# delete_unit

Delete a measurement unit from Mealie.

Agent View of the PolicyLayer registry record for `delete_unit`. HTML page: https://policylayer.com/tools/nikopol666-mealie-mcp/delete-unit

## Facts

- Tool: `delete_unit`
- Server: Mealie MCP Server (`nikopol666/mealie-mcp`) — https://policylayer.com/tools/nikopol666-mealie-mcp.md
- Homepage: https://github.com/nikopol666/mealie-mcp
- Risk category: Destructive (Critical risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Hidden

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

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

## Why delete_unit is rated Critical

This tool deletes data that cannot be recovered. While deleting a unit has moderate scope (affects measurements rather than recipes or user data directly), the irreversible nature and potential cascade effects (any recipes using that unit could be affected) classify it as Destructive.

From the tool's own definition: "Tool performs deletion of a measurement unit: 'Delete a measurement unit from Mealie.' The operation is irreversible and removes data permanently."

## Use case

AI agents call delete_unit to permanently remove resources in Mealie MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

## Recommended policy (PolicyLayer)

Verdict: **Hidden**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Mealie MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_unit"
  ]
}
```

## Other tools on Mealie MCP Server (242)

- `bulk_delete_recipes` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/bulk-delete-recipes.md
- `delete_admin_backup` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-admin-backup.md
- `delete_admin_group` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-admin-group.md
- `delete_admin_household` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-admin-household.md
- `delete_admin_user` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-admin-user.md
- `delete_category` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-category.md
- `delete_comment` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-comment.md
- `delete_cookbook` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-cookbook.md
- `delete_food` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-food.md
- `delete_group_label` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-group-label.md
- `delete_group_report` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-group-report.md
- `delete_household_notification` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-household-notification.md
- `delete_household_webhook` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-household-webhook.md
- `delete_meal_plan_entry` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-meal-plan-entry.md
- `delete_meal_plan_rule` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-meal-plan-rule.md
- `delete_recipe` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-recipe.md
- `delete_recipe_action` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-recipe-action.md
- `delete_recipe_image` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-recipe-image.md
- `delete_recipe_timeline_event` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-recipe-timeline-event.md
- `delete_recipe_tool` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-recipe-tool.md
- `delete_shared_recipe_record` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-shared-recipe-record.md
- `delete_shopping_item` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-shopping-item.md
- `delete_shopping_items` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-shopping-items.md
- `delete_shopping_list` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-shopping-list.md
- `delete_tag` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-tag.md
- `delete_user_api_token` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-user-api-token.md
- `delete_user_favorite` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/delete-user-favorite.md
- `purge_recipe_exports` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/purge-recipe-exports.md
- `remove_recipe_from_shopping_list` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/remove-recipe-from-shopping-list.md
- `restore_admin_backup` — Destructive — https://policylayer.com/tools/nikopol666-mealie-mcp/restore-admin-backup.md
- …and 212 more: https://policylayer.com/tools/nikopol666-mealie-mcp.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`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=nikopol666-mealie-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/nikopol666-mealie-mcp