Add a new app to Bitrise. After this app should be finished on order to be registered completely on Bitrise (via the finish_bitrise_app tool). Before doing this step, try understanding the repository details from the repository URL. This is a two-step process. First, you register the app with the...
Part of the Bitrise server.
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AI agents use register_app to create or modify resources in Bitrise. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call register_app repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Bitrise.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"register_app": {
"limits": [
{
"counter": "register_app_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Bitrise policy for all 81 tools.
These attack patterns abuse exactly the kind of access register_app gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Add a new app to Bitrise. After this app should be finished on order to be registered completely on Bitrise (via the finish_bitrise_app tool). Before doing this step, try understanding the repository details from the repository URL. This is a two-step process. First, you register the app with the Bitrise API, and then you finish the setup. The first step creates a new app in Bitrise, and the second step configures it with the necessary settings. If the user has multiple workspaces, always prompt the user to choose which one you should use. Don't prompt the user for finishing the app, just do it automatically.. It is categorised as a Write tool in the Bitrise MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Bitrise MCP server in PolicyLayer and add a rule for register_app: 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 Bitrise. Nothing to install.
register_app 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 register_app 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 register_app. 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.
register_app is provided by the Bitrise MCP server (https://mcp.bitrise.io/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 81 Bitrise tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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