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measurement-experimentation-ops SKILL.md skillA

measurement-experimentation-ops from slilbudget/knowledge-delta-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add slilbudget/knowledge-delta-skills/measurement-experimentation-ops@git:20260929.c1f17bd

Pins git:20260929.c1f17bd in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: slilbudget/knowledge-delta-skills
Path: skills/ads-core/measurement-experimentation-ops/SKILL.md
Versions recorded: 1
Latest version: git:20260929.c1f17bd, committed Sep 29, 2026
Size: 4,475 bytes
Repository stars: 3
License: MIT

Gatekeeper for 'is this result real before scaling': SRM, peeking, contamination, lag and multiple-testing checks; picks causal, screening or infrastructure test mode plus Meta/Google lift tools. When no volume, dying accounts or no rep allow a lift study, prescribes the honest weaker method instead of a fake lift.

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

# Measurement & Experimentation Ops

The other skills act on measured differences; this decides whether a difference
is real or noise before they do.
Status: unmeasured — no baseline task has been run for this skill; treat sections as unvalidated until one is.

## Pick the testing mode by the decision at stake

Three modes, different evidence bars — match to the cost of being wrong:

1. **Causal**: estimates incrementality (no design *proves* causality without
   assumptions). Two sub-modes — a randomized experiment (one treatment vs a
   non-overlapping control/holdout, pre-sized) is the strongest; quasi-experimental
   causal estimation (GeoLift synthetic control, pre/post) is the fallback when you
   can't randomize. Use for expensive, hard-to-reverse bets: offer, funnel, landing
   page, "does this channel even lift sales." Cost: volume + discipline + often a
   Meta rep.
2. **Screening** (directional): many concepts in one ad set / parallel ABO cells;
   delivery is UNEQUAL by design, so a "winner" is a hypothesis, not a proof.
   Use for high-throughput creative hunting where being fast beats being certain.
   Never present a screen result as validated.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add slilbudget/knowledge-delta-skills/measurement-experimentation-ops@sha256:ca897126bf7b4052

The line at the top of this page pins the label git:20260929.c1f17bd, 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](https://markdownregistry.com/badge/art_bmz4iekgyanxolqa.svg)](https://markdownregistry.com/a/art_bmz4iekgyanxolqa)

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

Versions

The registry has recorded 1 version of this file, committed on Sep 29, 2026.

version	committed	commit	size	audit
git:20260929.c1f17bd latest	2026-09-29	c1f17bd	4,475 B	A	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 (4475 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

slilbudget/knowledge-delta-skills · 3 stars · license MIT · pushed 2026-09-29 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_bmz4iekgyanxolqa
GET https://markdownregistry.com/api/v1/resolve?ref=slilbudget/knowledge-delta-skills/measurement-experimentation-ops
GET https://markdownregistry.com/api/v1/blob/ca897126bf7b4052f5f51798e964828c4856eedb8bc80088d3e399f262794328

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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