What is go2cs CLAUDE.md?

A set of Claude Code instructions for go2cs, including an overview of the project, its architecture, its source tree, and its build and test process.

Use it when navigating, modifying, building, or testing the go2cs project, especially its `src/core` area.

It helps a coding assistant understand where things belong and how to verify changes before editing the core source code.

How ritchiecarroll/go2cs configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to ritchiecarroll/go2cs. 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/ritchiecarroll/go2cs/master/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/ritchiecarroll/go2cs

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/ritchiecarroll/go2cs/claude-md/github.svg)](https://agentmods.dev/instructions/ritchiecarroll/go2cs/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/ritchiecarroll/go2cs/claude-md"><img src="https://agentmods.dev/badge/instructions/ritchiecarroll/go2cs/claude-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/ritchiecarroll/go2cs/claude-md"><img src="https://agentmods.dev/badge/instructions/ritchiecarroll/go2cs/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 4,160 This file is loaded in full into every session.

When invoked 4,160 The same file — it is already loaded in full.

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.

Model	Per session	Once invoked
Fable 5.1	$0.04160	$0.04160
Opus 5.5	$0.01664	$0.01664
Sonnet 5.5	$0.00832	$0.00832
Haiku 4.5	$0.00416	$0.00416

Measured 10d ago against content hash dcc1361e5d30, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

go2cs CLAUDE.md 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 10d 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.md · 209 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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.

10d ago Changed · +12 tokens per session dcc1361e5d30
1mo ago Changed · +1 lines · +23 tokens per session 643ce5f0fe65
1mo ago Changed · +2 tokens per session d7b1f365945a
1mo ago Changed · -2 tokens per session 1ebc5690f0ba
1mo ago Changed · +14 tokens per session 10b2c4106a89
1mo ago Changed · +11 lines · +319 tokens per session cc8d751b3712
1mo ago Changed · -1,195 lines · -32,750 tokens per session f245dea48a70
2mo ago First seen · 1,392 lines · 36,542 tokens per session scan A 76ab37264971

Subscribe to this mod's changes

go2cs CLAUDE.md is an instructions file published in the GitHub repository ritchiecarroll/go2cs (401 stars, last pushed today), with no licence file. It adds 4,160 tokens to every session, about $0.0166 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 2026-08-30.

C# and .NET Go compiler dotnet go interop

go2cs CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
go2cs CLAUDE.mdritchiecarroll/go2cs	Instructions file	401	today	none	A	4,160	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

go2cs: Instructions file for Claude Code