Evaluate and rank multiple publisher domains for advertiser media selection. Scores each publisher (0-100) based on ad quality metrics, supply chain health, and identity coverage. Supports campaign goal weighting (branding vs performance), bilingual output (en/ja), and device-specific scoring (mo...
AI agents call evaluate_media to retrieve information from OpenSincera MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries publisher metadata and performs scoring/ranking operations, which are read-only analytical functions that retrieve and process data without side effects. While it informs advertiser decisions, it does not execute commands, modify data, delete records, or move money. The worst-case misuse (ranking publishers incorrectly) has minimal blast radius and causes no irreversible harm.
From the tool's definition The tool description indicates it 'Evaluate[s] and rank[s] multiple publisher domains' and 'Scores each publisher' based on metrics. No modification, deletion, code execution, or financial transaction is described.
Attacks that exploit this kind of access
Evaluate and rank multiple publisher domains for advertiser media selection. Scores each publisher (0-100) based on ad quality metrics, supply chain health, and identity coverage. Supports campaign goal weighting (branding vs performance), bilingual output (en/ja), and device-specific scoring (mobile/desktop). It is categorised as a Read tool in the OpenSincera MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OpenSincera MCP Server MCP server in PolicyLayer and add a rule for evaluate_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 OpenSincera MCP Server. Nothing to install.
evaluate_media is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the evaluate_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 evaluate_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.
evaluate_media is provided by the OpenSincera MCP Server MCP server (miyaichi/opensincera-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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