isWithdrawn
Whether to only return withdrawn advisories. (boolean, optional)
This record as markdown: /tools/io-github-aifity-omnigit-mcp/iswithdrawn.md
What isWithdrawn does on GitHub
AI agents call isWithdrawn to retrieve information from GitHub without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why isWithdrawn is rated Low
This is a read-only parameter used to filter advisory data retrieval. It queries or constrains results without creating, modifying, deleting, or executing any operations. The blast radius of misuse is minimal—it can only affect which subset of data is returned, not modify or delete anything.
From the tool's definition Tool name 'isWithdrawn' is a boolean filter parameter. The description indicates it filters which advisories are returned ('only return withdrawn advisories'), making this a query filter with no side effects.
Attacks that exploit this kind of access
The rule that runs isWithdrawn 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 isWithdrawn, this is the rule to start with:
isWithdrawn is read-only, so it stays allowed. 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 isWithdrawn call is checked against it from then on.
Questions about isWithdrawn
Whether to only return withdrawn advisories. (boolean, optional). It is categorised as a Read tool in the GitHub MCP Server, which means it retrieves data without modifying state.
Register the GitHub MCP server in PolicyLayer and add a rule for isWithdrawn: 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.
isWithdrawn is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the isWithdrawn 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 isWithdrawn. 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.
isWithdrawn is provided by the GitHub MCP server (oci:ghcr.io/aifity/omnigit-mcp:0.5.0). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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