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 agentmods add skills/webern/mx/mx-questionsnpx skills add webern/mx --skill mx-questionsgit clone --depth 1 https://github.com/webern/mxWhat 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 | $0.00036 | $0.00303 |
| Opus 5 | $0.00018 | $0.00151 |
| Sonnet 5 | $0.00007 | $0.00061 |
| Haiku 4.5 | $0.00004 | $0.00030 |
Grade A, and why
mx-questions 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 2d 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
/mx-questions
Non-negotiable: plain chat only
Never use the AskUserQuestion tool. Never render a numbered option picker. Ask every question as
plain text in the chat, then stop and wait.
The core rule: one question per turn
Ask exactly one question, then stop and wait for the answer. Do not bundle multiple questions into one turn. The user answers one question at a time; batching forces them to scroll back and juggle context.
Wrong:
A few things to clarify:
- What's the target platform?
- Should it support offline mode?
- What's the expected user count?
Right:
What's the target platform?
(wait for answer, then next turn:)
Does it need to work offline?
Flow
- Ask one question, grounded in existing context or the optional prompt. If there's no context, open with "What would you like to work on?"
- Wait for the answer. Use it to shape the next question.
- Repeat until the user says to stop or you have no more questions.
- When they stop, produce a plan summarizing their answers.
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.
- 2d ago First seen · 44 lines · 36 tokens per session scan A b029bc748ebe
mx-questions is a skill published in the GitHub repository webern/mx (93 stars, last pushed 3d ago), licensed MIT. It adds 36 tokens to every session and 303 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 2026-08-30.
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