list_pulls
Lista PRs (sin diff) — state: open/closed/all.
This record as markdown: /tools/4bis-relay-showcase/list-pulls.md
What list_pulls does on 4bis Relay Showcase
AI agents call list_pulls to retrieve information from 4bis Relay Showcase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why list_pulls is rated Low
Lists pull requests without modifying data; pure information retrieval with no side effects.
From the tool's definition Lista PRs (sin diff) — retrieves pull requests without detailed diffs
Attacks that exploit this kind of access
The rule that runs list_pulls safely
PolicyLayer is an MCP gateway: it sits between your AI agents and 4bis Relay Showcase, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_pulls, this is the rule to start with:
list_pulls 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 4bis Relay Showcase, apply this rule, and every list_pulls call is checked against it from then on.
Questions about list_pulls
Lista PRs (sin diff) — state: open/closed/all. It is categorised as a Read tool in the 4bis Relay Showcase MCP Server, which means it retrieves data without modifying state.
Register the 4bis Relay Showcase MCP server in PolicyLayer and add a rule for list_pulls: 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 4bis Relay Showcase. Nothing to install.
list_pulls 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_pulls 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_pulls. 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_pulls is provided by the 4bis Relay Showcase MCP server (FourBis/4bis.relay-showcase). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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