borghei/claude-skills · engineering/prompt-engineer-toolkit/SKILL.md

prompt-engineer-toolkit skillA

prompt-engineer-toolkit is agent-read markdown (skill) from borghei/claude-skills: Prompt engineering frameworks for building, testing, versioning, and evaluating prompts: chain-of-thought, few-shot, regression testing, and rubrics. Use when designing production prompts, running A/B tests, or building prompt libraries..

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 borghei/claude-skills/prompt-engineer-toolkit@v1.1.0
Exact content
mdr add borghei/claude-skills/prompt-engineer-toolkit@sha256:0d83a062befb2a27

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 badge

[![mdr](https://markdownregistry.com/badge/art_r2ghe4mvehmrludm.svg)](https://markdownregistry.com/a/art_r2ghe4mvehmrludm)

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Versions

versioncommittedcommitsizeaudit
v1.1.0 latest2026-06-22 65b93aa 6,512 BA view · diff
v1.1.02026-06-17 8980a67 5,865 BA view · diff
v1.0.02026-06-17 0c19211 19,484 BA view · diff
v1.0.02026-03-30 6b5a5d8 19,620 BA view · diff
v1.0.02026-03-21 36e3f67 19,609 BA 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 (6512 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

borghei/claude-skills · 778 stars · license NOASSERTION · pushed 2026-08-12 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_r2ghe4mvehmrludm
GET https://markdownregistry.com/api/v1/resolve?ref=borghei/claude-skills/prompt-engineer-toolkit
GET https://markdownregistry.com/api/v1/blob/0d83a062befb2a27647b1106106b90b55f6d22e2f93753d9e9e77aed621f55d0

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.