bb_update_pull_request · Bitbucket Cloud MCP Server MCP

WHAT IT DOES

What bb_update_pull_request does on Bitbucket Cloud MCP Server

AI agents use bb_update_pull_request to create or update resources in Bitbucket Cloud MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Bitbucket Cloud MCP Server environment.

WHY IT NEEDS A POLICY

Why bb_update_pull_request needs a policy

This tool modifies pull request state (title, description, reviewers, target branch, etc.) but does not delete or destroy data. Updates are reversible through subsequent updates or reversion. The severity is high because modifying pull requests can affect code review workflows, CI/CD pipelines, and team collaboration, but the impact is recoverable.

From the tool's definition Tool name 'bb_update_pull_request' and description 'Update a pull request' indicate modification of existing pull request data. The verb 'update' is a reversible write operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

bb_update_pull_request Rate-limited

bb_update_pull_request stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "bb_update_pull_request": {
      "limits": [
        {
          "counter": "bb_update_pull_request_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Bitbucket Cloud MCP Server, so you can run agents against it safely.

FAQ

Questions about bb_update_pull_request

What does the bb_update_pull_request tool do? +

Update a pull request. It is categorised as a Write tool in the Bitbucket Cloud MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on bb_update_pull_request? +

Register the Bitbucket Cloud MCP Server MCP server in PolicyLayer and add a rule for bb_update_pull_request: 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 Bitbucket Cloud MCP Server. Nothing to install.

What risk level is bb_update_pull_request? +

bb_update_pull_request is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit bb_update_pull_request? +

Yes. Add a rate_limit block to the bb_update_pull_request 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.

How do I block bb_update_pull_request completely? +

Set action: deny in the PolicyLayer policy for bb_update_pull_request. 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.

What MCP server provides bb_update_pull_request? +

bb_update_pull_request is provided by the Bitbucket Cloud MCP Server MCP server (or2ooo/bitbucket-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.