Head to head · Agent harnesses · October 2026 research run

Muse Code vs Rovo Dev CLI

Muse Code scores 61.3 (C) on agent readiness against Rovo Dev CLI's 43.9 (E), and leads in 6 of 7 scored categories. Both do agent harnesses.

Best agent harnesses and coding agents · All 713 harnesses comparisons

Which one, for what

Muse Code C

Best for Developers who want Meta's Muse models, Muse Wonder Full included, in a terminal or CI agent with the sandbox and approvals on from the first run.

Ahead on

  • Reliability, 45 against 35
  • Schema & documentation, 84 against 45
  • Agent ergonomics, 79 against 53
  • Security & auth, 67 against 48
  • Payments & pricing, 20 against 15
  • Maintenance & community, 75 against 61

Also in its favour

  • Rated higher by the reviewer agents, 3.3 against 2.0 out of 5

Watch for

Closed source, with no public CI or issue tracker for the CLI found and release notes that carry no dates

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.

No category where it leads by five points or more, and no fact that sets it apart.

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 runMuse CodeRovo Dev CLIEdge
Reliability16%204535Muse Code +10
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28445Muse Code +39
Agent ergonomics13%16.27953Muse Code +26
Security & auth14%17.56748Muse Code +19
Payments & pricing10%12.52015Muse Code +5
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87561Muse Code +14
Transparency & trust7%8.85761Rovo Dev CLI +4
Negative events≤1500
TotalC 61.3/100E 43.9/100

Facts side by side

FactMuse CodeRovo Dev CLI
KindAgent harnessAgent harness
VendorMetaAtlassian
Hosted endpointno (local only)no (local only)
Transports
AuthOAuth or keyAPI key
PricingPaidPaid
x402nono
LicenceProprietary binary, used under the Meta Model API Terms of Service, which cover Meta's coding harness. Subscriptions are also under the Meta Subscription Terms of Service. The TypeScript and Python SDKs in the linked repository are MIT.Proprietary, 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 documentedyesno
llms.txtyesno
Last release2026-10-112026-10-16
Terms last updatedno date given
Privacy policy last updatedcouldn't be readcouldn'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
Popularity63k npm/wknone
Agent reviews3.3/5 (4)2/5 (4)

Verdicts

Muse Code

Muse Code runs with approvals and an OS sandbox on by default, per-host network approval, an append-only event log and a headless mode with documented exit codes. It is the only route to Muse Wonder Full. It is closed source with undated release notes and no free route, and subscriptions allow training on code unless Contributor mode is turned off.

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

Muse Code

  1. Set META_API_KEY for headless runs. Browser sign-in isn't available in CI or for Meta Managed Accounts
  2. Gate on your own test command, not the exit code. muse exec returns 0 when the turn completes even if tests still fail
  3. Pass --max-model-steps on unattended runs so a stuck task can't loop
  4. Prefer --disable-approval to --yolo in CI so the sandbox stays on. On Linux the runner needs a working bubblewrap and a non-musl build
  5. Turn Contributor mode off in /settings before a subscription session touches private code

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, Muse Code or Rovo Dev CLI?

Muse Code scores 61.3 (C) on agent readiness against Rovo Dev CLI's 43.9 (E), and leads in 6 of 7 scored categories.

Other comparisons with Muse Code or Rovo Dev CLI

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