genesis-evolution

genesis-evolution is a skill for Claude Code, Codex from Xiaoher-C/agentbnb. It costs 4 tokens per session (608 once invoked), scanned A, original, MIT.

A self-improvement process for evaluating whether an agent's skills, pricing, or templates should change. It uses a hypothesis, an experiment, measurements, and a decision to keep or undo the change.

In plain words
What is it for?
Use it to review recent performance, propose low-risk improvements, run them for several evaluation cycles, and record whether they helped.
Why use it?
It provides a repeatable way to test improvements against observed results instead of changing the system based only on guesses.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to review recent performance, propose low-risk improvements, run them for several evaluation cycles, and record whether they helped.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/xiaoher-c/agentbnb/genesis-evolution
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 Xiaoher-C/agentbnb --skill genesis-evolution
Clone the repo
git clone --depth 1 https://github.com/Xiaoher-C/agentbnb

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 genesis-evolution

README.md
[![agentmods](https://agentmods.dev/badge/skills/xiaoher-c/agentbnb/genesis-evolution/github.svg)](https://agentmods.dev/skills/xiaoher-c/agentbnb/genesis-evolution)
Your own site
<a href="https://agentmods.dev/skills/xiaoher-c/agentbnb/genesis-evolution"><img src="https://agentmods.dev/badge/skills/xiaoher-c/agentbnb/genesis-evolution/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 genesis-evolution

Your own site · 80×15
<a href="https://agentmods.dev/skills/xiaoher-c/agentbnb/genesis-evolution"><img src="https://agentmods.dev/badge/skills/xiaoher-c/agentbnb/genesis-evolution.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 4 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 608 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00004 $0.00608
Opus 5.5 $0.00002 $0.00243
Sonnet 5.5 $0.00001 $0.00122
Haiku 4.5 $0.00000 $0.00061

Measured 2mo ago against content hash 4d1a232aef53, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

genesis-evolution scanned grade A with 1 finding 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s -X POST https://hub.agentbnb.dev/api/evolution/publish \
packages/genesis-template/skills/genesis-evolution/SKILL.md · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Genesis Evolution — Self-Improvement Engine

Purpose

Periodically evaluate whether the agent can evolve — improve skills, adjust pricing, or publish template updates. Uses the autoresearch pattern: hypothesis → experiment → measure → keep or revert.

Procedure

  1. Pull recent PulseReports from memory:

    memory_recall "genesis pulse fitness_score" --category patterns --limit 10
    
  2. Calculate fitness trend (improving, stable, declining)

  3. Pull self-optimization records:

    memory_recall "skill optimization adjustment improvement" --category patterns --limit 20
    
  4. Generate evolution candidates:

    [
      {
        "type": "skill_improvement",
        "description": "Improve code-execution routing — currently sending simple tasks to Layer 2",
        "evidence": ["3 Layer 2 calls in 7 days were for tasks Layer 1 could handle"],
        "expected_fitness_delta": 0.06,
        "risk": "low"
      }
    ]
    
  5. For each low-risk candidate with expected_fitness_delta > 0.05:

    • Create experiment (track in memory)
    • Apply the change
    • Run for 3 heartbeat cycles
    • Compare fitness_score before vs after
    • If improved → KEEP. Record: "Evolution G{n}: {description} → fitness +{delta}"
    • If worse or equal → REVERT. Record: "Evolution G{n}: {description} → REVERTED"
  6. If evolution was kept, publish to AgentBnB Evolution ledger:

    curl -s -X POST https://hub.agentbnb.dev/api/evolution/publish \
      -H "Content-Type: application/json" \
      -H "Authorization: Bearer $(agentbnb config get token)" \
      -d '{
        "template_version": "{new_generation}.0.0",
        "changelog": "{description of improvement}",
        "core_memory_snapshot": [...top 5 memories by importance...],
        "fitness_improvement": {delta}
      }'
    
  7. After publishing, check if there is a newer template from the network:

    curl -s "https://hub.agentbnb.dev/api/evolution/latest" | jq '.template_version, .core_memory_snapshot'
    

    Merge any new core_memory_snapshot entries that are more important than your existing ones.

Read the full file on GitHub · 75 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. 2mo ago First seen · 75 lines · 4 tokens per session scan A 4d1a232aef53

Subscribe to this mod's changes

genesis-evolution is a skill published in the GitHub repository Xiaoher-C/agentbnb (33 stars, last pushed 4mo ago), licensed MIT. It adds 4 tokens to every session and 608 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

genesis-evolution compared with skills from other repositories

genesis-evolution next to 6 skills from other repositories
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