chrono-meta/forge-harness · plugins/fh-meta/skills/prompt-regression/SKILL.md

prompt-regression skillA

prompt-regression is agent-read markdown (skill) from chrono-meta/forge-harness: Statically checks harness assets against a known-answer probe set after rule/skill changes — inspects the changed source for the trigger phrases, chain links and gate conditions each probe expects, and reports PASS/FAIL/SKIP per probe. Source inspection only; it does not run live sessions, so it catches assets that no longer SAY the right thing, not models that stop DOING it. Triggers on "prompt regression", "did my changes break anything", "regression check", "test harness changes"..

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 chrono-meta/forge-harness/prompt-regression@git:20260811.eede7ad
Exact content
mdr add chrono-meta/forge-harness/prompt-regression@sha256:1de29bdf11b3df00

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_if2itrmk7x5soyic.svg)](https://markdownregistry.com/a/art_if2itrmk7x5soyic)

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Versions

versioncommittedcommitsizeaudit
git:20260811.eede7ad latest2026-08-11 eede7ad 10,109 BA view · diff
git:20260803.c7547182026-08-03 c754718 6,759 BA view · diff
git:20260610.fa977702026-06-10 fa97770 6,759 BA view · diff
git:20260603.4031ba12026-06-03 4031ba1 6,271 BA view · diff
git:20260528.ba592e22026-05-28 ba592e2 6,030 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 (10109 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

chrono-meta/forge-harness · 14 stars · license MIT · pushed 2026-09-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_if2itrmk7x5soyic
GET https://markdownregistry.com/api/v1/resolve?ref=chrono-meta/forge-harness/prompt-regression
GET https://markdownregistry.com/api/v1/blob/1de29bdf11b3df00358b15af5db5b7cf4358d70c24dac128b12dbec7a52ee817

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