The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
Ontosphere
Browser-based RDF/ontology knowledge graph editor — load RDF from files, URLs or SPARQL endpoints; author nodes and edges on the canvas; run OWL-RL reasoning; apply…
Install
$
docker run --rm -p 8080:8080 ontosphere:latestClaude Code
claude mcp add ontosphere -- docker run --rm -p 8080:8080 ontosphere:latestCursor / Claude Desktop (mcp.json)
{
"mcpServers": {
"ontosphere": {
"command": "docker",
"args": [
"run",
"--rm",
"-p",
"8080:8080",
"ontosphere:latest"
]
}
}
}Install command taken from the project's README or registry entry. Always review code before running it.
README excerpt
Read full README on GitHub →Ontosphere
Browser-based RDF knowledge-graph editor with client-side OWL 2 DL reasoning, reasoner-verified repair, and a Model Context Protocol server for AI agents.
Author, reason over, and repair RDF/OWL knowledge graphs entirely in your browser. Ontosphere loads RDF from files, URLs, or SPARQL endpoints; lets you author nodes and edges on a live canvas; runs a complete OWL 2 DL reasoner (Konclude, compiled to WebAssembly) with inferred triples shown inline; proposes reasoner-verified repairs for inconsistencies; and exposes everything to AI agents through a Model Context Protocol server. No backend, no install — just a browser tab.
| I want to… | Start here |
|---|---|
| 🚀 Try the live demo | Open Ontosphere ↗ |
| 🎬 Watch feature tutorials | Video tutorials |
| 🤖 Connect an AI agent | AI / MCP integration |
| 💻 Run it locally | Quick start |
| 📂 Load my own data | Startup / URL parameters |
| 🛠️ Contribute | Contributing |
Table of Contents
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