michael-denyer/pstack-claude · plugins/pstack/skills/principle-prove-it-works/SKILL.md

principle-prove-it-works skillA

principle-prove-it-works is agent-read markdown (skill) from michael-denyer/pstack-claude: Apply after completing a task, before declaring done. Verify against the real artifact (run the feature, read the actual value, inspect the diff), not a proxy, self-report, or 'it compiles.'.

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 michael-denyer/pstack-claude/principle-prove-it-works@git:20260907.ebb8c27
Exact content
mdr add michael-denyer/pstack-claude/principle-prove-it-works@sha256:87b3015f7f84ba79

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_3anxjjftz7ernxge.svg)](https://markdownregistry.com/a/art_3anxjjftz7ernxge)

0 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
git:20260907.ebb8c27 latest2026-09-07 ebb8c27 2,788 BA view · diff
git:20260907.c81549e2026-09-07 c81549e 2,977 BA view · diff
git:20260715.5debf232026-07-15 5debf23 2,059 BA view · diff
git:20260604.d869e0a2026-06-04 d869e0a 2,068 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 (2788 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

michael-denyer/pstack-claude · 286 stars · license MIT · pushed 2026-09-09 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_3anxjjftz7ernxge
GET https://markdownregistry.com/api/v1/resolve?ref=michael-denyer/pstack-claude/principle-prove-it-works
GET https://markdownregistry.com/api/v1/blob/87b3015f7f84ba7932879e712a130212b8ec69b44ac485fd6cc71b17a99f9cf4