rotifer-arena
Benchmark Rotifer Genes against each other in the Arena — import from ClawHub / local / scratch, compile, match opponents, run Arena evaluation, and produce a Markdown report with F(g) fitness and V(g) security grades. Invoke explicitly to compare or benchmark Rotifer Genes. Do NOT use for general benchmarking, load testing, or comparing anything that is not a Rotifer Gene or Agent.
Rank
62
Safety
84
Downloads
986
Updated
Oct 11, 2026
Version
1.2.1
Source
CLAWHUB
About
What it does, and when to use it.
Capability contract not published. No trust telemetry is available yet. 986 downloads reported by the source. Last updated 10/11/2026.
Avoid when
- Contract metadata is missing or unavailable for deterministic execution.
Risk flags: missing_or_unavailable_contract, trust_data_unavailable, schema_references_missing
Public facts
Every fact links back to the source it came from.
- Vendor
- Clawhubvendor · observed Oct 11, 2026
- Protocol compatibility
- OpenClawcompatibility · observed Oct 11, 2026
- Adoption signal
- 986 downloadsadoption · observed Oct 11, 2026
- Latest release
- 1.2.1release · observed Aug 17, 2026
- Handshake status
- UNKNOWNsecurity
What changed
Newest first. Only changes that point at a source are listed.
Release 1.2.1release
rotifer-arena 1.2.1 - Updated project metadata in clawhub.json. - No functional or workflow changes; documentation and workflow remain unchanged.
Observed Aug 17, 2026 · source
Install and run
Setup complexity: low.
clawhub skill install s174dvd7sg66gw86h4t3c8575d83g51m:rotifer-arena- Install using `clawhub skill install s174dvd7sg66gw86h4t3c8575d83g51m:rotifer-arena` in an isolated environment before connecting it to live workloads.
- No published capability contract is available yet, so validate auth and request/response behavior manually.
- Review the upstream CLAWHUB listing at https://clawhub.ai/xiaoba-dev/rotifer-arena before using production credentials.
Contract: missing
curl -s "https://www.xpersona.co/api/v1/agents/clawhub-xiaoba-dev-rotifer-arena/snapshot"
Run-check
$0.02 USD1 measured facts are behind this paywall: success rate and latency, uptime and estimated cost, when not to use it, how to call it, benchmark scores.
Agents pay $0.02 in USDC. A card payment is $0.50, the smallest a card allows.
Documentation
CLAWHUB
103,720 characters of source documentation, loaded on request.
Extracted files
5 files captured from the source.
SKILL.md
---
name: rotifer-arena
description: >-
Benchmark Rotifer Genes against each other in the Arena — import from ClawHub / local /
scratch, compile, match opponents, run Arena evaluation, and produce a Markdown report with
F(g) fitness and V(g) security grades.
Invoke explicitly to compare or benchmark Rotifer Genes.
Do NOT use for general benchmarking, load testing, or comparing anything that is not a
Rotifer Gene or Agent.
---
# Rotifer Arena — Gene Comparison & Evaluation
> One Skill covering Gene/Genome/Agent comparison across all scenarios.
## Prerequisites
This Skill requires the Rotifer CLI:
```bash
npx @rotifer/playground --version
```
Or use the MCP Server for IDE integration:
```json
{
"mcpServers": {
"rotifer": {
"command": "npx",
"args": ["@rotifer/mcp-server"]
}
}
}
```
---
## Overview
This Skill wraps Rotifer Protocol's core value — **objective, quantifiable capability evaluation** — into a one-click workflow. Users don't need to understand Gene, Arena, or F(g) concepts upfront; the Skill introduces them naturally during execution.
**Cross-platform**: This SKILL.md runs in any AI development environment that supports Skills/Agents.
---
## Workflow
### Phase 1: Identify Evaluation Target
Understand user intent through conversation and determine the evaluation mode:
| User signal | Mode | Action |
|-------------|------|--------|
| "Evaluate the X skill from ClawHub" | **ClawHub migration evaluation** | `rotifer wrap <name> --from-clawhub <slug>` |
| "Compare my two implementations" | **Local comparison** | Confirm both Gene names, skip to Phase 3 |
| "I have a Skill I want to test" | **Skill import evaluation** | `rotifer wrap <name> --from-skill <path>` |
| "Help me build a XX scenario" | **Scenario scaffolding** | Guide Gene creation (`rotifer init` or manual phenotype) |
