APG dataset metadata: source commit, when generated, and link to the patterns index.
AI agents call apg_meta to retrieve information from Accessibility without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves static metadata about the APG dataset without modifying data, executing code, or triggering external operations. It is a straightforward read operation with minimal security impact.
From the tool's definition Tool name 'apg_meta' and description indicate retrieval of dataset metadata including 'source commit, when generated, and link to the patterns index'—purely informational queries with no mutation or side effects.
Attacks that exploit this kind of access
APG dataset metadata: source commit, when generated, and link to the patterns index. It is categorised as a Read tool in the Accessibility MCP Server, which means it retrieves data without modifying state.
Register the Accessibility MCP server in PolicyLayer and add a rule for apg_meta: 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 Accessibility. Nothing to install.
apg_meta 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 apg_meta 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 apg_meta. 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.
apg_meta is provided by the Accessibility MCP server (nicolasgalvez/accessibility-mcp). 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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