Gmail, Calendar, Drive, Contacts, Sheets, and Docs — through Hermes-managed OAuth and a thin CLI wrapper. When `gws` is installed, the skill uses it as the execution backend for broader Google Workspace coverage; otherwise it falls back to the bundled Python client implementation.
-`scripts/setup.py` — OAuth2 setup (run once to authorize)
-`scripts/google_api.py` — compatibility wrapper CLI. It prefers `gws` for operations when available, while preserving Hermes' existing JSON output contract.
## First-Time Setup
The setup is fully non-interactive — you drive it step by step so it works
> Credentials → Create Credentials → OAuth 2.0 Client ID
> 4. Application type: "Desktop app" → Create
> 5. If the app is still in Testing, add the user's Google account as a test user here:
> https://console.cloud.google.com/auth/audience
> Audience → Test users → Add users
> 6. Download the JSON file and tell me the file path
>
> Important Hermes CLI note: if the file path starts with `/`, do NOT send only the bare path as its own message in the CLI, because it can be mistaken for a slash command. Send it in a sentence instead, like:
> `The JSON file path is: /home/user/Downloads/client_secret_....json`
This returns JSON with an `auth_url` field and also saves the exact URL to
`~/.hermes/google_oauth_last_url.txt`.
Agent rules for this step:
- Extract the `auth_url` field and send that exact URL to the user as a single line.
- Tell the user that the browser will likely fail on `http://localhost:1` after approval, and that this is expected.
- Tell them to copy the ENTIRE redirected URL from the browser address bar.
- If the user gets `Error 403: access_denied`, send them directly to `https://console.cloud.google.com/auth/audience` to add themselves as a test user.
### Step 4: Exchange the code
The user will paste back either a URL like `http://localhost:1/?code=4/0A...&scope=...`
or just the code string. Either works. The `--auth-url` step stores a temporary
pending OAuth session locally so `--auth-code` can complete the PKCE exchange
If `--auth-code` fails because the code expired, was already used, or came from
an older browser tab, it now returns a fresh `fresh_auth_url`. In that case,
immediately send the new URL to the user and have them retry with the newest
browser redirect only.
### Step 5: Verify
```bash
$GSETUP --check
```
Should print `AUTHENTICATED`. Setup is complete — token refreshes automatically from now on.
### Notes
- Token is stored at `~/.hermes/google_token.json` and auto-refreshes.
- Pending OAuth session state/verifier are stored temporarily at `~/.hermes/google_oauth_pending.json` until exchange completes.
- If `gws` is installed, `google_api.py` points it at the same `~/.hermes/google_token.json` credentials file. Users do not need to run a separate `gws auth login` flow.
- To revoke: `$GSETUP --revoke`
## Usage
All commands go through the API script. Set `GAPI` as a shorthand:
1.**Never send email or create/delete events without confirming with the user first.** Show the draft content and ask for approval.
2.**Check auth before first use** — run `setup.py --check`. If it fails, guide the user through setup.
3.**Use the Gmail search syntax reference** for complex queries — load it with `skill_view("google-workspace", file_path="references/gmail-search-syntax.md")`.
4.**Calendar times must include timezone** — always use ISO 8601 with offset (e.g., `2026-03-01T10:00:00-06:00`) or UTC (`Z`).
5.**Respect rate limits** — avoid rapid-fire sequential API calls. Batch reads when possible.
## Troubleshooting
| Problem | Fix |
|---------|-----|
| `NOT_AUTHENTICATED` | Run setup Steps 2-5 above |