Update webhook config for an organization webhook
AI agents use update_organization_webhook_config to create or update resources in Mcp Github — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Github environment.
The tool updates (modifies) webhook configuration, which is a Write operation. It is reversible—changes can be undone by updating again. Severity is high because webhooks control external integrations and can be configured to call arbitrary URLs or trigger automated workflows; misconfiguration could expose sensitive data or enable unauthorized actions at scale across an organization's repositories.
From the tool's definition Tool name 'update_organization_webhook_config' and description 'Update webhook config for an organization webhook' indicate modification of existing webhook configuration. This is a reversible write operation on organization settings.
Attacks that exploit this kind of access
Update webhook config for an organization webhook. It is categorised as a Write tool in the Mcp Github MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Mcp Github MCP server in PolicyLayer and add a rule for update_organization_webhook_config: 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 Mcp Github. Nothing to install.
update_organization_webhook_config 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 update_organization_webhook_config 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 update_organization_webhook_config. 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.
update_organization_webhook_config is provided by the Mcp Github MCP server (@missionsquad/mcp-github). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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