jaxlife-open-ended

jaxlife-open-ended is a skill for Codex from plurigrid/asi. It costs 42 tokens per session (3,383 once invoked), scanned A, original, MIT.

An artificial-life simulator for studying agents that learn, use tools, communicate, and develop new behaviors in programmable environments. Artificial life means computer simulations that model life-like adaptation and evolution.

In plain words
What is it for?
Use it to run experiments with embodied agents, neural-network controllers, programmable worlds, communication, agriculture, and tool use.
Why use it?
It provides an open-ended setting for observing behaviors that are not fully scripted in advance. This helps researchers study emergent behavior, cultural accumulation, and technological change.

Skill for Codex

Written for Codex: installed under .codex/.

Good fit Use it to run experiments with embodied agents, neural-network controllers, programmable worlds, communication, agriculture, and tool use.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/plurigrid/asi/jaxlife-open-ended
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 plurigrid/asi --skill jaxlife-open-ended
Clone the repo
git clone --depth 1 https://github.com/plurigrid/asi

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 jaxlife-open-ended

README.md
[![agentmods](https://agentmods.dev/badge/skills/plurigrid/asi/jaxlife-open-ended/github.svg)](https://agentmods.dev/skills/plurigrid/asi/jaxlife-open-ended)
Your own site
<a href="https://agentmods.dev/skills/plurigrid/asi/jaxlife-open-ended"><img src="https://agentmods.dev/badge/skills/plurigrid/asi/jaxlife-open-ended/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 jaxlife-open-ended

Your own site · 80×15
<a href="https://agentmods.dev/skills/plurigrid/asi/jaxlife-open-ended"><img src="https://agentmods.dev/badge/skills/plurigrid/asi/jaxlife-open-ended.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,383 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 $0.00042 $0.03383
Opus 5 $0.00021 $0.01691
Sonnet 5 $0.00008 $0.00677
Haiku 4.5 $0.00004 $0.00338

Measured 8d ago against content hash b47581c2d935, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

jaxlife-open-ended 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.

ies/music-topos/.codex/skills/jaxlife-open-ended/SKILL.md · 404 lines

How it starts

The opening of the file, as written. The whole thing — 404 lines — stays where its author put it; the contents beside it link to each section on GitHub.

JaxLife Open-Ended

Trit: +1 (PLUS - generator) Color: Red (#D82626)

Overview

Implements patterns from JaxLife and related open-ended ALife simulators:

  • Embodied agents with neural network controllers
  • Turing-complete programmable environments
  • Emergent communication, agriculture, and tool use
  • Open-ended cultural and technological accumulation

Key Papers

Core Concepts

JaxLife Environment

┌─────────────────────────────────────────────────────┐
│                   JAXLIFE WORLD                     │
├─────────────────────────────────────────────────────┤
│  ┌─────────┐  ┌─────────┐  ┌─────────┐             │
│  │ Agent 1 │  │ Agent 2 │  │ Agent N │  ...        │
│  │  (NN)   │  │  (NN)   │  │  (NN)   │             │
│  └────┬────┘  └────┬────┘  └────┬────┘             │
│       │            │            │                   │
│       ▼            ▼            ▼                   │
│  ┌─────────────────────────────────────────────┐   │
│  │              PROGRAMMABLE GRID               │   │
│  │   (Turing-complete, supports computation)    │   │
│  └─────────────────────────────────────────────┘   │
│       │                                             │
│       ▼                                             │
│  ┌─────────────────────────────────────────────┐   │
│  │         EMERGENT BEHAVIORS                   │   │
│  │  • Communication protocols                   │   │
│  │  • Agriculture / resource management         │   │
│  │  • Tool use and construction                 │   │
│  │  • Cultural inheritance                      │   │
│  └─────────────────────────────────────────────┘   │
└─────────────────────────────────────────────────────┘

Read the full file on GitHub · 404 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 · 404 lines · 42 tokens per session scan A b47581c2d935

Subscribe to this mod's changes

jaxlife-open-ended is a skill published in the GitHub repository plurigrid/asi (62 stars, last pushed 2mo ago), licensed MIT. It adds 42 tokens to every session and 3,383 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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