# extend_video

Extend a video by 4-5 seconds using Kling AI. This feature allows you to continue a video beyond its original ending, generating new content that seamlessly follows from the last frame. Perfect for creating longer sequences or adding additional scenes to existing videos.

Agent View of the PolicyLayer registry record for `extend_video`. HTML page: https://policylayer.com/tools/199-mcp-mcp-kling/extend-video

## Facts

- Tool: `extend_video`
- Server: MCP Kling (`199-mcp/mcp-kling`) — https://policylayer.com/tools/199-mcp-mcp-kling.md
- Homepage: https://github.com/199-mcp/mcp-kling
- Risk category: Write (Medium risk)
- Registry record: grade D, 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": "extend_video",
    "arguments": {}
  }
}
```

## Why extend_video is rated Medium

This tool creates new video content by appending to an existing video. It is a creative/generative write operation that modifies/extends a video asset. It is reversible in the sense that the original video is not destroyed, making it Write rather than Destructive. The blast radius is medium as it consumes API credits and generates content, but does not delete data or move money directly.

From the tool's own definition: "Extend a video by 4-5 seconds using Kling AI... generating new content that seamlessly follows from the last frame"

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on MCP Kling (11)

- `create_lipsync` — Execute — https://policylayer.com/tools/199-mcp-mcp-kling/create-lipsync.md
- `generate_image` — Execute — https://policylayer.com/tools/199-mcp-mcp-kling/generate-image.md
- `generate_image_to_video` — Execute — https://policylayer.com/tools/199-mcp-mcp-kling/generate-image-to-video.md
- `virtual_try_on` — Execute — https://policylayer.com/tools/199-mcp-mcp-kling/virtual-try-on.md
- `generate_video` — Financial — https://policylayer.com/tools/199-mcp-mcp-kling/generate-video.md
- `check_image_status` — Read — https://policylayer.com/tools/199-mcp-mcp-kling/check-image-status.md
- `check_video_status` — Read — https://policylayer.com/tools/199-mcp-mcp-kling/check-video-status.md
- `get_account_balance` — Read — https://policylayer.com/tools/199-mcp-mcp-kling/get-account-balance.md
- `get_resource_packages` — Read — https://policylayer.com/tools/199-mcp-mcp-kling/get-resource-packages.md
- `list_tasks` — Read — https://policylayer.com/tools/199-mcp-mcp-kling/list-tasks.md
- `apply_video_effect` — Write — https://policylayer.com/tools/199-mcp-mcp-kling/apply-video-effect.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=199-mcp-mcp-kling · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/199-mcp-mcp-kling