Borrowing it
Nothing to install: this file belongs to s0ld13rr/pentestcode. 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/s0ld13rr/pentestcode/main/CLAUDE.mdgit clone --depth 1 https://github.com/s0ld13rr/pentestcodeWrote 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/s0ld13rr/pentestcode/claude-md)<a href="https://agentmods.dev/instructions/s0ld13rr/pentestcode/claude-md"><img src="https://agentmods.dev/badge/instructions/s0ld13rr/pentestcode/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/s0ld13rr/pentestcode/claude-md"><img src="https://agentmods.dev/badge/instructions/s0ld13rr/pentestcode/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 | $0.09753 | $0.09753 |
| Opus 5.5 | $0.03901 | $0.03901 |
| Sonnet 5.5 | $0.01951 | $0.01951 |
| Haiku 4.5 | $0.00975 | $0.00975 |
Grade A, and why
pentestcode 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 522 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
What This Is
PentestCode — AI pentesting agent, hard fork of OpenCode (dev branch, MIT). OpenCode — coding agent (183k stars). We stripped code-editing focus and rebuilt it for penetration testing.
Stack: TypeScript, Bun, Effect library, Turbo monorepo. TUI: React/Ink (via @opentui). LLM: ai-sdk (20+ providers). DB: SQLite (drizzle-orm).
Project Structure
opencode-fork/ # Will be renamed to pentestcode
├── packages/
│ ├── core/src/ # Domain logic, tools, sessions
│ │ ├── engagement/ # NEW: pentest state (schema, store, context)
│ │ ├── session/ # Session management (runner, compaction)
│ │ ├── tool/ # Tool registry + built-in tools
│ │ ├── system-context/ # Context sources injected into prompts
│ │ ├── skill/ # Skill discovery + loading
│ │ └── agent.ts # Agent schema, default ID = "pentest"
│ ├── opencode/src/ # Main application package
│ │ ├── agent/agent.ts # Agent definitions (pentest/recon/scanner/...)
│ │ ├── session/prompt/*.txt # System prompts per agent
│ │ ├── session/system.ts # Prompt assembly (uses pentest.txt)
│ │ ├── session/prompt.ts # Session runner loop
│ │ ├── tool/ # Tool implementations (registry.ts is master)
│ │ ├── skill/ # Skill discovery paths
│ │ └── cli/ # CLI commands (yargs)
│ ├── llm/ # LLM client abstraction (ai-sdk)
│ ├── tui/ # Terminal UI (React/Ink)
│ ├── server/ # HTTP server + SSE events
│ ├── schema/ # Shared type definitions
│ ├── protocol/ # HTTP API contracts
│ ├── plugin/ # Plugin system
│ └── client/ # Generated SDK client
├── skills/
│ ├── phases/ # Phase checklists (6 files)
│ ├── services/ # Service knowledge packs (9 files)
│ └── playbooks/ # Methodology playbooks (4 files)
└── ...
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.
- 1mo ago Changed · +58 lines · +1,440 tokens per session 3a348a883fc6
- 1mo ago First seen · 464 lines · 8,313 tokens per session scan A 6868cfa0bd5b
pentestcode CLAUDE.md is an instructions file published in the GitHub repository s0ld13rr/pentestcode (879 stars, last pushed 20d ago), licensed MIT. It adds 9,753 tokens to every session, about $0.0390 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.
Other instructions, from other repositories
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).
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.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
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.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.