Low Risk

mcdev_explain_config_key

Explain a `.mcdevrc.json` concept (markets, marketList, createDeltaPkg, deployment, validations, etc.) with a short summary and wiki file hints.

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

AI agents call mcdev_explain_config_key to retrieve information from Mcdev 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 mcdev_explain_config_key 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.

io-github-joernberkefeld-mcp-server-mcdev.yaml
tools:
  mcdev_explain_config_key:
    rules:
      - action: allow

See the full Mcdev policy for all 5 tools.

Tool Name mcdev_explain_config_key
Category Read
MCP Server Mcdev MCP Server
Risk Level Low

Agents calling read-class tools like mcdev_explain_config_key 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 mcdev_explain_config_key tool do? +

Explain a `.mcdevrc.json` concept (markets, marketList, createDeltaPkg, deployment, validations, etc.) with a short summary and wiki file hints.. It is categorised as a Read tool in the Mcdev MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on mcdev_explain_config_key? +

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

What risk level is mcdev_explain_config_key? +

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

Can I rate-limit mcdev_explain_config_key? +

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

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

mcdev_explain_config_key is provided by the Mcdev MCP server (mcp-server-mcdev). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Mcdev

Open source. One binary. Zero dependencies.

npx -y @policylayer/intercept
github.com/policylayer/intercept →
// GET IN TOUCH

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