**If the user doesn't specify a domain**: auto-read from phenotype.json, or guide the user to choose.
### Phase 2: Compile & Verify
```bash
rotifer compile <gene-name>
```
Output guidance based on fidelity result:
- **Wrapped**: Verification passed, deterministic evaluation mode
- **Hybrid/Native**: WASM compilation, real sandbox execution mode (requires NAPI binding)
### Phase 3: Automatic Opponent Matching
**Priority order**:
1. **User-specified**: If the user says "compare X and Y", use those directly
2. **Same-domain local search**: Highest-ranked Gene from `rotifer arena list --domain <domain>`
3. **Same-fidelity preferred**: If target is Wrapped, prefer Wrapped opponents (avoid cross-fidelity blowouts)
4. **No opponent found**: Inform the user, show current cross-domain Arena rankings for reference
**Opponent selection requires user confirmation** — show candidate F(g) and fidelity.
### Phase 4: Arena Submit & Compare
```bash
rotifer vg <path-to-gene-a>
rotifer vg <path-to-gene-b>
rotifer arena submit <gene-a>
rotifer arena submit <gene-b>
rotifer arena list --domain <domain>
```
`rotifer vg` is wherREADME.md
# Rotifer Arena > Objective, quantifiable evaluation of Rotifer Genes. Head-to-head Gene comparison in the Arena of [Rotifer Protocol](https://rotifer.dev). **Not for general benchmarking.** Everything here operates on Rotifer Genes and the Rotifer CLI — it does not evaluate arbitrary AI capabilities, load-test services, or compare things that are not Genes. A ClawHub Skill can be evaluated only by first importing it *as* a Gene, which is a step you approve. ## What It Does Compare Rotifer Genes and produce a report you can act on: | Say this | It does this | |----------|-------------| | "Evaluate the web-search skill from ClawHub as a Rotifer Gene" | Imports it as a Gene, compiles, finds the top opponent in its domain, runs the Arena evaluation | | "Compare my two Rotifer Genes" | Head-to-head F(g) comparison with fitness breakdown | | "Build a Rotifer Gene benchmark for this domain" | Scaffolds the scenario, creates the Genes, runs evaluation | **Setup it does need**: a Rotifer workspace (`rotifer.json`), the CLI (`npm i -g @rotifer/playground`), and — for Native Genes — the TS→WASM toolchain that `rotifer doctor` checks. Every evaluation produces a structured Markdown report with: - **F(g)** fitness scores and ranking - **V(g)** security assessment - Fidelity comparison (Native vs Hybrid vs Wrapped) - Upgrade path recommendations ## Quick Start ``` Compare my particle-brute and particle-spatial Genes ``` The Skill handles the rest: confirms both Genes exist, submits to Arena, and generates a comparison report. ## Workflow 1. **Identify target** — understand what to evaluate 2. **Compile & verify** — `rotifer compile` the Gene 3. **Match opponent** — auto-find the strongest competitor in the same domain 4. **Arena submit** — run the evaluation 5. **Generate report** — structured Markdown with scores, rankings, and next steps ## What this Skill does on your machine It has no code of its own — it tells your assistant which `rotifer` commands to run. That is what its manifest's process-execution, filesystem and network permissions are for: the CLI acting, not this Skill. | | | |---|---| | **Runs** | The `rotifer` CLI (`@rotifer/playground`), fetched from npm if not installed. | | **Reads** | Genes and Agent definitions in the current project. | | **Writes** | Compiled Gene artifacts in the project, and — only when you reply "save" — an evaluation report under `arena-reports/`. Nothing outside the project. | | **Sends** | Arena submissions and registry queries to the public Rotifer API. Your Gene's source is not uploaded unless you run `rotifer publish` yourself. | Full detail in [SKILL.md](SKILL.md). ## Related Skills - [rotifer-guide](https://clawhub.ai/skills/rotifer-guide) — Learn Rotifer from scratch - [rotifer-agent](https://clawhub.ai/skills/rotifer-agent) — Compose Genes into Agents - [rotifer-self-evolving-agent](https://clawhub.ai/skills/rotifer-self-evolving-agent) — Auto-evolve your Agent ## Links - [Rotifer Protoco
_meta.json
{
"ownerId": "kn7ec5m4jmk1h4jyzfrxaesjk9838ykv",
"slug": "rotifer-arena",
"version": "1.2.1",
"publishedAt": 1786978469504
}skill-card.md
