Upload media to persistent R2 storage. Returns a durable r2_key that can be passed to schedule_post. Three input modes: (1) local file path (stdio mode only), (2) public URL fetched by the server, (3) inline base64 via file_data (remote agents, \u226410MB decoded). AGENT ROUTING GUIDE: If the med...
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AI agents use upload_media to create or modify resources in Socialneuron. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call upload_media repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Socialneuron.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"upload_media": {
"limits": [
{
"counter": "upload_media_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Socialneuron policy for all 100 tools.
These attack patterns abuse exactly the kind of access upload_media gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Upload media to persistent R2 storage. Returns a durable r2_key that can be passed to schedule_post. Three input modes: (1) local file path (stdio mode only), (2) public URL fetched by the server, (3) inline base64 via file_data (remote agents, \u226410MB decoded). AGENT ROUTING GUIDE: If the media was produced by another tool here (generate_image, generate_video, create_carousel, etc.), use the returned job_id or r2_key directly with schedule_post \u2014 do NOT download and re-upload. For user-authored files larger than ~1MB, prefer request_upload_session (returns a tokenized Dashboard URL the user uploads through in their browser) so bytes never flow through the agent context. Reserve file_data for small assets (thumbnails, logos, short clips).. It is categorised as a Write tool in the Socialneuron MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Socialneuron MCP server in PolicyLayer and add a rule for upload_media: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Socialneuron. Nothing to install.
upload_media is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the upload_media rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for upload_media. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
upload_media is provided by the Socialneuron MCP server (@socialneuron/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 100 Socialneuron tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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