Borrowing it
Nothing to install: this file belongs to zendev-sh/goai. 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/zendev-sh/goai/main/CLAUDE.mdgit clone --depth 1 https://github.com/zendev-sh/goaiWrote 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/instructions/zendev-sh/goai/claude-md)<a href="https://agentmods.dev/instructions/zendev-sh/goai/claude-md"><img src="https://agentmods.dev/badge/instructions/zendev-sh/goai/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.
<a href="https://agentmods.dev/instructions/zendev-sh/goai/claude-md"><img src="https://agentmods.dev/badge/instructions/zendev-sh/goai/claude-md.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 | $0.01306 | $0.01306 |
| Opus 5.5 | $0.00522 | $0.00522 |
| Sonnet 5.5 | $0.00261 | $0.00261 |
| Haiku 4.5 | $0.00131 | $0.00131 |
Grade A, and why
goai 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 6d 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.
This is a copy
91% identical to goai AGENTS.md — 8 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.
How it starts
The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md - GoAI
Instructions for Claude Code when working on the GoAI codebase.
Commands
go build ./... # Build
go test ./... # Test all packages
go test -cover ./... # Test with coverage
golangci-lint run # Lint
go test ./provider/openai/ # Test single package
Architecture
GoAI is a Go SDK for AI applications - one API across 25+ LLM providers. Inspired by Vercel AI SDK, adapted to Go idioms.
goai/
├── generate.go # GenerateText, StreamText
├── object.go # GenerateObject[T], StreamObject[T]
├── embed.go # Embed, EmbedMany
├── image.go # GenerateImage
├── video.go # GenerateVideo
├── realtime.go # OpenRealtimeSession (experimental realtime voice sessions)
├── options.go # WithPrompt, WithTools, etc.
├── schema.go # SchemaFrom[T] - JSON Schema from Go structs
├── errors.go # APIError, ContextOverflowError
├── retry.go # Exponential backoff (errors.As, not type assertion)
├── caching.go # Prompt cache control (copies msgs, no mutation)
├── types.go # Tool struct
├── messages.go # Message builders
├── hooks.go # Lifecycle hooks (OnRequest, OnResponse, OnToolCallStart, OnToolCall, OnStepFinish, OnFinish, OnPanic, OnBeforeStep, OnBeforeToolExecute, OnAfterToolExecute + Wrap* helpers)
├── partial_json.go # Partial JSON parser for streaming
├── provider/
│ ├── provider.go # LanguageModel, EmbeddingModel, ImageModel, VideoModel, RealtimeModel interfaces
│ ├── realtime.go # Realtime audio formats, params, events, capabilities
│ ├── types.go # Message, Part, Usage, StreamChunk
│ ├── token.go # TokenSource, CachedTokenSource (lock-free fetch)
│ ├── openai/ # OpenAI (Chat Completions + Responses API)
│ ├── anthropic/ # Anthropic (Messages API)
│ ├── google/ # Google Gemini (REST + Live realtime)
│ ├── bedrock/ # AWS Bedrock (Converse API + SigV4 + EventStream, RWMutex for fallback; InvokeModel API for embeddings)
│ ├── vertex/ # Vertex AI
│ ├── azure/ # Azure OpenAI
│ ├── cohere/ # Cohere (Chat v2 + Embed)
│ ├── minimax/ # MiniMax (Anthropic-compat, delegates to anthropic/)
│ ├── compat/ # Generic OpenAI-compatible
│ └── <22 more>/ # Mostly OpenAI-compat (some via compat/ or anthropic/ wrappers)
│ # tools.go files: 5 files with provider-defined tools: anthropic/ (14 tools), openai/ (4 tools), google/ (5 tools), xai/ (2 tools), groq/ (1 tool)
├── internal/
│ ├── openaicompat/ # Shared codec for 22 provider implementation files
│ ├── gemini/ # Schema sanitization (Vertex, Google)
│ ├── sse/ # SSE parser
│ ├── httpc/ # HTTP helpers + ParseDataURL
│ └── realtimews/ # Provider-neutral WebSocket transport for realtime adapters
├── mcp/ # MCP (Model Context Protocol) client
├── observability/
│ ├── langfuse/ # Langfuse observability integration (separate go.mod)
│ └── otel/ # OpenTelemetry tracing and metrics (separate go.mod)
├── examples/ # 33 runnable examples (each with main.go)
└── bench/ # Performance benchmarks (GoAI vs Vercel AI SDK)
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.
- 6d ago Changed 09b65e5d4052
- 9d ago Changed b995971ca62b
- 18d ago Changed · +3 lines · +80 tokens per session e0d11d2618c1
- 28d ago Changed 46fe4f75582b
- 1mo ago Changed b3f537ae6128
- 2mo ago First seen · 87 lines · 1,226 tokens per session scan A 6e52c30257e1
goai CLAUDE.md is an instructions file published in the GitHub repository zendev-sh/goai (234 stars, last pushed 6d ago), licensed MIT. It adds 1,306 tokens to every session, about $0.0052 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 91% identical to goai AGENTS.md, differing in 8 lines, and is treated as a copy.
goai CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| goai CLAUDE.mdzendev-sh/goai | Instructions file | 234 | 6d ago | MIT | A | 1,306 | 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 | yesterday | 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 |