moodle-plugin-development

moodle-plugin-development is a skill for Claude Code from SaadRahman01/claude-moodle-dev. It costs 92 tokens per session (3,229 once invoked), scanned A, original, MIT.

A development guide for Moodle plugins, which are extensions that add features to the Moodle learning platform. It covers the required files and conventions for databases, permissions, web services, scheduled tasks, events, settings, and translations.

In plain words
What is it for?
Use it when creating, modifying, upgrading, or reviewing Moodle plugins such as activities, themes, reports, authentication methods, or question types.
Why use it?
It helps keep plugin code compatible with Moodle's fixed folder structure and upgrade rules. It also reduces mistakes when changing stored data or user permissions.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the moodle-dev plugin — 13 skills, 8 commands, 2 agents shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/saadrahman01/claude-moodle-dev/moodle-plugin-development
Any agent
npx skills add SaadRahman01/claude-moodle-dev --skill moodle-plugin-development
Clone the repo
git clone --depth 1 https://github.com/SaadRahman01/claude-moodle-dev

Made for: Claude Code.

Or install moodle-dev, the plugin that ships this one along with the rest of its 13 skills, 8 commands, 2 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for moodle-plugin-development

README.md
[![agentmods](https://agentmods.dev/badge/skills/saadrahman01/claude-moodle-dev/moodle-plugin-development.svg)](https://agentmods.dev/skills/saadrahman01/claude-moodle-dev/moodle-plugin-development)
Your own site
<a href="https://agentmods.dev/skills/saadrahman01/claude-moodle-dev/moodle-plugin-development"><img src="https://agentmods.dev/badge/skills/saadrahman01/claude-moodle-dev/moodle-plugin-development.svg" alt="Measured on agentmods" height="20"></a>
Per session 92 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,229 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00092 $0.03229
Opus 5 $0.00046 $0.01614
Sonnet 5 $0.00018 $0.00646
Haiku 4.5 $0.00009 $0.00323

Measured 6d ago against content hash 94d71e0d2c41, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

moodle-plugin-development scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/moodle-plugin-development/SKILL.md · 276 lines

How it starts

The opening of the file, as written. The whole thing — 276 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Moodle Plugin Development

Overview

Moodle plugins follow strict frankenstyle naming and a fixed file layout. Every plugin lives under a type-specific directory (local/, mod/, blocks/, course/format/, theme/, auth/, enrol/, report/, question/type/, filter/, repository/, etc.) and is identified by <type>_<name> (e.g., local_school, mod_quiz, format_schoolgram).

Core principle: Moodle code must declare defined('MOODLE_INTERNAL') || die(); at top of every PHP file (except classes under classes/ autoloaded via PSR-4), use $DB for all DB access, use get_string() for user-facing text, and bump version.php for any DB or capability change.

When to Use

  • Creating new plugin under local/, mod/, blocks/, course/format/, theme/, etc.
  • Adding/modifying DB tables → db/install.xml + db/upgrade.php
  • Adding capabilities → db/access.php
  • Adding web services / external functions → db/services.php + classes/external/
  • Adding scheduled tasks → db/tasks.php + classes/task/
  • Adding events / observers → db/events.php + classes/event/
  • Adding admin settings page → settings.php
  • Translating strings → lang/<lang>/<component>.php
  • Reviewing PR for Moodle coding-style compliance
  • Bumping version.php after schema/capability change

Skip when: working purely on frontend AMD modules without backend changes, or non-Moodle PHP code.

Plugin Skeleton

Minimum files for a local_<name> plugin:

local/<name>/
  version.php                    # required: component, version, requires, maturity
  lang/en/local_<name>.php       # required: 'pluginname' string
  lib.php                        # optional: hooks (extend_navigation, pluginfile, etc.)
  settings.php                   # optional: admin settings page
  db/
    install.xml                  # DB schema (edit via /admin/tool/xmldb/)
    upgrade.php                  # versioned upgrade steps
    access.php                   # capabilities
    services.php                 # web service definitions
    tasks.php                    # scheduled tasks
    events.php                   # event observers
    caches.php                   # cache definitions
  classes/                       # PSR-4: \local_<name>\foo\bar -> classes/foo/bar.php
    external/                    # external (web service) functions
    task/                        # scheduled task classes
    event/                       # custom events
    privacy/provider.php         # GDPR provider (REQUIRED)
  templates/                     # Mustache templates
  amd/src/                       # ES modules (built via grunt -> amd/build/)
  tests/                         # PHPUnit + Behat

Read the full file on GitHub · 276 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 276 lines · 92 tokens per session scan A 94d71e0d2c41

Subscribe to this mod's changes

moodle-plugin-development is a skill published in the GitHub repository SaadRahman01/claude-moodle-dev (35 stars, last pushed 2mo ago), licensed MIT. It adds 92 tokens to every session and 3,229 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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