images_update
更新图片素材信息 (Update image info)
This record as markdown: /tools/andyleimc-source-tencent-ad-mcp/images-update.md
What images_update does on Tencent Ad MCP Server
AI agents use images_update to create or update resources in Tencent Ad MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Tencent Ad MCP Server environment.
Why images_update is rated Medium
This tool modifies existing image assets within the advertising system. While the change is reversible (images can be updated again or reverted), it affects active ad materials that may be in use in campaigns. The blast radius is medium: an AI misusing this could corrupt or deface ad creatives across multiple campaigns, though the damage is not permanent (images can be re-updated).
From the tool's definition Tool name is 'images_update' with description 'Update image info' (更新图片素材信息). The verb 'update' indicates modification of existing data (image materials/素材).
Attacks that exploit this kind of access
The rule that runs images_update safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Tencent Ad MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For images_update, this is the rule to start with:
images_update 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Tencent Ad MCP Server, apply this rule, and every images_update call is checked against it from then on.
Questions about images_update
更新图片素材信息 (Update image info). It is categorised as a Write tool in the Tencent Ad MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Tencent Ad MCP Server MCP server in PolicyLayer and add a rule for images_update: 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 Tencent Ad MCP Server. Nothing to install.
images_update 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 images_update 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 images_update. 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.
images_update is provided by the Tencent Ad MCP Server MCP server (andyleimc-source/tencent-ad-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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