practice

practice is a command for coding agents from Xiaoyun-0922/openmarx. It costs 37 tokens per session (383 once invoked), scanned A, original, MIT.

A command for designing small experiments, pilots, limited releases, and proof-of-concept tests.

In plain words
What is it for?
Use it to plan adoption tests, gray releases, experiments, interventions, and the smallest path to validation.
Why use it?
It helps turn an uncertain idea into a focused trial with explicit assumptions and a way to judge the result.

Command

Part of the marx plugin — 1 skill, 16 commands, 3 hooks shipped together

Install

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.

agentmods
npx agentmods add commands/xiaoyun-0922/openmarx/practice
Clone the repo
git clone --depth 1 https://github.com/Xiaoyun-0922/openmarx

Or install marx, the plugin that ships this one along with the rest of its 1 skill, 16 commands, 3 hooks.

Wrote 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.

agentmods badge for practice

README.md
[![agentmods](https://agentmods.dev/badge/commands/xiaoyun-0922/openmarx/practice.svg)](https://agentmods.dev/commands/xiaoyun-0922/openmarx/practice)
Your own site
<a href="https://agentmods.dev/commands/xiaoyun-0922/openmarx/practice"><img src="https://agentmods.dev/badge/commands/xiaoyun-0922/openmarx/practice.svg" alt="Measured on agentmods" height="20"></a>
Per session 37 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 383 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00037 $0.00383
Opus 5 $0.00018 $0.00192
Sonnet 5 $0.00007 $0.00077
Haiku 4.5 $0.00004 $0.00038

Measured 3d ago against content hash 1ac1f1e932bb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

practice 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 3d 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.

commands/practice.md · 37 lines

What it actually says

Activate the marx skill and output an experiment or intervention plan.

Response language policy:

  • Match the user's language.
  • Keep required contract labels exactly: 已检查证据:, 未检查项目证据:, 实践方案, and 验证标准.
  • Provide bilingual output only when explicitly requested.

Evidence pass:

  • For project/repository/GitHub/adoption tasks, inspect local evidence first.
  • Start with 已检查证据 or 未检查项目证据.
  • First visible output line must be either 已检查证据: or 未检查项目证据: before any title, table, horizontal rule, or summary. Use an ASCII colon :, not a full-width Chinese colon . Do not use variants such as 已检查项目证据:.
  • Do not start with a horizontal rule, generic title, or 证据表; the evidence line comes first.

Evidence freshness:

  • Mark prior-turn facts as reused evidence, not freshly inspected evidence.
  • If a concrete implementation target matters, inspect it this turn or label it as an assumption.

Required final sections:

  • Include 实践方案 and 验证标准 exactly in every project-grounded answer.
  • Do not rename these sections to "next steps", "建议", "接下来的路", or "最小下一步验证".
  • 验证标准 must contain an observable pass/fail rule or measurable metric.

Output only:

  • 当前假设
  • 最小实践
  • 观察指标
  • 成功/失败判据
  • 下一轮修正

User request: $ARGUMENTS

Changes

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.

  1. 3d ago First seen · 37 lines · 37 tokens per session scan A 1ac1f1e932bb

Subscribe to this mod's changes

practice is a command published in the GitHub repository Xiaoyun-0922/openmarx (5 stars, last pushed 4mo ago), licensed MIT. It adds 37 tokens to every session and 383 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.