Borrowing it
Nothing to install: this file belongs to christopher-buss/bedrock. 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/christopher-buss/bedrock/main/CLAUDE.mdgit clone --depth 1 https://github.com/christopher-buss/bedrockWrote 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/christopher-buss/bedrock/claude-md)<a href="https://agentmods.dev/instructions/christopher-buss/bedrock/claude-md"><img src="https://agentmods.dev/badge/instructions/christopher-buss/bedrock/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/christopher-buss/bedrock/claude-md"><img src="https://agentmods.dev/badge/instructions/christopher-buss/bedrock/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 | $0.04320 | $0.04320 |
| Opus 5.5 | $0.01728 | $0.01728 |
| Sonnet 5.5 | $0.00864 | $0.00864 |
| Haiku 4.5 | $0.00432 | $0.00432 |
Grade A, and why
bedrock 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 5d 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 — 382 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Bedrock Project Context
What is Bedrock?
Infrastructure-as-Code deployment tool for Roblox, written in TypeScript. Modern replacement for Mantle (Rust-based tool no longer maintained).
Architecture
- Language: TypeScript (ES modules)
- Runtime: Bun
- Auth: Roblox Open Cloud APIs only (no ROBLOSECURITY)
- Toolchain: Vite+ (
vp packbuilds,vp testruns Vitest,vp runorchestrates tasks) - Lint: eslint from monorepo root only (
pnpm lint), no per-package lint scripts
Architecture Quick Reference
Pattern: FCIS (Functional Core, Imperative Shell) + Ports
┌─────────────────────────────────────────────────────┐
│ Shell │
│ (I/O, CLI commands, orchestration) │
│ │
│ ┌─────────────────────────────────────────────┐ │
│ │ Core │ │
│ │ (Pure functions, business logic, no I/O) │ │
│ └─────────────────────────────────────────────┘ │
│ │
│ ┌──────────┐ ┌──────────┐ ┌──────────┐ │
│ │ Port │ │ Port │ │ Port │ │
│ │ (State) │ │(OpenCloud)│ │ (Config) │ │
│ └────┬─────┘ └────┬─────┘ └────┬─────┘ │
└───────┼─────────────┼─────────────┼───────────────┘
│ │ │
┌────▼────┐ ┌─────▼────┐ ┌────▼─────┐
│ Adapter │ │ Adapter │ │ Adapter │
│ (Gist) │ │ (HTTP) │ │ (c12) │
└─────────┘ └──────────┘ └──────────┘
- Core: Pure functions, no side effects, easy to test
- Shell: Orchestrates I/O, calls core with data from adapters
- Ports: Interfaces defining what adapters must implement
- Adapters: Concrete implementations (Gist, Open Cloud HTTP, etc.)
Testing Requirements (NON-NEGOTIABLE)
Every line of production code must be written in response to a failing test.
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.
- 5d ago Changed · +2 tokens per session 8587a2f1923d
- 29d ago Changed · +1 lines · +25 tokens per session e53a12eb1c86
- 1mo ago First seen · 381 lines · 4,293 tokens per session scan A 14aa17de25d1
bedrock CLAUDE.md is an instructions file published in the GitHub repository christopher-buss/bedrock (19 stars, last pushed today), licensed MIT. It adds 4,320 tokens to every session, about $0.0173 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 2026-09-01.
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).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.