# list_courses

List available courses from Canvas.

Agent View of the PolicyLayer registry record for `list_courses`. HTML page: https://policylayer.com/tools/54yyyu-school-mcp/list-courses

## Facts

- Tool: `list_courses`
- Server: School MCP (`54yyyu/school-mcp`) — https://policylayer.com/tools/54yyyu-school-mcp.md
- Homepage: https://github.com/54yyyu/school-mcp
- Risk category: Read (Low risk)
- Registry record: grade B, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "list_courses",
    "arguments": {}
  }
}
```

## Why list_courses is rated Low

This tool retrieves a list of courses from Canvas, a read-only operation with no data modification, execution of code, deletion, or financial implications. The blast radius is minimal—an AI agent could at worst enumerate courses already accessible to the authenticated user. Severity is low because the information returned is likely limited to courses the user is already enrolled in or has access to.

From the tool's own definition: "Tool name 'list_courses' and description 'List available courses from Canvas' indicate a query operation that retrieves course data without modification or side effects."

## Use case

AI agents call list_courses to retrieve information from School MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches School MCP:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_courses": {}
  }
}
```

## Other tools on School MCP (8)

- `download_course_files` — Read — https://policylayer.com/tools/54yyyu-school-mcp/download-course-files.md
- `get_deadlines` — Read — https://policylayer.com/tools/54yyyu-school-mcp/get-deadlines.md
- `get_download_path_info` — Read — https://policylayer.com/tools/54yyyu-school-mcp/get-download-path-info.md
- `list_course_files` — Read — https://policylayer.com/tools/54yyyu-school-mcp/list-course-files.md
- `list_school_accounts` — Read — https://policylayer.com/tools/54yyyu-school-mcp/list-school-accounts.md
- `add_to_reminders` — Write — https://policylayer.com/tools/54yyyu-school-mcp/add-to-reminders.md
- `set_download_path` — Write — https://policylayer.com/tools/54yyyu-school-mcp/set-download-path.md
- `switch_school_account` — Write — https://policylayer.com/tools/54yyyu-school-mcp/switch-school-account.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=54yyyu-school-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/54yyyu-school-mcp