evolve

evolve is a skill for Claude Code from mycelium-hq/ai-brain-starter. It costs 100 tokens per session (671 once invoked), scanned A, original, MIT.

A tool for turning accumulated AI-assistant feedback into reusable commands, skills, or agents. It groups related high-confidence pieces of feedback and drafts a proposed structure.

In plain words
What is it for?
Use it when many related lessons have built up in one area and need to be reviewed and consolidated.
Why use it?
It helps prevent useful lessons from remaining scattered as separate notes that are difficult to reuse.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the ai-brain-starter plugin — 38 skills, 17 commands, 3 agents, 1 hook shipped together

Good fit Use it when many related lessons have built up in one area and need to be reviewed and consolidated.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mycelium-hq/ai-brain-starter/evolve
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 mycelium-hq/ai-brain-starter --skill evolve
Clone the repo
git clone --depth 1 https://github.com/mycelium-hq/ai-brain-starter

Made for: Claude Code.

Or install ai-brain-starter, the plugin that ships this one along with the rest of its 38 skills, 17 commands, 3 agents, 1 hook.

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 evolve

README.md
[![agentmods](https://agentmods.dev/badge/skills/mycelium-hq/ai-brain-starter/evolve/github.svg)](https://agentmods.dev/skills/mycelium-hq/ai-brain-starter/evolve)
Your own site
<a href="https://agentmods.dev/skills/mycelium-hq/ai-brain-starter/evolve"><img src="https://agentmods.dev/badge/skills/mycelium-hq/ai-brain-starter/evolve/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 evolve

Your own site · 80×15
<a href="https://agentmods.dev/skills/mycelium-hq/ai-brain-starter/evolve"><img src="https://agentmods.dev/badge/skills/mycelium-hq/ai-brain-starter/evolve.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 100 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 671 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 $0.00100 $0.00671
Opus 5 $0.00050 $0.00336
Sonnet 5 $0.00020 $0.00134
Haiku 4.5 $0.00010 $0.00067

Measured 9d ago against content hash 93056726968a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

evolve 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 9d 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.

skills/evolve/SKILL.md · 56 lines

How it starts

The opening of the file, as written. The whole thing — 56 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/evolve — promote a cluster of instincts into a structure

{SKILL_DIR} = this skill's own folder (locally: the directory this SKILL.md lives in; a served brain substitutes the real absolute path before you read this). Shared starter files live at the repo root two levels up: {SKILL_DIR}/../... If a path does not resolve, name the missing file and stop — never guess another location.

When many related, high-confidence instincts pile up in one domain, that is a signal to promote them into ONE reusable structure instead of leaving them as loose memories. /evolve finds those clusters deterministically and drafts a proposal you refine.

ECC source pattern: "/evolve clusters related instincts into higher-level structures: Commands / Skills / Agents." Reimplemented clean per license-hygiene.

Step 1 — run the clusterer (deterministic, zero LLM cost)

python3 "{SKILL_DIR}/../../scripts/instinct.py" evolve

It groups every instinct by inferred domain, computes each cluster's median effective confidence, and for clusters that clear the propose bar (>= 2 instincts AND median confidence >= 0.80) writes a scaffold to <vault>/⚙️ Meta/Instinct Proposals/proposed-skill-<domain>.md. Clusters below the bar print as watch (not yet ripe).

Step 2 — judge each PROPOSE cluster

For each proposal the script wrote, decide the structure:

  • Command — the cluster is ONE repeatable procedure with a clear trigger.
  • Skill — the cluster is a coherent body of domain guidance (most common).
  • Agent — the cluster describes an autonomous multi-step workflow.

A cluster that is really just 2-3 facets of an existing rule should be CONSOLIDATED into that rule, not promoted. Reject those.

Step 3 — draft (only on confirm)

For an accepted cluster, draft the real skill/command body from the member instincts (keep each instinct's Action + Evidence). Place it in the right repo per the install rules, wire its discoverability + automation + verification in the SAME session (the three-layer wiring rule), then retire or link the source memories. Delete the proposal file once adopted or rejected — proposals are scratch, not a backlog.

Read the full file on GitHub · 56 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. 9d ago First seen · 56 lines · 100 tokens per session scan A 93056726968a

Subscribe to this mod's changes

evolve is a skill published in the GitHub repository mycelium-hq/ai-brain-starter (36 stars, last pushed 2d ago), licensed MIT. It adds 100 tokens to every session and 671 once invoked, about $0.0005 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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