langchain4j-cdi: Instructions file for Codex

AGENTS.md

langchain4j-cdi AGENTS.md is an instructions file for Codex, OpenCode from langchain4j/langchain4j-cdi. It costs 109 tokens per session, scanned A, original, Apache-2.0.

Repository instructions for the LangChain4j CDI project that explain when to consult its wiki and when to suggest updating it.

In plain words
What is it for?
Use them at the start of tasks to check relevant wiki pages, and after substantial work to identify durable knowledge worth documenting.
Why use it?
They help the agent use relevant project knowledge without reading the entire wiki and preserve useful decisions after a task.

Instructions file for CodexOpenCode

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

This is langchain4j/langchain4j-cdi's own configuration. It tells Codex and OpenCode how to work on langchain4j-cdi 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 langchain4j-cdi configures →

Reuse

Borrowing it

Nothing to install: this file belongs to langchain4j/langchain4j-cdi. 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/langchain4j/langchain4j-cdi/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/langchain4j/langchain4j-cdi

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 langchain4j-cdi AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/langchain4j/langchain4j-cdi/agents-md.svg)](https://agentmods.dev/instructions/langchain4j/langchain4j-cdi/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/langchain4j/langchain4j-cdi/agents-md"><img src="https://agentmods.dev/badge/instructions/langchain4j/langchain4j-cdi/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 109 This file is loaded in full into every session.
When invoked 109 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00109 $0.00109
Opus 5 $0.00055 $0.00055
Sonnet 5 $0.00022 $0.00022
Haiku 4.5 $0.00011 $0.00011

Measured 6d ago against content hash 131cc32bbf42, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

langchain4j-cdi 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 6d 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 · 13 lines

What it actually says

Agent Rules

Start with the wiki

At the start of each task, check _context/wiki/index.md to decide whether wiki context is needed before acting. Don't read the wiki in full. Use the index and follow links only when they are relevant to the task.

Update the wiki

After completing a task, offer to update the wiki if the task yielded durable knowledge that could benefit future work, then wait for user approval. This includes new processes, architecture decisions, or insights that go beyond the immediate task.

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. 6d ago First seen · 13 lines · 109 tokens per session scan A 131cc32bbf42

Subscribe to this mod's changes

langchain4j-cdi AGENTS.md is an instructions file published in the GitHub repository langchain4j/langchain4j-cdi (17 stars, last pushed 5d ago), licensed Apache-2.0. It adds 109 tokens to every session, about $0.0005 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 2026-09-01.

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