# mcp_rename_collection

A write tool on the Mongo-MCP MCP server.

Agent View of the PolicyLayer registry record for `mcp_rename_collection`. HTML page: https://policylayer.com/tools/441126098-mongo-mcp/mcp-rename-collection

## Facts

- Tool: `mcp_rename_collection`
- Server: Mongo-MCP (`441126098/mongo-mcp`) — https://policylayer.com/tools/441126098-mongo-mcp.md
- Homepage: https://github.com/441126098/mongo-mcp
- 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": "mcp_rename_collection",
    "arguments": {}
  }
}
```

## Why mcp_rename_collection is rated Medium

Renaming a collection is a write operation—it modifies collection metadata reversibly without deleting data or executing arbitrary code. However, it ranks as 'high' severity because an agent misusing this could rename critical collections, causing application failures, confusion, or service disruption if the collection names are hardcoded or expected by dependent systems.

From the tool's own definition: "Tool name 'mcp_rename_collection' indicates modification of collection metadata. Sibling tools include 'mcp_drop_collection' (destructive) and 'mcp_create_collection' (write). Renaming is a reversible structural modification to a collection."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Mongo-MCP (29)

- `mcp_delete_document` — Destructive — https://policylayer.com/tools/441126098-mongo-mcp/mcp-delete-document.md
- `mcp_drop_collection` — Destructive — https://policylayer.com/tools/441126098-mongo-mcp/mcp-drop-collection.md
- `mcp_drop_database` — Destructive — https://policylayer.com/tools/441126098-mongo-mcp/mcp-drop-database.md
- `mcp_drop_index` — Destructive — https://policylayer.com/tools/441126098-mongo-mcp/mcp-drop-index.md
- `mcp_aggregate_documents` — Execute — https://policylayer.com/tools/441126098-mongo-mcp/mcp-aggregate-documents.md
- `mcp_reindex_collection` — Execute — https://policylayer.com/tools/441126098-mongo-mcp/mcp-reindex-collection.md
- `mcp_count_documents` — Read — https://policylayer.com/tools/441126098-mongo-mcp/mcp-count-documents.md
- `mcp_distinct_values` — Read — https://policylayer.com/tools/441126098-mongo-mcp/mcp-distinct-values.md
- `mcp_find_documents` — Read — https://policylayer.com/tools/441126098-mongo-mcp/mcp-find-documents.md
- `mcp_find_one_document` — Read — https://policylayer.com/tools/441126098-mongo-mcp/mcp-find-one-document.md
- `mcp_get_collection_stats` — Read — https://policylayer.com/tools/441126098-mongo-mcp/mcp-get-collection-stats.md
- `mcp_get_connection_details` — Read — https://policylayer.com/tools/441126098-mongo-mcp/mcp-get-connection-details.md
- `mcp_get_database_stats` — Read — https://policylayer.com/tools/441126098-mongo-mcp/mcp-get-database-stats.md
- `mcp_get_replica_set_status` — Read — https://policylayer.com/tools/441126098-mongo-mcp/mcp-get-replica-set-status.md
- `mcp_get_server_status` — Read — https://policylayer.com/tools/441126098-mongo-mcp/mcp-get-server-status.md
- `mcp_list_collections` — Read — https://policylayer.com/tools/441126098-mongo-mcp/mcp-list-collections.md
- `mcp_list_databases` — Read — https://policylayer.com/tools/441126098-mongo-mcp/mcp-list-databases.md
- `mcp_list_indexes` — Read — https://policylayer.com/tools/441126098-mongo-mcp/mcp-list-indexes.md
- `mcp_ping_database` — Read — https://policylayer.com/tools/441126098-mongo-mcp/mcp-ping-database.md
- `mcp_test_mongodb_connection` — Read — https://policylayer.com/tools/441126098-mongo-mcp/mcp-test-mongodb-connection.md
- `mcp_create_collection` — Write — https://policylayer.com/tools/441126098-mongo-mcp/mcp-create-collection.md
- `mcp_create_compound_index` — Write — https://policylayer.com/tools/441126098-mongo-mcp/mcp-create-compound-index.md
- `mcp_create_database` — Write — https://policylayer.com/tools/441126098-mongo-mcp/mcp-create-database.md
- `mcp_create_index` — Write — https://policylayer.com/tools/441126098-mongo-mcp/mcp-create-index.md
- `mcp_create_text_index` — Write — https://policylayer.com/tools/441126098-mongo-mcp/mcp-create-text-index.md
- `mcp_insert_document` — Write — https://policylayer.com/tools/441126098-mongo-mcp/mcp-insert-document.md
- `mcp_insert_many_documents` — Write — https://policylayer.com/tools/441126098-mongo-mcp/mcp-insert-many-documents.md
- `mcp_replace_document` — Write — https://policylayer.com/tools/441126098-mongo-mcp/mcp-replace-document.md
- `mcp_update_document` — Write — https://policylayer.com/tools/441126098-mongo-mcp/mcp-update-document.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=441126098-mongo-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/441126098-mongo-mcp