stackchan_voice_inbox
AI agents call stackchan_voice_inbox to retrieve information from Stackchan without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name implies accessing voice-related data stored in an inbox, which is consistent with Read operations (retrieve, query, list). Without a description, confidence is moderate. The tool does not appear to execute code, modify data destructively, move money, or trigger external operations—it appears to be a data access mechanism for the robot's voice system.
From the tool's definition Tool name 'stackchan_voice_inbox' suggests retrieving or checking voice messages/data from an inbox. The description is empty, limiting certainty, but the naming pattern 'inbox' typically implies querying or listing stored items rather than modifying them.
Documented attack patterns abuse exactly the kind of access stackchan_voice_inbox gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Stackchan, and nothing reaches the server without passing your rules. This is the rule we recommend for stackchan_voice_inbox:
{
"version": "1",
"default": "deny",
"tools": {
"stackchan_voice_inbox": {}
}
}stackchan_voice_inbox is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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stackchan_voice_inbox. It is categorised as a Read tool in the Stackchan MCP Server, which means it retrieves data without modifying state.
Register the Stackchan MCP server in PolicyLayer and add a rule for stackchan_voice_inbox: 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 Stackchan. Nothing to install.
stackchan_voice_inbox 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 stackchan_voice_inbox 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 stackchan_voice_inbox. 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.
stackchan_voice_inbox is provided by the Stackchan MCP server (migratorywhale/stackchan-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Stackchan, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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12 Stackchan tools catalogued and risk-classified — across an index of 43,000+ MCP servers.