conjoint-design SKILL.md skillA
conjoint-design from scdenney/open-science-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add scdenney/open-science-skills/conjoint-design@git:20261008.cd70e9bPins git:20261008.cd70e9b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- scdenney/open-science-skills
- Path
codex/conjoint-design/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261008.cd70e9b, committed Oct 8, 2026
- First version recorded
- Jul 2, 2026
- Size
- 24,704 bytes
- Repository stars
- 69
- License
- a license file GitHub does not identify
Designs conjoint and factorial-vignette experiments: attributes and restrictions, effective-N power, estimand choice among AMCE, marginal means, and AMIE, forced choice versus rating, and PAP tiers. Use when planning a conjoint, critiquing an attribute table, sizing respondents and tasks, or testing interactions.
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
# Conjoint Design Expert > Worked example (attribute table → power calculation → PAP tier assignment): see `references/example.md`. ### 1. Is a Conjoint the Right Design? - **Identify the DGP Before Attributes:** Articulate the data-generating process the theory implies: which component of the compound profile bears the causal effect of interest, and what respondents are assumed to do when bundling or separating information. This is the "Why → If-Then" step of `hypothesis-building`; the attribute table follows from it. - **When a Conjoint Is the Wrong Tool:** Prefer another design when (a) the question concerns a single treatment dimension (a simple vignette experiment suffices), (b) the attributes cannot be independently randomized without producing incoherent profiles, or (c) the mechanism operates through holistic impression formation rather than attribute-by-attribute evaluation (Sniderman 2018). …
Read the whole file at its exact version.
How to install
mdr add scdenney/open-science-skills/conjoint-design@sha256:259673b5df37c000The line at the top of this page pins the label git:20261008.cd70e9b, 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_qwu2smh6jre6fmau)
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Versions
The registry has recorded 5 versions of this file, between Jul 2, 2026 and Oct 8, 2026, about one every 24 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261008.cd70e9b latest | 2026-10-08 | cd70e9b | 24,704 B | A | view · diff |
| git:20261008.697c89f | 2026-10-08 | 697c89f | 24,411 B | A | view · diff |
| git:20260902.da5a263 | 2026-09-02 | da5a263 | 39,330 B | A | view · diff |
| git:20260808.0b54e42 | 2026-08-08 | 0b54e42 | 38,767 B | A | view · diff |
| git:20260702.0d142fe | 2026-07-02 | 0d142fe | 38,766 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 (24704 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
scdenney/open-science-skills · 69 stars · license a license file GitHub does not identify · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qwu2smh6jre6fmau GET https://markdownregistry.com/api/v1/resolve?ref=scdenney/open-science-skills/conjoint-design GET https://markdownregistry.com/api/v1/blob/259673b5df37c000c2aa0fcd71626888289025b27bd96cb21af4fa83a1dc691a
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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