How do I install the Quantum skill?

Run npx skillmds@latest add autonomous-ai/quantum in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Quantum safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Quantum?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Quantum free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Quantum?

autonomous-ai (@autonomous-ai) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Quantum by autonomous-ai — Agent Skill

Name: Quantum
Author: autonomous-ai

File contents

Quantum Studio

The saved source is circuit.json:

{"name":"Bell state","qubits":["q0","q1"],"gates":[{"gate":"H","target":0},{"gate":"CX","control":0,"target":1}],"shots":1024}

Limits: 1–8 uniquely named qubits, 256 gates, 1–100,000 shots. Gates apply in array order. Targets and controls are zero-based. The basis is |q(n−1)…q1q0⟩: qubit 0 is the rightmost bit.

Supported gates: H, X, Y, Z, S, T, SDG, TDG, RX, RY, RZ, CX (alias CNOT), CZ, SWAP. Rotations use theta in radians in JSON; the UI slider displays degrees. Two-qubit gates require distinct control and target. Arbitrary matrices and mid-circuit measurements are not supported. Terminal measure markers may be present, but the displayed state is premeasurement. The shot sampler draws computational-basis outcomes from the joint Born probabilities, without collapse, noise, hardware jobs or persistent quantum state.

Bloch vectors are reduced single-qubit expectations. A Bell pair has individually maximally mixed qubits (purity 0.5), not unit vectors. Preserve their lengths; do not normalize them for display.

Build and prove

sh "$QUANTUM_SKILLS/quantum/scripts/build-quantum.sh"
node "$QUANTUM_SKILLS/quantum/scripts/proof.mjs" circuit.json
node "$QUANTUM_SKILLS/quantum/scripts/screenshot.mjs" "$HARNESS_WORKSPACE/index.html"
node "$QUANTUM_SKILLS/quantum/scripts/perf.mjs" "$HARNESS_WORKSPACE/index.html"

Build validates the schema and finite normalized state, safely embeds JSON, and updates the verdict. Failures clear readiness even if an older HTML export remains. Add assertions for the expected state, not just its norm. engine.mjs exports simulate, probabilities, bloch and sampleShots for tests.

The browser proof also needs Playwright + Chromium (shared viewer installation or PLAYWRIGHT_MODULE) and a current proof.json interaction recipe. It checks actual results, records errors/hashes and captures .harness/last.png. Inspect the image, stepping, edits, undo/redo and narrow layout.

The user can edit gates, scrub the timeline, change rotation phase and sample shots directly. Those edits stay in browser memory. Download the circuit and save it to the workspace to preserve it; never imply the viewer wrote back to disk.

---name: quantumdescription: Build, explain and verify small quantum circuits in Quantum Studio's editable statevector simulator.---# Quantum StudioThe saved source is `circuit.json`:```json{"name":"Bell state","qubits":["q0","q1"],"gates":[{"gate":"H","target":0},{"gate":"CX","control":0,"target":1}],"shots":1024}```Limits: 1–8 uniquely named qubits, 256 gates, 1–100,000 shots. Gates apply in array order.Targets and controls are zero-based. The basis is `|q(n−1)…q1q0⟩`: qubit 0 is the rightmost bit.Supported gates: H, X, Y, Z, S, T, SDG, TDG, RX, RY, RZ, CX (alias CNOT), CZ, SWAP.Rotations use `theta` in radians in JSON; the UI slider displays degrees. Two-qubit gates requiredistinct `control` and `target`. Arbitrary matrices and mid-circuit measurements are not supported.Terminal `measure` markers may be present, but the displayed state is premeasurement. The shotsampler draws computational-basis outcomes from the joint Born probabilities, without collapse,noise, hardware jobs or persistent quantum state.Bloch vectors are reduced single-qubit expectations. A Bell pair has individually maximally mixedqubits (purity 0.5), not unit vectors. Preserve their lengths; do not normalize them for display.## Build and prove```shsh "$QUANTUM_SKILLS/quantum/scripts/build-quantum.sh"node "$QUANTUM_SKILLS/quantum/scripts/proof.mjs" circuit.jsonnode "$QUANTUM_SKILLS/quantum/scripts/screenshot.mjs" "$HARNESS_WORKSPACE/index.html"node "$QUANTUM_SKILLS/quantum/scripts/perf.mjs" "$HARNESS_WORKSPACE/index.html"```Build validates the schema and finite normalized state, safely embeds JSON, and updates the verdict.Failures clear readiness even if an older HTML export remains. Add assertions for the expected state,not just its norm. `engine.mjs` exports `simulate`, `probabilities`, `bloch` and `sampleShots` for tests.The browser proof also needs Playwright + Chromium (shared viewer installation or `PLAYWRIGHT_MODULE`)and a current `proof.json` interaction recipe. It checks actual results, records errors/hashes andcaptures `.harness/last.png`. Inspect the image, stepping, edits, undo/redo and narrow layout.The user can edit gates, scrub the timeline, change rotation phase and sample shots directly.Those edits stay in browser memory. Download the circuit and save it to the workspace to preserve it;never imply the viewer wrote back to disk.

Frequently asked questions

Quantum