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 98ping/chip --skill canvas-quizgit clone --depth 1 https://github.com/98ping/chipWrote 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/98ping/chip/canvas-quiz)<a href="https://agentmods.dev/skills/98ping/chip/canvas-quiz"><img src="https://agentmods.dev/badge/skills/98ping/chip/canvas-quiz/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/98ping/chip/canvas-quiz"><img src="https://agentmods.dev/badge/skills/98ping/chip/canvas-quiz.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 | $0.00117 | $0.01000 |
| Opus 5.5 | $0.00047 | $0.00400 |
| Sonnet 5.5 | $0.00023 | $0.00200 |
| Haiku 4.5 | $0.00012 | $0.00100 |
Grade A, and why
canvas-quiz 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 1mo 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 — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Canvas quizzes
Drives a Canvas Classic Quiz end to end with the Claude in Chrome tools. The
full runbook — every trap, with the fix — is tooling/CANVAS_QUIZZES.md.
Read it before the first interaction; what follows is the shape of the job.
The page helper is tooling/canvas-quiz.js, the CLI is
scripts/canvas-quiz.mjs.
Which runbook
Check the assignment's submission_types:
["online_quiz"]+ aquiz_id→ this skill.["external_tool"]at myopenmath.com →myopenmathskill. Different machinery entirely (LTI iframe, MathQuill, per-question submits).
Ask first
Three separate asks, and they do not imply each other:
- Opening the attempt — the one people underestimate. On a 1-attempt or
timed quiz this is the irreversible step, not the submit. Always check
infofirst and quote the numbers when you ask. - Typing answers.
- Submitting. Never on your own initiative.
Never enter credentials anywhere.
Steps
-
Find it —
node scripts/canvas-quiz.mjs list <courseId>. The/quizzesAPI index is disabled on many courses; this walks assignments instead, which always works. -
Pre-flight —
node scripts/canvas-quiz.mjs info <courseId> <quizId>andattempts <courseId> <quizId>. Readallowed_attemptsandtime_limitout loud before doing anything. A timed quiz means the clock runs while you think — plan the answers before opening it. -
Open the attempt — a real click on Take the Quiz. A
GETon/takesilently re-renders the landing page and starts nothing; it looks broken but isn't. Confirm#submit_quiz_formexists and the.display_questioncount matchesquestion_count. -
Read and save, before answering. Paste
tooling/canvas-quiz.js, call__QDUMP().javascript_tooltruncates around 1 KB — chunk viaJSON.stringify(__QDUMP()).match(/[\s\S]{1,900}/g). Thennode scripts/canvas-quiz.mjs render <dump.json> output/<name>.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.
- 1mo ago First seen · 81 lines · 117 tokens per session scan A 677c31fde118
canvas-quiz is a skill published in the GitHub repository 98ping/chip (1 stars, last pushed 23d ago), licensed MIT. It adds 117 tokens to every session and 1,000 once invoked, about $0.0005 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 2026-08-31.
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