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 yarikleto/claude-teacher-plugin/plugin install claude-teacherWrote 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/yarikleto/claude-teacher-plugin/summary)<a href="https://agentmods.dev/skills/yarikleto/claude-teacher-plugin/summary"><img src="https://agentmods.dev/badge/skills/yarikleto/claude-teacher-plugin/summary/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/yarikleto/claude-teacher-plugin/summary"><img src="https://agentmods.dev/badge/skills/yarikleto/claude-teacher-plugin/summary.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 | $0.00036 | $0.01120 |
| Opus 5 | $0.00018 | $0.00560 |
| Sonnet 5 | $0.00007 | $0.00224 |
| Haiku 4.5 | $0.00004 | $0.00112 |
Grade A, and why
summary 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 — 132 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Before accessing education data, read ${CLAUDE_PLUGIN_ROOT}/references/education-data.md. Resolve every <education-db> below using that contract. Current session ID: ${CLAUDE_SESSION_ID}.
Session Summary
Generates an end-of-session recap and persists all progress to the global education DB.
Invocation
/claude-teacher:summary — run at the end of a learning session
Process
- Review the current conversation — what topics were discussed, quizzed, challenged?
- Read
<education-db>/dashboard.jsonfor current state - Read relevant
<education-db>/topics/*.jsonfor topics covered this session - Read
<education-db>/student.jsonfor goals - Generate the summary
- Update ALL DB files with session results
- Update project-local
memory/knowledge_gaps.mdif it exists
Summary Format
══════════════════════════════════════════════════
SESSION SUMMARY — [date]
══════════════════════════════════════════════════
Duration: [from recorded timestamps, or omit if unknown]
Project: [current directory]
LEARNED TODAY
─────────────
✓ [topic 1] — [one-line what was covered]
✓ [topic 2] — [one-line what was covered]
~ [topic 3] — [started but not finished]
QUIZ RESULTS
─────────────
· [topic]: 8/10 (80%) — promoted to solid!
· [topic]: 5/10 (50%) — stays at learned, review scheduled
DEPTH CHANGES
─────────────
↑ [topic]: surface → working (used correctly in challenge)
↑ [topic]: working → deep (explained reasoning correctly)
MISCONCEPTIONS
─────────────
⚠ [topic]: "[what they said wrong]" — [addressed/still open]
✓ [topic]: "[old misconception]" — resolved this session!
KNOWLEDGE CHANGES
─────────────
↑ [topic] moved from Weak → Learned
↑ [topic] moved from Learned → Solid
↓ [topic] — struggled, stays in Weak
GOAL PROGRESS
─────────────
· Pass OS exam (2026-06-15): 5/10 topics solid (+2 today)
SPACED REPETITION SCHEDULE
─────────────
Tomorrow: [topic] (review due)
In 2 days: [topic]
In 4 days: [topic]
NEXT SESSION
─────────────
Start with:
1. Review: [topics due for spaced repetition]
2. Resolve: [unresolved misconception to address]
3. Continue: [where we left off]
4. Next new topic: [what comes next]
══════════════════════════════════════════════════
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 · +2 lines eccf2c765eb7
- 9d ago First seen · 130 lines · 36 tokens per session scan A e0dc9d9cff73
summary is a skill published in the GitHub repository yarikleto/claude-teacher-plugin (8 stars, last pushed 2d ago), licensed MIT. It adds 36 tokens to every session and 1,120 once invoked, about $0.0002 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 2026-08-31.
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