jinnlab 3.2.1

Terminal game-theory laboratory for Axelrod matches, Moran processes, tournaments, and strategy analytics

JinnLab 3

JinnLab is a keyboard-first Textual research workbench for repeated Prisoner's Dilemma and evolutionary game theory.

Portfolio-grade capabilities

• Head-to-head Axelrod matches with cooperation metrics and seeded reproducibility.
• Batch experiment builder across multiple strategies and seeds.
• Pairwise strategy payoff matrix.
• Finite-population evolutionary simulation with mutation and generation snapshots.
• Round-robin tournament rankings.
• Rule-based Strategy Designer with persistent version lineage (v1 → v2 → v3).
• Persistent strategy notes and experiment notebook (hypothesis, observation, conclusion).
• Reproducible experiment IDs and match reruns.
• SQLite/WAL persistence, CSV export, analytics, and a headless JSON/CSV CLI.
• In-app instructions and plain-English result interpretation on every analysis workflow.

TUI

Run:

jinnlab

Keyboard shortcuts: m starts a match, 1–9 navigate major labs, r refreshes, e exports, and q quits.

The Guide tab explains score, cooperation rate, tournament rank, population share, seeds, repetitions, and how to avoid over-interpreting a single run.

Headless CLI

jinnlab match "Tit For Tat" Defector --turns 200 --repetitions 10 --seed 42
jinnlab tournament "Tit For Tat" Defector Grudger Cooperator --output csv
jinnlab matrix "Tit For Tat" Defector Grudger
jinnlab evolve "Tit For Tat=40" "Defector=30" "Cooperator=30" --generations 100

Install

bash install.sh
jinnlab

Data lives at ~/.local/share/jinnlab/jinnlab.db; exports live under ~/.local/share/jinnlab/exports/.

Development

python3 -m venv .venv
source .venv/bin/activate
pip install -e '.[dev]'
pytest

CI and container

GitHub Actions tests Python 3.10–3.12 on pushes and pull requests.

Headless experiments can run in a container:

docker build -t jinnlab .
docker run --rm jinnlab match "Tit For Tat" Defector --seed 42

The TUI is intended for a real terminal; the container entry point defaults to the headless CLI.

Keyboard shortcuts

• m — start the current Match experiment
• b — run the Batch experiment
• d — save the current Strategy Designer version
• 1–9 — switch major workbench tabs
• e — export experiments to CSV
• q — quit

The Match, Batch, and Designer screens are vertically scrollable so their primary action buttons remain reachable on smaller terminals.

3.2 Designer live refresh

Custom strategy families are available immediately after saving. Use FamilyName for the latest version or FamilyName vN for an exact saved version.