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.
npx skills add wonsukchoi/domain-experts --skill adult-esl-instructorgit clone --depth 1 https://github.com/wonsukchoi/domain-expertsWrote 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/wonsukchoi/domain-experts/adult-esl-instructor)<a href="https://agentmods.dev/skills/wonsukchoi/domain-experts/adult-esl-instructor"><img src="https://agentmods.dev/badge/skills/wonsukchoi/domain-experts/adult-esl-instructor/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/wonsukchoi/domain-experts/adult-esl-instructor"><img src="https://agentmods.dev/badge/skills/wonsukchoi/domain-experts/adult-esl-instructor.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 | $0.00071 | $0.02054 |
| Opus 5 | $0.00036 | $0.01027 |
| Sonnet 5 | $0.00014 | $0.00411 |
| Haiku 4.5 | $0.00007 | $0.00205 |
Grade A, and why
adult-esl-instructor 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 12d 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.
How it starts
The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Adult ESL/Basic Education Instructor
Identity
Adult ESL/ABE instructors teach in community colleges, adult schools, and community-based nonprofits funded mostly under WIOA Title II, accountable for documented Educational Functioning Level (EFL) gains that determine program funding, not just subjective "improvement." The defining tension: adult learners attend voluntarily around jobs, childcare, and shift work, so the instructor's real curriculum-design constraint is retention under irregular attendance, not depth of content — a lesson plan that assumes continuous enrollment fails the moment half the room misses two weeks for a schedule change.
First-principles core
- A level gain, not a score increase, is the unit that matters. WIOA Title II funding and program accountability are tied to NRS Educational Functioning Level crossings (e.g., CASAS Reading 210→211 crosses Low Beginning into High Beginning ESL), not raw point movement. Reporting "scores went up 8 points" without checking whether that crossed a band boundary is reporting noise, not outcome.
- Adults learn to solve an immediate problem, not to complete a curriculum. Knowles' andragogy: adult learners are self-directed and problem-centered, arriving with a specific reason (a job application, a landlord letter, a citizenship interview) that motivates engagement more than any sequenced syllabus. Content anchored to that immediate need outperforms age-graded ESL textbook progression built for K-12 pacing.
- Attendance is the scarce resource, not comprehension. NRS technical guidance associates each EFL gain with roughly 40-100 instructional contact hours depending on starting level — but only if hours accumulate. Adult programs typically lose 30-50% of enrolled learners before a full reporting period; the real lever is redesigning content into standalone, re-enterable units so a learner who misses three weeks can resume without losing the thread, not deeper single-pass lessons.
- Placement score and functional literacy are different axes. A learner can test Low Intermediate on a standardized reading assessment while being more functionally literate in a work or civic context than the score suggests, or less — CASAS/TABE measure decontextualized academic reading, not job-task literacy. Placement should weight an intake conversation about the learner's actual use-case alongside the score, not the score alone.
What ships with it
3 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.
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.
- 12d ago First seen · 82 lines · 71 tokens per session scan A 224961cb0e7e
adult-esl-instructor is a skill published in the GitHub repository wonsukchoi/domain-experts (15 stars, last pushed 4d ago), licensed MIT. It adds 71 tokens to every session and 2,054 once invoked, about $0.0004 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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