Agentastic vs Windsurf
Windsurf is an AI-powered editor with the Cascade agent and Supercomplete completions. Agentastic is a native macOS workspace that lets you launch any CLI coding agent — including Cascade-style agents like Claude Code, Codex, and Gemini — in parallel, with git-worktree isolation and built-in diff review.
Who should choose each option
Agentastic
Choose Agentastic if you want to run several agents at once and review each diff before merging.
Windsurf
Choose Windsurf if you want one AI editor with Cascade as the primary agent and inline completions.
Feature comparison
| Agentastic | Windsurf | |
|---|---|---|
| Form factor | Native macOS workspace (Swift) | VS Code fork (Electron) |
| Primary agent surface | CLI agents in parallel worktrees | Cascade chat + Supercomplete inline |
| Worktree-per-agent isolation | Yes | No (single workspace) |
| Built-in diff + review UI | Yes — Claude / Codex / CodeRabbit | Cascade explains changes inline |
| Bundled CLI agents | 30+ | Cascade plus your model |
| Bundle size | ~25 MB | ~500 MB |
Pricing
Agentastic
Free. BYO agent subscriptions.
Windsurf
Free tier with limited completions. Paid tiers from $15/user/mo.
Using them together
Run Windsurf as the editor in any Agentastic worktree, and use Agentastic to keep multiple Cascade-driven worktrees running side by side.
Frequently asked questions
Does Agentastic do inline completions like Supercomplete?
No. Agentastic delegates to CLI agents that you trigger, not character-by-character completions. Pair it with Windsurf or Copilot if you want both.
Can I review what Cascade changed in Agentastic?
If Cascade is run inside an Agentastic worktree, every change goes through Agentastic's diff viewer — and you can run Claude / Codex / CodeRabbit code review on it before merging.
How is the worktree-per-agent model different from Windsurf workspaces?
A Windsurf workspace is one editor session against one branch. An Agentastic worktree is its own checkout on its own branch, so two agents on the same repo never see each other's in-progress changes.
See also
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