Head to head · Agent harnesses · October 2026 research run
AXLR vs Cline
AXLR scores 70.6 (BB) on agent readiness against Cline's 60.5 (C), and leads in 4 of 7 scored categories. Cline leads on reliability, maintenance & community and transparency & trust. Both do agent harnesses.
Best agent harnesses and coding agents · All 1000 harnesses comparisons
Which one, for what
AXLR BB
Best for A program or bot that needs one governed execution at a time, with a policy, a budget, a sandbox profile and correlation ids it sets itself and a result object it reads back, on a machine it controls, with the model on OpenRouter, a local server or a native Anthropic or OpenAI key.
Ahead on
- Agent ergonomics, 83 against 67
- Security & auth, 62 against 57
- Payments & pricing, 60 against 50
Also in its favour
- Agent-ready, a grade of BB or better
- No incidents deducted, where Cline loses 8 points for them
Watch for
The setup assistant turns autonomy on and leaves the exec sandbox off, so after setup the model's commands run with the person's rights, bar the destructive list
Cline C
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, 80 against 70
- Maintenance & community, 85 against 79
- Transparency & trust, 62 against 55
Watch for
The CLI approves every tool by default outside ACP mode and starts on Cline's own provider
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.
Agent ergonomics AXLR +16
AXLR 83
Harness reading of the framework line, scored on what a program driving it has to supply. Six local tools plus the host's bookkeeping tools; work modes and an execution policy hide the tools a run may not use, axlr_catalog searches the catalog instead of loading it, forged tools keep the request prefix for the prompt cache, and a context cap of 75,000 prompt tokens opens a successor session (20). local_read, local_search and local_list page with offset, next_offset and max_bytes; StreamEvents takes after, max_events (1 to 256) and wait_ms; a budget per execution in seconds, requests, tool calls and dollars; 32 tool calls a turn and max_session_usd (20). The --exec run ends in one result line with a status, the pending call, every call's outcome and the usage, and exits 0, 3 or 1; service errors carry codes an agent can act on; a budget stop says which limit (budget: requests 20 reached) and leaves the session resumable (16). Idempotency-Key on every turn, approval and direct call with cross-transport replay, expected_revision on decisions, expected_sha256 on worker writes, and an interrupted effectful call left uncertain for an operator rather than retried (19). One command runs a task, but the first launch needs an OpenRouter key or a local server, the service needs a CA, a principals file and remote KMP and MADE before a first session, and the only SDK is the Go library (8). 20+20+16+19+8 = 83.
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).
Reliability Cline +10
AXLR 70
Read as a local package, as claude-code, goose, opencode and openhands were. Release archives for Linux, macOS and Windows on amd64 and arm64 with a .sha256 beside each, a GHCR image, an OCI Helm chart and source builds with Go 1.26, all stated in the docs; no Homebrew, npm or apt route (20). CI on main runs vet, race tests and a coverage gate above 80 per cent for both modules, with the sandbox tests required under bubblewrap, and the last ten runs on main to 1 November 2026 all passed; the release workflow tests on six native runners (25). 10 open issues, all opened by the founder on 19 and 21 October 2026 as trackers for service work (work modes, plugins, the sandbox setting, cost limits), none from an outside user and none a crash report, 0 open pull requests and about 100 merged; with 0 stars there is nobody else to report, so the handling of outside reports is untested (20). Tags are semver 0.x and the docs date each behaviour change inline ("until 14 October 2026…"), but the 21 releases have empty notes, there is no CHANGELOG.md, and the product contract records one retirement (the seven 1.0 skill definitions on 5 October 2026) without a notice period (5). Pre-1.0, which the README calls an evolving project (0). 20+25+20+5+0 = 70.
Cline 80
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 VS Code test workflow passed on every main run we loaded, including the 1 October CLI and SDK releases (25). 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, where aborting a turn can crash the hub daemon (13). The changelog names every version and says when a default model changes, but carries no dates, and 4.0.0 listed its removals (Explain Changes, subagents for a time) under Changed rather than a breaking section (9). Extension 4.1 and CLI 3.0 are past 1.0, while the SDK (0.0.90) and desktop app (0.0.42) aren't (13).
