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Stably Orca

by stablyai · stablyai/orca

Run multiple coding agents in parallel against the same repo, with merge orchestration — useful when one agent isn't enough.

Orca packages a multi-agent workflow as an IDE / harness. You can spawn parallel Claude sessions on a branch each, then orchestrate merging or selecting the best output.

Why use it

Key features

Live Demo

What it looks like in practice

ready

Install

Pick your client

~/Library/Application Support/Claude/claude_desktop_config.json  · Windows: %APPDATA%\Claude\claude_desktop_config.json
{
  "mcpServers": {
    "stably-orca-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/stablyai/orca"
      ],
      "_inferred": true
    }
  }
}

Open Claude Desktop → Settings → Developer → Edit Config. Restart after saving.

~/.cursor/mcp.json · .cursor/mcp.json
{
  "mcpServers": {
    "stably-orca-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/stablyai/orca"
      ],
      "_inferred": true
    }
  }
}

Cursor uses the same mcpServers schema as Claude Desktop. Project config wins over global.

VS Code → Cline → MCP Servers → Edit
{
  "mcpServers": {
    "stably-orca-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/stablyai/orca"
      ],
      "_inferred": true
    }
  }
}

Click the MCP Servers icon in the Cline sidebar, then "Edit Configuration".

~/.codeium/windsurf/mcp_config.json
{
  "mcpServers": {
    "stably-orca-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/stablyai/orca"
      ],
      "_inferred": true
    }
  }
}

Same shape as Claude Desktop. Restart Windsurf to pick up changes.

~/.continue/config.json
{
  "mcpServers": [
    {
      "name": "stably-orca-skill",
      "command": "git",
      "args": [
        "clone",
        "https://github.com/stablyai/orca"
      ]
    }
  ]
}

Continue uses an array of server objects rather than a map.

~/.config/zed/settings.json
{
  "context_servers": {
    "stably-orca-skill": {
      "command": {
        "path": "git",
        "args": [
          "clone",
          "https://github.com/stablyai/orca"
        ]
      }
    }
  }
}

Add to context_servers. Zed hot-reloads on save.

claude mcp add stably-orca-skill -- git clone https://github.com/stablyai/orca

One-liner. Verify with claude mcp list. Remove with claude mcp remove.

Use Cases

Real-world ways to use Stably Orca

Try multiple approaches in parallel

👤 Claude Code users ⏱ ~15 min intermediate

When to use: You're unsure which approach will work; want N agents to explore each.

Flow
  1. Spawn
    Launch N sessions with the same brief.✓ Copied
    → Branches per agent
  2. Compare
    Diff outputs.✓ Copied
    → Best approach identified
  3. Merge
    Take the best parts.✓ Copied
    → Final code

Outcome: Better selection at the cost of N× tokens.

Combinations

Pair with other MCPs for X10 leverage

stably-orca-skill + claude-octopus

Octopus picks plan; Orca executes in parallel

Combine stably-orca-skill with claude-octopus: Octopus picks plan; Orca executes in parallel✓ Copied

Tools

What this MCP exposes

ToolInputsWhen to callCost
spawn / diff / merge (see docs) Three flows 1 call

Cost & Limits

What this costs to run

API quota
N/A
Tokens per call
Multi-session cost
Monetary
Free OSS; LLM costs N×
Tip
Set cost caps — parallel sessions get expensive

Security

Permissions, secrets, blast radius

Minimum scopes: fs-read fs-write
Credential storage: Per-session branches
Data egress: None by itself

Troubleshooting

Common errors and fixes

Merge conflicts

Sessions should target disjoint paths when possible

Alternatives

Stably Orca vs others

AlternativeWhen to use it insteadTradeoff
manaflow-ai/cmuxYou want a terminal UINo merge orchestration

More

Resources

📖 Read the official README on GitHub

🐙 Browse open issues

🔍 Browse all 400+ MCP servers and Skills