# completion

DeepSeek V4 Pro FIM completion tool for prompt/suffix fill-in-the-middle workflows. Defaults to

Agent View of the PolicyLayer registry record for `completion`. HTML page: https://policylayer.com/tools/deepseek-mcp-server/completion

## Facts

- Tool: `completion`
- Server: DeepSeek MCP Server (`deepseek-mcp-server`) — https://policylayer.com/tools/deepseek-mcp-server.md
- Install: `npx -y deepseek-mcp-server`
- Homepage: https://github.com/DMontgomery40/deepseek-mcp-server
- Risk category: Execute (High 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": "completion",
    "arguments": {}
  }
}
```

## Why completion is rated High

This tool sends prompts to an external AI service (DeepSeek V4 Pro) and retrieves generated completions. It is not a simple read (it triggers external computation/inference), nor does it write/delete/move money. The closest category is Execute, as it runs an external operation whose output depends on the arguments supplied.

From the tool's own definition: "'FIM completion tool for prompt/suffix fill-in-the-middle workflows' — triggers an external AI model inference call via DeepSeek API"

## Use case

AI agents invoke completion to trigger actions in DeepSeek MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "completion": {
      "limits": [
        {
          "counter": "completion_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on DeepSeek MCP Server (6)

- `reset_conversation` — Destructive — https://policylayer.com/tools/deepseek-mcp-server/reset-conversation.md
- `chat_completion` — Execute — https://policylayer.com/tools/deepseek-mcp-server/chat-completion.md
- `create_response` — Execute — https://policylayer.com/tools/deepseek-mcp-server/create-response.md
- `get_user_balance` — Read — https://policylayer.com/tools/deepseek-mcp-server/get-user-balance.md
- `list_conversations` — Read — https://policylayer.com/tools/deepseek-mcp-server/list-conversations.md
- `list_models` — Read — https://policylayer.com/tools/deepseek-mcp-server/list-models.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=deepseek-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/deepseek-mcp-server