Download an image from the given URL and save it to the specified path.
AI agents use DownloadImage to create or update resources in OfficeMCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your OfficeMCP environment.
This tool fetches an image from a remote URL and writes it to the local filesystem. It creates/overwrites a file on disk, which is a Write operation. It could be misused to download malicious content or overwrite existing files, but standard deletion/destruction is not implied. Severity is medium due to potential for writing arbitrary content to the filesystem from untrusted URLs.
From the tool's definition Download an image from the given URL and save it to the specified path.
Documented attack patterns abuse exactly the kind of access DownloadImage gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OfficeMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for DownloadImage:
{
"version": "1",
"default": "deny",
"tools": {
"DownloadImage": {
"limits": [
{
"counter": "downloadimage_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}DownloadImage stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Download an image from the given URL and save it to the specified path. It is categorised as a Write tool in the OfficeMCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Office MCP server in PolicyLayer and add a rule for DownloadImage: 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 OfficeMCP. Nothing to install.
DownloadImage 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 DownloadImage 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 DownloadImage. 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.
DownloadImage is provided by the Office MCP server (officemcp/officemcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 16 OfficeMCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
16 OfficeMCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.