ai-engineering-toolkit

ai-engineering-toolkit is a skill for Claude Code, Codex from henryalouf/ruflow. It costs 47 tokens per session (1,383 once invoked), scanned A, a copy of ai-engineering-toolkit, MIT.

A collection of six structured workflows for AI engineering, including prompt evaluation, context budgeting, RAG design, agent security audits, evaluation harnesses, and product planning.

In plain words
What is it for?
Use it to review prompts, plan retrieval systems, allocate context, audit agent security, build LLM evaluations, and assess AI product ideas.
Why use it?
It replaces ad-hoc AI advice with repeatable checklists, scoring, and decision steps that teams can use consistently.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths; mentions Claude Code; installed under .agents/ (shared by several agents).

Good fit Use it to review prompts, plan retrieval systems, allocate context, audit agent security, build LLM evaluations, and assess AI product ideas.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/henryalouf/ruflow/ai-engineering-toolkit
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add henryalouf/ruflow --skill ai-engineering-toolkit
Clone the repo
git clone --depth 1 https://github.com/henryalouf/ruflow

Made for: Claude Code, Codex.

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 ai-engineering-toolkit

README.md
[![agentmods](https://agentmods.dev/badge/skills/henryalouf/ruflow/ai-engineering-toolkit/github.svg)](https://agentmods.dev/skills/henryalouf/ruflow/ai-engineering-toolkit)
Your own site
<a href="https://agentmods.dev/skills/henryalouf/ruflow/ai-engineering-toolkit"><img src="https://agentmods.dev/badge/skills/henryalouf/ruflow/ai-engineering-toolkit/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 ai-engineering-toolkit

Your own site · 80×15
<a href="https://agentmods.dev/skills/henryalouf/ruflow/ai-engineering-toolkit"><img src="https://agentmods.dev/badge/skills/henryalouf/ruflow/ai-engineering-toolkit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,383 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 86% copy Near-identical to another mod 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 $0.00047 $0.01383
Opus 5 $0.00023 $0.00691
Sonnet 5 $0.00009 $0.00277
Haiku 4.5 $0.00005 $0.00138

Measured 6d ago against content hash 5398be0fcc81, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

ai-engineering-toolkit 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.

Origin

This is a copy

86% identical to ai-engineering-toolkit — 24 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/ai-engineering-toolkit/SKILL.md · 108 lines

How it starts

The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AI Engineering Toolkit

Overview

A collection of 6 structured, expert-level workflows that turn your AI coding assistant into a senior AI engineering partner. Each skill encodes a repeatable methodology — not just "ask AI to help," but a step-by-step decision framework with quantitative scoring, checklists, and decision trees.

The key difference from ad-hoc AI assistance: every workflow produces consistent, reproducible results regardless of who runs it or when. You can use the scoring systems as team baselines and write them into CI/CD pipelines.

When to Use This Skill

  • Use when evaluating or optimizing LLM system prompts before production deployment
  • Use when designing a RAG pipeline and need structured architecture decisions (not just boilerplate code)
  • Use when planning token budget allocation across context window zones
  • Use when running pre-launch security audits on AI agents
  • Use when building evaluation frameworks for LLM applications
  • Use when thinking through product strategy before writing code

How It Works

Skill 1: Prompt Evaluator

Scores prompts across 8 dimensions (Clarity, Specificity, Completeness, Conciseness, Structure, Grounding, Safety, Robustness) on a 1-10 scale with weighted aggregation to a 0-100 score. Identifies the 3 weakest dimensions, generates targeted rewrites, and re-evaluates. Supports single prompt, A/B comparison, and batch evaluation modes.

Skill 2: Context Budget Planner

Analyzes token distribution across 5 context zones (System, Few-shot, User input, Retrieval, Output) and produces an optimized allocation plan. Includes a compression strategy decision tree for each zone. Common finding: output zone squeezed to under 6% — this skill catches that before truncation happens.

Skill 3: RAG Pipeline Architect

Walks through a complete architecture decision tree: document format → parsing strategy → chunking approach (fixed/semantic/recursive) → embedding model selection → retrieval method (vector/keyword/hybrid) → evaluation metrics (Faithfulness, Relevancy, Context Precision). Covers Naive RAG, Advanced RAG, and Modular RAG patterns.

Read the full file on GitHub · 108 lines

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 · 108 lines · 47 tokens per session scan A 5398be0fcc81

Subscribe to this mod's changes

ai-engineering-toolkit is a skill published in the GitHub repository henryalouf/ruflow (128 stars, last pushed 3mo ago), licensed MIT. It adds 47 tokens to every session and 1,383 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to ai-engineering-toolkit, differing in 24 lines, and is treated as a copy.

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