# export_canvas_handoff

PRD 项目导出 canvas-handoff.json + penpot/reframe/tldraw Prompt + wireframe.tldr，供外部 MCP 绘制原型（PRD 仍由 deppon-prd-mcp 管理）。

Agent View of the PolicyLayer registry record for `export_canvas_handoff`. HTML page: https://policylayer.com/tools/deppon-deppon-prd-mcp/export-canvas-handoff

## Facts

- Tool: `export_canvas_handoff`
- Server: Deppon Prd (`@deppon/deppon-prd-mcp`) — https://policylayer.com/tools/deppon-deppon-prd-mcp.md
- Install: `npx -y @deppon/deppon-prd-mcp`
- Homepage: https://www.npmjs.com/package/@deppon/deppon-prd-mcp
- Risk category: Read (Low risk)
- Registry record: grade C, identity unverified
- Server rate-limited: no
- Parameters: 2 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `slug` | string | yes | 项目 slug |
| `target` | string | no | handoff 目标，默认 all（含 tldraw 线框） |

Parameters from the server's own tool schema.

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "export_canvas_handoff",
    "arguments": {
      "slug": "<slug>"
    }
  }
}
```

## Why export_canvas_handoff is rated Low

The tool exports/generates files from an existing PRD project for use by external tools. Export operations are read-like in nature — they read project data and produce output artifacts without modifying or deleting the source data. The PRD is explicitly noted to remain managed by deppon-prd-mcp, confirming no destructive or write side-effects on the source.

From the tool's own definition: "导出 canvas-handoff.json + penpot/reframe/tldraw Prompt + wireframe.tldr，供外部 MCP 绘制原型"

## Use case

AI agents call export_canvas_handoff to retrieve information from Deppon Prd 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 Deppon Prd:

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

## Other tools on Deppon Prd (5)

- `get_prd_project` — Read — https://policylayer.com/tools/deppon-deppon-prd-mcp/get-prd-project.md
- `list_prd_projects` — Read — https://policylayer.com/tools/deppon-deppon-prd-mcp/list-prd-projects.md
- `generate_prd` — Write — https://policylayer.com/tools/deppon-deppon-prd-mcp/generate-prd.md
- `generate_prototype` — Write — https://policylayer.com/tools/deppon-deppon-prd-mcp/generate-prototype.md
- `open_prd_studio` — Write — https://policylayer.com/tools/deppon-deppon-prd-mcp/open-prd-studio.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=deppon-deppon-prd-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/deppon-deppon-prd-mcp