This record as markdown: /tools/io-github-vmoranv-jshookmcp/miniapp-pkg-unpack.md
What miniapp_pkg_unpack does on Jshookmcp
AI agents invoke miniapp_pkg_unpack to trigger actions in Jshookmcp. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why miniapp_pkg_unpack is rated High
Unpacking a package executes extraction operations that modify the filesystem.
From the tool's definition Unpack a miniapp package
Attacks that exploit this kind of access
The rule that runs miniapp_pkg_unpack safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Jshookmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For miniapp_pkg_unpack, this is the rule to start with:
miniapp_pkg_unpack stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Jshookmcp, apply this rule, and every miniapp_pkg_unpack call is checked against it from then on.
Questions about miniapp_pkg_unpack
Unpack a miniapp package. It is categorised as a Execute tool in the Jshookmcp MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Jshook MCP server in PolicyLayer and add a rule for miniapp_pkg_unpack: 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 Jshookmcp. Nothing to install.
miniapp_pkg_unpack is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the miniapp_pkg_unpack 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 miniapp_pkg_unpack. 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.
miniapp_pkg_unpack is provided by the Jshook MCP server (@jshookmcp/jshook). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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