conjoint-design

conjoint-design is a skill for Codex from scdenney/open-science-skills. It costs 142 tokens per session (8,454 once invoked), scanned A, original, no licence file.

A planning workflow for conjoint experiments, which measure how people value combinations of product or policy features. It covers the features to test, the number of responses needed, and the effects the study will estimate.

In plain words
What is it for?
It helps create attribute tables, plan sample size, choose target effects, and prepare conjoint estimation.
Why use it?
It helps make design decisions before data collection and avoid studies that cannot answer the intended question reliably.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit It helps create attribute tables, plan sample size, choose target effects, and prepare conjoint estimation.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/scdenney/open-science-skills/conjoint-design
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add scdenney/open-science-skills --skill conjoint-design
Clone the repo
git clone --depth 1 https://github.com/scdenney/open-science-skills

Made for: Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for conjoint-design

README.md
[![agentmods](https://agentmods.dev/badge/skills/scdenney/open-science-skills/conjoint-design/github.svg)](https://agentmods.dev/skills/scdenney/open-science-skills/conjoint-design)
Your own site
<a href="https://agentmods.dev/skills/scdenney/open-science-skills/conjoint-design"><img src="https://agentmods.dev/badge/skills/scdenney/open-science-skills/conjoint-design/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for conjoint-design

Your own site · 80×15
<a href="https://agentmods.dev/skills/scdenney/open-science-skills/conjoint-design"><img src="https://agentmods.dev/badge/skills/scdenney/open-science-skills/conjoint-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 142 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,454 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00142 $0.08454
Opus 5 $0.00071 $0.04227
Sonnet 5 $0.00028 $0.01691
Haiku 4.5 $0.00014 $0.00845

Measured 7d ago against content hash 928e8f3b47e7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

conjoint-design scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

codex/conjoint-design/SKILL.md · 115 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago Changed · +106 tokens per session 928e8f3b47e7
  2. 10d ago First seen · 115 lines · 36 tokens per session scan A 02a5b6ef9249

Subscribe to this mod's changes

conjoint-design is a skill published in the GitHub repository scdenney/open-science-skills (55 stars, last pushed today), with no licence file. It adds 142 tokens to every session and 8,454 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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