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.
curl -O https://raw.githubusercontent.com/langchain4j/langchain4j-cdi/main/CLAUDE.mdgit clone --depth 1 https://github.com/langchain4j/langchain4j-cdiWrote 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.
[](https://agentmods.dev/instructions/langchain4j/langchain4j-cdi/claude-md)<a href="https://agentmods.dev/instructions/langchain4j/langchain4j-cdi/claude-md"><img src="https://agentmods.dev/badge/instructions/langchain4j/langchain4j-cdi/claude-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.
<a href="https://agentmods.dev/instructions/langchain4j/langchain4j-cdi/claude-md"><img src="https://agentmods.dev/badge/instructions/langchain4j/langchain4j-cdi/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.03884 | $0.03884 |
| Opus 5 | $0.01942 | $0.01942 |
| Sonnet 5 | $0.00777 | $0.00777 |
| Haiku 4.5 | $0.00388 | $0.00388 |
Grade A, and why
langchain4j-cdi CLAUDE.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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 344 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
LangChain4j CDI is a CDI (Contexts and Dependency Injection) extension that integrates the LangChain4j AI framework with Jakarta EE and Eclipse MicroProfile applications. It enables developers to inject AI services into CDI-managed beans with enterprise features like fault tolerance, telemetry, and external configuration.
Build System
CRITICAL: Use mvn command only - Never use ./mvnw or mvnw wrappers, as per user's global preferences.
Java Version Requirements:
- Runtime target: Java 17
- Build requirement: Java 21+ (some integration tests require Java 21+)
Payara Exclusion: Always exclude the Payara example module due to network connectivity issues:
-pl '!examples/payara-car-booking'
Essential Build Commands
Build and compile (skip tests):
mvn clean install -DskipTests -pl '!examples/payara-car-booking'
Full build with tests:
mvn clean verify -pl '!examples/payara-car-booking'
Run unit tests only (exclude integration tests):
mvn test -pl '!examples/payara-car-booking,!langchain4j-cdi-integration-tests'
Run all tests including integration:
mvn test -pl '!examples/payara-car-booking'
Check and apply code formatting:
mvn spotless:check -pl '!examples/payara-car-booking'
mvn spotless:apply -pl '!examples/payara-car-booking'
Module Architecture
Core Modules
langchain4j-cdi-core: Foundation of the CDI integration
@RegisterAIServicestereotype annotation for declaring AI service interfacesCommonAIServiceCreatorutility for building AI service proxies from CDI beans- 11 per-topology agent stereotype annotations (
@RegisterSimpleAgent,@RegisterSequenceAgent,@RegisterLoopAgent,@RegisterParallelAgent,@RegisterParallelMapperAgent,@RegisterConditionalAgent,@RegisterSupervisorAgent,@RegisterPlannerAgent,@RegisterA2AAgent,@RegisterMcpClientAgent,@RegisterHumanInTheLoopAgent) CommonAgentCreatorutility for building agent proxies across all 11 topologiesAgentTopologyTypeenum defining available orchestration patternsA2AAgentBuilderSPI for pluggable A2A topology implementation (loaded viaServiceLoader)LLMConfigandLLMConfigProviderconfiguration API and SPICommonLLMPluginCreatorfor creating LangChain4j components via reflectionExpressionResolverSPI for pluggable annotation attribute expression resolution
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.
- 7d ago First seen · 344 lines · 3,884 tokens per session scan A 09fc0d0ec220
langchain4j-cdi CLAUDE.md is an instructions file published in the GitHub repository langchain4j/langchain4j-cdi (17 stars, last pushed yesterday), licensed Apache-2.0. It adds 3,884 tokens to every session, about $0.0194 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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next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
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vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.