bitbucket_get_pull_request_diff

THE RISK

Low Risk

Why bitbucket_get_pull_request_diff needs a policy

The tool retrieves and queries the diff (changed lines) of a pull request, which is a read-only operation. It does not modify, delete, execute, or commit any code. Getting a diff is informational only and poses minimal security risk even if misused by an AI agent - the worst case being unauthorized information disclosure of code changes that an agent already has access to view.

From the tool's definition Tool name is 'bitbucket_get_pull_request_diff' and description states it 'Gets the diff for a Bitbucket pull request' - this is a retrieval operation with no side effects.

Documented attack patterns abuse exactly the kind of access bitbucket_get_pull_request_diff gives an agent:

POLICY

How to control bitbucket_get_pull_request_diff

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Bitbucket, and nothing reaches the server without passing your rules. This is the rule we recommend for bitbucket_get_pull_request_diff:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "bitbucket_get_pull_request_diff": {}
  }
}

bitbucket_get_pull_request_diff is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Mcp Bitbucket — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More Mcp Bitbucket tools

Write bitbucket_decline_pull_request Declines a Bitbucket pull request Write bitbucket_add_pull_request_comment Adds a general comment to a Bitbucket pull request Write bitbucket_add_pull_request_file_line_comment Adds a comment to a Bitbucket pull request, optionally as an inline comment on a specific Write bitbucket_approve_pull_request Approves a Bitbucket pull request Write bitbucket_create_branch Creates a new branch in a Bitbucket repository. Write bitbucket_create_pull_request Creates a new Bitbucket pull request Write bitbucket_merge_pull_request Merges a Bitbucket pull request Read bitbucket_browse_directory Browses a directory in a Bitbucket repository.

All 18 Mcp Bitbucket tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about bitbucket_get_pull_request_diff

What does the bitbucket_get_pull_request_diff tool do? +

Gets the diff for a Bitbucket pull request. It is categorised as a Read tool in the Mcp Bitbucket MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on bitbucket_get_pull_request_diff? +

Register the Mcp Bitbucket MCP server in PolicyLayer and add a rule for bitbucket_get_pull_request_diff: 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 Bitbucket. Nothing to install.

What risk level is bitbucket_get_pull_request_diff? +

bitbucket_get_pull_request_diff is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit bitbucket_get_pull_request_diff? +

Yes. Add a rate_limit block to the bitbucket_get_pull_request_diff 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 bitbucket_get_pull_request_diff completely? +

Set action: deny in the PolicyLayer policy for bitbucket_get_pull_request_diff. 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 bitbucket_get_pull_request_diff? +

bitbucket_get_pull_request_diff is provided by the Mcp Bitbucket MCP server (n11techhub/mcp-bitbucket). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Bitbucket tool call.

Start from Mcp Bitbucket, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →