rollup
Runs Rollup bundler and returns structured bundle output with errors and warnings.
This record as markdown: /tools/io-github-dave-london-github/rollup.md
What rollup does on Github
AI agents invoke rollup to trigger actions in Github. 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 rollup is rated High
This tool executes the Rollup JavaScript bundler as an external process. It falls under Execute because it runs an external tool whose effects depend on the arguments/configuration provided. The blast radius is medium — it could be used to run arbitrary build scripts or bundle malicious code, but it doesn't directly delete data or move money.
From the tool's definition 'Runs Rollup bundler' — explicitly executes an external build tool (Rollup) and returns its output including errors and warnings
Attacks that exploit this kind of access
The rule that runs rollup safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Github, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For rollup, this is the rule to start with:
rollup 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 Github, apply this rule, and every rollup call is checked against it from then on.
Questions about rollup
Runs Rollup bundler and returns structured bundle output with errors and warnings. It is categorised as a Execute tool in the Github MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Github MCP server in PolicyLayer and add a rule for rollup: 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 Github. Nothing to install.
rollup 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 rollup 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 rollup. 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.
rollup is provided by the Github MCP server (@paretools/github). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on Github, and thousands of servers like it.
Across the catalogue