toBeBetterJavaer: Instructions file for Codex

AGENTS.md

toBeBetterJavaer AGENTS.md is an instructions file for Codex, OpenCode from itwanger/toBeBetterJavaer. It costs 867 tokens per session, scanned A, original, no licence file.

Repository instructions for a Java programming learning project, covering tool permissions, web-page retrieval, and image generation.

In plain words
What is it for?
Use them when editing the project, fetching webpage content, or generating images for articles.
Why use it?
They set expectations for how an agent should work in that repository and what tools it may use.

Instructions file for CodexOpenCode

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

This is itwanger/toBeBetterJavaer's own configuration. It tells Codex and OpenCode how to work on toBeBetterJavaer 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 toBeBetterJavaer configures →

Reuse

Borrowing it

Nothing to install: this file belongs to itwanger/toBeBetterJavaer. 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/itwanger/toBeBetterJavaer/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/itwanger/toBeBetterJavaer

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 toBeBetterJavaer AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/itwanger/tobebetterjavaer/agents-md/github.svg)](https://agentmods.dev/instructions/itwanger/tobebetterjavaer/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/itwanger/tobebetterjavaer/agents-md"><img src="https://agentmods.dev/badge/instructions/itwanger/tobebetterjavaer/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 toBeBetterJavaer AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/itwanger/tobebetterjavaer/agents-md"><img src="https://agentmods.dev/badge/instructions/itwanger/tobebetterjavaer/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 867 This file is loaded in full into every session.
When invoked 867 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 $0.00867 $0.00867
Opus 5.5 $0.00347 $0.00347
Sonnet 5.5 $0.00173 $0.00173
Haiku 4.5 $0.00087 $0.00087

Measured yesterday against content hash 320fb83ff48c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

toBeBetterJavaer 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 yesterday.

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 · 53 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. yesterday Changed · +9 lines · +249 tokens per session 320fb83ff48c
  2. 3d ago Changed · +8 lines · +259 tokens per session 6c6bc00fc353
  3. 2mo ago Changed · +5 lines · +53 tokens per session b36a6ab6a6ea
  4. 2mo ago First seen · 31 lines · 306 tokens per session scan A 3177d5314628

Subscribe to this mod's changes

toBeBetterJavaer AGENTS.md is an instructions file published in the GitHub repository itwanger/toBeBetterJavaer (17,826 stars, last pushed yesterday), with no licence file. It adds 867 tokens to every session, about $0.0035 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.

Related

toBeBetterJavaer AGENTS.md compared with instructions from other repositories

toBeBetterJavaer AGENTS.md next to 6 instructions from other repositories
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toBeBetterJavaer AGENTS.mditwanger/toBeBetterJavaerInstructions file18kyesterdaynoneA867Codex, OpenCode
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