hypothesis-gen

hypothesis-gen is a skill for Claude Code, Codex from beita6969/ScienceClaw. It costs 38 tokens per session (732 once invoked), scanned A, original, MIT.

A structured method for turning observations, unanswered questions, or early data into testable scientific explanations. It can also state null and alternative hypotheses.

In plain words
What is it for?
Use it to propose hypotheses, compare possible explanations, and define what results would support or reject them.
Why use it?
It gives research ideas a clear form and makes predictions explicit. This helps separate a testable explanation from a general guess.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for openclaw. Also seen: built for openclaw.

Good fit Use it to propose hypotheses, compare possible explanations, and define what results would support or reject them.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/beita6969/scienceclaw/hypothesis-gen
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 beita6969/ScienceClaw --skill hypothesis-gen
Clone the repo
git clone --depth 1 https://github.com/beita6969/ScienceClaw

Made for: Claude Code, 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 hypothesis-gen

README.md
[![agentmods](https://agentmods.dev/badge/skills/beita6969/scienceclaw/hypothesis-gen/github.svg)](https://agentmods.dev/skills/beita6969/scienceclaw/hypothesis-gen)
Your own site
<a href="https://agentmods.dev/skills/beita6969/scienceclaw/hypothesis-gen"><img src="https://agentmods.dev/badge/skills/beita6969/scienceclaw/hypothesis-gen/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 hypothesis-gen

Your own site · 80×15
<a href="https://agentmods.dev/skills/beita6969/scienceclaw/hypothesis-gen"><img src="https://agentmods.dev/badge/skills/beita6969/scienceclaw/hypothesis-gen.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 732 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original 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 $0.00038 $0.00732
Opus 5 $0.00019 $0.00366
Sonnet 5 $0.00008 $0.00146
Haiku 4.5 $0.00004 $0.00073

Measured 8d ago against content hash 21f2a23f4b5b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

hypothesis-gen 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 8d 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.

skills/hypothesis-gen/SKILL.md · 101 lines

How it starts

The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Hypothesis Generation Skill

Structured workflow for generating testable scientific hypotheses.

When to Use

  • "Generate hypotheses for this research question"
  • "What could explain this observation?"
  • "Propose testable ideas based on this data"
  • "Help me formulate H0 and H1"
  • "What hypotheses does this gap suggest?"

When NOT to Use

  • Testing/verifying hypotheses (use scienceclaw-verification)
  • Designing experiments (use experimental-design)
  • Literature searching (use literature-search)
  • Writing full papers (use paper-writing)

Generation Workflow

Step 1: Observe

Identify the phenomenon, anomaly, or gap:

  • What was observed?
  • What is unexpected or unexplained?
  • What contradicts existing theory?
  • What data pattern needs explanation?

Step 2: Contextualize

Ground in existing literature:

  • What do current theories predict?
  • What related findings exist?
  • Where are the knowledge gaps?
  • What alternative explanations exist?

Step 3: Formulate

State the hypothesis formally:

Template: "If [independent variable/condition], then [predicted effect on dependent variable], because [proposed mechanism]."

Null Hypothesis (H0): No effect / no difference / no relationship Alternative Hypothesis (H1): The predicted effect exists Directional: Specify direction (increase/decrease) when justified

Step 4: Evaluate

Score each hypothesis on:

Criterion Score (1-5) Description
Testability _ Can be experimentally tested?
Falsifiability _ Can be proven wrong?
Novelty _ How new is this idea?
Mechanism _ Is the proposed mechanism plausible?
Feasibility _ Can current methods test it?
Impact _ How significant if confirmed?

Step 5: Prioritize

Rank hypotheses by:

  • Total evaluation score
  • Risk-reward ratio (impact / feasibility)
  • Alignment with available resources
  • Potential for publication

Output Format

## Hypothesis [N]: [Short title]

**Statement**: If [condition], then [prediction], because [mechanism].
**H0**: [Null hypothesis]
**H1**: [Alternative hypothesis]

**Variables**:
- Independent: [variable]
- Dependent: [variable]
- Controls: [variables to hold constant]

**Evaluation**: Testability=[X] Falsifiability=[X] Novelty=[X] Mechanism=[X] Feasibility=[X] Impact=[X]
**Priority Score**: [Total/30]

**Key References**: [relevant citations]
**Suggested Test**: [brief experimental approach]

Read the full file on GitHub · 101 lines

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. 8d ago First seen · 101 lines · 38 tokens per session scan A 21f2a23f4b5b

Subscribe to this mod's changes

hypothesis-gen is a skill published in the GitHub repository beita6969/ScienceClaw (898 stars, last pushed 3mo ago), licensed MIT. It adds 38 tokens to every session and 732 once invoked, about $0.0002 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 2026-09-03.

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