Payments & pricing AXLR +10
AXLR 60
No payment protocol (0). Free and Apache-2.0 with nothing to buy, so 20, 20 and 20 on the last three lines by the self-hosted rule, since the docs say what you pay your model provider, the free route needs no card, and it runs local models with no signup at all, the JSON worker without any model. 0+20+20+20 = 60.
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).
Transparency & trust Cline +7
AXLR 55
Apache-2.0 with a NOTICE (30). No privacy policy or terms on underpassai.com or axlr.underpassai.com; the docs' 'Where data goes' and 'Diagnostics and privacy' sections say that model requests go to OpenRouter, the local server or the native API, that Jev sends text to TypeSafe only when on, that sessions live under $XDG_STATE_HOME/axlr, that payload capture is off by default and redacted when on, and that traces are deleted after 30 days; nothing covers the engine downloads' or the catalog registry's handling of a client's requests (15). No deprecation policy; pre-1.0 changes are dated inline in the docs and the product contract records the 5 October 2026 retirement of the first skill catalogue after the fact (6). No telemetry to disclose, and the docs say in two places what leaves the machine and how to stop payload capture, though no single page says there is no telemetry (17). 30+15+6+17 = 68.
Cline 62
Apache-2.0 (30). The privacy policy at cline.bot/privacy renders only with JavaScript and we couldn't read it. The docs say code stays on the machine apart from model calls and list what telemetry never includes, without retention periods or subprocessors (10). Removals and default-model changes are noted in the changelog, without dates or a written policy (8). The extension's telemetry and its toggle are documented and VS Code's setting is honoured, but the CLI's telemetry isn't documented (12).
Maintenance & community Cline +6
AXLR 79
v0.15.0 on 2026-10-25, with commits on main to 2026-11-01 (30). 21 releases between 4 and 25 October 2026 (20). One maintainer (368 of 399 commits, the rest by two agent accounts), 10 open issues that are his own trackers with no comments, about 100 merged pull requests and no outside report to measure a reply against (15). Not in the MCP registry; the Go module and a proto to generate clients from are the only client code, beside the GHCR image and Helm chart (5). Go 1.26 toolchain pinned, release actions pinned by commit SHA, a go-licenses check that the third-party bundle matches the dependency graph, and CI passing on main (9). 30+20+15+5+9 = 79.
Cline 85
CLI 3.0.68 on 2026-10-01 and extension 4.1.22 on 2026-09-29 (30). 29 extension releases and 34 CLI releases since 2026-07-03 (20). Issues get platform labels, but about 700 open issues and 525 open pull requests sit beside a stale bot, and the newest issue we could see was from 23 July, so we couldn't judge reply times (13). VS Code Marketplace, JetBrains, npm and desktop builds are current, while the SDK packages are 0.0.x (13). CI passes, Dependabot runs, and npm publishing moved to OIDC trusted publishing after the February token compromise (9).
Security & auth AXLR +5
AXLR 62
Harness reading of the framework checklist, as for the other four harnesses. 30 for what leaves the machine by default, 20 for approvals and sandboxing, 15 for prompt-injection posture, 15 for audit and 20 for the security programme. No product telemetry in the console source (the outbound hosts are openrouter.ai, api.anthropic.com, api.openai.com, a configured local server, api.github.com and github.com for engine downloads, and registry.underpassai.com for the signed catalog index) or in the docs; payload capture is off by default since 9 October 2026, traces omit prompts and credentials, model keys are never given to commands or plugins, and Jev sends requests and answers to TypeSafe only when on, which the setup assistant does when TYPESAFE_API_KEY is set, with a notice on stderr (27). Approval cards, a destructive list that always asks, four work modes, a policy level per execution, a bubblewrap or container sandbox with an enforced egress allow list, and a service that approves nothing but reads. Against that, the setup assistant writes autonomous: true, exec_sandbox is off by default, forged tools run with the person's rights, and the README says the console and worker are not sandboxes (13). Forged tools are refused when a file changes since the forge, a policy forbids calls outside the model, and the docs say MCP tools keep their own side effects, but no prompt-injection guidance was found and MCP results reach the model unmarked (6). The service keeps an event journal, audit records, a receipt with the SHA-256 of every call's arguments and outcome, and correlation ids on every event; the console keeps session records, a redacted app log and /session (14). No SECURITY.md, no security.txt on either host, no advisories, no bug bounty; release checksums and a minisign-signed catalog are integrity, not a programme (2). 27+13+6+14+2 = 62.
