bazel_scaffold

Generate a new Bazel iOS or macOS project from a template. Creates MODULE.bazel, BUILD files, Swift sources, and config.

SERVERXcodeBazelMCP SOURCExcodebazelmcp/xcodebazelmcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/xcodebazelmcp-xcodebazelmcp/bazel-scaffold.md

WHAT IT DOES

What bazel_scaffold does on XcodeBazelMCP

AI agents use bazel_scaffold to create or update resources in XcodeBazelMCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your XcodeBazelMCP environment.

RISK

Why bazel_scaffold is rated Medium

This tool creates new files and project scaffolding (MODULE.bazel, BUILD files, Swift sources, config). It is a Write operation as it generates new content on disk. While it creates multiple files, this is reversible by deleting the generated project directory. Severity is medium due to the potential to overwrite existing files if run in an existing project directory.

From the tool's definition Generate a new Bazel iOS or macOS project from a template. Creates MODULE.bazel, BUILD files, Swift sources, and config.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs bazel_scaffold safely

PolicyLayer is an MCP gateway: it sits between your AI agents and XcodeBazelMCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For bazel_scaffold, this is the rule to start with:

bazel_scaffold Rate-limited

bazel_scaffold 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "bazel_scaffold": {
      "limits": [
        {
          "counter": "bazel_scaffold_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect XcodeBazelMCP, apply this rule, and every bazel_scaffold call is checked against it from then on.

FAQ

Questions about bazel_scaffold

What does the bazel_scaffold tool do? +

Generate a new Bazel iOS or macOS project from a template. Creates MODULE.bazel, BUILD files, Swift sources, and config. It is categorised as a Write tool in the XcodeBazelMCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on bazel_scaffold? +

Register the XcodeBazel MCP server in PolicyLayer and add a rule for bazel_scaffold: 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 XcodeBazelMCP. Nothing to install.

What risk level is bazel_scaffold? +

bazel_scaffold is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit bazel_scaffold? +

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

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

bazel_scaffold is provided by the XcodeBazel MCP server (xcodebazelmcp/xcodebazelmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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