Low Risk

config_helper

This tool helps analyze and validate and fix CircleCI configuration files. Parameters: - params: An object containing: - configFile: string - The full contents of the CircleCI config file as a string. This should be the raw YAML content, not a file path. Example usage: { "par...

Part of the CircleCI MCP Server MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

AI agents call config_helper to retrieve information from CircleCI MCP Server without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

Even though config_helper only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

circleci-public-mcp-server-circleci.yaml
tools:
  config_helper:
    rules:
      - action: allow

See the full CircleCI MCP Server policy for all 16 tools.

Tool Name config_helper
Category Read
Risk Level Low

View all 16 tools →

Agents calling read-class tools like config_helper have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.

What does the config_helper tool do? +

This tool helps analyze and validate and fix CircleCI configuration files. Parameters: - params: An object containing: - configFile: string - The full contents of the CircleCI config file as a string. This should be the raw YAML content, not a file path. Example usage: { "params": { "configFile": "version: 2.1 orbs: node: circleci/node@7 ..." } } Note: The configFile content should be provided as a properly escaped string with newlines represented as . Tool output instructions: - If the config is invalid, the tool will return the errors and the original config. Use the errors to fix the config. - If the config is valid, do nothing. . It is categorised as a Read tool in the CircleCI MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on config_helper? +

Add a rule in your Intercept YAML policy under the tools section for config_helper. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the CircleCI MCP Server MCP server.

What risk level is config_helper? +

config_helper is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit config_helper? +

Yes. Add a rate_limit block to the config_helper rule in your Intercept 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 config_helper completely? +

Set action: deny in the Intercept policy for config_helper. 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 config_helper? +

config_helper is provided by the CircleCI MCP Server MCP server (CircleCI-Public/mcp-server-circleci). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Let agents act without letting them run wild.

Deterministic policy on every MCP tool call. Per-identity grants. Full audit log.

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