Crystalvsgolutra
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
Crystal
Stravu · Agent harness
OSS
Panel
4.63 spec wins
- Reliability
- 4.3
- Usefulness
- 5.0
- Cost
- 6.5
- Longevity
- 2.5
“Still installable with one Homebrew command, which is the most alive thing about it.”
golutra
seekskyworld · Agent harness
OSSMCP
Panel
4.83 spec wins
- Reliability
- 3.7
- Usefulness
- 4.3
- Cost
- 7.2
- Longevity
- 4.2
“Transforms your CLI tools into a multi-agent team, but lacks a sandbox for isolated execution.”
Spec by spec
| Spec | Crystal | golutra |
|---|---|---|
| Architecture | ||
| Category | Agent harness | Agent harness |
| Runs | local | local |
| Platforms | macos, windows | windows, macos, linux |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | No | Yes |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | Yes | Yes |
| Multi-file edits | Yes | No |
| Git operations | YesEach session gets its own git worktree, and Crystal performs rebase and squash-to-main operations from the app. | No |
| Browser control | No | No |
| Sandboxed execution | No | No |
| Multi-agent orchestration | Yes | Yes |
| Headless / CI mode | No | No |
| Models | ||
| Backbone | via managed agents (Claude Code, OpenAI Codex) | Claude Code, Gemini CLI, Codex CLI, OpenCode, Qwen Code, OpenClaw |
| Bring your own model | No | Yes |
| Local models | No | No |
| Cost | ||
| Pricing model | free | free |
| Starts at | $0/mo | n/a |
| Free tier | Yes | Yes |
| Bring your own key | Yes | No |
| Openness | ||
| Open source | Yes | Yes |
| License | MIT | BSL-1.1 |
| GitHub stars | 3,123 | 3,853 |
Which one would each critic pick
| Critic | Crystal | golutra | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 4.5 | 6.0 | golutra — Golutra is a free desktop app for running multiple CLI agents in parallel, but its lack of file editing or sandboxing makes it more of a monitoring tool than a squad. |
| El Crítico | 4.3 | 5.3 | golutra — This tool gives unsandboxed terminal access to multiple AI agents, a significant security risk for any development environment. |
| El Profesor | 5.3 | 3.5 | Crystal — The method was parallel sampling made visible: several sessions attempt one task in separate worktrees, and the human compares diffs rather than transcripts. |
| La Inversora | 4.0 | 4.3 | golutra — This is a pre-revenue, open-source project with a clever UI, but no clear business model or moat; use it, but don't build your company's core workflows on it. |
| La Jefa | 3.8 | 4.8 | golutra — A free desktop application for orchestrating local CLIs is a tool for individuals, not a platform for teams. |
| El Hacker | 5.8 | 5.3 | Crystal — MIT is exactly why a deprecated tool is not automatically dead: the code is mine to build, and the Electron and pnpm stack means a fork is a weekend, not a rescue mission. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.