list_discussions
List the discussions of a Moodle forum: subject, who started it and when, the last post's author and time, the number of replies (0: unanswered) and whether it's locked. A page at a time: limit discussions (30 by default) after skipping offset; more says whether there are others. Takes the forum ...
This record as markdown: /tools/falkenslab-moodle-mcp/list-discussions.md
What list_discussions does on Moodle
AI agents call list_discussions to retrieve information from Moodle without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
limit | integer | — | How many discussions (30 by default, up to 100) |
offset | integer | — | How many discussions to skip first, in the forum's order (0 by default) |
forumId | integer | Yes | The forum's id (its course module id), as get_course_structure gives it |
Parameters from the server's own tool schema.
Why list_discussions is rated Low
Even though list_discussions only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs list_discussions safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Moodle, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_discussions, this is the rule to start with:
list_discussions is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Moodle, apply this rule, and every list_discussions call is checked against it from then on.
Questions about list_discussions
List the discussions of a Moodle forum: subject, who started it and when, the last post's author and time, the number of replies (0: unanswered) and whether it's locked. A page at a time: limit discussions (30 by default) after skipping offset; more says whether there are others. Takes the forum id from get_course_structure; read one with get_discussion. It is categorised as a Read tool in the Moodle MCP Server, which means it retrieves data without modifying state.
list_discussions accepts 3 parameters: limit, offset, forumId. Required: forumId. The full parameter table on this page comes from the server's own tool schema.
Register the Moodle MCP server in PolicyLayer and add a rule for list_discussions: 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 Moodle. Nothing to install.
list_discussions 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 list_discussions 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 list_discussions. 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.
list_discussions is provided by the Moodle MCP server (@falkenslab/moodle-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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