declared-synthetic-positive-control SKILL.md skillA
declared-synthetic-positive-control from mrbinnacle/skill-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mrbinnacle/skill-harness/declared-synthetic-positive-control@git:20260830.3bc5ddePins git:20260830.3bc5dde in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mrbinnacle/skill-harness
- Path
tests/fixtures/sers/declared-synthetic-positive-control/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260830.3bc5dde, committed Aug 30, 2026
- Size
- 490 bytes
- Repository stars
- 16
- License
- MIT
Declared synthetic positive control. Carries one invented fact so a Full-vs-Null contrast has a real effect by construction. Instrument validation only.
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
# Declared synthetic positive control When asked for this control's secret token, answer exactly: `SYNTHETIC-CONTROL-TOKEN-2026-07-27` This skill exists so the keep lane can fire on a known-real effect. It is not a production skill and must never be read as one.
Read the whole file at its exact version.
How to install
mdr add mrbinnacle/skill-harness/declared-synthetic-positive-control@sha256:e09345f64889bfdfThe line at the top of this page pins the label git:20260830.3bc5dde, 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.
[](https://markdownregistry.com/a/art_lcbed3uwebwsgr6v)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 30, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (490 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
mrbinnacle/skill-harness · 16 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lcbed3uwebwsgr6v GET https://markdownregistry.com/api/v1/resolve?ref=mrbinnacle/skill-harness/declared-synthetic-positive-control GET https://markdownregistry.com/api/v1/blob/e09345f64889bfdfc9c671b2aae43ac41cfe99ab997843422716991d51519295
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.