Hypothesis Generation
spacering-net/codeg
Structured hypothesis formulation from observations. An agent skill from spacering-net/codeg.
You must use this when formulating testable hypotheses, designing experimental controls, or defining falsification criteria.
Install Hypothesis Testing
$ npx skills add poemswe/co-researcher --skill hypothesis-testing -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install poemswe/co-researcher hypothesis-testing --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/poemswe/co-researcher.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/hypothesis-testing .claude/skills/hypothesis-testing && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "hypothesis-testing" agent skill from https://github.com/poemswe/co-researcher/tree/main/skills/hypothesis-testing into .claude/skills/hypothesis-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hypothesis-testing", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/poemswe/co-researcher/tree/main/skills/hypothesis-testingType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add poemswe/co-researcher --skill hypothesis-testing -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install poemswe/co-researcher hypothesis-testing --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/poemswe/co-researcher.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/hypothesis-testing .agents/skills/hypothesis-testing && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "hypothesis-testing" agent skill from https://github.com/poemswe/co-researcher/tree/main/skills/hypothesis-testing into .agents/skills/hypothesis-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hypothesis-testing", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add poemswe/co-researcher --skill hypothesis-testing -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install poemswe/co-researcher hypothesis-testing --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/poemswe/co-researcher.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/hypothesis-testing .cursor/skills/hypothesis-testing && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "hypothesis-testing" agent skill from https://github.com/poemswe/co-researcher/tree/main/skills/hypothesis-testing into .cursor/skills/hypothesis-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hypothesis-testing", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/poemswe/co-researcher.git --path skills/hypothesis-testing--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add poemswe/co-researcher --skill hypothesis-testing -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install poemswe/co-researcher hypothesis-testing --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/poemswe/co-researcher.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/hypothesis-testing .gemini/skills/hypothesis-testing && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "hypothesis-testing" agent skill from https://github.com/poemswe/co-researcher/tree/main/skills/hypothesis-testing into .gemini/skills/hypothesis-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hypothesis-testing", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install poemswe/co-researcher hypothesis-testingInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add poemswe/co-researcher --skill hypothesis-testing -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/poemswe/co-researcher.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/hypothesis-testing .github/skills/hypothesis-testing && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "hypothesis-testing" agent skill from https://github.com/poemswe/co-researcher/tree/main/skills/hypothesis-testing into .github/skills/hypothesis-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hypothesis-testing", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add poemswe/co-researcher --skill hypothesis-testing -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install poemswe/co-researcher hypothesis-testing --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/poemswe/co-researcher.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/hypothesis-testing .opencode/skills/hypothesis-testing && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "hypothesis-testing" agent skill from https://github.com/poemswe/co-researcher/tree/main/skills/hypothesis-testing into .opencode/skills/hypothesis-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hypothesis-testing", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
hypothesis-testing- GitHub stars
- 130
- Token cost
- ~830 tokens
- SKILL.md length
- 352 words
- Files
- 1
- Skills in repo
- 15
- Repo updated
- First seen
- Licence
- MIT
At a glance
You must use this when formulating testable hypotheses, designing experimental controls, or defining falsification criteria.
- Works in 3 steps: Hypothesis Formulation → Variable Mapping & Operationalization → Experimental Design Selection
- Research & Science work in your project
- SKILL.md covers 1. Hypothesis Formulation, 2. Variable Mapping &… and 3. Experimental Design Selection
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Hypothesis Testing is an agent skill from poemswe/co-researcher. You must use this when formulating testable hypotheses, designing experimental controls, or defining falsification criteria.
Its SKILL.md is about 830 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Research & Science. The repository describes itself as: A professional research suite for conducting rigorous academic research using specialized agents and multi-platform CLI commands. Compatible with Claude Code, Gemini CLI, OpenAI… The licence is MIT.
When your agent uses it
- Research & Science work in your project
Example prompts
- “/hypothesis-testing”
Workflow steps
3 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 28c966f. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Hypothesis Testing loads about 830 tokens when it runs. Until then it costs about 36 tokens; SKILL.md has 352 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from poemswe/co-researcher at commit 28c966f, republished under its MIT licence (© poemswe). 352 words, ~830 tokens.
Download SKILL.mdSave it as
.claude/skills/hypothesis-testing/SKILL.md (or your agent's skills folder).- name
- hypothesis-testing
- description
- You must use this when formulating testable hypotheses, designing experimental controls, or defining falsification criteria.
- tools
- WebSearch, WebFetch, Read, Grep, Glob
<role>
You are a PhD-level specialist in scientific hypothesis development and experimental design. Your goal is to transform initial observations into testable, falsifiable, and rigorously defined hypotheses, accompanied by a robust plan for empirical validation.
</role><principles>
- **Falsifiability**: Every hypothesis must be structured such that it can be proven wrong by evidence.
- **Logical Rigor**: Ensure internal consistency between the observation, the mechanical "Why", and the resulting "If/Then" statement.
- **Operational Precision**: Variables must be defined in measurable, observable, and valid terms.
- **Factual Integrity**: Never invent preliminary data or sources to support a hypothesis.
- **Uncertainty Calibration**: Clearly state the assumptions and boundary conditions under which the hypothesis holds.
</principles><competencies>1. Hypothesis Formulation
- The "High-Quality" Checklist: Focused, researchable, complex, and arguable.
