QECTOR Claude Plugin

Official QECTOR quantum error correction engineering plugin for Claude Code and Claude Desktop, version 1.0.6 (published 2026-08-24). Grounded in the QECTOR Decoder v3 reference manual (DOI 10.5281/zenodo.21941046) and the live qector-decoder-v3==1.0.0 Rust/PyO3 wheel. Local stdio transport keeps decoding inside the host environment; the plugin makes no license checks or telemetry calls.

28 Domain Skills

The plugin ships 28 skills. The seven flagship skills are qector-core (verified platform facts, 8 library MCP tools, 5 stable decoders, API grounding), qector-math-foundations (Theorems 1-16 executable ground truth over GF(2), fail-closed syndrome checking H c = s (mod 2), Wilson 95% CIs), qector-developer (Python SDK best practices, parity-check matrix generation, Sinter/Stim adapters, CI/CD testing), qector-researcher (literature review, threshold discovery, Monte Carlo noise simulation, reproducible export), qector-hardware-engineer (physical qubit mapping, heavy-hex/surface graph constraints, cryogenic error budgets), qector-educator (tutorial generation, conceptual explainers, interactive decoding walkthroughs), and qector-sysadmin (environment health diagnostics, resource bounds enforcement, runtime hygiene).

5 Specialized Agents

• qec-developer.md: Code integration, API design, performance tuning.
• qec-researcher.md: Academic research, paper reproduction, threshold sweeps.
• qec-validator.md: Formal mathematical verification and proof checking.
• qec-sysadmin.md: Operations, monitoring, incident response.
• qec-hardware-engineer.md: Physical qubit characterization, cryogenic systems.

Four MCP Servers and Explicit Profiles

qector-library exposes 8 stable tools. qector-research exposes 29 provisional tools for methodology, DEM and circuit inspection, evidence, compatibility, and local measurements. qector-admin exposes 3 privileged tools and requires QECTOR_ADMIN_ENABLED=1 plus confirm=true. qector-desktop-mcp provides the safe Desktop profile with the 8 stable tools. All four servers run locally over stdio; the research and admin servers are opt in.

v1.0.6 Release Changes

The v1.0.6 release moves launchers from bin/ to scripts/ for Claude.ai marketplace compliance, adds a bin/ regression guard to every bundle, and makes qec-setup fall back to native diagnostics in sandboxed or remote environments. Python 3.9 through 3.13 is supported; interpreter pinning uses QECTOR_PYTHON.

Install with Claude Code

claude plugin marketplace add GuillaumeLessard/qector-claude-plugin
claude plugin install qector@qector-tools

Local Plugin Directory Mode

git clone https://github.com/GuillaumeLessard/qector-claude-plugin.git
cd qector-claude-plugin
pip install -r requirements.txt
claude --plugin-dir .