quantum-guide-algorithms-linear-systems

quantum-guide-algorithms-linear-systems is a skill for Claude Code from xi-zhao/OpenQuantum. It costs 38 tokens per session (772 once invoked), scanned A, original, MIT.

A guide for quantum methods that estimate solutions to linear equations, such as A x = b. It routes the task to open-source implementations using Qiskit or PennyLane and includes classical checks in some cases.

In plain words
What is it for?
Use it for adiabatic, HHL, LCU, QSVT, QSP, or variational linear-system solvers, and for related quantum Fourier-transform circuits.
Why use it?
It helps distinguish different assumptions about the matrix, error, conditioning, and post-selection. This matters because a quantum circuit may produce a state related to the solution rather than an easily readable full vector.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it for adiabatic, HHL, LCU, QSVT, QSP, or variational linear-system solvers, and for related quantum Fourier-transform circuits.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/xi-zhao/openquantum/quantum-guide-algorithms-linear-systems
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 xi-zhao/OpenQuantum --skill quantum-guide-algorithms-linear-systems
Clone the repo
git clone --depth 1 https://github.com/xi-zhao/OpenQuantum

Made for: Claude Code.

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 quantum-guide-algorithms-linear-systems

README.md
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Your own site
<a href="https://agentmods.dev/skills/xi-zhao/openquantum/quantum-guide-algorithms-linear-systems"><img src="https://agentmods.dev/badge/skills/xi-zhao/openquantum/quantum-guide-algorithms-linear-systems/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.

agentmods 80×15 button for quantum-guide-algorithms-linear-systems

Your own site · 80×15
<a href="https://agentmods.dev/skills/xi-zhao/openquantum/quantum-guide-algorithms-linear-systems"><img src="https://agentmods.dev/badge/skills/xi-zhao/openquantum/quantum-guide-algorithms-linear-systems.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 772 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 $0.00038 $0.00772
Opus 5.5 $0.00015 $0.00309
Sonnet 5.5 $0.00008 $0.00154
Haiku 4.5 $0.00004 $0.00077

Measured 13d ago against content hash d66cb6e0c9f7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

quantum-guide-algorithms-linear-systems 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 13d 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.

.agents/skills/quantum-guide-algorithms-linear-systems/SKILL.md · 31 lines

What it actually says

algorithms/linear-systems

本地开源适配。上游指南 ID:algorithms/linear-systems。

分类导航:保留用户显式调用;自动任务直接选择叶子方法 Skill,或使用 quantum-algorithms 查找。

选择工作流

按用户的数学问题、输入表示、计算规模和需要的输出选择一个叶子 Skill。知识解释可直接使用原理;计算任务加载叶子 Skill,使用其中的开源实现和现有代码执行 Tool。无需为阅读指南启动额外服务。

  • quantum-aqc:正定 Hermitian 系统的绝热线性求解路径、条件数相关 schedule 与分片幺正演化;增加 total_time 和 steps 检查绝热与离散误差。
  • quantum-hhl:Hermitian 非奇异 A、QPE、有符号倒数旋转、反 QPE 与后选择;完整解向量来自模拟器,受相位位数和条件数影响。
  • quantum-lcu:使用 Qiskit 的显式量子电路,保留输入、方法参数、实际概率或态矢量;模拟器全态读取不代表硬件可高效读取。
  • quantum-qsvt-qlsa:Hermitian 非奇异矩阵,PennyLane QSVT 和受控 U/U† 后选择;有界奇次几何倒数多项式,输出实际残差,不承诺输入 epsilon 自动满足。
  • quantum-qft:使用 Qiskit 的显式量子电路,保留输入、方法参数、实际概率或态矢量;模拟器全态读取不代表硬件可高效读取。
  • quantum-qsp:QSP/QSVT 相位综合计算 cos(t x) 的有界偶次多项式;报告截断误差和 block 缩放。
  • quantum-vqls:Qiskit 参数电路与全局归一化残差 cost 的变分线性求解;报告数值残差与优化终止原因。

全量条目见覆盖表。如果用户描述跨领域,按实际依赖组合相关叶子 Skill;不要要求用户先阅读整条目录链。

来源与边界

上游 MIT 指南:algorithms/linear-systems。原文作为参考保存在固定检索库,本文件将执行路线改为开源 SDK。来源摘要和算法模块对应关系见coverage.json,许可证与改动说明见NOTICE。

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. 13d ago First seen · 31 lines · 38 tokens per session scan A d66cb6e0c9f7

Subscribe to this mod's changes

quantum-guide-algorithms-linear-systems is a skill published in the GitHub repository xi-zhao/OpenQuantum (74 stars, last pushed 9d ago), licensed MIT. It adds 38 tokens to every session and 772 once invoked, about $0.0002 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 2026-09-25.

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