cognitive-fab/polygraph · skills/polynv/SKILL.md

polynv skillA

polynv is agent-read markdown (skill) from cognitive-fab/polygraph: Elicit the invariants for a state machine — the plugin takes the lead. Harvest candidate invariants from the contract's own vocabulary (terminal states, typed fields, reject rules, effect kinds), contribute the frontier model's domain knowledge as candidates, pre-check every candidate against the machine so each question arrives with a HOLDS verdict or a concrete counterexample story, then drive a plugin-led interview that converges an append-only intent ledger into a confirmed invariants.mjs. U.

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 cognitive-fab/polygraph/polynv@git:20260718.5d220f0
Exact content
mdr add cognitive-fab/polygraph/polynv@sha256:5a66f649bb4379cd

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_t5fl425wd7zrzzsc.svg)](https://markdownregistry.com/a/art_t5fl425wd7zrzzsc)

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Versions

versioncommittedcommitsizeaudit
git:20260718.5d220f0 latest2026-07-18 5d220f0 9,204 BA view · diff
git:20260718.9e394892026-07-18 9e39489 8,768 BA view · diff
git:20260718.c79e56b2026-07-18 c79e56b 8,301 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 (9204 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

cognitive-fab/polygraph · 11 stars · license Apache-2.0 · pushed 2026-09-13 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_t5fl425wd7zrzzsc
GET https://markdownregistry.com/api/v1/resolve?ref=cognitive-fab/polygraph/polynv
GET https://markdownregistry.com/api/v1/blob/5a66f649bb4379cdf4b9622068a24d01428c812b832841acf1f09be9fc5f5017

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