Borrowing it
Nothing to install: this file belongs to vibesurf-ai/claude-surf. 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/vibesurf-ai/claude-surf/main/CLAUDE.mdgit clone --depth 1 https://github.com/vibesurf-ai/claude-surfWrote 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/vibesurf-ai/claude-surf/claude-md)<a href="https://agentmods.dev/instructions/vibesurf-ai/claude-surf/claude-md"><img src="https://agentmods.dev/badge/instructions/vibesurf-ai/claude-surf/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/vibesurf-ai/claude-surf/claude-md"><img src="https://agentmods.dev/badge/instructions/vibesurf-ai/claude-surf/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 | $0.02935 | $0.02935 |
| Opus 5 | $0.01468 | $0.01468 |
| Sonnet 5 | $0.00587 | $0.00587 |
| Haiku 4.5 | $0.00294 | $0.00294 |
Grade A, and why
claude-surf CLAUDE.md scanned grade A with 1 finding 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
1. Checks if VibeSurf is running (`curl http://127.0.0.1:9335/health`) How it starts
The opening of the file, as written. The whole thing — 377 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
Claude-Surf is a Claude Code plugin that integrates with VibeSurf, exposing browser automation, AI skills, workflows, and external app integrations through a pure markdown skill system.
Key Dependency: VibeSurf server must be running on http://127.0.0.1:9335 for this plugin to function.
Architecture
Superpowers-Inspired Design
This plugin follows the superpowers architecture pattern:
- No build system - Pure markdown skills, no compilation
- Hook-based injection - SessionStart injects skill content
- Frontmatter-driven -
descriptionfield defines triggers - Direct API access - Claude calls VibeSurf HTTP API directly
Project Structure
claude-surf/
├── .claude-plugin/
│ ├── plugin.json # Plugin metadata
│ └── marketplace.json # Marketplace configuration
├── hooks/
│ ├── hooks.json # Hook configuration
│ ├── session-start.sh # Health check + skill injection
│ └── run-hook.cmd # Cross-platform wrapper
├── skills/
│ ├── surf/ # Main entry skill (auto-injected)
│ ├── search/ # AI web search
│ ├── fetch/ # Fetch URL content as markdown
│ ├── js_code/ # Structured data extraction
│ ├── crawl/ # Page content extraction
│ ├── summary/ # Page summarization
│ ├── finance/ # Stock data
│ ├── trend/ # Trending news
│ ├── screenshot/ # Screenshots
│ ├── browser/ # Direct browser control (21 actions)
│ ├── browser-use/ # AI multi-step automation
│ ├── website-api/ # Platform APIs (XiaoHongShu/etc)
│ ├── workflows/ # Pre-built workflows
│ └── integrations/ # External apps (Gmail/GitHub/etc)
├── README.md
└── CLAUDE.md
Skill System
Auto-Injected Skill
surf - Main entry point, automatically injected via SessionStart hook
- Provides navigation to all other skills
- Contains VibeSurf API documentation
- No manual invocation needed
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 First seen · 377 lines · 2,935 tokens per session scan A cb6f65098952
claude-surf CLAUDE.md is an instructions file published in the GitHub repository vibesurf-ai/claude-surf (24 stars, last pushed 7mo ago), licensed MIT. It adds 2,935 tokens to every session, about $0.0147 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
vibe-coding-prompt-template backend.instructions.md
Instructions for KhazP/vibe-coding-prompt-template: Read AGENTS.md, agentdocs/techstack.md, and agentdocs/codepatterns.md.
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.