darwinian-evolver

darwinian-evolver is a skill for Claude Code, Codex from s1366560/agi-demos. It costs 28 tokens per session (1,564 once invoked), scanned A, original, no licence file.

An LLM-based loop for improving prompts, regular expressions, SQL queries, or code through repeated evolution steps. An LLM is a language model that generates and revises text or code.

In plain words
What is it for?
Use it to evolve prompts, regex patterns, SQL, or code with repeated model-assisted revisions.
Why use it?
It helps explore and refine alternatives when the first prompt, pattern, query, or implementation is not good enough.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to evolve prompts, regex patterns, SQL, or code with repeated model-assisted revisions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/s1366560/agi-demos/darwinian-evolver
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 s1366560/agi-demos --skill darwinian-evolver
Clone the repo
git clone --depth 1 https://github.com/s1366560/agi-demos

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 darwinian-evolver

README.md
[![agentmods](https://agentmods.dev/badge/skills/s1366560/agi-demos/darwinian-evolver/github.svg)](https://agentmods.dev/skills/s1366560/agi-demos/darwinian-evolver)
Your own site
<a href="https://agentmods.dev/skills/s1366560/agi-demos/darwinian-evolver"><img src="https://agentmods.dev/badge/skills/s1366560/agi-demos/darwinian-evolver/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 darwinian-evolver

Your own site · 80×15
<a href="https://agentmods.dev/skills/s1366560/agi-demos/darwinian-evolver"><img src="https://agentmods.dev/badge/skills/s1366560/agi-demos/darwinian-evolver.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,564 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.
Origin unknown 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 $0.00028 $0.01564
Opus 5 $0.00014 $0.00782
Sonnet 5 $0.00006 $0.00313
Haiku 4.5 $0.00003 $0.00156

Measured 2d ago against content hash 278510d8da23, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

darwinian-evolver 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 2d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/evaluate_local_parrot.py, scripts/parrot_openrouter.py, scripts/show_snapshot.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

src/infrastructure/plugins/v2/skills/darwinian-evolver/SKILL.md · 165 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2d ago Changed · +6 tokens per session 278510d8da23
  2. 10d ago First seen · 165 lines · 22 tokens per session scan A 6f4125798f43

Subscribe to this mod's changes

darwinian-evolver is a skill published in the GitHub repository s1366560/agi-demos (5 stars, last pushed 3d ago), with no licence file. It adds 28 tokens to every session and 1,564 once invoked, about $0.0001 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 2026-08-31.

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