Langchain4j RAG Implementation Patterns
giuseppe-trisciuoglio/developer-kit
Provides Retrieval-Augmented Generation (RAG) implementation patterns with LangChain4j for Java.
A skill your agent uses when reviewing, designing, or modifying Java enterprise systems that use GenAI, LLMs, AI-assisted coding, RAG, AI agents, generated code, generated dependencies, prompt…
$ npx skills add jabrena/plinth --skill 813-regulations-iso-42001 -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install jabrena/plinth 813-regulations-iso-42001 --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/jabrena/plinth.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/813-regulations-iso-42001 .claude/skills/813-regulations-iso-42001 && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "813-regulations-iso-42001" agent skill from https://github.com/jabrena/plinth/tree/main/skills/813-regulations-iso-42001 into .claude/skills/813-regulations-iso-42001/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "813-regulations-iso-42001", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/jabrena/plinth/tree/main/skills/813-regulations-iso-42001Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add jabrena/plinth --skill 813-regulations-iso-42001 -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install jabrena/plinth 813-regulations-iso-42001 --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jabrena/plinth.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/813-regulations-iso-42001 .agents/skills/813-regulations-iso-42001 && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "813-regulations-iso-42001" agent skill from https://github.com/jabrena/plinth/tree/main/skills/813-regulations-iso-42001 into .agents/skills/813-regulations-iso-42001/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "813-regulations-iso-42001", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add jabrena/plinth --skill 813-regulations-iso-42001 -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install jabrena/plinth 813-regulations-iso-42001 --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jabrena/plinth.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/813-regulations-iso-42001 .cursor/skills/813-regulations-iso-42001 && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "813-regulations-iso-42001" agent skill from https://github.com/jabrena/plinth/tree/main/skills/813-regulations-iso-42001 into .cursor/skills/813-regulations-iso-42001/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "813-regulations-iso-42001", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/jabrena/plinth.git --path skills/813-regulations-iso-42001--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add jabrena/plinth --skill 813-regulations-iso-42001 -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install jabrena/plinth 813-regulations-iso-42001 --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jabrena/plinth.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/813-regulations-iso-42001 .gemini/skills/813-regulations-iso-42001 && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "813-regulations-iso-42001" agent skill from https://github.com/jabrena/plinth/tree/main/skills/813-regulations-iso-42001 into .gemini/skills/813-regulations-iso-42001/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "813-regulations-iso-42001", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install jabrena/plinth 813-regulations-iso-42001Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add jabrena/plinth --skill 813-regulations-iso-42001 -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/jabrena/plinth.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/813-regulations-iso-42001 .github/skills/813-regulations-iso-42001 && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "813-regulations-iso-42001" agent skill from https://github.com/jabrena/plinth/tree/main/skills/813-regulations-iso-42001 into .github/skills/813-regulations-iso-42001/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "813-regulations-iso-42001", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add jabrena/plinth --skill 813-regulations-iso-42001 -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install jabrena/plinth 813-regulations-iso-42001 --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jabrena/plinth.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/813-regulations-iso-42001 .opencode/skills/813-regulations-iso-42001 && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "813-regulations-iso-42001" agent skill from https://github.com/jabrena/plinth/tree/main/skills/813-regulations-iso-42001 into .opencode/skills/813-regulations-iso-42001/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "813-regulations-iso-42001", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
813-regulations-iso-42001A skill your agent uses when reviewing, designing, or modifying Java enterprise systems that use GenAI, LLMs, AI-assisted coding, RAG, AI agents, generated code, generated dependencies, prompt…
813 Regulations Iso 42001 is an agent skill from jabrena/plinth. Use when reviewing, designing, or modifying Java enterprise systems that use GenAI, LLMs, AI-assisted coding, RAG, AI agents, generated code, generated dependencies, prompt workflows, external model providers, or AI-enabled business logic and need ISO/IEC 42001 AI management system-aware engineering guidance. Part of Plinth Toolkit
Its SKILL.md is about 3.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 8 other files, including reference files and assets (for example `assets/questions/813-iso-42001-engineering-review-questionnaire.md`, `assets/reports/813-iso-42001-engineering-review-report-template.md` and `references/813-regulations-iso-42001-chapters-summary.md`).
It sits in AI & LLM Engineering, covering Retrieval-augmented generation. It works with Java. The repository describes itself as: Plinth is an AI-native engineering toolkit for modern Java enterprise SDLC, built around reusable Commands, Agents, Skills, and MCP Servers. The licence is Apache-2.0.
Read from SKILL.md and the folder at commit dca88dc. It shows what the files ask for, not the result of running them.
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Links to these hosts (documentation or services it may open):
iso.orglearn.microsoft.comFrom URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
813 Regulations Iso 42001 loads about 3.2k tokens when it runs, and up to ~9.8k if it reads all its reference files. Until then it costs about 90 tokens; SKILL.md has 1,402 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from jabrena/plinth at commit dca88dc, republished under its Apache-2.0 licence (© jabrena). 1,402 words, ~3,225 tokens.
