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21 changes: 21 additions & 0 deletions plugins/hetaoBackend/scientific-research-workflows/LICENSE
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MIT License

Copyright (c) 2025 K-Dense Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
86 changes: 86 additions & 0 deletions plugins/hetaoBackend/scientific-research-workflows/README.md
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# Scientific Research Workflows

This MiniMax Code Plugin packages nine complementary, local-first Skills from
[K-Dense Scientific Agent Skills](https://github.com/K-Dense-AI/scientific-agent-skills).
It helps researchers move from an early idea to a defensible study plan, analysis, manuscript, and
review without installing the upstream repository's unrelated, network-dependent, or
separately-licensed Skills.

## Included Skills

| Skill | Upstream version | Use it for |
| --- | ---: | --- |
| `scientific-brainstorming` | 1.1 | Generate and challenge candidate research directions. |
| `hypothesis-generation` | 2.1 | Turn observations into rival, testable hypotheses and predictions. |
| `experimental-design` | 1.1 | Plan randomization, blocking, controls, factorial designs, and study layouts. |
| `statistical-power` | 1.0 | Estimate sample sizes, detectable effects, and simulation-based power. |
| `statistical-analysis` | 1.1 | Select tests, check assumptions, estimate effects, and report results. |
| `uncertainty-and-units` | 1.0 | Check dimensions and propagate measurement uncertainty. |
| `scientific-writing` | 2.0 | Draft and audit evidence-traceable manuscripts and reports. |
| `peer-review` | 2.1 | Prepare authorized, constructive, evidence-bounded review drafts. |
| `scholar-evaluation` | 2.1 | Give qualitative developmental feedback on scholarly work. |

The Skills, references, assets, and scripts are sourced from upstream commit
[`1dd0fccf46fc3c9855c4a0c313a0c57fe4319883`](https://github.com/K-Dense-AI/scientific-agent-skills/commit/1dd0fccf46fc3c9855c4a0c313a0c57fe4319883).
To satisfy this repository's hosted-package validator, the scientific-writing templates use the
`[[DRAFT:...]]` label for unfinished fields; its local linter and scaffold helper were updated
consistently, with no change to the marker's meaning.
The bundle deliberately contains only Skills that declare the MIT license. The upstream repository
contains other Skills with different terms; those are not included here.

## Try it

```text
I am planning a two-site experiment comparing three treatments, but samples arrive in four weekly
batches. Help me define competing hypotheses, design randomization and blocking, estimate the sample
size for 80% power, and produce a preregistration-ready analysis outline. State every assumption and
do not invent pilot data.
```

Expected result: MiniMax Code separates hypotheses from established evidence, identifies the
experimental unit and likely batch/site confounders, proposes a reproducible blocked design, asks for
the effect-size inputs needed for power, and creates an analysis plan with explicit uncertainty and
reporting boundaries.

## Requirements

- MiniMax Code with Agent Skills support.
- Core guidance is platform-neutral and works without installing packages.
- Optional bundled command-line helpers require Python:
- Python 3.11+ standard library for the brainstorming, hypothesis, writing, peer-review, and
scholar-evaluation helpers.
- Python 3.10+ plus `numpy`, `pandas`, and `pyDOE3` for experimental-design helpers.
- Python 3.10+ plus `numpy`, `pandas`, `scipy`, `statsmodels`, `pingouin`, and `matplotlib` for
statistical power and analysis helpers. `pymc`, `arviz`, and `lifelines` are optional for the
corresponding Bayesian and survival workflows.
- Python 3.12+ plus `pint`, `uncertainties`, `numpy`, and `scipy` for uncertainty-and-units numeric
helpers.
- Supported on macOS, Windows, and Linux when the selected optional Python dependencies are available.
- No account or paid service is required.

## Data and network

- The Plugin defines no MCP server, telemetry, lifecycle hook, installer, or background process.
- Bundled scripts process bounded JSON, CSV, Markdown, or research data locally and do not make
network requests.
- The Skills may read user-selected manuscripts, study plans, or datasets from the active workspace
and may write requested local reports or intermediate artifacts.
- Confidential, unpublished, personal, clinical, or controlled material must remain local unless the
user has authorization and explicitly chooses an external destination. The peer-review and writing
Skills include stricter venue and confidentiality checks.
- No credentials required.

Disabling or uninstalling the Plugin removes these Skills from discovery. It does not remove Python
packages the user installed independently or delete files the user asked MiniMax Code to create.

