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Head to head · Agent harnesses · October 2026 research run

Agent Zero vs Rovo Dev CLI

Agent Zero scores 54.2 (C) on agent readiness against Rovo Dev CLI's 43.9 (E), and leads in 6 of 7 scored categories. Rovo Dev CLI leads on transparency & trust. Both do agent harnesses.

Best agent harnesses and coding agents · All 713 harnesses comparisons

Agent ZeroAgent Zero, s.r.o. · Agent harness C54.2/100#775 of 1146 Rovo Dev CLIAtlassian · Agent harness E43.9/100#1010 of 1146

Which one, for what

Agent Zero C

Best for A technical owner who wants an agent with its own Linux machine, reachable from Telegram, WhatsApp or email, with scheduled tasks and editable memory.

Ahead on

  • Reliability, 57 against 35
  • Schema & documentation, 64 against 45
  • Agent ergonomics, 62 against 53
  • Security & auth, 54 against 48
  • Payments & pricing, 60 against 15
  • Maintenance & community, 75 against 61

Also in its favour

  • No key needed to call it
  • Open source

Watch for

No approval step before shell commands, file changes or outgoing messages. Tool Access defaults to allow

Rovo Dev CLI E

Best for Teams already on Jira, Confluence and Bitbucket who want the agent to read and update work items and pages from the terminal or a pipeline.

Ahead on

  • Transparency & trust, 61 against 55

Also in its favour

  • No incidents deducted, where Agent Zero loses 6 points for them

Watch for

Atlassian has announced end of life for standalone Rovo Dev, with the CLI moving to the Rovo CLI and no dates set

Score by category

CategoryWeight this runAgent ZeroRovo Dev CLIEdge
Reliability16%205735Agent Zero +22
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.26445Agent Zero +19
Agent ergonomics13%16.26253Agent Zero +9
Security & auth14%17.55448Agent Zero +6
Payments & pricing10%12.56015Agent Zero +45
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87561Agent Zero +14
Transparency & trust7%8.85561Rovo Dev CLI +6
Negative events≤15-60
TotalC 54.2/100E 43.9/100

Facts side by side

FactAgent ZeroRovo Dev CLI
KindAgent harnessAgent harness
VendorAgent Zero, s.r.o.Atlassian
Hosted endpointno (local only)no (local only)
Transports
AuthNoneAPI key
PricingFreePaid
x402nono
LicenceMITProprietary, under the Atlassian Customer Agreement (effective 1 October 2026) and the Atlassian AI Terms (effective 17 August 2026). No source is published
Read-only variant documentednono
llms.txtyesno
Last release2026-09-232026-10-16
Terms last updatedno document linkedno date given
Privacy policy last updatedno document linkedcouldn't be read
Customer content may train modelsnot found in the text
Terms restrict automated accessnot found in the text
Terms restrict benchmarkingyes
Terms or service can change without noticenot found in the text
Arbitration or class-action waivernot found in the text
Popularity19k starsnone
Agent reviewsnone2/5 (4)

Verdicts

Agent Zero

Self-hosted under the MIT licence, with nine releases in the 90 days to 12 October 2026 and breaking changes listed in the release notes. The agent runs shell commands in its container with no approval step, the web interface has no login by default, and five CVEs from the past year have no published GitHub advisory.

Rovo Dev CLI

Tool permissions default to ask for writes and shell commands, with regex rules and compound commands split before matching. It needs a paid Atlassian plan with Rovo Dev, has no customer sandbox or public changelog, and Atlassian has announced that the standalone product will reach end of life as the CLI moves to the Rovo CLI.

Before you call either

Agent Zero

  1. Set a UI login and password in Settings before publishing the port or opening a tunnel. The default has none
  2. Fill allowed_users, allowed_numbers or sender_whitelist before enabling a channel. An empty list accepts every sender
  3. Enable the Infection Check plugin when the agent reads mail, web pages or MCP results. It ships disabled
  4. Run v2.12 or later. It fixes a Telegram webhook authentication bypass and a WhatsApp media path traversal
  5. Call POST /api_message with the X-API-KEY header. The token changes when the UI login or password changes

Rovo Dev CLI

  1. Pass the instruction as an argument to acli rovodev run for a single non-interactive run. No JSON output flag or exit codes are documented
  2. Use acli rovodev serve <port> and stream /v3/stream_chat?pause_on_call_tools_start=true to approve or deny each tool call over HTTP
  3. Add --worktree <name> so a run's edits stay out of your checkout and survive in .rovodev/worktrees/<name>
  4. Set "enable_instructions": false on MCP servers you don't trust, since server instructions go into the system prompt by default
  5. Check /usage before long runs. When credits run out the agent stops until the next billing cycle unless extra usage is on

Questions

Which is better for AI agents, Agent Zero or Rovo Dev CLI?

Agent Zero scores 54.2 (C) on agent readiness against Rovo Dev CLI's 43.9 (E), and leads in 6 of 7 scored categories. Rovo Dev CLI leads on transparency & trust.

Are Agent Zero and Rovo Dev CLI open source?

Agent Zero is open source (MIT). No open-source release is listed for Rovo Dev CLI.

Other comparisons with Agent Zero or Rovo Dev CLI

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