github_pin_repos
Pin up to 6 repos to your GitHub profile. Uses the GraphQL API.
This record as markdown: /tools/dkeeno-github-mcp-server/github-pin-repos.md
What github_pin_repos does on Github
AI agents use github_pin_repos 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 github_pin_repos is rated Medium
This tool modifies GitHub profile settings by pinning repositories, which is a reversible write operation. It does not execute code, delete data, move funds, or cause destructive changes. The blast radius is minimal—misuse would only affect the profile's visible repository pins, which can be easily unpinned. Severity is low because the impact is cosmetic and non-critical.
From the tool's definition Tool description states it 'Pin up to 6 repos to your GitHub profile' and 'Uses the GraphQL API.' Pinning repositories is a profile customization feature that modifies user profile metadata.
Attacks that exploit this kind of access
The rule that runs github_pin_repos 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 github_pin_repos, this is the rule to start with:
github_pin_repos 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 github_pin_repos call is checked against it from then on.
Questions about github_pin_repos
Pin up to 6 repos to your GitHub profile. Uses the GraphQL API. 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 github_pin_repos: 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.
github_pin_repos 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 github_pin_repos 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 github_pin_repos. 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.
github_pin_repos is provided by the Github MCP server (dkeeno/github-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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