What is J-Board AGENTS.md?

A set of instructions for coding agents working on J-Board, a Next.js web application backed by a database and Redis, a fast data store. It explains the project's components, ownership boundaries, and rules for working with its Next.js version.

Use it as repository guidance when editing App Router files, metadata, route handlers, server actions, caching, or the project's account, billing, support, and proxy-related features.

It prevents agents from applying outdated framework assumptions or changing systems that belong to another component.

How JetSprow/J-Board configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to JetSprow/J-Board. 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/JetSprow/J-Board/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/JetSprow/J-Board

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/jetsprow/j-board/agents-md/github.svg)](https://agentmods.dev/instructions/jetsprow/j-board/agents-md)

Your own site

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

Per session 669 This file is loaded in full into every session.

When invoked 669 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	$0.00669	$0.00669
Opus 5.5	$0.00268	$0.00268
Sonnet 5.5	$0.00134	$0.00134
Haiku 4.5	$0.00067	$0.00067

Measured 2mo ago against content hash f9fec4af6b6c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

J-Board 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 · 59 lines

How it starts

The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.

This is NOT the Next.js you know

This version has breaking changes — APIs, conventions, and file structure may all differ from your training data. Read the relevant guide in node_modules/next/dist/docs/ before writing any code. Heed deprecation notices.

Repository Notes For Coding Agents

This file is for agents working in this repository. Product, deployment, API, and operations documentation belongs in README.md, docs/API.md, and agent/jboard-agent/README.md.

Project Shape

J-Board is a Next.js App Router application backed by Prisma/PostgreSQL and Redis. It integrates with 3x-ui rather than replacing it:

J-Board owns users, orders, plans, subscriptions, payments, support, notifications, audit logs, settings, and risk review.
3x-ui owns actual inbound runtime configuration and Xray clients.
agent/jboard-agent is a read-only sidecar for latency, route trace, and optional Xray access log telemetry.

Do not add a new node control plane or Xray process manager unless the user explicitly changes the product direction.

Next.js Work

Before editing App Router files, route handlers, server actions, metadata, or caching behavior, read the relevant docs from node_modules/next/dist/docs/ for the installed Next.js version.

Common areas to check:

App Router file conventions.
Route Handler request/response behavior.
Server Actions and use server requirements.
Caching, revalidatePath, and dynamic rendering rules.

Version And Release Policy

Panel and Agent versions are not forced to move together.

Website/admin/UI/docs/server-only changes can be committed and pushed to main without creating a GitHub Release.
Only create a new Agent tag and GitHub Release when Agent code, Agent install/upgrade behavior, or Agent release artifacts change.
Agent releases must include jboard-agent-linux-amd64, jboard-agent-linux-arm64, and SHA256SUMS.
Agent runtime version is in agent/jboard-agent/cmd/agent/main.go.
Agent build version is in agent/jboard-agent/Makefile.
Panel package version is in package.json and does not need to match the Agent version.

Read the full file on GitHub · 59 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 · 59 lines · 669 tokens per session scan A f9fec4af6b6c

Subscribe to this mod's changes

J-Board AGENTS.md is an instructions file published in the GitHub repository JetSprow/J-Board (113 stars, last pushed 6mo ago), licensed MIT. It adds 669 tokens to every session, about $0.0027 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.

J-Board AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
J-Board AGENTS.mdJetSprow/J-Board	Instructions file	113	6mo ago	MIT	A	669	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

J-Board: Instructions file for Codex