qec-threshold-sweep

qec-threshold-sweep is a command for Claude Code from GuillaumeLessard/qector-claude-plugin. It costs 40 tokens per session (357 once invoked), scanned A, original, no licence file.

A library-only experiment that measures QECTOR quantum error-correction performance across code distances and error rates. It reports logical error rates with 95% Wilson confidence intervals and creates a SHA-256-verified result file.

In plain words
What is it for?
Use it to compare logical error rates across distances and physical error rates, with confidence intervals and an integrity-checked artifact.
Why use it?
It provides statistically qualified sweep results and a way to check that the saved artifact was not changed. It does not require a user-facing application.

Command for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the qector plugin — 28 skills, 11 commands, 5 agents, 2 hooks, 2 MCP servers shipped together

Good fit Use it to compare logical error rates across distances and physical error rates, with confidence intervals and an integrity-checked artifact.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/guillaumelessard/qector-claude-plugin/qec-threshold-sweep
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.

Clone the repo
git clone --depth 1 https://github.com/GuillaumeLessard/qector-claude-plugin

Made for: Claude Code.

Or install qector, the plugin that ships this one along with the rest of its 28 skills, 11 commands, 5 agents, 2 hooks, 2 MCP servers.

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 qec-threshold-sweep

README.md
[![agentmods](https://agentmods.dev/badge/commands/guillaumelessard/qector-claude-plugin/qec-threshold-sweep/github.svg)](https://agentmods.dev/commands/guillaumelessard/qector-claude-plugin/qec-threshold-sweep)
Your own site
<a href="https://agentmods.dev/commands/guillaumelessard/qector-claude-plugin/qec-threshold-sweep"><img src="https://agentmods.dev/badge/commands/guillaumelessard/qector-claude-plugin/qec-threshold-sweep/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 qec-threshold-sweep

Your own site · 80×15
<a href="https://agentmods.dev/commands/guillaumelessard/qector-claude-plugin/qec-threshold-sweep"><img src="https://agentmods.dev/badge/commands/guillaumelessard/qector-claude-plugin/qec-threshold-sweep.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 357 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 unknown 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 $0.00040 $0.00357
Opus 5 $0.00020 $0.00179
Sonnet 5 $0.00008 $0.00071
Haiku 4.5 $0.00004 $0.00036

Measured 9d ago against content hash a5b1a1d79c09, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

qec-threshold-sweep 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 9d ago.

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.

commands/qec-threshold-sweep.md · 21 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 9d ago First seen · 21 lines · 40 tokens per session scan A a5b1a1d79c09

Subscribe to this mod's changes

qec-threshold-sweep is a command published in the GitHub repository GuillaumeLessard/qector-claude-plugin (1 stars, last pushed 16d ago), with no licence file. It adds 40 tokens to every session and 357 once invoked, about $0.0002 per session on Opus 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 2026-08-31.

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