Low Risk

categories

List all capabilities Hebline supports and which services are available for each.

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

AI agents call categories to retrieve information from Hebline Ai 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 categories 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-hebline-mcp-server.yaml
tools:
  categories:
    rules:
      - action: allow

See the full Hebline Ai policy for all 3 tools.

Tool Name categories
Category Read
Risk Level Low

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

List all capabilities Hebline supports and which services are available for each.. It is categorised as a Read tool in the Hebline Ai MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on categories? +

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

What risk level is categories? +

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

Can I rate-limit categories? +

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

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

categories is provided by the Hebline Ai MCP server (@hebline.ai/mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Hebline Ai

Open source. One binary. Zero dependencies.

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

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