Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add melodic-software/claude-code-plugins/plugin install educationWrote 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.
[](https://agentmods.dev/skills/melodic-software/claude-code-plugins/teach)<a href="https://agentmods.dev/skills/melodic-software/claude-code-plugins/teach"><img src="https://agentmods.dev/badge/skills/melodic-software/claude-code-plugins/teach/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.
<a href="https://agentmods.dev/skills/melodic-software/claude-code-plugins/teach"><img src="https://agentmods.dev/badge/skills/melodic-software/claude-code-plugins/teach.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00026 | $0.06021 |
| Opus 5.5 | $0.00010 | $0.02408 |
| Sonnet 5.5 | $0.00005 | $0.01204 |
| Haiku 4.5 | $0.00003 | $0.00602 |
Grade A, and why
teach 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 367 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Teach across sessions
Coach the user, not lecture, through the Knowledge-Skills-Wisdom progression, grounded in their real goals, with persistent learning state so each session builds on the last. Two modes share the pedagogy and differ in source material:
topic: general subject learning from external high-trust sources (books, courses, docs, communities).codebase: repo-grounded learning from the consuming repo's own code, docs, ADRs and conventions, discovered at teach-time (Codebase Mode).
Workspace layout
Learning state is the user's own study material. Every workspace lives at
<workspace-root>/<project-slug>/<mode>/<topic>/, with <workspace-root> from
Workspace root resolution. No root ever lands in the consuming repo
unless the project itself declares one.
<workspace-root>/<project-slug>/<mode>/<topic>/
├── MISSION.md WHY the user is learning this — goal, success criteria, constraints (workspace-global)
├── GLOSSARY.md durable terminology SSOT — add only when the user demonstrates understanding (global)
├── RESOURCES.md curated high-trust sources (knowledge + wisdom communities) (global)
├── NOTES.md teaching preferences + working notes — how the user wants to be taught (global)
├── assets/ shared lesson components — lesson.css + answer-shuffling quiz.js, spliced into HTML lessons (context/lessons.md "Assets library")
├── learning-records/ cross-cutting ZPD log — ADR-style insight records (append-only)
│ ├── 0001-<slug>.md
│ └── 0002-<slug>.md
└── concepts/ per-concept slices
└── <concept-slug>/ ONE tightly-scoped thing — things that change together, together
├── lesson.html the teaching unit — pedagogically ephemeral (rarely revisited, regenerable), yet kept in the concept slice rather than OS temp; `lesson.md` where the host can't render HTML (ONE lesson file per concept — format decision + replacement rules: context/lessons.md)
├── reference.md durable compressed cheat-sheet (revisited; the rot-relevant artifact)
└── exercise.md colocated practice (optional)
What ships with it
15 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- context/assessment.md 4.5 KB
- context/exercises.md 3.2 KB
- context/glossary.md 3.7 KB
- context/lessons.md 16 KB
- context/mission.md 3.8 KB
- context/pedagogy.md 7.3 KB
- context/resources.md 4.1 KB
- evals/evals.json 14 KB
- scripts/build-lesson.mjs 2.2 KB runs code
- scripts/build-lesson.test.sh 4.5 KB runs code
- scripts/list-workspaces.sh 8.2 KB runs code
- scripts/list-workspaces.test.sh 8.5 KB runs code
- scripts/splice-assets.awk 1.5 KB
- scripts/splice-assets.sh 7.6 KB runs code
- scripts/splice-assets.test.sh 16 KB runs code
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.
- yesterday Changed · -1 lines 0966f5db5d1c
- 5d ago Changed · +139 lines · -53 tokens per session 914a22d74454
- 7d ago Changed · +3 lines 6b25f23f0a5d
- 12d ago Changed 2ceca0357ea6
- 14d ago Changed · +1 lines d5284b1dffb5
- 17d ago Changed · +3 lines f0fed132d855
- 18d ago Changed · +10 lines 7f9447d3933f
- 20d ago Changed · +2 lines 3962ad5e5e7c
- 1mo ago Changed 435d9586ba13
- 1mo ago First seen · 210 lines · 79 tokens per session scan A 4957fecbf45d
teach is a skill published in the GitHub repository melodic-software/claude-code-plugins (26 stars, last pushed today), licensed MIT. It adds 26 tokens to every session and 6,021 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-03.
Other skills, from other repositories
solve-constraint-puzzle
For constraint satisfaction: Sudoku, scheduling, N-queens, logic puzzles, SAT-like problems, assignment problems. Uses propagate-then-search pattern.
count-combinations
For probability and counting: permutations, combinations, sample spaces, Monte Carlo simulation, brute-force enumeration, card/dice problems.
career-path-planner
Career goal mapping with skill gap analysis, actionable development plans, and milestone tracking. Use when planning career transitions, identifying skill gaps, setting professional development goals, or evaluating career options.
learning-gap-analyzer
Map understanding, identify knowledge gaps, and build targeted learning plans with spaced repetition. Use when assessing knowledge levels, designing study plans, or optimizing learning paths.
parallel-orchestrator
Manage parallel Claude Code workstreams using git worktrees. Use when: splitting large tasks across multiple workers, coordinating parallel development, monitoring worker progress, integrating completed work, analyzing work item documents (code reviews, issue lists). Triggers: parallel, orchestrator, worktrees…
parallel-worker
Execute focused implementation tasks in a parallel workflow. Use when: working on assigned files in a worktree, making checkpoint commits, signaling dependencies or blockers, completing orchestrator-assigned tasks. Triggers: worker, checkpoint, worktree, assigned scope, commit prefix, parallel task.