This record as markdown: /tools/io-github-devopam-mcpg/list-pending-migrations.md
What list_pending_migrations does on Mcpg
AI agents call list_pending_migrations to retrieve information from Mcpg without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why list_pending_migrations is rated Low
The tool retrieves pending database migrations without executing them or modifying data. This is a passive information query operation. The empty description reduces confidence slightly, but the name strongly suggests a non-destructive read operation. Severity is low as listing migrations poses minimal risk—it only exposes metadata about pending schema changes without applying them.
From the tool's definition Tool name 'list_pending_migrations' indicates a listing/querying operation typical of Read category tools. The verb 'list' retrieves information without modifying state.
Attacks that exploit this kind of access
The rule that runs list_pending_migrations safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Mcpg, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_pending_migrations, this is the rule to start with:
list_pending_migrations 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 Mcpg, apply this rule, and every list_pending_migrations call is checked against it from then on.
Questions about list_pending_migrations
list_pending_migrations is a read tool on the Mcpg MCP server. It is categorised as a Read tool in the Mcpg MCP Server, which means it retrieves data without modifying state.
Register the Mcpg MCP server in PolicyLayer and add a rule for list_pending_migrations: 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 Mcpg. Nothing to install.
list_pending_migrations 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 list_pending_migrations 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 list_pending_migrations. 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.
list_pending_migrations is provided by the Mcpg MCP server (pypi:mcpg). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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