get_quiz_statistics
Read a quiz's statistics report, which tells which questions work: the quiz's figures (attempts, averages, median, standard deviation, skewness, kurtosis, internal consistency, error ratio, standard error) and per question its facility index, standard deviation, weights, discrimination index and ...
This record as markdown: /tools/falkenslab-moodle-mcp/get-quiz-statistics.md
What get_quiz_statistics does on Moodle
AI agents call get_quiz_statistics 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 |
|---|---|---|---|
quizId | integer | Yes | The quiz's id (course module id), as get_course_structure gives it |
attempts | string | — | The quiz's grading method by default |
responses | boolean | — | Also each question's analysis of responses |
recalculate | boolean | — | Calculate again now, for attempts finished since |
Parameters from the server's own tool schema.
Why get_quiz_statistics is rated Low
Even though get_quiz_statistics 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 get_quiz_statistics 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 get_quiz_statistics, this is the rule to start with:
get_quiz_statistics 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 get_quiz_statistics call is checked against it from then on.
Questions about get_quiz_statistics
Read a quiz's statistics report, which tells which questions work: the quiz's figures (attempts, averages, median, standard deviation, skewness, kurtosis, internal consistency, error ratio, standard error) and per question its facility index, standard deviation, weights, discrimination index and efficiency, dubious ones marked; a random slot's questions and variants each with their own; with responses, how often each response was given (one page read per question). Figures as the report shows them. attempts chooses which attempts count; recalculate clears what Moodle stored. Aggregates only: no person. It is categorised as a Read tool in the Moodle MCP Server, which means it retrieves data without modifying state.
get_quiz_statistics accepts 4 parameters: quizId, attempts, responses, recalculate. Required: quizId. 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 get_quiz_statistics: 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.
get_quiz_statistics 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_quiz_statistics 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_quiz_statistics. 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_quiz_statistics 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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