dotnet-modernization

dotnet-modernization is a skill for Claude Code from ivegamsft/basecoat. It costs 91 tokens per session (329 once invoked), scanned A, original, MIT.

Structured guidance for assessing and executing modernization from .NET Framework or older .NET targets to modern .NET. USE FOR: inventory a legacy .NET solution, plan phased .NET upgrade, review NuGet and framework compatibility, define modernization test and release gates, remediate breaking changes during…

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Install with agentmods
npx agentmods add skills/ivegamsft/basecoat/dotnet-modernization
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 ivegamsft/basecoat --skill dotnet-modernization
Clone the repo
git clone --depth 1 https://github.com/ivegamsft/basecoat

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 dotnet-modernization

README.md
[![agentmods](https://agentmods.dev/badge/skills/ivegamsft/basecoat/dotnet-modernization.svg)](https://agentmods.dev/skills/ivegamsft/basecoat/dotnet-modernization)
Your own site
<a href="https://agentmods.dev/skills/ivegamsft/basecoat/dotnet-modernization"><img src="https://agentmods.dev/badge/skills/ivegamsft/basecoat/dotnet-modernization.svg" alt="Measured on agentmods" height="20"></a>
Per session 91 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 329 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 $0.00091 $0.00329
Opus 5 $0.00046 $0.00164
Sonnet 5 $0.00018 $0.00066
Haiku 4.5 $0.00009 $0.00033

Measured today against content hash 3d651e64bf11, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

dotnet-modernization 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 today.

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.

skills/dotnet-modernization/SKILL.md · 46 lines

What it actually says

.NET Modernization

Use this skill when evaluating, planning, or executing migration from legacy .NET Framework or older .NET targets to modern .NET.

When to use

  • Inventorying a solution before modernization
  • Creating phased upgrade plans and risk controls
  • Reviewing package/framework compatibility and breaking changes
  • Defining test and release gates for modernization waves

Inputs

  • Solution and project files (*.sln, *.csproj)
  • Current runtime and framework versions
  • NuGet package graph (direct and transitive)
  • CI test coverage and deployment constraints

Outputs

  • Modernization assessment summary
  • Phased migration plan with checkpoints
  • Dependency remediation recommendations
  • Test and rollout strategy

References

  • ./references/breaking-changes.md
Files

What ships with it

2 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. today First seen · 46 lines · 91 tokens per session scan A 3d651e64bf11

Subscribe to this mod's changes

dotnet-modernization is a skill published in the GitHub repository ivegamsft/basecoat (4 stars, last pushed today), licensed MIT. It adds 91 tokens to every session and 329 once invoked, about $0.0005 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 2026-09-08.

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