AI agents use convertTodraft to create or update resources in Bitbucket MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Bitbucket MCP environment.
This tool modifies the status/state of an existing pull request, changing it from regular to draft status. This is a reversible write operation (the PR can be converted back from draft to regular status). It does not delete data, execute arbitrary code, or move financial resources.
From the tool's definition Tool name 'convertTodraft' and description 'Convert a regular pull request to draft status' indicate modification of pull request state from regular to draft.
Documented attack patterns abuse exactly the kind of access convertTodraft gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Bitbucket MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for convertTodraft:
{
"version": "1",
"default": "deny",
"tools": {
"convertTodraft": {
"limits": [
{
"counter": "converttodraft_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}convertTodraft 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.
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Convert a regular pull request to draft status. It is categorised as a Write tool in the Bitbucket MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Bitbucket MCP server in PolicyLayer and add a rule for convertTodraft: 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 MCP. Nothing to install.
convertTodraft is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the convertTodraft 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 convertTodraft. 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.
convertTodraft is provided by the Bitbucket MCP server (matanyemini/bitbucket-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Bitbucket MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
49 Bitbucket MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.