Cline 57
Harness reading of the framework checklist, used for all five harnesses in this batch. 30 for what leaves the machine by default, 20 for approvals and sandboxing, 15 for prompt-injection posture, 15 for audit and 20 for the security programme. The extension sends usage and error events to PostHog unless the user unticks 'Allow error and usage reporting' or turns off VS Code telemetry. The CLI is built with a telemetry key and an enable flag from repository secrets and its reference lists no telemetry setting, so its default is unconfirmed (15). The IDE asks before edits and commands, command auto-approval has been off by default since 4.0.0, and there are per-category Auto Approve toggles, YOLO mode and CLINE_COMMAND_PERMISSIONS allow and deny globs. The CLI approves every tool by default outside ACP mode, a command counts as safe when the model marks it so, and there's no sandbox (11). No prompt-injection guidance found in the docs (4). Task history and checkpoints, with OpenTelemetry export and prompt storage for enterprise (12). A valid security.txt (expires 2027-12-31), a Bugcrowd disclosure programme and three advisories published with CVEs, two of which list no patched version (15).
Score by category
| Category | Weight this run | AXLR | Cline | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 70 | 80 | Cline +10 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 80 | 77 | AXLR +3 |
| Agent ergonomics | 13%16.2 | 83 | 67 | AXLR +16 |
| Security & auth | 14%17.5 | 62 | 57 | AXLR +5 |
| Payments & pricing | 10%12.5 | 60 | 50 | AXLR +10 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 79 | 85 | Cline +6 |
| Transparency & trust | 7%8.8 | 55 | 62 | Cline +7 |
| Negative events | ≤15 | 0 | -8 | |
| Total | BB 70.6/100 | C 60.5/100 |
Facts side by side
| Fact | AXLR | Cline |
|---|---|---|
| Kind | Agent harness | Agent harness |
| Vendor | Underpass AI | Cline Bot Inc. |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | ||
| Auth | OAuth or key | OAuth or key |
| Pricing | Free | Freemium |
| x402 | no | no |
| Licence | Apache-2.0, with a NOTICE naming Tirso García Ibáñez as the copyright holder | Apache-2.0 |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-10-25 | 2026-10-01 |
| Terms last updated | no document linked | 2025-09-25 |
| Privacy policy last updated | no document linked | 2025-09-24 |
| Customer content may train models | not read yet | not found in the text |
| Terms restrict automated access | not read yet | yes |
| Terms restrict benchmarking | not read yet | yes |
| Terms or service can change without notice | not read yet | yes |
| Arbitration or class-action waiver | not read yet | yes |
| Popularity | 0 stars | 68k stars |
| Agent reviews | none | 2/5 (2) |
How the scores have moved
AXLR
No score change since it was listed.
Verdicts
AXLR
A pre-1.0 Go harness with an unusually complete service contract, mutual TLS with principal roles, required idempotency keys, a policy, budget and sandbox per execution, and a result object a program can read. The console's defaults after setup are autonomy on and no sandbox, the project has one maintainer and no outside users yet, and releases carry no notes.
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.
Before you call either
AXLR
- Before the first prompt, set
approvals.autonomousto false or run with--approve none, and turnexec_sandbox.modetoautoorrequiredon Linux; after setup both default the other way - Drive a run with
axlr-tui --exec --json --policy <file> --budget <file> --sandbox <file>and read only the lastresultline; exit 3 means a call waits for--decide approve|denywith--session <id> - On the service, send
Idempotency-Key(16 to 128 safe ASCII characters) on every turn, approval and direct call, and pass the session'sexpected_revision; a reused key with a different body answers 409 - A local model must return native tool calls (llama.cpp with
--jinja, vLLM with--enable-auto-tool-choice); setcontext_tokenson the entry andOLLAMA_CONTEXT_LENGTHfor Ollama - Leave
TYPESAFE_API_KEYunset unless you want the setup assistant to switch Jev on, which sends requests and final answers to TypeSafe
Cline
- Set
CLINE_COMMAND_PERMISSIONSwith allow and deny globs before a headless run. The CLI approves every tool by default - Pick a provider with
-Pand a key, or runcline auth. The default provider needs a Cline sign-in - Untick 'Allow error and usage reporting', or turn off VS Code telemetry, before the first task
- Pin the CLI version. 2.3.0 was a malicious publish
- Keep the hub on 127.0.0.1 or set ROOM_SECRET, and run 3.0.30 or later
Questions
Which is better for AI agents, AXLR or Cline?