.claude/skills/813-regulations-iso-42001/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.Use this Skill to review Java enterprise applications, delivery pipelines, AI-assisted development workflows, LLM integrations, RAG systems, AI agents, generated code, generated dependencies, external model-provider usage, prompt handling, and AI-enabled business logic through an ISO/IEC 42001 AI management system lens.
Apply this Skill to determine what engineering controls, evidence, lifecycle governance, risk treatment, monitoring, and owner handoffs are needed before GenAI-assisted Java work is merged, released, connected to enterprise systems, or relied on for business behavior.
This Skill is not legal advice, certification advice, audit advice, an audit conclusion, or a final conformity decision. It helps Java engineers, architects, tech leads, platform teams, security teams, AI governance reviewers, product teams, and reviewers identify when ISO/IEC 42001 AI management system concerns may apply and how to translate them into engineering controls such as AI inventory records, risk treatment, prompt and data governance, secure generated-code review, dependency provenance, model-provider boundaries, monitoring, corrective action, and qualified owner escalation.
The purpose of this Skill is to increase awareness of potential gaps in GenAI Java delivery and create reviewable engineering evidence for qualified owners. The response produced by this Skill does not represent legal advice, certification readiness, audit findings, compliance approval, or final conformity with ISO/IEC 42001.
The main question is:
What should a Java team build, review, document, and escalate so GenAI development and AI-enabled Java systems are governed as part of an AI management system?
Source provenance: ISO/IEC 42001 public overview material and issue #939 were reviewed while authoring the bundled references. Official source references include:
Do not fetch or ingest external regulatory, standard, certification, or audit web pages at runtime. Use the bundled references and escalate interpretation, certification, audit, legal, compliance, and conformity questions to qualified owners.
ISO/IEC 42001 summary reference: ISO/IEC 42001 AI management system summary.
Java engineering examples reference: ISO/IEC 42001 GenAI Java engineering examples.
Questionnaire asset: ISO/IEC 42001 engineering review questionnaire.
Report template asset: ISO/IEC 42001 engineering review report template.
This Skill applies to:
Treat certification scope, conformity, audit conclusions, legal obligations, regulatory applicability, official interpretation, and final risk acceptance as qualified owner decisions.
Engineering teams should still create evidence that makes those decisions reviewable:
Translate ISO/IEC 42001 AI management system concerns into engineering controls for GenAI Java development. Do not provide legal advice, certification advice, audit conclusions, conformity decisions, or replace qualified owner review.
Read references/813-regulations-iso-42001-chapters-summary.md, references/813-regulations-iso-42001-engineering-examples.md, assets/questions/813-iso-42001-engineering-review-questionnaire.md, and assets/reports/813-iso-42001-engineering-review-report-template.md in that order. Use the summary for AI management system scope, context, leadership, planning, support, operation, evaluation, improvement, lifecycle governance, risk treatment, and owner-handoff context. Use the engineering examples for Java control patterns such as AI inventory, prompt and data boundaries, generated-code review, dependency provenance, RAG source governance, AI-agent controls, bias review, monitoring, incident handling, and corrective action. Use the questionnaire to classify scope and evidence gaps before producing the report. Do not start implementation review until the summary, examples reference, questionnaire rules, and report template are understood.
Use assets/questions/813-iso-42001-engineering-review-questionnaire.md as a checklist against trusted local project evidence and maintainer-approved sanitized facts. Identify the Java system, GenAI capability, AI-assisted development workflow, generated artifacts, model provider, prompts, retrieval sources, data classes, dependencies, business logic, environments, users, lifecycle stage, system owner, data owner, risk owner, security owner, privacy owner, compliance owner, product owner, platform owner, and release owner. Mark unknowns as evidence gaps and escalate missing ownership before release recommendations.
Review Java code, configuration, tests, build files, Maven dependencies, SBOM or dependency evidence, prompts, RAG source registries, model version records, generated outputs, AI-agent tool policies, CI/CD workflows, deployment records, monitoring, incident records, and owner approvals. Check for gaps between claimed AI management controls and reviewable evidence.
Map hallucinated code, insecure generated implementation, generated dependency and supply-chain contamination, IP leakage, confidentiality breach, regulatory non-compliance risk, and biased generated business logic to concrete controls: source verification, human review, tests, static analysis, secure coding review, dependency policy gates, approved model/provider routes, data minimization, redaction, access control, retrieval governance, bias and impact testing, monitoring, incident response, rollback, disablement, corrective action, and owner escalation.
