course-builder

course-builder is a skill for Claude Code, Codex from duc01226/EasyPlatform. It costs 30 tokens per session (1,998 once invoked), scanned A, a copy of template-skill, MIT.

A Codex compatibility guide for loading project documentation and repository skills from static files.

In plain words
What is it for?
Use it when coding, planning, debugging, testing, reviewing, or running an explicitly invoked skill in a repository.
Why use it?
It clarifies how Codex should find project instructions and handle workflows written for another coding assistant.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents; installed under .agents/ (shared by several agents); mentions Codex.

Good fit Use it when coding, planning, debugging, testing, reviewing, or running an explicitly invoked skill in a repository.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/duc01226/easyplatform/course-builder
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.

Any agent
npx skills add duc01226/EasyPlatform --skill course-builder
Clone the repo
git clone --depth 1 https://github.com/duc01226/EasyPlatform

Made for: Claude Code, Codex.

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 course-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/duc01226/easyplatform/course-builder/github.svg)](https://agentmods.dev/skills/duc01226/easyplatform/course-builder)
Your own site
<a href="https://agentmods.dev/skills/duc01226/easyplatform/course-builder"><img src="https://agentmods.dev/badge/skills/duc01226/easyplatform/course-builder/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for course-builder

Your own site · 80×15
<a href="https://agentmods.dev/skills/duc01226/easyplatform/course-builder"><img src="https://agentmods.dev/badge/skills/duc01226/easyplatform/course-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,998 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 83% copy Near-identical to another mod 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 $0.00030 $0.01998
Opus 5.5 $0.00012 $0.00799
Sonnet 5.5 $0.00006 $0.00400
Haiku 4.5 $0.00003 $0.00200

Measured 3d ago against content hash a23dc06d01c5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

course-builder 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 3d 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.

Origin

This is a copy

83% identical to template-skill — 116 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/course-builder/SKILL.md · 127 lines

How it starts

The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Codex compatibility note:

  • Invoke $skill-name: load the registered .agents/skills/<name>/SKILL.md and execute it with Codex tools; no separate Skill tool or Claude mode switch is needed. Author .claude/**; mirrors are generated.
  • Track steps before execution and keep progress/evidence current. Explicit skill requests execute their protocol. Use the native question tool for required questions.
  • Map foreign tool names to available host capabilities. A name mismatch needs no approval; an actually unavailable required capability stops with its step/evidence and a user question before adaptation.
  • Subagent authorization: when a skill is user-invoked or AI-detected and its protocol requires subagents, that skill activation authorizes use of the required spawn_agent subagent(s) for that task.
  • Preserve protocol order unless the user approves a deviation. Workflows use $start-workflow: gates stay fixed; other steps may flex with logged reasons and evidence.

Quick Summary

Goal: Build a learner-ready course with Bloom-aligned objectives, progressive modules, lessons, practice, and assessments so learners achieve and demonstrate intended outcomes.

Summary:

  • Purpose: Turn user/research scope into a template-compliant course with aligned outcomes, practice, and assessments.
  • Main flow: Phase 0 detect course context; (1) define audience, prerequisites, duration, outcomes; (2) map objectives to Bloom; (3) structure modules → lessons → exercises → assessments.
  • Continue: (4) develop each lesson's duration, concept, explanation, examples, exercise, assessment; (5) create module knowledge checks + comprehensive final; (6) review alignment, evidence, progression, prerequisites.
  • Gates/output: Create todo tracking tasks before work; map every objective to Bloom; cite every factual claim inline [N]; use the enforced template; write docs/knowledge/courses/{descriptive-slug}.md; no modes/flags specified.

Workflow:

  1. Define scope — Target audience, prerequisites, duration, objectives
  2. Map objectives — Align to Bloom's taxonomy
  3. Structure curriculum — Modules → Lessons → Exercises → Assessments
  4. Develop content — Per lesson: concept, explanation, examples, exercise
  5. Create assessments — Knowledge checks + final assessment
  6. Review pedagogy — Alignment, progressive difficulty, prerequisite chains

Key Rules:

  • Every objective maps to a Bloom's taxonomy level; include at least one Apply-level objective.
  • Build progressive complexity; each module builds on previous prerequisites.
  • Derive lesson depth, examples, exercises, and assessment format from learner context and objectives; do not fill templates mechanically.
  • Use enforced template .claude/templates/course-outline-template.md.
  • Every factual claim and number in the content ends with an inline [N] citation mapped to a Resources & References row (Title, URL, Author/Org, Date, Tier). Factual claims rest on 2+ independent sources; a single-source claim is marked unverified and held below 60% confidence. Exercises, assessment items and constructed examples are course design, not factual claims.

Critical thinking: Be skeptical; reason sequentially; trace evidence for every claim; state confidence percentages; ideas >80%.

Read the full file on GitHub · 127 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. 3d ago Changed · -175 lines · -3 tokens per session a23dc06d01c5
  2. 1mo ago First seen · 302 lines · 33 tokens per session scan A e10bcd49b855

Subscribe to this mod's changes

course-builder is a skill published in the GitHub repository duc01226/EasyPlatform (12 stars, last pushed yesterday), licensed MIT. It adds 30 tokens to every session and 1,998 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 83% identical to template-skill, differing in 116 lines, and is treated as a copy.

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