Head to head · Agent harnesses · October 2026 research run
Emdash vs Sculptor
Emdash and Sculptor score within a point of each other on agent readiness, 53.9 (D) and 53.1 (D). Sculptor leads on security & auth and maintenance & community. Both do agent harnesses.
Best agent harnesses and coding agents · All 1500 harnesses comparisons
Which one, for what
Emdash D
Best for Developers who want parallel agents in worktrees, fed from their issue tracker, locally or over SSH.
Ahead on
- Reliability, 55 against 43
- Schema & documentation, 55 against 45
- Agent ergonomics, 55 against 50
Watch for
Telemetry on unless turned off in Settings or with TELEMETRY_ENABLED=false
Sculptor D
Best for Developers who want parallel coding agents in isolated workspaces and are fine with a research preview.
Ahead on
- Security & auth, 57 against 38
- Maintenance & community, 75 against 70
Watch for
Labelled an experimental research preview that may change drastically
Why the edge
Each category where one leads by five points or more, with the reason behind each side's score from its assessment. The numbers are in the table below; this is what they stand for.
Security & auth Sculptor +19
Emdash 38
Harness reading. Telemetry is described as optional and disabled in Settings or with TELEMETRY_ENABLED=false, which reads as on by default (15 of 30). Worktree per task and remote machines over SSH (10 of 20). No prompt-injection guidance (5). No audit log (5). No security policy file found (3). 15 + 10 + 5 + 5 + 3 = 38.
Sculptor 57
Harness reading. Product analytics, error reporting and session recording default to off in the user config, and the app asks for a telemetry level and privacy consent at first run; PostHog runs on the front end only for now (25 of 30). Each workspace is an isolated copy of the code (14 of 20). No prompt-injection guidance (5). No audit log (5). SECURITY.md (8). 25 + 14 + 5 + 5 + 8 = 57.
Reliability Emdash +12
Emdash 55
Local software. Homebrew cask and installers for macOS, Windows and Linux (20). A code-consistency check and release workflows; no test workflow found (10). GitHub issues and pull requests weren't read (GitHub's pages refuse these sessions), so that line is scored absent (0). Stable tags to v1.2.11, release notes on GitHub (10). Version 1.2.11 (15). 20 + 10 + 0 + 10 + 15 = 55.
Sculptor 43
Local software. Desktop downloads for Mac (Apple Silicon), Linux and Linux ARM64 (20). checks.yml and a PR gate run on the repository; pass state not read (15). GitHub issues and pull requests weren't read (GitHub's pages refuse these sessions), so that line is scored absent (0). sculptor-v tags up to v0.49.0, no changelog file (8). 0.x and labelled a research preview (0). 20 + 15 + 0 + 8 + 0 = 43.
Schema & documentation Emdash +10
Emdash 55
Harness reading. Docs site and a workspace server package (55).
Sculptor 45
Harness reading. A README, specs and agent docs in the repository; no API reference (45).
Agent ergonomics Emdash +5
Emdash 55
Harness reading. Issue intake from Linear, GitHub, Jira and others, diff review, pull requests and CI checks in one place, local or over SSH (55).
Sculptor 50
Harness reading. Workspaces as isolated copies, review and merge back, and built-in skills (50).
Maintenance & community Sculptor +5
Emdash 70
v1.2.11 on 6 November 2026 (30). v1.2.9, v1.2.10 and v1.2.11 within two weeks (20). GitHub issues and pull requests weren't read (GitHub's pages refuse these sessions), so that line is scored absent (0). Current installers and Homebrew cask (15). Release workflows, no test CI (5). 30 + 20 + 0 + 15 + 5 = 70.
Sculptor 75
Commits on 6 November 2026 and frequent tagged versions (30). More than three releases in 90 days (20). GitHub issues and pull requests weren't read (GitHub's pages refuse these sessions), so that line is scored absent; the README says Imbue can't take many outside contributions yet (0). Current official downloads (15). CI on pull requests (10). 30 + 20 + 0 + 15 + 10 = 75.
