# gmail_modify_labels

Add or remove labels from a specific message

Agent View of the PolicyLayer registry record for `gmail_modify_labels`. HTML page: https://policylayer.com/tools/sagemcp-sagemcp/gmail-modify-labels

## Facts

- Tool: `gmail_modify_labels`
- Server: Sage MCP (`sagemcp/sagemcp`) — https://policylayer.com/tools/sagemcp-sagemcp.md
- Homepage: https://github.com/sagemcp/sagemcp
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "gmail_modify_labels",
    "arguments": {}
  }
}
```

## Why gmail_modify_labels is rated Medium

This tool modifies email labels (tags/folders) which changes how messages are organized and categorized in Gmail. While reversible (labels can be added back), this is a Write operation that alters message state. The severity is high because an adversary could manipulate labels to hide emails, reorganize inboxes, mark important messages as spam, or create confusion in email organization.

From the tool's own definition: "Tool name 'gmail_modify_labels' and description 'Add or remove labels from a specific message' indicate modification of email metadata. The actions 'Add or remove labels' are reversible write operations on Gmail message attributes."

## Use case

AI agents use gmail_modify_labels to create or update resources in Sage MCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Sage MCP environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Sage MCP:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "gmail_modify_labels": {
      "limits": [
        {
          "counter": "gmail_modify_labels_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Sage MCP (358)

- `claude_code_delete_invite` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/claude-code-delete-invite.md
- `claude_code_remove_user` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/claude-code-remove-user.md
- `codex_delete_user` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/codex-delete-user.md
- `confluence_delete_page` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/confluence-delete-page.md
- `copilot_remove_seats` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/copilot-remove-seats.md
- `cursor_remove_member` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/cursor-remove-member.md
- `discord_delete_message` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/discord-delete-message.md
- `excel_clear_range` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/excel-clear-range.md
- `excel_delete_worksheet` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/excel-delete-worksheet.md
- `gmail_trash_message` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/gmail-trash-message.md
- `google_sheets_batch_update` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/google-sheets-batch-update.md
- `google_sheets_clear_range` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/google-sheets-clear-range.md
- `google_sheets_delete_sheet` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/google-sheets-delete-sheet.md
- `google_slides_delete_slide` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/google-slides-delete-slide.md
- `outlook_delete_message` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/outlook-delete-message.md
- `powerpoint_delete_presentation` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/powerpoint-delete-presentation.md
- `slack_reactions_remove` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/slack-reactions-remove.md
- `zoom_delete_meeting` — Destructive — https://policylayer.com/tools/sagemcp-sagemcp/zoom-delete-meeting.md
- `bitbucket_trigger_pipeline` — Execute — https://policylayer.com/tools/sagemcp-sagemcp/bitbucket-trigger-pipeline.md
- `excel_run_formula` — Execute — https://policylayer.com/tools/sagemcp-sagemcp/excel-run-formula.md
- `gitlab_retry_pipeline` — Execute — https://policylayer.com/tools/sagemcp-sagemcp/gitlab-retry-pipeline.md
- `copilot_add_seats` — Financial — https://policylayer.com/tools/sagemcp-sagemcp/copilot-add-seats.md
- `cursor_set_user_spend_limit` — Financial — https://policylayer.com/tools/sagemcp-sagemcp/cursor-set-user-spend-limit.md
- `bitbucket_get_diff` — Read — https://policylayer.com/tools/sagemcp-sagemcp/bitbucket-get-diff.md
- `bitbucket_get_file` — Read — https://policylayer.com/tools/sagemcp-sagemcp/bitbucket-get-file.md
- `bitbucket_get_issue` — Read — https://policylayer.com/tools/sagemcp-sagemcp/bitbucket-get-issue.md
- `bitbucket_get_pipeline` — Read — https://policylayer.com/tools/sagemcp-sagemcp/bitbucket-get-pipeline.md
- `bitbucket_get_pull_request` — Read — https://policylayer.com/tools/sagemcp-sagemcp/bitbucket-get-pull-request.md
- `bitbucket_get_repository` — Read — https://policylayer.com/tools/sagemcp-sagemcp/bitbucket-get-repository.md
- `bitbucket_list_branches` — Read — https://policylayer.com/tools/sagemcp-sagemcp/bitbucket-list-branches.md
- …and 328 more: https://policylayer.com/tools/sagemcp-sagemcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=sagemcp-sagemcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/sagemcp-sagemcp