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cirq

Category: physical-sciences · License: Apache-2.0 license · Version: 1.1 Tags: quantum computing, quantum circuits, noise modeling, physics

When to use it

Google quantum computing framework. Use when targeting Google Quantum AI hardware, designing noise-aware circuits, or running quantum characterization experiments. Best for Google hardware, noise modeling, and low-level circuit design. For IBM hardware use qiskit; for quantum ML with autodiff use pennylane; for physics simulations use qutip.

Example requests

Ask your agent in plain language, for example:
  • “How do I add depolarizing noise to every gate in a Cirq circuit and compare the result to the ideal one?”
  • “I’m running cirq 1.6.1 with cirq-google and my 12-qubit circuit in qaoa_maxcut.py fails on a Willow processor target with ‘Operation not supported by device gateset’ (a CZ-decomposed circuit with a raw CNOT left in). How do I get it to compile and validate before submitting through Quantum Engine?”
  • “I want to measure how good the two-qubit gates are on my 20-qubit chip by running random circuits of increasing depth and fitting the fidelity decay. Can you set up the characterization experiment and analysis in Python using Google’s stack?”

Install

In Claude Code you can also add the marketplace with /plugin marketplace add KalarisLabs/research-agent-skills and install the whole physical-sciences category with /plugin install physical-sciences@research-agent-skills.

Full playbook

Read SKILL.md for the complete workflow, references and any scripts. The agent installer copies the full skill folder.
Last modified on October 19, 2026