loop-virtuoso

loop-virtuoso is a plugin for Claude Code from krzysztofsurdy/code-virtuoso. Its manifest loads nothing; the 2 skills, 4 commands, 2 hooks it bundles cost 189 tokens per session together, scanned A, original, MIT.

An autonomous execution loop that takes one small task from a backlog at a time and checks completion with a verification command. A verification command is a project-defined script whose successful exit confirms the task, alongside a guard against writes to protected files.

In plain words
What is it for?
Use it to carry out backlog-driven development work with objective completion checks and protected-file controls.
Why use it?
It replaces trust in an agent's self-report with checks that can be run and inspected. It also structures larger batches of work into separate, trackable tasks.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it to carry out backlog-driven development work with objective completion checks and protected-file controls.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add krzysztofsurdy/code-virtuoso
/plugin install loop-virtuoso
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/krzysztofsurdy/code-virtuoso

Made for: Claude Code.

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 loop-virtuoso

README.md
[![agentmods](https://agentmods.dev/badge/plugins/krzysztofsurdy/code-virtuoso/loop-virtuoso/github.svg)](https://agentmods.dev/plugins/krzysztofsurdy/code-virtuoso/loop-virtuoso)
Your own site
<a href="https://agentmods.dev/plugins/krzysztofsurdy/code-virtuoso/loop-virtuoso"><img src="https://agentmods.dev/badge/plugins/krzysztofsurdy/code-virtuoso/loop-virtuoso/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 loop-virtuoso

Your own site · 80×15
<a href="https://agentmods.dev/plugins/krzysztofsurdy/code-virtuoso/loop-virtuoso"><img src="https://agentmods.dev/badge/plugins/krzysztofsurdy/code-virtuoso/loop-virtuoso.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 2 skills, 4 commands, 2 hooks cost 189 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

loop-virtuoso 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 2d 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.

plugins/loop-virtuoso/.claude-plugin/plugin.json · 13 lines

What it actually says

{
  "name": "loop-virtuoso",
  "version": "2.0.0",
  "description": "Deterministic, backlog-driven autonomous execution loop. Feeds an agent one small backlog item at a time and gates completion on objective verify-command exit codes and a write-boundary guard, never on the agent's own self-report.",
  "author": {
    "name": "Krzysztof Surdy"
  },
  "homepage": "https://github.com/krzysztofsurdy/code-virtuoso",
  "repository": "https://github.com/krzysztofsurdy/code-virtuoso",
  "license": "MIT",
  "keywords": ["autonomous", "loop", "backlog", "verification", "tdd"]
}
Contents

What it installs

The manifest is a name and a version. 2 skills, 4 commands, 2 hooks travel with it, and installing the plugin installs all of them — 189 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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. 2d ago First seen · 13 lines scan A ef46adeb021a

Subscribe to this mod's changes

loop-virtuoso is a plugin published in the GitHub repository krzysztofsurdy/code-virtuoso (36 stars, last pushed yesterday), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-10-22.