Low Risk

show_defaults

Show all 23 scoring signals with their default weights and descriptions. This is the baseline scoring that applies when no custom profile is specified. Use this to understand what each signal means and how much it contributes to the score before creating custom profiles. Profiles are sparse over...

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

AI agents call show_defaults to retrieve information from Unphurl 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 show_defaults 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.

unphurl.yaml
tools:
  show_defaults:
    rules:
      - action: allow

See the full Unphurl policy for all 13 tools.

Tool Name show_defaults
Category Read
MCP Server Unphurl MCP Server
Risk Level Low

View all 13 tools →

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

Show all 23 scoring signals with their default weights and descriptions. This is the baseline scoring that applies when no custom profile is specified. Use this to understand what each signal means and how much it contributes to the score before creating custom profiles. Profiles are sparse overrides on top of these defaults. This tool does not require an API key. The defaults are hardcoded and always available.. It is categorised as a Read tool in the Unphurl MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on show_defaults? +

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

What risk level is show_defaults? +

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

Can I rate-limit show_defaults? +

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

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

show_defaults is provided by the Unphurl MCP server (@unphurl/mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Unphurl

Open source. One binary. Zero dependencies.

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

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