What is intheloop AGENTS.md?

Development instructions for In the Loop, a real-time collaborative notebook system. They explain its monorepo structure—a single repository containing multiple related packages—and its browser and external runtime agents.

Use them when developing or checking In the Loop’s collaborative notebooks, real-time execution, runtime agents, or integrated AI features.

They give coding agents the architecture and current project status needed to choose the right package, command, and verification steps.

How runtimed/intheloop configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to runtimed/intheloop. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/runtimed/intheloop/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/runtimed/intheloop

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/runtimed/intheloop/agents-md/github.svg)](https://agentmods.dev/instructions/runtimed/intheloop/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/runtimed/intheloop/agents-md"><img src="https://agentmods.dev/badge/instructions/runtimed/intheloop/agents-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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/runtimed/intheloop/agents-md"><img src="https://agentmods.dev/badge/instructions/runtimed/intheloop/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 2,960 This file is loaded in full into every session.

When invoked 2,960 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.02960	$0.02960
Opus 5.5	$0.01184	$0.01184
Sonnet 5.5	$0.00592	$0.00592
Haiku 4.5	$0.00296	$0.00296

Measured 2mo ago against content hash a2f8db6eb3f1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

intheloop 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 2mo 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 · 346 lines

How it starts

The opening of the file, as written. The whole thing — 346 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AI Agent Development Context

This document provides essential context for AI assistants working on the In the Loop project.

Current work state and development priorities. What works, what's experimental, what needs improvement. Last updated: October 2025.

Development Workflow: The user typically runs the integrated development server (pnpm dev) which handles both frontend and backend. For checking work, run type checks first, followed by lints, tests, and UI builds. The iframe outputs server runs separately (pnpm dev:iframe).

Project Overview

In the Loop is a real-time collaborative notebook system built on event-sourced architecture using LiveStore. It supports multiple runtime paradigms: external runtime agents via @runt JSR packages, and in-browser runtime agents for HTML and Python (Pyodide) that execute directly in the web client.

Current Status: A working system deployed at https://app.runt.run. Features real-time collaboration, persistent execution outputs, and integrated AI capabilities. The system is stable for experimentation and real usage while actively developed.

Architecture

Monorepo Structure

In the Loop is organized as a monorepo with four core packages and a unified web application:

Packages (packages/): Core libraries published to npm/JSR for runtime agent development
Web Client (src/): React-based notebook interface with integrated backend
Backend (backend/): Cloudflare Worker serving API and sync functionality
Runtime Agents: External (via @runt JSR packages) and in-browser (HTML/Python) execution

Core Packages

@runtimed/schema: LiveStore schema definitions with full type inference across packages
@runtimed/agent-core: Runtime agent framework with artifact storage and observability
@runtimed/ai-core: Multi-provider AI integration (OpenAI, Ollama, Groq) with tool calling
@runtimed/pyodide-runtime: In-browser Python runtime with scientific computing stack

Read the full file on GitHub · 346 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.

2mo ago First seen · 346 lines · 2,960 tokens per session scan A a2f8db6eb3f1

Subscribe to this mod's changes

intheloop AGENTS.md is an instructions file published in the GitHub repository runtimed/intheloop (54 stars, last pushed 15d ago), licensed BSD-3-Clause. It adds 2,960 tokens to every session, about $0.0118 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.

intheloop AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
intheloop AGENTS.mdruntimed/intheloop	Instructions file	54	15d ago	BSD-3-Clause	A	2,960	Codex, OpenCode
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

intheloop: Instructions file for Codex