n-n-code/n-n-code-skills · .agents/skills/prompt-engineering/SKILL.md

prompt-engineering skillA

Name: prompt-engineering
Author: n-n-code

prompt-engineering is agent-read markdown (skill) from n-n-code/n-n-code-skills: Prompt engineering workflow for designing, rewriting, debugging, evaluating, and optimizing LLM prompts, system prompts, developer prompts, few-shot examples, structured-output instructions, tool-use prompts, and prompt eval cases. Use when prompt behavior, reliability, safety, cost, latency, or model fit is the main task. Do not use for generic prose editing, model selection alone, or ordinary documentation work with no prompt artifact..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version

mdr add n-n-code/n-n-code-skills/prompt-engineering@git:20260905.4e6a0aa

Exact content

mdr add n-n-code/n-n-code-skills/prompt-engineering@sha256:53ed2219041d75d4

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

[![mdr](https://markdownregistry.com/badge/art_jwaa7pjpfmxkwbxm.svg)](https://markdownregistry.com/a/art_jwaa7pjpfmxkwbxm)

0 badge views in 30 days

Versions

version	committed	commit	size	audit
git:20260905.4e6a0aa latest	2026-09-05	4e6a0aa	9,417 B	A	view · diff
git:20260904.6c1f699	2026-09-04	6c1f699	9,415 B	A	view · diff
git:20260828.7779331	2026-08-28	7779331	8,229 B	A	view · diff
git:20260505.e0582e6	2026-05-05	e0582e6	8,181 B	A	view · diff
git:20260503.9077571	2026-05-03	9077571	6,355 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Deterministic, no model, same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (9417 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 prompt-injection phrasing
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

Source

GitHub

n-n-code/n-n-code-skills · 4 stars · license MIT · pushed 2026-09-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_jwaa7pjpfmxkwbxm
GET https://markdownregistry.com/api/v1/resolve?ref=n-n-code/n-n-code-skills/prompt-engineering
GET https://markdownregistry.com/api/v1/blob/53ed2219041d75d4b4914e858628639714b0cfec8eff1a812ec0fcb52bb5c4e3