prompt-tuning SKILL.md skillA

prompt-tuning from hiroro-work/claude-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add hiroro-work/claude-plugins/prompt-tuning@git:20261001.c13f320

Pins git:20261001.c13f320 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
hiroro-work/claude-plugins
Path
.claude/skills/prompt-tuning/SKILL.md
Versions recorded
5
Latest version
git:20261001.c13f320, committed Oct 1, 2026
First version recorded
May 15, 2026
Size
41,120 bytes
Repository stars
47
License
none declared

Methodology for iteratively improving agent-facing instructions (skills / slash commands / CLAUDE.md / code-gen prompts) by having a bias-free executor run them and evaluating two-sidedly (executor self-report + instruction-side metrics) until improvements plateau. Use after creating or revising a prompt or skill.

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

# Empirical Prompt Tuning

The author of a prompt cannot judge its quality. The clearer the writer thinks something is, the more likely another agent will stumble on it. The core of this skill is to **have a bias-free executor actually run the instruction, evaluate it two-sidedly, and iterate**. Do not stop until improvements plateau.

## When to use

- Right after creating or substantially revising a skill / slash command / task prompt
- When an agent does not behave as expected and you want to attribute the cause to ambiguity on the instruction side
- When hardening high-importance instructions (frequently used skills, automation-core prompts)

When not to use:
- One-off throwaway prompts (evaluation cost does not pay off)
- When the goal is not to improve success rate but merely to reflect the writer's subjective preferences

## Workflow

0. **Iteration 0 — description / body consistency check** (static, no dispatch needed)
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add hiroro-work/claude-plugins/prompt-tuning@sha256:605f34b36a220ccf

The line at the top of this page pins the label git:20261001.c13f320, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_ftrjny64mwylxbnl.svg)](https://markdownregistry.com/a/art_ftrjny64mwylxbnl)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between May 15, 2026 and Oct 1, 2026, about one every 35 days.

versioncommittedcommitsizeaudit
git:20261001.c13f320 latest2026-10-01 c13f320 41,120 BA view · diff
git:20260930.c4b8cab2026-09-30 c4b8cab 40,954 BA view · diff
git:20260818.9421b022026-08-18 9421b02 40,716 BA view · diff
git:20260522.cdbbe7c2026-05-22 cdbbe7c 45,220 BA view · diff
git:20260515.666e1882026-05-15 666e188 42,271 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the 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 (41120 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

hiroro-work/claude-plugins · 47 stars · license none declared · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ftrjny64mwylxbnl
GET https://markdownregistry.com/api/v1/resolve?ref=hiroro-work/claude-plugins/prompt-tuning
GET https://markdownregistry.com/api/v1/blob/605f34b36a220ccf9e36e064167297f0aae1a1e8dadfc4006bf85e77f05e6cb5

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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