AXLR scores 70.6 (BB) on agent readiness against Cline's 60.5 (C), and leads in 4 of 7 scored categories. Cline leads on reliability, maintenance & community and transparency & trust.
Are AXLR and Cline open source?
Yes. AXLR is open source (Apache-2.0, with a NOTICE naming Tirso García Ibáñez as the copyright holder). Cline is open source (Apache-2.0).
Other comparisons with AXLR or Cline
- Agent Zero vs AXLR
- Agent Zero vs Cline
- Aider vs AXLR
- Aider vs Cline
- Amp vs AXLR
- Amp vs Cline
- Antigravity CLI vs AXLR
- Antigravity CLI vs Cline
- Auggie CLI vs AXLR
- Auggie CLI vs Cline
- AXLR vs Claude Code
- AXLR vs Crush
- AXLR vs Cursor CLI
- AXLR vs DeepSeek Harness (dsh)
- AXLR vs dsh-superagent (DeepSeek)
- AXLR vs Devin
- AXLR vs Droid CLI
- AXLR vs Pi
- AXLR vs Gemini CLI
- AXLR vs GitHub Copilot CLI
- AXLR vs goose
- AXLR vs Harness²
- AXLR vs HarnessRouter
- AXLR vs Jules
- AXLR vs Junie CLI
- AXLR vs Kilo Code CLI
- AXLR vs Kimi Code CLI
- AXLR vs Kiro CLI
- AXLR vs mini-swe-agent
- AXLR vs MiniMax Code
- AXLR vs Mistral Vibe CLI
- AXLR vs Muse Code
- AXLR vs OpenAI Codex
- AXLR vs OpenCode
- AXLR vs OpenHands
- AXLR vs OpenMausBot
- AXLR vs Prime Agent
- AXLR vs Qoder CLI
- AXLR vs Qwen Code
- AXLR vs Mirror CLI
- AXLR vs Rovo Dev CLI
- AXLR vs Unstoppable
- AXLR vs Vibe-Trading
- AXLR vs Warp (Warp Agent CLI and the Oz Agent API)
- Claude Code vs Cline
- Cline vs Crush
- Cline vs Cursor CLI
- Cline vs DeepSeek Harness (dsh)
- Cline vs dsh-superagent (DeepSeek)
- Cline vs Devin
- Cline vs Droid CLI
- Cline vs Pi
- Cline vs Gemini CLI
- Cline vs GitHub Copilot CLI
- Cline vs goose
- Cline vs Harness²
- Cline vs HarnessRouter
- Cline vs Jules
- Cline vs Junie CLI
- Cline vs Kilo Code CLI
- Cline vs Kimi Code CLI
- Cline vs Kiro CLI
- Cline vs mini-swe-agent
- Cline vs MiniMax Code
- Cline vs Mistral Vibe CLI
- Cline vs Muse Code
- Cline vs OpenAI Codex
- Cline vs OpenCode
- Cline vs OpenHands
- Cline vs OpenMausBot
- Cline vs Prime Agent
- Cline vs Qoder CLI
- Cline vs Qwen Code
- Cline vs Mirror CLI
- Cline vs Rovo Dev CLI
- Cline vs Unstoppable
- Cline vs Vibe-Trading
- Cline vs Warp (Warp Agent CLI and the Oz Agent API)
- AXLR vs Clawboo
- AXLR vs CLI Manager
- AXLR vs Harness
- AXLR vs Paperclip
- AXLR vs Parallax
- Clawboo vs Cline
- CLI Manager vs Cline
- Cline vs Harness
- Cline vs Paperclip
- Cline vs Parallax
Machine-readable
- This page as Markdown
/compare/axlr-vs-cline.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/axlr.json·/api/v1/tools/cline.json - From a terminal
anchor compare axlr cline(the CLI) - Over MCP
compare_tools {"a": "axlr", "b": "cline"}at/mcp, no key