- Directional vs. Non-directional: Specifying effects (H₁: X > Y) vs. differences (H₁: X ≠ Y).
- Causal Mechanisms: Defining the "Because" that explains the relationship.
2. Variable Mapping & Operationalization
- Variable roles: Independent (IV), Dependent (DV), Control, Confound, Mediator, Moderator.
- Scaling: Nominal, Ordinal, Interval, Ratio levels of measurement.
Show full SKILL.md (189 more words)Show less
3. Experimental Design Selection
- RCTs: The gold standard for causal inference.
- Quasi-experiments: For cases where random assignment is impossible.
- Observational studies: Longitudinal vs. Cross-sectional designs.
</competencies><protocol>
1. **Observation Analysis**: Deconstruct the phenomenon or data point of interest.
2. **Question Refinement**: Formulate a specific, complex research question.
3. **Hypothesis Construction**: Build the $H_0$ and $H_1$ statements with a stated mechanism.
4. **Variable Specification**: Map and operationalize all variables and controls.
5. **Mitigation Planning**: Identify potential confounds and specify control strategies.
6. **Falsification Criteria**: Define the exact data patterns that would lead to rejection of $H_1$.
</protocol><output_format>
Hypothesis Development: [Topic]
Research Question: [Specific, researchable question]
Hypotheses:
- $H_0$ (Null): [No relationship/effect]
- $H_1$ (Alternative): [Stated relationship/effect]
- Mechanism: [Theoretical "Why"]
Variable Matrix:
| Variable | Role | Operational Definition |
|---|---|---|
| [V1] | [IV/DV/Ctrl] | [Measurement method] |
Experimental Design:
- Type: [Design name]
- Justification: [Why this design fits]
Falsification Criteria: [Specific results that would disprove $H_1$] </output_format>
<checkpoint>
After the initial development, ask:
- Should I adjust the operationalization of the DV for higher sensitivity?
- Do you want to consider a different experimental design for higher feasibility?
- Should I conduct a "Pre-analysis Plan" or "Power Analysis" based on this design?
</checkpoint>© poemswe, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/hypothesis-testing of poemswe/co-researcher.
Open the folder on GitHubat commit 28c966f
Compare with similar skills
Hypothesis Testing next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Hypothesis Testing this skillpoemswe/co-researcher | 130 | — | ~830 | Automated safety check: Pass | MIT | |
| Hypothesis Generationspacering-net/codeg | 3.9k | 14 repos | ~3.6k | Automated safety check: Notes | MIT | |
| GitHub Deep Researchbytedance/deer-flow | 84k | 4 repos | ~1.3k | Automated safety check: Pass | MIT | |
| Nature Paper CardYuan1z0825/nature-skills | 47k | 2 repos | ~2.1k | Automated safety check: Pass | Apache-2.0 | |
| Content Research Writerweapp-tailwindcss/weapp-tailwindcss | 1.9k | 25 repos | ~3.5k | Automated safety check: Pass | MIT | |
| Peer Reviewspacering-net/codeg | 3.9k | 17 repos | ~5.9k | Automated safety check: Notes | MIT |
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Categories
Questions about Hypothesis Testing
What does Hypothesis Testing do?
You must use this when formulating testable hypotheses, designing experimental controls, or defining falsification criteria. Hypothesis Testing is an agent skill from poemswe/co-researcher. You must use this when formulating testable hypotheses, designing experimental controls, or defining falsification criteria.
When should I use Hypothesis Testing?
Hypothesis Testing fits situations like: research & Science work in your project.
How do I install Hypothesis Testing in Claude Code?
Run `npx skills add poemswe/co-researcher --skill hypothesis-testing -a claude-code`. Or copy the skill folder (skills/hypothesis-testing in poemswe/co-researcher) into .claude/skills/hypothesis-testing in your project. Claude Code loads it when a task matches its description.
How do I install Hypothesis Testing in Codex?
Run `npx skills add poemswe/co-researcher --skill hypothesis-testing -a codex`. Or copy the skill folder (skills/hypothesis-testing in poemswe/co-researcher) into .agents/skills/hypothesis-testing in your project. Codex loads it when a task matches its description.
Can I use Hypothesis Testing in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add poemswe/co-researcher --skill hypothesis-testing -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/hypothesis-testing, .gemini/skills/hypothesis-testing, .github/skills/hypothesis-testing and .opencode/skills/hypothesis-testing in your project.
What does Hypothesis Testing need to run?
SKILL.md names no scripts, command-line tools or credentials: Hypothesis Testing is instructions for the agent only.
Does Hypothesis Testing access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Hypothesis Testing safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Hypothesis Testing use?
Hypothesis Testing is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Hypothesis Testing use?
About 830 tokens (SKILL.md is roughly 3.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Hypothesis Testing?
Skills that share tags, products or a category with Hypothesis Testing: Hypothesis Generation (spacering-net/codeg, 3.9k stars), GitHub Deep Research (bytedance/deer-flow, 84k stars), Nature Paper Card (Yuan1z0825/nature-skills, 47k stars) and Content Research Writer (weapp-tailwindcss/weapp-tailwindcss, 1.9k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Hypothesis Testing?
poemswe (a GitHub user) maintains it in poemswe/co-researcher, which has 130 GitHub stars. The repository holds 15 skills in this directory. The repository was last updated on October 8, 2026.
Source: poemswe/co-researcher on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.