mrmustard-optics

mrmustard-optics is a skill for Claude Code, Codex from xi-zhao/OpenQuantum. It costs 46 tokens per session (870 once invoked), scanned A, original, MIT.

A local calculator for continuous-variable quantum optics, modelling vacuum light through Gaussian gates such as displacement, squeezing, beam splitters and loss. It returns phase-space averages, photon numbers and photon-number probabilities with an explicit cutoff.

In plain words
What is it for?
Use it to model coherent, squeezed and two-mode optical states, apply linear optical operations, and examine quadrature statistics or Fock-basis probabilities.
Why use it?
It lets you inspect ideal optical circuits without hardware or remote services. The cutoff is visible, so you can check how much probability was omitted instead of hiding truncation effects.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it to model coherent, squeezed and two-mode optical states, apply linear optical operations, and examine quadrature statistics or Fock-basis probabilities.

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Install with agentmods
npx agentmods add skills/xi-zhao/openquantum/mrmustard-optics
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 mrmustard-optics
Clone the repo
git clone --depth 1 https://github.com/xi-zhao/OpenQuantum

Made for: Claude Code, Codex.

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 mrmustard-optics

README.md
[![agentmods](https://agentmods.dev/badge/skills/xi-zhao/openquantum/mrmustard-optics/github.svg)](https://agentmods.dev/skills/xi-zhao/openquantum/mrmustard-optics)
Your own site
<a href="https://agentmods.dev/skills/xi-zhao/openquantum/mrmustard-optics"><img src="https://agentmods.dev/badge/skills/xi-zhao/openquantum/mrmustard-optics/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 mrmustard-optics

Your own site · 80×15
<a href="https://agentmods.dev/skills/xi-zhao/openquantum/mrmustard-optics"><img src="https://agentmods.dev/badge/skills/xi-zhao/openquantum/mrmustard-optics.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 870 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 $0.00046 $0.00870
Opus 5.5 $0.00018 $0.00348
Sonnet 5.5 $0.00009 $0.00174
Haiku 4.5 $0.00005 $0.00087

Measured 4d ago against content hash 709bf139eaa1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mrmustard-optics 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 4d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (mcp/bridge.py, mcp/contracts.mjs, mcp/server.mjs, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/mrmustard-optics/SKILL.md · 32 lines

What it actually says

MrMustard 连续变量光学

原生 SDK 路径

本能力同时支持 MrMustard 的原生公开 API。用户需要 任意连续变量态、门、信道、参数与优化 时,由 Agent 在固定依赖环境中编写和运行任务代码,不限于下文便捷 Tool 的预设模型。

使用 node scripts/sdk-access.mjs inspect mrmustard-optics 定位环境,按完整 SDK 工作流执行。模块导航:mrmustard;导航不是 API 白名单。

固定 Python 3.11 / TensorFlow 2.15 环境;原生 wheel 与目标平台兼容性需核验。

下文关于模型、门集、输入与预算的限制描述便捷 Tool 的合同;原生 SDK 另受上游版本、可选依赖、宿主资源与用户授权约束。已禁用或被拒绝的动作不能借代码路径绕过。执行状态和科研验收分别报告。

Agent 经 Harness 调用 mrmustard_local 的 simulate_mrmustard_optics。适合相干、压缩、双模关联和线性光学模型;有确定光子数输入时优先选 Perceval/Lightworks,需要可微 Fock 层时选 MerLin。

输入 numModes、操作序列和每模式的 cutoff。初态为真空。D 使用 x,y,对应复位移 alpha=x+iy;S 与 S2 使用非负压缩量 r 和相位 phi;R 使用 theta;BS 使用 theta,phi,幅度混合的系数为 cos(theta)、sin(theta);LOSS 使用 [0,1] 的 transmissivity。角度均为弧度,模式从 0 编号。两个模式的门接受任意不同模式。

hbar=2,真空协方差为单位阵;输出的 quadrature 顺序是所有 x 后接所有 p。相空间均值、协方差和 meanPhotons 不使用 Fock 截断。fockProbabilities 只包含各模式 0 到 cutoff−1 的占据数,并保留原始概率;retainedProbability 是其总质量,不做归一化掩盖截断。判断分布前检查该值并按需要增大 cutoff,输出规模为 cutoff^numModes。浮点舍入可能使极小概率或总和略偏离物理范围,不能把它当成新物理。

固定 MrMustard 0.7.3(Apache-2.0)。上游仓库已于 2026-07-29 归档,因此按需启用该兼容接口;不是仍受上游维护的承诺。本接口不开放训练、非高斯初态、测量条件化或硬件控制。

先显式运行 node scripts/setup-paper-tools.mjs mrmustard-optics 准备 Python 3.11 固定环境,再启用连接。调用不安装依赖,不连接远程服务;SDK 编译/缓存可能写本地文件,最大副作用为 workspace-write。部署线程、超时、输出预算使用 execution,不作为物理参数上限。

当前为 L1;结果 scientificValidation=not_evaluated。数值回归与 MCP 测试不替代 central Acceptance Builder 的科学验收。

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago Changed · +13 lines 709bf139eaa1
  2. 18d ago First seen · 19 lines · 46 tokens per session scan A 5bb60ba103ee

Subscribe to this mod's changes

mrmustard-optics is a skill published in the GitHub repository xi-zhao/OpenQuantum (75 stars, last pushed yesterday), licensed MIT. It adds 46 tokens to every session and 870 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 2026-09-29.

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