cinderx-smoke-check

cinderx-smoke-check is a skill for Claude Code from sisibeloved/cpython-optimize-skill. It costs 51 tokens per session (212 once invoked), scanned A, original, MIT.

A CinderX installation and JIT smoke check. CinderX is a modified Python runtime with a just-in-time compiler, which turns some Python code into machine code while it runs.

In plain words
What is it for?
Use it to verify imports, initialization, a minimal JIT example, and optional HIR output. HIR is an intermediate view of code used by a compiler.
Why use it?
It catches basic installation, loading, and compiler problems before you spend time on tests or performance measurements.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the cpython-optimize-skill plugin — 35 skills, 2 hooks, 1 MCP server shipped together

Good fit Use it to verify imports, initialization, a minimal JIT example, and optional HIR output. HIR is an intermediate view of code used by a compiler.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sisibeloved/cpython-optimize-skill/cinderx-smoke-check
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.

Any agent
npx skills add sisibeloved/cpython-optimize-skill --skill cinderx-smoke-check
Clone the repo
git clone --depth 1 https://github.com/sisibeloved/cpython-optimize-skill

Made for: Claude Code.

Or install cpython-optimize-skill, the plugin that ships this one along with the rest of its 35 skills, 2 hooks, 1 MCP server.

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 cinderx-smoke-check

README.md
[![agentmods](https://agentmods.dev/badge/skills/sisibeloved/cpython-optimize-skill/cinderx-smoke-check.svg)](https://agentmods.dev/skills/sisibeloved/cpython-optimize-skill/cinderx-smoke-check)
Your own site
<a href="https://agentmods.dev/skills/sisibeloved/cpython-optimize-skill/cinderx-smoke-check"><img src="https://agentmods.dev/badge/skills/sisibeloved/cpython-optimize-skill/cinderx-smoke-check.svg" alt="Measured on agentmods" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 212 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00051 $0.00212
Opus 5 $0.00026 $0.00106
Sonnet 5 $0.00010 $0.00042
Haiku 4.5 $0.00005 $0.00021

Measured 7d ago against content hash b2a8240eee1f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

cinderx-smoke-check 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 7d 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.

plugins/cpython-optimize-skill/skills/cinderx-smoke-check/SKILL.md · 25 lines

What it actually says

CinderX Smoke Check

给 verifier、bootstrap 和 runners 使用。它是进入测试或 benchmark 前的 L1 门禁。

必查

  • import cinderx
  • cinderx.__file__
  • _cinderx 是否可加载
  • cinderx.is_initialized()
  • cinderx.get_import_error()
  • 最小 JIT 函数能否触发
  • HIR / PYTHONJITDUMPFINALHIR 是否可输出

输出

返回 smoke 是否通过、失败项、解释器路径、CinderX 路径、JIT flags 和 HIR 产物路径。

smoke 不通过时,不进入 pyperformance 正式跑分。

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. 7d ago First seen · 25 lines · 51 tokens per session scan A b2a8240eee1f

Subscribe to this mod's changes

cinderx-smoke-check is a skill published in the GitHub repository sisibeloved/cpython-optimize-skill (2 stars, last pushed 9d ago), licensed MIT. It adds 51 tokens to every session and 212 once invoked, about $0.0003 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.

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