Score by category
| Category | Weight this run | Emdash | Sculptor | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 55 | 43 | Emdash +12 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 55 | 45 | Emdash +10 |
| Agent ergonomics | 13%16.2 | 55 | 50 | Emdash +5 |
| Security & auth | 14%17.5 | 38 | 57 | Sculptor +19 |
| Payments & pricing | 10%12.5 | 60 | 60 | even |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 70 | 75 | Sculptor +5 |
| Transparency & trust | 7%8.8 | 54 | 57 | Sculptor +3 |
| Negative events | ≤15 | 0 | 0 | |
| Total | D 53.9/100 | D 53.1/100 |
Facts side by side
| Fact | Emdash | Sculptor |
|---|---|---|
| Kind | Agent harness | Agent harness |
| Vendor | General Action, Inc. | Imbue, Inc. |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | ||
| Auth | None | None |
| Pricing | Free | Free |
| x402 | no | no |
| Licence | Apache-2.0 | MIT |
| Read-only variant documented | no | no |
| llms.txt | no | no |
| Last release | 2026-11-06 | 2026-11-06 |
| Terms last updated | no document linked | no document linked |
| Privacy policy last updated | no document linked | no document linked |
Verdicts
Emdash
A mature open-source app for parallel coding agents in Git worktrees, with issue intake from a dozen trackers and remote machines over SSH. Telemetry is on unless you turn it off, and no test workflow was found in the repository.
Sculptor
Imbue's open-source app for parallel coding agents in isolated workspaces, with telemetry off until you choose otherwise. It's an experimental research preview that warns of bugs and drastic changes, Mac and Linux only, with no changelog.
Before you call either
Emdash
- Launch with TELEMETRY_ENABLED=false if you don't want telemetry
- Use the SSH mode to keep agents on a remote machine
Sculptor
- Download from the README's links, connect a repository and create a workspace before prompting
- Review the diff before merging a workspace back to main
Questions
Which is better for AI agents, Emdash or Sculptor?
Emdash and Sculptor score within a point of each other on agent readiness, 53.9 (D) and 53.1 (D). Sculptor leads on security & auth and maintenance & community.
Are Emdash and Sculptor open source?
Yes. Emdash is open source (Apache-2.0). Sculptor is open source (MIT).
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- Emdash vs Rovo Dev CLI
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- Emdash vs Traycer
- Emdash vs Unstoppable
- Emdash vs Verdent
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- Emdash vs Warp (Warp Agent CLI and the Oz Agent API)
- Gemini CLI vs Sculptor
- GitHub Copilot CLI vs Sculptor
- goose vs Sculptor
- Harness² vs Sculptor
- HarnessRouter vs Sculptor
- Jules vs Sculptor
- Junie CLI vs Sculptor
- Kilo Code CLI vs Sculptor
- Kimi Code CLI vs Sculptor
- Kiro CLI vs Sculptor
- Letta vs Sculptor
- mini-swe-agent vs Sculptor
- MiniMax Code vs Sculptor
- Mistral Vibe CLI vs Sculptor
- Muse Code vs Sculptor
- OpenAI Agents API vs Sculptor
- OpenAI Codex vs Sculptor
- OpenCode vs Sculptor
- OpenHands vs Sculptor
- Orca vs Sculptor
- Paseo vs Sculptor
- Prime Agent vs Sculptor
- Qoder CLI vs Sculptor
- Qwen Code vs Sculptor
- Mirror CLI vs Sculptor
- Rovo Dev CLI vs Sculptor
- Sculptor vs T3 Code
- Sculptor vs Traycer
- Sculptor vs Unstoppable
- Sculptor vs Verdent
- Sculptor vs Vibe-Trading
- Sculptor vs Warp (Warp Agent CLI and the Oz Agent API)
- Clawboo vs Emdash
- Clawboo vs Sculptor
- CLI Manager vs Emdash
- CLI Manager vs Sculptor
- Emdash vs Harness
- Emdash vs Paperclip
- Emdash vs Parallax
- Harness vs Sculptor
- OpenMausBot vs Sculptor
- Paperclip vs Sculptor
- Parallax vs Sculptor
Machine-readable
- This page as Markdown
/compare/emdash-vs-sculptor.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/emdash.json·/api/v1/tools/sculptor.json - From a terminal
anchor compare emdash sculptor(the CLI) - Over MCP
compare_tools {"a": "emdash", "b": "sculptor"}at/mcp, no key