## Attribution and maintenance

- Upstream project: <https://github.com/K-Dense-AI/scientific-agent-skills>
- Upstream snapshot: `1dd0fccf46fc3c9855c4a0c313a0c57fe4319883` (2026-08-31)
- Original author: K-Dense Inc.
- MiniMax Code package maintainer: [hetaoBackend](https://github.com/hetaoBackend)
- License: MIT; see [`LICENSE`](LICENSE).

This community package is an independently maintained selection, not an endorsement by K-Dense or
MiniMax. Future upstream updates require an explicit review of source changes, dependency behavior,
and each included Skill's license before the pinned snapshot is advanced.
21 changes: 21 additions & 0 deletions plugins/hetaoBackend/scientific-research-workflows/plugin.json
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{
"$schema": "https://agent-plugins.org/schemas/1.0.0/plugin.schema.json",
"name": "scientific-research-workflows",
"version": "1.0.0",
"description": "Nine local-first scientific research Skills for ideation, hypotheses, study design, statistics, uncertainty, writing, peer review, and scholarly evaluation.",
"author": {
"name": "K-Dense Inc.; MiniMax Code packaging by hetaoBackend",
"url": "https://k-dense.ai"
},
"homepage": "https://github.com/K-Dense-AI/scientific-agent-skills",
"repository": "https://github.com/K-Dense-AI/scientific-agent-skills",
"license": "MIT",
"keywords": [
"minimax-code",
"science",
"research",
"statistics",
"peer-review",
"scientific-writing"
]
}
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---
name: experimental-design
description: Design experiments and studies BEFORE data is collected — choosing a design, randomizing, blocking, and laying out treatment combinations so results are interpretable. Use whenever someone is planning a study, asks how to assign subjects/samples to groups, mentions randomization, blocking, stratification, controls, factorial or fractional-factorial designs, design of experiments (DOE), screening many factors, response-surface optimization, crossover or repeated-measures or split-plot designs, cluster/group randomization, Latin squares, plate layouts, batch/run-order effects, replication vs. pseudoreplication, or sequential/adaptive/group-sequential designs. Trigger even for informal phrasings like "how should I set up this experiment", "how do I avoid confounding", "what's the best way to test these 6 factors", or "assign these mice to conditions". For computing the sample size or power once the design is chosen, use statistical-power; for analyzing data already collected, use statistical-analysis.
allowed-tools: Read Write Edit Bash
compatibility: Requires Python >=3.10. Scripts use numpy, pandas, and pyDOE3 (DOE matrices). Install with uv as shown below.
license: MIT license
metadata:
version: "1.1"
skill-author: K-Dense Inc.
---

# Experimental Design

## Overview

The design of a study — how units are assigned to conditions, what is held constant, what is varied, and in what structure — determines what questions the data can answer. No analysis can rescue a confounded or pseudoreplicated design after the fact. This skill is about the decisions made *before* data collection: picking a design that isolates the effect of interest, randomizing to license causal claims, blocking to remove known nuisance variation, and structuring multi-factor experiments so effects are estimable rather than tangled together.

The three ideas behind almost every good design (Fisher's principles):
- **Randomization** — assign treatments at random so that confounders, known and unknown, are balanced in expectation. This is what turns a comparison into a causal claim.
- **Replication** — independent repetition at the right level, so you can estimate variability and your effects aren't artifacts of a single unit. The most common fatal error is **pseudoreplication**: counting repeated measurements on the same unit as independent replicates.
- **Blocking / local control** — group similar units (by batch, day, site, litter) and randomize within blocks, removing that nuisance variation from the error term instead of letting it inflate noise.

This skill helps you choose among design types, generate the actual randomization or DOE layout (with reproducible scripts), and avoid the structural mistakes that make data uninterpretable.

## When to Use This Skill

- Planning any comparative experiment or trial and deciding how to assign units
- Randomizing subjects/samples to arms (simple, blocked, stratified, or cluster)
- Removing nuisance variation by blocking or stratification
- Designing multi-factor experiments: full or fractional factorial, screening designs
- Optimizing a response over continuous factors (response-surface designs)
- Within-subject / repeated-measures, crossover, split-plot, or Latin-square designs
- Cluster- or group-randomized designs (sites, clinics, classrooms, litters)
- Deciding the number and level of replicates and avoiding pseudoreplication
- Sequential, group-sequential, or adaptive designs with interim analyses
- Laying out plates/batches and randomizing run order to defeat drift

## Installation

```bash
uv pip install "numpy>=1.26" "pandas>=2.0" pyDOE3
```

`pyDOE3` is the maintained successor to pyDOE/pyDOE2 and supplies factorial,
fractional-factorial, Plackett-Burman, central-composite, Box-Behnken, and
Latin-hypercube generators. The bundled scripts wrap it to return designs in real
factor units with named columns and randomized run order.

