rsc-boundary AGENTS.md

rsc-boundary AGENTS.md is an instructions file for Codex, OpenCode from foxted/rsc-boundary. It costs 1,189 tokens per session, scanned A, original, MIT.

Repository instructions for rsc-boundary, a tool that shows which parts of a React application run on the server and which run in the browser. They describe the monorepo, a codebase containing several related packages and apps, and its commands.

In plain words
What is it for?
Use them when working on rsc-boundary, especially when changing its core package, Next.js or TanStack Start adapters, demo site, or test playgrounds.
Why use it?
They give contributors a shared map of the project, helping keep changes in the correct package or app and consistent with the existing layout.

Instructions file for CodexOpenCode

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/foxted/rsc-boundary/agents-md
Clone the repo
git clone --depth 1 https://github.com/foxted/rsc-boundary

Made for: Codex, OpenCode.

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.

agentmods badge for rsc-boundary AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/foxted/rsc-boundary/agents-md.svg)](https://agentmods.dev/instructions/foxted/rsc-boundary/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/foxted/rsc-boundary/agents-md"><img src="https://agentmods.dev/badge/instructions/foxted/rsc-boundary/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,189 This file is loaded in full into every session.
When invoked 1,189 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original 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.

ModelPer sessionOnce invoked
Fable 5 $0.01189 $0.01189
Opus 5 $0.00594 $0.00594
Sonnet 5 $0.00238 $0.00238
Haiku 4.5 $0.00119 $0.00119

Measured 4d ago against content hash 1216c0740925, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

rsc-boundary AGENTS.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 4d 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.

AGENTS.md · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — RSC Boundary

Guidance for AI and human contributors. Keep changes scoped and consistent with this layout.

Purpose

Monorepo for RSC Boundary: tooling that visualizes the boundary between React Server Components and Client Components in any RSC-capable React framework. Published packages live under packages/; the demo site lives under apps/web; lightweight adapter smoke-tests live under playgrounds/.

Layout

Path Role
packages/core @rsc-boundary/core — framework-agnostic: fiber walk, highlights, devtools UI, FrameworkAdapter contract.
packages/next @rsc-boundary/next — Next.js App Router adapter + RscBoundaryProvider.
packages/start @rsc-boundary/start — TanStack Start adapter + RscBoundaryProvider.
apps/web Next.js app: marketing, docs snippets, interactive examples. Depends on @rsc-boundary/next via workspace:*.
playgrounds/next Minimal Next.js 16 App Router app that smoke-tests @rsc-boundary/next. Private, not published.
playgrounds/start Minimal TanStack Start app that smoke-tests @rsc-boundary/start. Private, not published.
config/eslint-config, config/typescript-config Shared ESLint and TypeScript configs (@repo/eslint-config, @repo/typescript-config).

Rule of thumb:

  • Framework-agnostic detection / highlight logic → packages/core.
  • Next.js-specific adapter changes (internals list, root element) → packages/next.
  • TanStack Start-specific adapter changes → packages/start.
  • Wiring, copy, and example routes for the public site → apps/web.

Stack

  • Package manager: pnpm (see root packageManager).
  • Monorepo: Turborepo (turbo.json).
  • App: Next.js App Router, React 19, TypeScript strict.

Commands (repo root)

pnpm install
pnpm dev          # turbo run dev
pnpm build        # turbo run build
pnpm lint         # turbo run lint
pnpm check-types  # turbo run check-types

Run a single workspace with pnpm --filter <name> <script> (e.g. pnpm --filter web dev).

Read the full file on GitHub · 71 lines

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.

  1. 4d ago First seen · 71 lines · 1,189 tokens per session scan A 1216c0740925

Subscribe to this mod's changes

rsc-boundary AGENTS.md is an instructions file published in the GitHub repository foxted/rsc-boundary (126 stars, last pushed 1mo ago), licensed MIT. It adds 1,189 tokens to every session, about $0.0059 per session on Opus 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.