Obtiene los archivos disponibles en una materia. Requiere course_id.
AI agents call files to retrieve information from Canvas 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/queries file listings from a Canvas course without any side effects. It is a straightforward data retrieval operation consistent with the Read category. The severity is low because exposure of this tool would allow an AI to list files in courses, which is informational only and carries minimal risk of harm.
From the tool's definition Tool description states 'Obtiene los archivos disponibles en una materia' (Gets the files available in a course). The verb 'obtiene' (gets/retrieves) and the nature of listing course files are read-only operations.
Attacks that exploit this kind of access
Obtiene los archivos disponibles en una materia. Requiere course_id. It is categorised as a Read tool in the Canvas MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Canvas MCP Server MCP server in PolicyLayer and add a rule for files: 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 Canvas MCP Server. Nothing to install.
files 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 files 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 files. 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.
files is provided by the Canvas MCP Server MCP server (the-greenpanter/canvas-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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