## Description: Rotifer Arena helps developers compare Rotifer Genes by importing or selecting Genes, compiling them, matching opponents, running Arena evaluation, and producing a Markdown report with fitness and security grades. This skill is ready for commercial/non-commercial use. ## Publisher: [xiaoba-dev](https://clawhub.ai/user/xiaoba-dev) ### License/Terms of Use: MIT-0 ## Use Case: Developers and engineers use this skill to benchmark and compare Rotifer Genes or imported ClawHub Skills as Genes, then review a concise Markdown report with Arena fitness, security grading, rankings, and upgrade guidance. ### Deployment Geography for Use: Global ## Known Risks and Mitigations: Risk: The workflow runs Rotifer npm packages that are not pinned to exact versions, which can change behavior or supply-chain exposure between runs. Mitigation: Pin exact @rotifer/playground and @rotifer/mcp-server versions where possible, avoid global installation when practical, and review proposed commands before execution. Risk: Rotifer evaluations may read project Genes, Agent definitions, and workspace files while running local CLI commands and public Arena or registry queries. Mitigation: Run evaluations in a low-privilege project or sandbox when the workspace contains sensitive code or credentials, and publish only after explicit user approval. ## Reference(s): - [Rotifer Protocol](https://rotifer.dev) - [Rotifer Documentation](https://rotifer.dev/docs) - [Rotifer Protocol Specification](https://github.com/rotifer-protocol/rotifer-spec) - [Rotifer Playground Repository](https://github.com/rotifer-protocol/rotifer-playground) - [ClawHub Skill Page](https://clawhub.ai/xiaoba-dev/skills/rotifer-arena) ## Skill Output: **Output Type(s):** [text, markdown, shell commands, configuration, guidance] **Output Format:** [Markdown report with comparison tables, ranking summaries, analysis, upgrade guidance, and bash command blocks.] **Output Parameters:** [1D] **Other Properties Related to Output:** [Reports are shown in the conversation first and are written to arena-reports/ only when the user explicitly asks to save them.] ## Skill Version(s): 1.2.1 (source: server release evidence and clawhub.json) ## Ethical Considerations: Users should evaluate whether this skill is appropriate for their environment, review any generated or modified files before relying on them, and apply their organization's safety, security, and compliance requirements before deployment.
clawhub.json
{
"name": "rotifer-arena",
"display_name": "Rotifer Arena",
"description": "One-click Gene comparison and evaluation. Import from ClawHub Skills, local files, or build from scratch — automatically compile, match opponents, run Arena battles, and generate a full Markdown report with fitness scores.",
"tagline": "Objective, quantifiable capability evaluation for AI agents",
"version": "1.2.1",
"author": "rotifer-protocol",
"license": "Apache-2.0",
"category": "developer-tools",
"tags": [
"rotifer",
"ai-agent",
"arena",
"benchmark",
"evaluation",
"comparison",
"gene",
"fitness"
],
"homepage": "https://rotifer.dev",
"repository": "https://github.com/rotifer-protocol/rotifer-playground",
"permissions": [
"process:exec",
"filesystem:read",
"filesystem:write",
"network:outbound"
],
"screenshots": [],
"demo_video": null
}AionUi
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Machine-readable data
The same record, as JSON, for agents and crawlers.
- Card JSON
- Facts JSON
- Snapshot JSON
- Contract JSON
- Trust JSON
- Changes JSON
- Warnings JSON
- Seen by JSON
- Disagreements JSON
{
"facts": [
{
"factKey": "vendor",
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"label": "Vendor",
"value": "Clawhub",
"href": "https://clawhub.ai/xiaoba-dev/skills/rotifer-arena",
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"sourceType": "profile",
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"isPublic": true
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},
{
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"events": [
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"description": "rotifer-arena 1.2.1 - Updated project metadata in clawhub.json. - No functional or workflow changes; documentation and workflow remain unchanged.",
"href": "https://clawhub.ai/xiaoba-dev/rotifer-arena",
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]
}Record generated Oct 12, 2026.
For crawlers
This page is free to read. The run-check above is the only paid part, and it answers HTTP 402 until it is paid. Everything else here is public.
- One record, as JSON: card, facts, snapshot, contract, trust, changes, warnings, seen by, disagreements.
- Every agent, one feed: /.well-known/ai-catalog.json
- What this site sells, and the price: /.well-known/x402
- Paid run-check: /api/v1/agents/clawhub-xiaoba-dev-rotifer-arena/run-check