---

## Choosing a design

Start from the question and the structure of your units, not from a favorite design.

```
What are you trying to learn?
├─ Compare a few predefined conditions (A vs B vs C)?
│ ├─ Units independent, possibly with a known nuisance factor (day, batch, site)?
│ │ → Completely randomized (no nuisance) or RANDOMIZED BLOCK design.
│ ├─ Each unit can receive every condition in sequence (washout possible)?
│ │ → CROSSOVER / repeated-measures design (more power, watch carry-over).
│ └─ You can only randomize groups, not individuals (schools, clinics)?
│ → CLUSTER-randomized design (analyze at the cluster level; see pseudoreplication).
├─ Screen MANY factors (5+) to find the few that matter?
│ → FRACTIONAL FACTORIAL or PLACKETT-BURMAN screening design.
├─ Quantify main effects AND interactions among a handful of factors?
│ → FULL 2^k FACTORIAL design.
├─ Find the settings that OPTIMIZE a response (curvature matters)?
│ → RESPONSE-SURFACE design: central composite or Box-Behnken.
└─ Explore a simulation/computer model over a continuous space?
→ SPACE-FILLING design: Latin hypercube.
```

Detailed guidance per branch:
- **Randomization, blocking, stratification, controls** → `references/randomization_and_blocking.md`
- **Factorial, fractional-factorial, screening, response-surface, DOE concepts (aliasing, resolution)** → `references/factorial_and_doe.md`
- **Crossover, repeated-measures, split-plot, Latin-square, cluster, nested designs** → `references/design_types.md`
- **Sequential, group-sequential, and adaptive designs (interim analyses)** → `references/sequential_and_adaptive.md`

---

## Generating the design

Two scripts produce ready-to-use, reproducible layouts. Run them from the skill's
`scripts/` directory or add it to `sys.path`. Everything is seeded so the exact
schedule can be archived and regenerated — a requirement for trial registration
and good lab practice.

### Randomization / allocation schedules — `scripts/randomization.py`

```python
from randomization import (
simple_randomization, block_randomization,
stratified_block_randomization, cluster_randomization,
assign_factorial_runs, arm_balance,
)

# Permuted blocks keep the arms balanced throughout enrollment (use for n < ~100
# or sequential intake — simple randomization can drift out of balance with small n)
sched = block_randomization(n=60, arms=["treatment", "control"], seed=42)

# Balance a prognostic variable across arms by randomizing within each stratum
sched = stratified_block_randomization({"siteA": 30, "siteB": 30},
arms=["drug", "placebo"], ratio=(2, 1), seed=42)

# Randomize whole clusters, not individuals (the cluster is the unit)
sched = cluster_randomization(["clinic1", "clinic2", "clinic3", "clinic4"], seed=42)

arm_balance(sched) # sanity-check the counts per arm
sched.to_csv("allocation_schedule.csv", index=False)
```

Choosing among them: **simple** is fine for large n but can produce imbalance with
small n; **block** guarantees balance throughout; **stratified block** additionally
balances a known prognostic factor; **cluster** is mandatory when the intervention
is delivered at a group level. See `references/randomization_and_blocking.md`.

### DOE matrices — `scripts/doe_designs.py`

```python
from doe_designs import (
full_factorial, two_level_factorial, fractional_factorial,
plackett_burman, central_composite, box_behnken, latin_hypercube,
)

# Factors as real-world (low, high) ranges -> design comes back in real units
factors = {"temp_C": (20, 60), "conc_mM": (1, 10), "pH": (6, 8)}

# Full 2^3: all main effects + all interactions (8 runs), run order randomized
design = two_level_factorial(factors, seed=42)

# Screen 7 factors cheaply (main effects only)
many = {f"factor_{i}": (0, 1) for i in range(7)}
design = plackett_burman(many, seed=42)

# Optimize over 2 factors with curvature (response-surface)
design = central_composite({"temp_C": (20, 60), "conc_mM": (1, 10)}, seed=42)

design.to_csv("experimental_runs.csv", index=False)
```

Run order is randomized by default so factors aren't confounded with time/drift
(machine warm-up, reagent aging). See `references/factorial_and_doe.md` for picking
generators, reading the alias structure, and choosing resolution.

