AI agents call onboard_all to retrieve information from Prompts without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool generates/reads an overview of installed tools and their onboarding guides. This is fundamentally a read/query operation that produces documentation output. No data is modified, deleted, or executed. Confidence is slightly reduced because the description is brief and in Chinese, leaving some ambiguity about side effects.
From the tool's definition 【全部引导】为所有已安装工具生成引导手册概览 — 'generates an onboarding manual overview for all installed tools'
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
【全部引导】为所有已安装工具生成引导手册概览。. It is categorised as a Read tool in the Prompts MCP Server, which means it retrieves data without modifying state.
Register the Prompts MCP server in PolicyLayer and add a rule for onboard_all: 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 Prompts. Nothing to install.
onboard_all 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 onboard_all 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 onboard_all. 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.
onboard_all is provided by the Prompts MCP server (thana0623/pmcp-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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