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.
git clone --depth 1 https://github.com/YujxZJCN/teaching-skills-codexWrote 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/commands/yujxzjcn/teaching-skills-codex/ts-activities)<a href="https://agentmods.dev/commands/yujxzjcn/teaching-skills-codex/ts-activities"><img src="https://agentmods.dev/badge/commands/yujxzjcn/teaching-skills-codex/ts-activities/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/commands/yujxzjcn/teaching-skills-codex/ts-activities"><img src="https://agentmods.dev/badge/commands/yujxzjcn/teaching-skills-codex/ts-activities.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 | $0.00012 | $0.00080 |
| Opus 5 | $0.00006 | $0.00040 |
| Sonnet 5 | $0.00002 | $0.00016 |
| Haiku 4.5 | $0.00001 | $0.00008 |
Grade A, and why
ts-activities 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 10d 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.
What it actually says
Trigger the lesson-builder skill in activities mode. Selects and adapts techniques from the active-learning catalog, scaled to class size and modality, with full logistics and failure modes.
Mode reference: ts/MODE_REGISTRY.md. Skill entry: ts/lesson-builder/WORKFLOW.md.
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.
- 10d ago First seen · 8 lines · 12 tokens per session scan A 7d36ec5342ec
ts-activities is a command published in the GitHub repository YujxZJCN/teaching-skills-codex (6 stars, last pushed 2mo ago), licensed MIT. It adds 12 tokens to every session and 80 once invoked, about $0.0001 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.
Other commands, from other repositories
ts-audit
TS submission-auditor audit / batch-audit mode — check submissions against the spec.
ts-cohort
TS cohort-analyst cohort-profile mode — analyze student readiness data.
ts-dashboard
TS teaching-pipeline dashboard mode — single-file HTML course overview.
ts-deck
TS deck-studio deck mode — render an actual slide deck.
ts-accredit
TS accreditation-mapper map mode — outcomes-to-standards matrix.
ts-activities
TS lesson-builder activities mode — active-learning activity design.