mtk-agent-toolkit: Skill for Claude Code

.claude/skills/tech-stack-dotnet/SKILL.md

tech-stack-dotnet is a skill for Claude Code from moberghr/mtk-agent-toolkit. It costs 29 tokens per session (3,925 once invoked), scanned A, original, MIT.

A set of .NET and C# guidance for general software-development workflows. .NET is Microsoft's platform for building applications, and C# is one of its programming languages.

In plain words
What is it for?
Use it automatically in .NET projects for builds, tests, code formatting, linting, type or project checks, and database-access guidance.
Why use it?
It gives workflow tools the project-specific commands and patterns needed to build, test, format, and review .NET code correctly.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: mentions Codex.

This is moberghr/mtk-agent-toolkit's own configuration. It tells Claude Code how to work on mtk-agent-toolkit itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything mtk-agent-toolkit configures →

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the mtk plugin — 33 skills, 7 agents, 6 hooks shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to moberghr/mtk-agent-toolkit. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/moberghr/mtk-agent-toolkit/main/.claude/skills/tech-stack-dotnet/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/moberghr/mtk-agent-toolkit

Made for: Claude Code.

Or install mtk, the plugin that ships this one along with the rest of its 33 skills, 7 agents, 6 hooks.

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 tech-stack-dotnet

README.md
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Your own site
<a href="https://agentmods.dev/skills/moberghr/mtk-agent-toolkit/tech-stack-dotnet"><img src="https://agentmods.dev/badge/skills/moberghr/mtk-agent-toolkit/tech-stack-dotnet/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 tech-stack-dotnet

Your own site · 80×15
<a href="https://agentmods.dev/skills/moberghr/mtk-agent-toolkit/tech-stack-dotnet"><img src="https://agentmods.dev/badge/skills/moberghr/mtk-agent-toolkit/tech-stack-dotnet.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,925 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 original 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 $0.00029 $0.03925
Opus 5.5 $0.00012 $0.01570
Sonnet 5.5 $0.00006 $0.00785
Haiku 4.5 $0.00003 $0.00392

Measured 16d ago against content hash 893d89855471, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tech-stack-dotnet 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 16d 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.

.claude/skills/tech-stack-dotnet/SKILL.md · 235 lines

How it starts

The opening of the file, as written. The whole thing — 235 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tech Stack: .NET

Overview

.NET/C# context for the workflow skills and review agents: commands, detection markers, the Moberg EF/MediatR rules, the analyzer wall, settings and scan recipes.

When To Use

Loaded automatically by commands and skills when the active tech stack is dotnet. Not invoked directly.

Build & Test Commands

  • Compile: dotnet build --nologo -v q
  • Test (batch): dotnet test --nologo -v q --no-build --filter <project> — under Microsoft.Testing.Platform (.slnx, or global.json runner set to MTP) --filter is rejected; pass runner args after --: dotnet test --solution <slnx> -- --filter-class <FullyQualifiedClass> (or --filter-method). A rejected filter fails the run, so a "filtered" test claim was never scoped — match the filter form to the runner.
  • Test (full): dotnet test --nologo -v q --no-build
  • Migrations (dotnet ef): in a multi-project solution supply both --project <DataProject> and --startup-project <MigratorProject>, name the context (--context <DbContext>), and export a dummy ConnectionStrings__<Context>=Host=localhost;Database=x;Username=x;Password=x so design-time construction succeeds without a live database. Omitting the startup project or the connection string is the recurring failure — three agents rediscovered it in one field run.
  • Bounded output is the default. --no-build assumes the build step ran in the same checkpoint; when running tests alone, drop it. Batch checkpoints run these through bash scripts/mtk-verify-run.sh --label <batch-id>-<step> -- <cmd> — the wrapper's bounded tail is the evidence, the log path is the receipt. -v q hides analyzer warnings — acceptable, because the review lanes read the diff, not the build log.
  • Test (list-only): enumerates discovered tests without executing them — the F7/command-verification list variant used to verify dotnet test is runnable without paying for a full suite run. Conditional on the solution format:
    • .sln: dotnet test <sln> --list-tests
    • .slnx (or global.json sets "test": {"runner": "Microsoft.Testing.Platform"}): dotnet test --solution <slnx> --list-tests — a bare dotnet test <slnx> --list-tests fails with "Specifying a solution for 'dotnet test' should be via '--solution'" under Microsoft.Testing.Platform.
  • Format: whitespace + style only, never a bare dotnet format (see the Format Command section).

Read the full file on GitHub · 235 lines

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. 16d ago Changed · -73 lines 893d89855471
  2. 1mo ago Changed · +1 lines dff9adbace97
  3. 1mo ago Changed · +1 lines a1c87e0fc743
  4. 1mo ago Changed 6b598588440a
  5. 2mo ago First seen · 306 lines · 29 tokens per session scan A 462b256e1a41

Subscribe to this mod's changes

tech-stack-dotnet is a skill published in the GitHub repository moberghr/mtk-agent-toolkit (9 stars, last pushed 8d ago), licensed MIT. It adds 29 tokens to every session and 3,925 once invoked, about $0.0001 per session on Opus 5.5. 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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