or update it if it already exists (v2 API). Use when you need to attach custom key-value metadata to a Google Drive file.
Copy file (Deprecated)
DEPRECATED: Use GOOGLEDRIVE_COPY_FILE_ADVANCED instead. Duplicates an existing file (not folders) in Google Drive by `file_id`; copy lands in same folder as original — use GOOGLEDRIVE_MOVE_FILE afterward for precise placement. Copy receives a new `file_id`; update stored references accordingly. For shared drives, requires organizer/manager rights.
Copy file with advanced options
Creates a copy of a file and applies any requested updates with patch semantics. Use when you need to duplicate a file with advanced options like label inclusion, visibility settings, or custom metadata.
Create Comment
Tool to create a comment on a file in Google Drive. Returns a nested `data` object; extract `data.id` for the resulting comment identifier. Omit `anchor` and `quoted_file_content_*` for general file-level comments.
Create Shared Drive
Tool to create a new shared drive. Use when you need to programmatically create a new shared drive for collaboration or storage.
Create File or Folder
Creates a new file or folder in Google Drive. Supports both metadata-only creation (for folders and empty documents) and file upload with content. When file_to_upload is provided, uploads the actual file bytes; otherwise creates an empty file. Native Google file types (Docs, Sheets, Forms, etc.) and folders are created as empty shells when no content is provided; content must be added manually afterward. Newly created files are private by default — set sharing permissions afterward for collaboration. For shared-drive folders, use this tool with the target folder ID in `parents` rather than GOOGLEDRIVE_CREATE_FOLDER.
Events your agent can react to
Comment Added (Docs/Sheets/Slides)
Triggers when a new comment is added to Google Docs, Sheets, or Slides.
File Created
Triggers when a new file is created in Google Drive.
File Deleted or Trashed
Triggers when a file is moved to trash or permanently deleted in Drive.
File Shared (Permissions Added)
Triggers when new sharing permissions are granted to a file or folder. Uses Drive's `changes.list` endpoint with inline `permissions` in the `fields` mask so each change carries the file's current permission set provider-atomically. We diff that against `seen_permission_keys` to identify newly added grants. Drive page tokens are the primary cursor; if Drive rejects a stored token, the trigger raises `PollingTriggerError` without clearing state rather than silently re-baselining and dropping events. Limitation: truly ephemeral permissions (added and revoked between two polls without any other file modification in between) are not detected. Drive Activity API would catch those but requires an additional OAuth scope and a different payload contract.
File Updated
Triggers when a file's metadata or content changes in Google Drive.
Google Drive Changes
Triggers when changes are detected in a Google Drive.