# list_deployments

List Vercel deployments

Agent View of the PolicyLayer registry record for `list_deployments`. HTML page: https://policylayer.com/tools/io-github-portel-dev-ncp/list-deployments

## Facts

- Tool: `list_deployments`
- Server: Ncp (`@portel/ncp`) — https://policylayer.com/tools/io-github-portel-dev-ncp.md
- Install: `npx -y @portel/ncp`
- Homepage: https://github.com/portel-dev/ncp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

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

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

## Why list_deployments is rated Low

This tool retrieves and displays deployment information from Vercel without creating, modifying, deleting, or executing any operations. It has no side effects and minimal blast radius if misused by an AI agent—at worst, it exposes deployment metadata that may already be accessible to authenticated users.

From the tool's own definition: "Tool name 'list_deployments' and description 'List Vercel deployments' indicate retrieval of deployment information without modification. The verb 'list' is a read operation that queries existing data."

## Use case

AI agents call list_deployments to retrieve information from Ncp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_deployments": {}
  }
}
```

## Other tools on Ncp (274)

- `backup` — Destructive — https://policylayer.com/tools/io-github-portel-dev-ncp/backup.md
- `bulk_delete` — Destructive — https://policylayer.com/tools/io-github-portel-dev-ncp/bulk-delete.md
- `delete` — Destructive — https://policylayer.com/tools/io-github-portel-dev-ncp/delete.md
- `delete_event` — Destructive — https://policylayer.com/tools/io-github-portel-dev-ncp/delete-event.md
- `delete_key` — Destructive — https://policylayer.com/tools/io-github-portel-dev-ncp/delete-key.md
- `delete_memory` — Destructive — https://policylayer.com/tools/io-github-portel-dev-ncp/delete-memory.md
- `purge_cache` — Destructive — https://policylayer.com/tools/io-github-portel-dev-ncp/purge-cache.md
- `remove` — Destructive — https://policylayer.com/tools/io-github-portel-dev-ncp/remove.md
- `remove_container` — Destructive — https://policylayer.com/tools/io-github-portel-dev-ncp/remove-container.md
- `write_query` — Destructive — https://policylayer.com/tools/io-github-portel-dev-ncp/write-query.md
- `apply` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/apply.md
- `apply_manifest` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/apply-manifest.md
- `build_image` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/build-image.md
- `build_job` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/build-job.md
- `bulk_operations` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/bulk-operations.md
- `click_element` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/click-element.md
- `clone` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/clone.md
- `connect` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/connect.md
- `consume` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/consume.md
- `create_completion` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/create-completion.md
- `create_context` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/create-context.md
- `create_image` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/create-image.md
- `create_prediction` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/create-prediction.md
- `create_video` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/create-video.md
- `deploy` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/deploy.md
- `deploy_project` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/deploy-project.md
- `deploy_server` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/deploy-server.md
- `deploy_site` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/deploy-site.md
- `exec` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/exec.md
- `exec_async` — Execute — https://policylayer.com/tools/io-github-portel-dev-ncp/exec-async.md
- …and 244 more: https://policylayer.com/tools/io-github-portel-dev-ncp.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=io-github-portel-dev-ncp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-portel-dev-ncp