AI agents call get_theme_usage to retrieve information from MCP Modus without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and returns reference documentation about theme implementation. It is purely informational, read-only, with no side effects, state changes, or capability to execute code or delete data. Consistent with sibling tools like get_component_docs, get_design_rules, and get_development_rules, all of which are documentation lookups.
From the tool's definition Tool description states 'Get theme implementation guidelines and usage instructions' — a retrieval operation providing documentation and guidance without modifying, executing, or deleting any data.
Attacks that exploit this kind of access
Get theme implementation guidelines and usage instructions. It is categorised as a Read tool in the MCP Modus MCP Server, which means it retrieves data without modifying state.
Register the MCP Modus MCP server in PolicyLayer and add a rule for get_theme_usage: 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 MCP Modus. Nothing to install.
get_theme_usage is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_theme_usage 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.
Set action: deny in the PolicyLayer policy for get_theme_usage. 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.
get_theme_usage is provided by the MCP Modus MCP server (julianoczkowski/mcp-modus). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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