Update a field value for an item in a GitHub project V2 using GraphQL API
AI agents use update_project_v2_item_field to create or update resources in GitHub MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your GitHub MCP Server environment.
The tool modifies project metadata (field values) but does not delete data or execute arbitrary code. Updates to project fields are reversible through subsequent updates. While this could affect project visibility and organization if misused by an agent, the blast radius is limited to project management metadata rather than code, repositories, or destructive operations.
From the tool's definition Tool description states 'Update a field value for an item in a GitHub project V2', and the name 'update_project_v2_item_field' explicitly indicates modification of project metadata. This is a reversible change to project tracking data.
Attacks that exploit this kind of access
Update a field value for an item in a GitHub project V2 using GraphQL API. It is categorised as a Write tool in the GitHub MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the GitHub MCP Server MCP server in PolicyLayer and add a rule for update_project_v2_item_field: 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 MCP Server. Nothing to install.
update_project_v2_item_field 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_project_v2_item_field 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_project_v2_item_field. 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_project_v2_item_field is provided by the GitHub MCP Server MCP server (tuanle96/mcp-github). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
update_project_v2_item_field is one line of GitHub MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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