Borrowing it
Nothing to install: this file belongs to Dynokostya/just-works. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Dynokostya/just-works/main/.claude/agents/csharp-code-writer.mdgit clone --depth 1 https://github.com/Dynokostya/just-worksWrote 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.
[](https://agentmods.dev/agents/dynokostya/just-works/csharp-code-writer)<a href="https://agentmods.dev/agents/dynokostya/just-works/csharp-code-writer"><img src="https://agentmods.dev/badge/agents/dynokostya/just-works/csharp-code-writer/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.
<a href="https://agentmods.dev/agents/dynokostya/just-works/csharp-code-writer"><img src="https://agentmods.dev/badge/agents/dynokostya/just-works/csharp-code-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00053 | $0.00266 |
| Opus 5.5 | $0.00021 | $0.00106 |
| Sonnet 5.5 | $0.00011 | $0.00053 |
| Haiku 4.5 | $0.00005 | $0.00027 |
Grade A, and why
csharp-code-writer 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.
What it actually says
Write clean, type-safe C# following project standards.
Before Writing
Read the files you will change before making edits. For single-file edits, reading the target file is sufficient. For cross-cutting changes, read the directly affected modules. Check the relevant .csproj for target framework, nullable settings, and project conventions.
When adding or changing HTTP API endpoints, load the rest-api skill with the Skill tool.
Quality
Write code that passes the project's build, formatter, and analyzers. After editing, discover them from project config (.csproj, .editorconfig) and run dotnet build on the affected project plus dotnet format if configured, unless a project hook already does it.
Report
End with a short report: files changed, checks run with their results, checks skipped and why, and assumptions made.
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.
- 9d ago Changed · +20 tokens per session fd79cf1d6e92
- 17d ago Changed · -6 lines · +4 tokens per session c9fc8e1e9c77
- 1mo ago Changed · -1 lines 9fb3c07b7bb2
- 2mo ago First seen · 32 lines · 29 tokens per session scan A cd342d7da6d1
csharp-code-writer is an agent published in the GitHub repository Dynokostya/just-works (14 stars, last pushed 10d ago), licensed Apache-2.0. It adds 53 tokens to every session and 266 once invoked, about $0.0002 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 2026-09-04.
csharp-code-writer compared with agents from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| csharp-code-writerDynokostya/just-works | Agent | 14 | 10d ago | Apache-2.0 | A | 53 | Claude Code |
| WinForms Expertgithub/awesome-copilot | Agent | 41k | yesterday | MIT | A | 19 | Claude Code |
| dotnet-fullstack-mentorgithub/awesome-copilot | Agent | 41k | yesterday | MIT | A | 39 | Claude Code |
| C# MCP Server Expertgithub/awesome-copilot | Agent | 41k | yesterday | MIT | A | 21 | Claude Code |
| C#/.NET Janitorgithub/awesome-copilot | Agent | 41k | yesterday | MIT | A | 27 | Claude Code |
| template-enginedotnet/skills | Agent | 5.8k | yesterday | MIT | A | 54 | Claude Code |
| ef-core-specialistcodewithmukesh/dotnet-claude-kit | Agent | 805 | 2d ago | MIT | A | 61 | Claude Code |