Use assets/reports/813-iso-42001-engineering-review-report-template.md to produce a concise engineering review with scope, evidence reviewed, ISO/IEC 42001 AI management system risk signals, GenAI Java risk findings, potential management-system nonconformity signals, evidence gaps, recommended controls, owner handoffs, residual risks, release readiness notes, validation steps, and action plan. State explicitly that legal advice, certification advice, audit conclusions, official interpretation, final risk acceptance, and final conformity decisions require qualified owner review.
For detailed guidance, examples, and constraints, see:
© jabrena, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 4 other files (references, assets) in skills/813-regulations-iso-42001 of jabrena/plinth.
Open the folder on GitHubat commit dca88dc
813 Regulations Iso 42001 next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| 813 Regulations Iso 42001 this skilljabrena/plinth | 447 | — | ~3.2k | Automated safety check: Pass | Apache-2.0 | |
| Langchain4j RAG Implementation Patternsgiuseppe-trisciuoglio/developer-kit | 357 | — | ~3.3k | Automated safety check: Notes | MIT | |
| DBoracle/skills | 877 | — | ~1.4k | Automated safety check: Pass | UPL-1.0 | |
| AWS SDK Java V2 Bedrockgiuseppe-trisciuoglio/developer-kit | 357 | — | ~3.2k | Automated safety check: Notes | MIT | |
| Qdrant Advisorqdrant/skills | 254 | — | ~1.7k | Automated safety check: Pass | Apache-2.0 | |
| Chroma Vector DatabaseOrchestra-Research/AI-Research-SKILLs | 13k | 7 repos | ~2.3k | Automated safety check: Pass | MIT |
giuseppe-trisciuoglio/developer-kit
Provides Retrieval-Augmented Generation (RAG) implementation patterns with LangChain4j for Java.
oracle/skills
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giuseppe-trisciuoglio/developer-kit
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qdrant/skills
Diagnose, troubleshoot, and advise on any Qdrant deployment by loading the latest official Qdrant skills live from skills.qdrant.tech.
Orchestra-Research/AI-Research-SKILLs
Shows how to store documents and embeddings in Chroma, query them by similarity with metadata filters, and persist them to disk for RAG and semantic search projects.
itwanger/toBeBetterJavaer
AI 类文章和项目教程的撰写与重构优化。支持新写和重构优化(结合最新源码重写已有文章)两种输入模式,四种风格:安装教程、产品评测、面试八股、深度拆解。覆盖 AI Coding 工具实测、AI 开发框架应用、大模型测评、Agent/Skills/RAG 技术讲解,以及 JobClaw 等实战项目的教程。
jabrena/plinth
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Works with
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A skill your agent uses when reviewing, designing, or modifying Java enterprise systems that use GenAI, LLMs, AI-assisted coding, RAG, AI agents, generated code, generated dependencies, prompt…. 813 Regulations Iso 42001 is an agent skill from jabrena/plinth. Use when reviewing, designing, or modifying Java enterprise systems that use GenAI, LLMs, AI-assisted coding, RAG, AI agents, generated code, generated dependencies, prompt workflows, external model providers, or AI-enabled business logic and need ISO/IEC 42001 AI management system-aware engineering guidance.
813 Regulations Iso 42001 fits situations like: modifying Java enterprise systems that use GenAI; AI-assisted coding; generated dependencies; prompt workflows.
Run `npx skills add jabrena/plinth --skill 813-regulations-iso-42001 -a claude-code`. Or copy the skill folder (skills/813-regulations-iso-42001 in jabrena/plinth) into .claude/skills/813-regulations-iso-42001 in your project. Claude Code loads it when a task matches its description.
Run `npx skills add jabrena/plinth --skill 813-regulations-iso-42001 -a codex`. Or copy the skill folder (skills/813-regulations-iso-42001 in jabrena/plinth) into .agents/skills/813-regulations-iso-42001 in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jabrena/plinth --skill 813-regulations-iso-42001 -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/813-regulations-iso-42001, .gemini/skills/813-regulations-iso-42001, .github/skills/813-regulations-iso-42001 and .opencode/skills/813-regulations-iso-42001 in your project.
SKILL.md names no scripts, command-line tools or credentials: 813 Regulations Iso 42001 is instructions for the agent only.
SKILL.md names 2 domains. As links in the text: iso.org and learn.microsoft.com. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
813 Regulations Iso 42001 is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
About 3.2k tokens (SKILL.md is roughly 13k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 6.6k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with 813 Regulations Iso 42001: Langchain4j RAG Implementation Patterns (giuseppe-trisciuoglio/developer-kit, 357 stars), DB (oracle/skills, 877 stars), AWS SDK Java V2 Bedrock (giuseppe-trisciuoglio/developer-kit, 357 stars) and Qdrant Advisor (qdrant/skills, 254 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
jabrena (a GitHub user) maintains it in jabrena/plinth, which has 447 GitHub stars. The repository holds 124 skills in this directory. The repository was last updated on October 7, 2026.
Source: jabrena/plinth on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.