# appendMediaUpload

Append data chunks to an in-progress media upload.

Agent View of the PolicyLayer registry record for `appendMediaUpload`. HTML page: https://policylayer.com/tools/xdevplatform-xmcp/appendmediaupload

## Facts

- Tool: `appendMediaUpload`
- Server: Xdevplatform/xmcp (`xdevplatform/xmcp`) — https://policylayer.com/tools/xdevplatform-xmcp.md
- Homepage: https://github.com/xdevplatform/xmcp
- 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": "appendMediaUpload",
    "arguments": {}
  }
}
```

## Why appendMediaUpload is rated Medium

This tool creates or modifies data in a reversible manner—appending chunks to a media upload. It does not execute arbitrary code, delete data, or move money. While the upload process itself may have side effects depending on what is uploaded, the tool's core function is data modification (appending), placing it in the Write category.

From the tool's own definition: "Tool name 'appendMediaUpload' and description 'Append data chunks to an in-progress media upload' indicate modifying an ongoing upload operation by adding data chunks."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Xdevplatform/xmcp (134)

- `deleteAccountActivitySubscription` — Destructive — https://policylayer.com/tools/xdevplatform-xmcp/deleteaccountactivitysubscription.md
- `deleteActivitySubscription` — Destructive — https://policylayer.com/tools/xdevplatform-xmcp/deleteactivitysubscription.md
- `deleteAllConnections` — Destructive — https://policylayer.com/tools/xdevplatform-xmcp/deleteallconnections.md
- `deleteCommunityNotes` — Destructive — https://policylayer.com/tools/xdevplatform-xmcp/deletecommunitynotes.md
- `deleteConnectionsByEndpoint` — Destructive — https://policylayer.com/tools/xdevplatform-xmcp/deleteconnectionsbyendpoint.md
- `deleteConnectionsByUuids` — Destructive — https://policylayer.com/tools/xdevplatform-xmcp/deleteconnectionsbyuuids.md
- `deleteDirectMessagesEvents` — Destructive — https://policylayer.com/tools/xdevplatform-xmcp/deletedirectmessagesevents.md
- `deleteLists` — Destructive — https://policylayer.com/tools/xdevplatform-xmcp/deletelists.md
- `deleteMediaSubtitles` — Destructive — https://policylayer.com/tools/xdevplatform-xmcp/deletemediasubtitles.md
- `deletePosts` — Destructive — https://policylayer.com/tools/xdevplatform-xmcp/deleteposts.md
- `deleteUsersBookmark` — Destructive — https://policylayer.com/tools/xdevplatform-xmcp/deleteusersbookmark.md
- `removeListsMemberByUserId` — Destructive — https://policylayer.com/tools/xdevplatform-xmcp/removelistsmemberbyuserid.md
- `createComplianceJobs` — Execute — https://policylayer.com/tools/xdevplatform-xmcp/createcompliancejobs.md
- `sendChatTypingIndicator` — Execute — https://policylayer.com/tools/xdevplatform-xmcp/sendchattypingindicator.md
- `chatMediaDownload` — Read — https://policylayer.com/tools/xdevplatform-xmcp/chatmediadownload.md
- `dmConversationsMediaDownload` — Read — https://policylayer.com/tools/xdevplatform-xmcp/dmconversationsmediadownload.md
- `getAccountActivitySubscriptionCount` — Read — https://policylayer.com/tools/xdevplatform-xmcp/getaccountactivitysubscriptioncount.md
- `getAccountActivitySubscriptions` — Read — https://policylayer.com/tools/xdevplatform-xmcp/getaccountactivitysubscriptions.md
- `getActivitySubscriptions` — Read — https://policylayer.com/tools/xdevplatform-xmcp/getactivitysubscriptions.md
- `getChatConversation` — Read — https://policylayer.com/tools/xdevplatform-xmcp/getchatconversation.md
- `getChatConversations` — Read — https://policylayer.com/tools/xdevplatform-xmcp/getchatconversations.md
- `getCommunitiesById` — Read — https://policylayer.com/tools/xdevplatform-xmcp/getcommunitiesbyid.md
- `getComplianceJobs` — Read — https://policylayer.com/tools/xdevplatform-xmcp/getcompliancejobs.md
- `getComplianceJobsById` — Read — https://policylayer.com/tools/xdevplatform-xmcp/getcompliancejobsbyid.md
- `getConnectionHistory` — Read — https://policylayer.com/tools/xdevplatform-xmcp/getconnectionhistory.md
- `getDirectMessagesEvents` — Read — https://policylayer.com/tools/xdevplatform-xmcp/getdirectmessagesevents.md
- `getDirectMessagesEventsByConversationId` — Read — https://policylayer.com/tools/xdevplatform-xmcp/getdirectmessageseventsbyconversationid.md
- `getDirectMessagesEventsById` — Read — https://policylayer.com/tools/xdevplatform-xmcp/getdirectmessageseventsbyid.md
- `getDirectMessagesEventsByParticipantId` — Read — https://policylayer.com/tools/xdevplatform-xmcp/getdirectmessageseventsbyparticipantid.md
- `getInsights28Hr` — Read — https://policylayer.com/tools/xdevplatform-xmcp/getinsights28hr.md
- …and 104 more: https://policylayer.com/tools/xdevplatform-xmcp.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=xdevplatform-xmcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/xdevplatform-xmcp