ai-prompt-engineering-expert SKILL.md skillB
ai-prompt-engineering-expert from roedyrustam/vibes-plug is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add roedyrustam/vibes-plug/ai-prompt-engineering-expert@v4.2.1Pins v4.2.1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- roedyrustam/vibes-plug
- Path
skills/ai-prompt-engineering-expert/SKILL.md- Versions recorded
- 10
- Latest version
- v4.2.1, committed Oct 8, 2026
- First version recorded
- Aug 13, 2026
- Size
- 8,982 bytes
- Repository stars
- 122
- License
- MIT
Expert guide for Prompt Engineering, Chain-of-Thought, few-shot prompting, structured output, prompt injection defense, and automated AI evaluations & regression benchmarking (Promptfoo, DeepEval) / Panduan ahli rekayasa prompt dan evaluasi otomatis AI.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# AI Prompt Engineering & Automated Evals Expert (2026 Edition)
[English](#english) | [Bahasa Indonesia](#bahasa-indonesia)
---
<a name="english"></a>
## English
### Description
Production-grade guide covering prompt engineering and automated evaluation (Evals). Teaches how to write, version, defend, benchmark, and regression-test LLM prompts and agent workflows using **Promptfoo**, **DeepEval**, and structured JSON schemas.
### Trigger Conditions
- Writing or refactoring system prompts for autonomous AI agents.
- Enforcing strict structured output (JSON Schema / Zod).
- Defending against Prompt Injection or jailbreak attacks.
- Setting up automated regression testing and CI/CD quality gates for LLMs.
- Benchmarking RAG output quality (Faithfulness, Relevance, Hallucinations).
---
### Part 1: Prompt Construction & Defense
#### 1. Structured Output (Schema-First)
Never rely on prompt instructions alone to get JSON. Always use native Tool Calling / Structured Outputs with JSON Schema or Zod:
```typescript
import { z } from 'zod';
export const UserAnalysisSchema = z.object({
sentiment: z.enum(['positive', 'neutral', 'negative']),
confidence: z.number().min(0).max(1),
…Read the whole file at its exact version.
How to install
mdr add roedyrustam/vibes-plug/ai-prompt-engineering-expert@sha256:3a9be980a9ddbf15The line at the top of this page pins the label v4.2.1, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_fgdmjuujxiw2wmdm)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 10 versions of this file, between Aug 13, 2026 and Oct 8, 2026, about one every 6 days. Its first recorded version is graded A and its latest B.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v4.2.1 latest | 2026-10-08 | e8e3cf1 | 8,982 B | B | view · diff |
| v4.2.0 | 2026-10-03 | d8cca2a | 8,982 B | B | view · diff |
| v4.1.0 | 2026-10-03 | 8bb822a | 8,982 B | B | view · diff |
| v4.0.0 | 2026-09-30 | 7be209a | 8,983 B | B | view · diff |
| v3.0.0 | 2026-09-13 | 528c014 | 8,983 B | B | view · diff |
| v3.0.0 | 2026-09-13 | 4cedcda | 8,781 B | B | view · diff |
| git:20260911.16cf003 | 2026-09-11 | 16cf003 | 5,749 B | B | view · diff |
| git:20260907.57a4b90 | 2026-09-07 | 57a4b90 | 5,402 B | A | view · diff |
| git:20260816.d23736e | 2026-08-16 | d23736e | 5,406 B | A | view · diff |
| git:20260813.0bbd192 | 2026-08-13 | 0bbd192 | 5,404 B | A | view |
Audit of the latest version
- fail: No prompt-injection phrasing (matched: Ignore previous rules)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8982 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
roedyrustam/vibes-plug · 122 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_fgdmjuujxiw2wmdm GET https://markdownregistry.com/api/v1/resolve?ref=roedyrustam/vibes-plug/ai-prompt-engineering-expert GET https://markdownregistry.com/api/v1/blob/3a9be980a9ddbf158e7628cf19a7aa334daa4b9c099f66e9121107dc227235a3
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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