---

## The mistakes that ruin studies

These are structural — they can't be fixed in analysis, only in design.

1. **Pseudoreplication.** Treating repeated measurements of one unit as independent
replicates: 3 mice with 100 cells each is n = 3 (mice), not n = 300 (cells), for
any treatment applied to the mouse. The replicate must be at the level the
treatment is randomized. This single error invalidates a large share of published
experiments. Randomize and replicate at the right level; analyze with the nesting
respected (mixed model). See `references/design_types.md`.
2. **Confounding by a nuisance variable.** Running all treatment samples on Monday
and all controls on Tuesday confounds treatment with day. Randomize across, or
block on, every nuisance factor you can name (batch, day, plate, technician,
instrument, position).
3. **No or broken randomization.** Convenience assignment (first-come → treatment)
lets confounders sneak in. Use a seeded schedule and follow it.
4. **No proper control.** Without a concurrent control (and, where relevant, a
vehicle/sham and blinding), you can't separate the treatment effect from time,
placebo, or handling effects.
5. **Batch effects mistaken for biology.** In omics especially, process samples in a
randomized/blocked order across batches; never let batch align with the condition.
6. **Edge/position effects on plates.** Evaporation and thermal gradients make plate
edges differ. Randomize or block sample positions; don't put all controls in
column 1.
7. **Aliasing ignored in fractional designs.** A low-resolution fractional factorial
confounds main effects with interactions; know your alias structure before
concluding a factor "has no effect."
8. **Optimizing without curvature.** A two-level factorial can't detect a curved
response; you'll miss an interior optimum. Use a response-surface design.

---

## Workflow

1. **State the question, the unit, and the response.** What is randomized? What is
measured? At what level is a true independent replicate? This determines everything.
2. **List nuisance factors** (batch, day, site, operator, position) — plan to block,
stratify, or randomize across each.
3. **Pick the design** using the decision tree and reference files.
4. **Decide replication** at the correct level (and get n from the
**statistical-power** skill for the chosen design).
5. **Generate the layout** with `randomization.py` / `doe_designs.py`, seeded.
6. **Randomize run/processing order** and plate/batch positions.
7. **Document** the design, seed, and schedule (pre-register if possible) so the
analysis is confirmatory and the layout is auditable.
8. **Match the analysis to the design** — blocks, strata, clusters, and nesting must
appear in the model (hand off to **statistical-analysis** / **statsmodels**).

---

## Resources

### Scripts
- `scripts/randomization.py` — seeded allocation schedules: `simple_randomization`,
`block_randomization`, `stratified_block_randomization`, `cluster_randomization`,
`assign_factorial_runs`, `arm_balance`.
- `scripts/doe_designs.py` — DOE matrices in real units: `full_factorial`,
`two_level_factorial`, `fractional_factorial`, `plackett_burman`,
`central_composite`, `box_behnken`, `latin_hypercube`.

### References
- `references/randomization_and_blocking.md` — randomization methods, blocking,
stratification, controls, blinding, batch/plate layout.
- `references/factorial_and_doe.md` — factorial and fractional designs, resolution
and aliasing, screening, and response-surface methodology.
- `references/design_types.md` — completely randomized, randomized block, crossover,
repeated-measures, split-plot, Latin-square, cluster, and nested designs; the
pseudoreplication problem in depth.
- `references/sequential_and_adaptive.md` — group-sequential designs, alpha spending,
interim stopping, and adaptive sample-size re-estimation.

### Related skills
- **statistical-power** — required sample size / power for the design you've chosen.
- **statistical-analysis** — running and reporting the analysis after collection.
- **statsmodels** / **pymc** — fitting the models the design implies.

### Key references
- Fisher, R. A. (1935). *The Design of Experiments*.
- Montgomery, D. C. (2019). *Design and Analysis of Experiments* (10th ed.).
- Hurlbert, S. H. (1984). Pseudoreplication and the design of ecological field
experiments. *Ecological Monographs*, 54(2), 187–211.
- Lazic, S. E. (2016). *Experimental Design for Laboratory Biologists*.
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