dotnet-quickdup

dotnet-quickdup is a skill for Claude Code, Codex from Postpartum-genushyacinthus29/dotnet-skills. It costs 54 tokens per session (1,332 once invoked), scanned C, a copy of quickdup, MIT.

A .NET clone-detection tool that finds repeated or structurally similar C# code.

In plain words
What is it for?
Use it to scan a solution, project, or source folder for duplicate code and to track duplication checks in local workflows or CI.
Why use it?
Copy-pasted or duplicated logic makes changes harder to keep consistent and creates candidates for refactoring.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions AGENTS.md.

Good fit Use it to scan a solution, project, or source folder for duplicate code and to track duplication checks in local workflows or CI.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-quickdup
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.

Any agent
npx skills add Postpartum-genushyacinthus29/dotnet-skills --skill dotnet-quickdup
Clone the repo
git clone --depth 1 https://github.com/Postpartum-genushyacinthus29/dotnet-skills

Made for: Claude Code, Codex.

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 dotnet-quickdup

README.md
[![agentmods](https://agentmods.dev/badge/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-quickdup/github.svg)](https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-quickdup)
Your own site
<a href="https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-quickdup"><img src="https://agentmods.dev/badge/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-quickdup/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 dotnet-quickdup

Your own site · 80×15
<a href="https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-quickdup"><img src="https://agentmods.dev/badge/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-quickdup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,332 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 97% copy Near-identical to another mod 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 $0.00054 $0.01332
Opus 5 $0.00027 $0.00666
Sonnet 5 $0.00011 $0.00266
Haiku 4.5 $0.00005 $0.00133

Measured 8d ago against content hash 85a9001fc682, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade C, and why

dotnet-quickdup scanned grade C with 2 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 8d 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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

- official macOS/Linux fallback: `curl -sSL https://raw.githubusercontent.com/asynkron/Asynkron.QuickDup/main/install.sh | bash`

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- official macOS/Linux fallback: `curl -sSL https://raw.githubusercontent.com/asynkron/Asynkron.QuickDup/main/install.sh | bash`
Origin

This is a copy

97% identical to quickdup — 12 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/dotnet-quickdup/SKILL.md · 136 lines

How it starts

The opening of the file, as written. The whole thing — 136 lines — stays where its author put it; the contents beside it link to each section on GitHub.

QuickDup for .NET

Trigger On

  • the repo wants QuickDup
  • the team needs repeatable duplicate-code scans for C#
  • the user asks about DRY cleanup, copy-paste detection, clone detection, or duplicate logic removal in a .NET repo

Value

  • produce a concrete project delta: code, docs, config, tests, CI, or review artifact
  • reduce ambiguity through explicit planning, verification, and final validation skills
  • leave reusable project context so future tasks are faster and safer

Do Not Use For

  • formatting-only work
  • repos that intentionally use a different clone detector and do not want overlap
  • generated-code churn where duplication findings would mostly be noise

Inputs

  • the nearest AGENTS.md
  • target solution, project, or source subtree
  • current duplication hotspots and generated-code boundaries

Quick Start

  1. Read the nearest AGENTS.md and confirm scope and constraints.
  2. Run this skill's Workflow through the Ralph Loop until outcomes are acceptable.
  3. Return the Required Result Format with concrete artifacts and verification evidence.

Workflow

  1. Choose the scan target deliberately:
    • whole solution for broad discovery
    • bounded folders for targeted cleanup
  2. Scan C# with .cs only unless the repo explicitly wants Razor, generated XML, or other extensions too.
  3. Exclude generated and transient paths before trusting the results:
    • bin/
    • obj/
    • Migrations/ when scaffold churn dominates
    • *.g.cs
    • *.generated.cs
    • *.Designer.cs
  4. Review the top patterns before refactoring anything.
  5. Classify duplication before changing code:
    • real structural duplication worth extraction
    • domain-shape duplication that documents intent
    • generated or acceptable duplication that should be ignored
  6. Prefer small extractions, named helpers, shared value objects, or focused abstractions over flag-heavy merge methods.
  7. Re-run QuickDup after the refactor and then run the repo's normal quality pass.

Read the full file on GitHub · 136 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 8d ago First seen · 136 lines · 54 tokens per session scan C 85a9001fc682

Subscribe to this mod's changes

dotnet-quickdup is a skill published in the GitHub repository Postpartum-genushyacinthus29/dotnet-skills (10 stars, last pushed yesterday), licensed MIT. It adds 54 tokens to every session and 1,332 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). It is 97% identical to quickdup, differing in 12 lines, and is treated as a copy.

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