webpack
Runs webpack build with JSON stats output and returns structured assets, errors, and warnings.
This record as markdown: /tools/io-github-dave-london-cargo/webpack.md
What webpack does on Cargo
AI agents invoke webpack to trigger actions in Cargo. 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 webpack is rated High
Webpack is a code bundler that executes build pipelines. Running webpack invokes arbitrary JavaScript build configurations, loaders, and plugins whose effects depend on the project configuration and code being built.
From the tool's definition Tool "runs webpack build" — executes external build process with potentially arbitrary code execution. Webpack can execute custom loaders, plugins, and build scripts that may have side effects or security implications.
Attacks that exploit this kind of access
The rule that runs webpack safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Cargo, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For webpack, this is the rule to start with:
webpack 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 Cargo, apply this rule, and every webpack call is checked against it from then on.
Questions about webpack
Runs webpack build with JSON stats output and returns structured assets, errors, and warnings. It is categorised as a Execute tool in the Cargo MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Cargo MCP server in PolicyLayer and add a rule for webpack: 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 Cargo. Nothing to install.
webpack 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 webpack 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 webpack. 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.
webpack is provided by the Cargo MCP server (Dave-London/Pare). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on Cargo, and thousands of servers like it.
Across the catalogue