experiment SKILL.md skillA
experiment from ai-analyst-lab/ai-analyst is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ai-analyst-lab/ai-analyst/experiment@git:20260902.b370de6Pins git:20260902.b370de6 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ai-analyst-lab/ai-analyst
- Path
.claude/skills/experiment/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260902.b370de6, committed Sep 2, 2026
- First version recorded
- Aug 27, 2026
- Size
- 8,023 bytes
- Repository stars
- 322
- License
- MIT
The analysis and lifecycle owner for experiments. Full experiment lifecycle: design, power analysis, statistical analysis, interpretation, reporting, and monitoring of A/B tests. Invoke as /experiment. Trigger on "A/B test", "experiment", "treatment vs control", "sample size", "MDE", "statistical significance", "ship decision", "test readout", "is this result significant?". Runs the SRM gate first.
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
# Skill: /experiment — OpenXP Experimentation Platform
## Purpose
Multi-mode skill for the full experiment lifecycle — from design through analysis to ship/no-ship decision. Orchestrates experiment agents and calls coded statistical helpers from `helpers/stats/experiment_stats/` instead of improvising Python.
## When to Use
Invoke as `/experiment [mode]` or trigger on experiment-related intents:
- "I want to run an experiment"
- "Analyze this A/B test"
- "Did this experiment work?"
- "What's the power for this test?"
## Modes
### `/experiment design`
**Purpose:** Create a pre-registered experiment config.
**Agent:** `agents/experiments/experiment-designer.md`
**Flow:**
1. Run Experiment Brief skill to capture hypothesis, north star, guardrails
2. Invoke Experiment Designer agent
3. Output: `experiments/{slug}/experiment.yaml` (from `templates/experiment.yaml`)
**Checkpoint:** Config review (Type B — skippable with --just-do-it)
### `/experiment power`
**Purpose:** Power analysis + duration estimation.
**Flow:**
1. Read `experiments/{slug}/experiment.yaml` for metric type, baseline, MDE
2. Call `helpers/stats/experiment_stats/power.py`:
…Read the whole file at its exact version.
How to install
mdr add ai-analyst-lab/ai-analyst/experiment@sha256:4eeb325633fac25fThe line at the top of this page pins the label git:20260902.b370de6, 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_3bj6wprpsrejp3d6)
7 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Aug 27, 2026 and Sep 2, 2026, about one every 6 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260902.b370de6 latest | 2026-09-02 | b370de6 | 8,023 B | A | view · diff |
| git:20260827.7ff2e25 | 2026-08-27 | 7ff2e25 | 8,034 B | A | view |
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 (8023 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
ai-analyst-lab/ai-analyst · 322 stars · license MIT · pushed 2026-09-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3bj6wprpsrejp3d6 GET https://markdownregistry.com/api/v1/resolve?ref=ai-analyst-lab/ai-analyst/experiment GET https://markdownregistry.com/api/v1/blob/4eeb325633fac25f255dff418804d7a4782961515fe92e648233e5a9f7d829d2
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.
More from ai-analyst-lab/ai-analyst
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