AI agents use bitbucket_add_pr_comment to create or update resources in Sage MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Sage MCP environment.
This tool creates new data (a comment) in a reversible manner. Comments can be edited or deleted afterward, making this a Write operation rather than Read (which would only retrieve data) or Destructive (which cannot be undone).
From the tool's definition Tool name 'bitbucket_add_pr_comment' and description 'Add a comment to a pull request' indicate creation of new content (a comment) on an existing pull request.
Documented attack patterns abuse exactly the kind of access bitbucket_add_pr_comment gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Sage MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for bitbucket_add_pr_comment:
{
"version": "1",
"default": "deny",
"tools": {
"bitbucket_add_pr_comment": {
"limits": [
{
"counter": "bitbucket_add_pr_comment_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}bitbucket_add_pr_comment 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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Add a comment to a pull request. It is categorised as a Write tool in the Sage MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Sage MCP server in PolicyLayer and add a rule for bitbucket_add_pr_comment: 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 Sage MCP. Nothing to install.
bitbucket_add_pr_comment 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 bitbucket_add_pr_comment 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 bitbucket_add_pr_comment. 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.
bitbucket_add_pr_comment is provided by the Sage MCP server (sagemcp/sagemcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 359 Sage MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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359 Sage MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.