jebat-core: Instructions file for Codex

AGENTS.md

jebat-core AGENTS.md is an instructions file for Codex, OpenCode from nusabyte-my/jebat-core. It costs 564 tokens per session, scanned A, original, no licence file.

A project instruction file for the jebat-core codebase. AGENTS.md files tell coding agents which files to read first, how to work, and which information is authoritative.

In plain words
What is it for?
It is for guiding agent work in the nusabyte-my/jebat-core repository, including workspace identity, startup files, operating defaults and the source of truth.
Why use it?
It gives the agent project-specific context before it changes code, reducing the chance of following the wrong rules or using outdated sources.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is nusabyte-my/jebat-core's own configuration. It tells Codex and OpenCode how to work on jebat-core itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything jebat-core configures →

Reuse

Borrowing it

Nothing to install: this file belongs to nusabyte-my/jebat-core. 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/nusabyte-my/jebat-core/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/nusabyte-my/jebat-core

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 jebat-core AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/nusabyte-my/jebat-core/agents-md/github.svg)](https://agentmods.dev/instructions/nusabyte-my/jebat-core/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/nusabyte-my/jebat-core/agents-md"><img src="https://agentmods.dev/badge/instructions/nusabyte-my/jebat-core/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.

agentmods 80×15 button for jebat-core AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/nusabyte-my/jebat-core/agents-md"><img src="https://agentmods.dev/badge/instructions/nusabyte-my/jebat-core/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 564 This file is loaded in full into every session.
When invoked 564 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 unknown 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 5.1 $0.00564 $0.00564
Opus 5.5 $0.00226 $0.00226
Sonnet 5.5 $0.00113 $0.00113
Haiku 4.5 $0.00056 $0.00056

Measured 1mo ago against content hash 066cbe46efda, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

jebat-core 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 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.

AGENTS.md · 52 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 1mo ago Changed · +5 lines · +151 tokens per session 066cbe46efda
  2. 2mo ago First seen · 47 lines · 413 tokens per session scan A 2ded25b9d527

Subscribe to this mod's changes

jebat-core AGENTS.md is an instructions file published in the GitHub repository nusabyte-my/jebat-core (5 stars, last pushed 7d ago), with no licence file. It adds 564 tokens to every session, about $0.0023 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 2026-08-31.

Related

jebat-core AGENTS.md compared with instructions from other repositories

jebat-core AGENTS.md next to 6 instructions from other repositories
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jebat-core AGENTS.mdnusabyte-my/jebat-coreInstructions file57d agononeA564Codex, OpenCode
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vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode