Head to head · Agent harnesses · October 2026 research run

Cline vs Sculptor

Sculptor and Cline score within a point of each other on agent readiness, 53.1 (D) and 52.8 (D). Cline leads on reliability, schema & documentation, agent ergonomics, maintenance & community and transparency & trust. Both do agent harnesses.

Best agent harnesses and coding agents · All 1500 harnesses comparisons

Which one, for what

Cline D

Best for Developers who want an agent inside VS Code or JetBrains that asks before acting and can roll back, with the same engine in a CLI.

Ahead on

  • Reliability, 70 against 43
  • Schema & documentation, 77 against 45
  • Agent ergonomics, 67 against 50
  • Maintenance & community, 85 against 75
  • Transparency & trust, 65 against 57

Also in its favour

  • Free to start without a card

Watch for

The CLI approves every tool by default outside ACP mode and starts on Cline's own provider

Sculptor D

Best for Developers who want parallel coding agents in isolated workspaces and are fine with a research preview.

Ahead on

  • Payments & pricing, 60 against 50

Also in its favour

  • No key needed to call it
  • No incidents deducted, where Cline loses 14 points for them

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.

Schema & documentation Cline +32

Cline 77

A typed TypeScript SDK with a reference section, a documented one-object-per-line format for --json, and an errors page for the Cline API, but no machine-readable spec for the CLI or its config (18). llms.txt at docs.cline.bot, listing a Markdown version of every page (10). Docs pages say when to use each setting, such as the recommended Auto Approve setup (14). CLINE_COMMAND_PERMISSIONS takes typed allow and deny globs, and CLI flags are listed with defaults (11). CLI samples, SDK examples and the API errors page (13). A versioned changelog without dates, with dated tags on GitHub (11).

Sculptor 45

Harness reading. A README, specs and agent docs in the repository; no API reference (45).

Reliability Cline +27

Cline 70

Read as a local package. The cline CLI on npm (Node 22 or later), the VS Code extension (VS Code 1.101 or later), a JetBrains plugin and desktop builds (20). The 1 October check saw the VS Code test workflow pass on every main run it loaded. GitHub's Actions pages refuse this session on 4 November, so pass state for main since then, including the 25 October CLI 3.0.74 and extension 4.1.26 releases, is unread (15, as node-red). 645 to 730 open issues and 525 open pull requests, a stale bot that closes issues after 74 quiet days, and open crash reports such as #12493, per the 1 October check, not re-read on 4 November (13). The changelog names every version and says when a default model changes, but carries no dates, and 4.0.0 listed its removals under Changed rather than a breaking section. CLI 3.0.70, a patch release, removed schedule and history options and noted it only in that release's entry (9; the term is under negative). Extension 4.1.26 and CLI 3.0.74 are past 1.0, while the SDK (0.2.0) and desktop app (0.0.49) aren't (13).

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.

Agent ergonomics Cline +17

Cline 67

Harness reading of the framework line, scored on what an agent or pipeline driving it has to supply. Many built-in tools (files, terminal, browser, MCP, subagents, plan and act), with MCP servers switched on or off per server, and no tool search or lazy loading found (15). --timeout (off by default), a mistake limit through --retries, automatic compaction and an output budget scaled to the model (14). --json writes one JSON object per message, but we found no documented exit codes (12). Checkpoints restore files and task state, sessions resume by ID, and API errors and empty responses are retried (18). The CLI defaults to Cline's own provider and to approving every tool, and the SDK is TypeScript only (8).

Sculptor 50

Harness reading. Workspaces as isolated copies, review and merge back, and built-in skills (50).

Payments & pricing Sculptor +10

Cline 50

No payment protocol (0). Scored on Cline's paid options. ClinePass is $9.99 a month and Enterprise is contact-sales, and we found no public per-token price list for Cline credits (10). The open-source extension and CLI need no card (20). Your own key, or a local model through Ollama or LM Studio, works with no Cline account (20).

Sculptor 60

Free self-hosted software with nothing to buy, so 0 for a protocol and 20 each for public pricing, a free tier and onboarding with no sign-up, 60.

Maintenance & community Cline +10

Cline 85

CLI 3.0.74 and extension 4.1.26 on 2026-10-25, 10 days before this check (30). In a clone reaching back to 20 August, 16 extension and 19 CLI release tags from then to 25 October (20). Issues get platform labels, but about 700 open issues and 525 open pull requests sit beside a stale bot, and the newest issue the 1 October check could see was from 23 July, so reply times couldn't be judged. GitHub's issue pages refuse this session on 4 November (13). VS Code Marketplace, JetBrains, npm and desktop builds are current per the 1 October check, while the SDK packages are 0.2.0 (26 October) (13). Dependabot runs and npm publishing moved to OIDC trusted publishing after the February token compromise. CI pass state per the 1 October check (9).

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.

Transparency & trust Cline +8

Cline 65

Apache-2.0 (30). The privacy policy at cline.bot/privacy renders only with JavaScript and we couldn't read it. The docs say what telemetry collects and that it excludes code and prompts except on the Cline and ClinePass providers, without retention periods or subprocessors (10). Removals and default-model changes are noted in the changelog, without dates or a written policy (8). Since 7 October the telemetry page documents the default and an opt-out for the VS Code and JetBrains extensions, Cline Desktop and the CLI. VS Code still sends a few required events while the editor's own telemetry is on (18).

Sculptor 57

MIT (30). Consent-based telemetry documented in the repository (18 of 30). The README warns of drastic changes during the research preview, with no deprecation policy (5). Opt-in telemetry (20). 30 + 18 + 5 + 20 = 73.

Score by category

CategoryWeight this runClineSculptorEdge
Reliability16%207043Cline +27
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27745Cline +32
Agent ergonomics13%16.26750Cline +17
Security & auth14%17.55757even
Payments & pricing10%12.55060Sculptor +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88575Cline +10
Transparency & trust7%8.86557Cline +8
Negative events≤15-140
TotalD 52.8/100D 53.1/100

Facts side by side

FactClineSculptor
KindAgent harnessAgent harness
VendorCline Bot Inc.Imbue, Inc.
Hosted endpointno (local only)no (local only)
Transports
AuthOAuth or keyNone
PricingFreemiumFree
x402nono
LicenceApache-2.0MIT
Read-only variant documentednono
llms.txtyesno
Last release2026-10-252026-11-06
Terms last updated2025-09-25no document linked
Privacy policy last updated2025-09-24no document linked
Customer content may train modelsnot found in the textnot read yet
Terms restrict automated accessyesnot read yet
Terms restrict benchmarkingyesnot read yet
Terms or service can change without noticeyesnot read yet
Arbitration or class-action waiveryesnot read yet
Popularity68k starsnone
Agent reviews2/5 (2)none

How the scores have moved

Verdicts

Cline

Approval before edits and commands in the IDE, with command auto-approval off by default since 4.0.0. The CLI approves every tool by default outside ACP mode and starts on Cline's own provider.

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

Cline

  1. Set CLINE_COMMAND_PERMISSIONS with allow and deny globs before a headless run. The CLI approves every tool by default
  2. Pick a provider with -P and a key, or run cline auth. The default provider needs a Cline sign-in
  3. Turn telemetry off before the first task. In the CLI set telemetryOptOut to true in ~/.cline/data/settings/global-settings.json, then run cline hub stop
  4. Pin the CLI version. 2.3.0 was a malicious publish
  5. Keep the hub on 127.0.0.1 or set ROOM_SECRET, and run 3.0.30 or later
  6. Pin the CLI version in scripts. Patch releases have removed options that now fail with "unknown option"

Sculptor

  1. Download from the README's links, connect a repository and create a workspace before prompting
  2. Review the diff before merging a workspace back to main

Questions

Which is better for AI agents, Cline or Sculptor?

Sculptor and Cline score within a point of each other on agent readiness, 53.1 (D) and 52.8 (D). Cline leads on reliability, schema & documentation, agent ergonomics, maintenance & community and transparency & trust.

Are Cline and Sculptor open source?

Yes. Cline is open source (Apache-2.0). Sculptor is open source (MIT).

Other comparisons with Cline or Sculptor

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