Get components for a specific canvas
AI agents call get_components_by_canvas to retrieve information from Devici MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries component data associated with a canvas in the Devici threat modeling system. It performs a read-only operation with no modification, deletion, or execution of external code. The narrow scope (components for a specific canvas) and passive retrieval nature warrant a 'low' severity rating.
From the tool's definition Tool name 'get_components_by_canvas' and description 'Get components for a specific canvas' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Get components for a specific canvas. It is categorised as a Read tool in the Devici MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Devici MCP Server MCP server in PolicyLayer and add a rule for get_components_by_canvas: 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 Devici MCP Server. Nothing to install.
get_components_by_canvas 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_components_by_canvas 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_components_by_canvas. 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_components_by_canvas is provided by the Devici MCP Server MCP server (sdelements/devici-mcp). 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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