Get pull request diff
AI agents call get_diff to retrieve information from Bitbucket Server MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays the differences between code versions in a pull request. It queries existing data (the diff) without creating, modifying, deleting, or executing any code. No side effects are produced beyond data retrieval. This is a safe, informational operation typical of code review workflows.
From the tool's definition Tool name 'get_diff' and description 'Get pull request diff' indicate retrieval of differential data without modification. The verb 'Get' is a read operation with no side effects.
Attacks that exploit this kind of access
Get pull request diff. It is categorised as a Read tool in the Bitbucket Server MCP MCP Server, which means it retrieves data without modifying state.
Register the Bitbucket Server MCP server in PolicyLayer and add a rule for get_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 Bitbucket Server MCP. Nothing to install.
get_diff 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 get_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.
Set action: deny in the PolicyLayer policy for get_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.
get_diff is provided by the Bitbucket Server MCP server (maniksi/bitbucket-server-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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