pr-create
Creates a new pull request. Returns structured data with PR number and URL.
This record as markdown: /tools/io-github-dave-london-github/pr-create.md
What pr-create does on Github
AI agents use pr-create to create or update resources in Github, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Github environment.
Why pr-create is rated Medium
This tool creates new pull requests in a GitHub repository. While PRs are reversible (they can be closed), creating a PR can trigger automated workflows, CI/CD pipelines, notifications, and code review processes that have side effects beyond simple data creation.
From the tool's definition Tool name 'pr-create' and description 'Creates a new pull request' indicate the tool creates new data in a version control system. The tool modifies repository state by introducing a new PR, which is a reversible write operation.
Attacks that exploit this kind of access
The rule that runs pr-create 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 pr-create, this is the rule to start with:
pr-create stays usable, but capped: an agent stuck in a loop can't make hundreds of changes 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 pr-create call is checked against it from then on.
Questions about pr-create
Creates a new pull request. Returns structured data with PR number and URL. It is categorised as a Write tool in the Github MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Github MCP server in PolicyLayer and add a rule for pr-create: 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.
pr-create is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the pr-create 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 pr-create. 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.
pr-create 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.
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