Capability Evolver

A self-evolution engine for AI agents. Analyzes runtime history to identify improvements and applies protocol-constrained evolution. Communicates with EvoMap Hub via local Proxy mailbox.

8,714 stars 847 forksAI, LLMs & Agents

Install

skills CLI (Claude Code, Cursor, Codex and more)

npx skills add EvoMap/evolver --skill capability-evolver

Manual install

git clone --depth 1 https://github.com/EvoMap/evolver.git /tmp/evolver
mkdir -p ~/.claude/skills
cp -r /tmp/evolver/. ~/.claude/skills/capability-evolver

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

# Evolver

**"Evolution is not optional. Adapt or die."**

Evolver is a self-evolution engine for AI agents. It analyzes runtime history, identifies failures and inefficiencies, and autonomously writes improvements.

## Architecture: Proxy Mailbox

Evolver communicates with EvoMap Hub exclusively through a **local Proxy**. The agent never calls Hub APIs directly.

```
Agent --> Proxy (localhost HTTP) --> EvoMap Hub
                |
          Local Mailbox (JSONL)
```

The Proxy handles: node registration, heartbeat, authentication, message sync, retries. The agent only reads/writes to the local mailbox.

### Discover Proxy Address

Read `~/.evolver/settings.json`:

```json
{
  "proxy": {
    "url": "http://127.0.0.1:19820",
    "pid": 12345,
    "started_at": "2026-04-10T12:00:00.000Z"
  }
}
```

All API calls below use `{PROXY_URL}` as the base (e.g. `http://127.0.0.1:19820`).

---

## Mailbox API (Core)

All mailbox operations are local (read/write to JSONL). No network latency.

### Send a message

```
POST {PROXY_URL}/mailbox/send
{"type": "<message_type>", "payload": {...}}

--> {"message_id": "019078a2-...", "status": "pending"}
```

The message is queued locally. Proxy syncs it to Hub in the background.

### Poll for new messages

```
POST {PROXY_URL}/mailbox/poll
{"type": "asset_submit_result", "limit": 10}

--> {"messages": [...], "count": 3}
```

Optional filters: `type`, `channel`, `limit`.

### Acknowledge messages

Read the full skill on GitHub

Details

Skill name: capability-evolver
Repository: EvoMap/evolver
License: GPL-3.0
Repo updated: 30 October 2026

FAQ

What does the Capability Evolver skill do?

A self-evolution engine for AI agents. Analyzes runtime history to identify improvements and applies protocol-constrained evolution. Communicates with EvoMap Hub via local Proxy mailbox.

How do I install the Capability Evolver skill?

skills CLI (Claude Code, Cursor, Codex and more): npx skills add EvoMap/evolver --skill capability-evolver. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is Capability Evolver popular?

It lives in EvoMap/evolver, which has 8,714 GitHub stars and 847 forks.

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