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Qiskit Quantum Circuit Assistant

A version-pinned guide for building, simulating, transpiling, and running quantum circuits with Qiskit 2.x and IBM Quantum Runtime.

Dev & CodingAdvanced★ 33,030⑂ 3,248AI score 9/10Last updated: Aug 9, 2026

What it does

  • Enforces the modern Qiskit 2.x workflow: map the problem to a circuit → transpile once against the backend target (ISA circuit) → execute via V2 primitives (SamplerV2/EstimatorV2) with PUBs → analyze register-aware results.
  • Gives a decision table for exact local sampling/estimation, high-performance or noisy Aer simulation, and real IBM QPU execution (including when to prefer QuTiP or PennyLane instead).
  • Lists non-negotiable rules that keep the agent off removed or deprecated APIs: V1 primitives, QuantumInstance, backend.configuration(), BackendProperties, qiskit.pulse.
  • Covers Job/Batch/Session execution modes, error mitigation via resilience levels, observable.apply_layout(), seeds and reproducibility, plus a pre-flight checklist and credential hygiene.
  • Ships bundled scripts (environment check, runnable local primitives demo, read-only backend inspection) and topic-specific reference docs.

Who it's for

  • Engineers and researchers migrating Qiskit 0.x/1.x code to 2.x.
  • Anyone submitting jobs to real hardware on IBM Quantum Platform.
  • Variational-algorithm developers who keep re-transpiling parameterized circuits per iteration.
  • Educators refreshing quantum computing course material against current APIs.

Usage examples

  1. "Build a Bell state and sample it locally with 1024 shots" → correct StatevectorSampler code that reads the meas classical register.
  2. "Pick the least busy QPU and estimate the ZZ expectation value with resilience level 1" → preset pass manager, ISA circuit, and layout-applied observable.
  3. "Run a sweep of circuits together" → Batch-mode context manager pattern with job IDs saved before waiting on results.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/K-Dense-AI/scientific-agent-skills/HEAD/skills/qiskit/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills/qiskit folder from the GitHub repo K-Dense-AI/scientific-agent-skills into my ~/.claude/skills/qiskit/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/K-Dense-AI/scientific-agent-skills.git && mkdir -p ~/.claude/skills && cp -r scientific-agent-skills/skills/qiskit ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal in your working directory.
  2. Clone the repo: git clone https://github.com/K-Dense-AI/scientific-agent-skills.git
  3. Create the skills directory: mkdir -p ~/.claude/skills
  4. Copy this skill only: cp -r scientific-agent-skills/skills/qiskit ~/.claude/skills/
  5. Set up Python 3.10+: uv venv --python 3.13 && source .venv/bin/activate
  6. Install packages: uv pip install "qiskit[visualization]==2.5.0" (add qiskit-aer for noisy simulation, qiskit-ibm-runtime for IBM hardware).
  7. For QPU access, create an IBM Quantum Platform API key and save it securely as described in references/setup.md — never hardcode it.
  8. Restart Claude Code and try: "Use Qiskit to build and simulate a Bell state circuit."
View source on GitHub ↗License: MIT