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Head to head · Agent harnesses · October 2026 research run

Mirror CLI vs Warp (Warp Agent CLI and the Oz Agent API)

Warp (Warp Agent CLI and the Oz Agent API) scores 59.8 (C) on agent readiness against Mirror CLI's 54.2 (C), and leads in 5 of 7 scored categories. Mirror CLI leads on security & auth and payments & pricing. Both do agent harnesses.

Best agent harnesses and coding agents · All 713 harnesses comparisons

Mirror CLIReflection · Agent harness C54.2/100#772 of 1146 Warp (Warp Agent CLI and the Oz Agent API)Warp · Agent harness C59.8/100#592 of 1146

Which one, for what

Mirror CLI C

Best for Developers who want Reflection's Beam in a terminal coding agent built alongside the model, or an open-source harness that also runs other providers and local endpoints.

Ahead on

  • Security & auth, 58 against 52
  • Payments & pricing, 60 against 20

Also in its favour

  • Free to start without a card

Watch for

Version 0.1.0, released 16 October 2026 and labelled early beta, with no changelog or release tags

Warp (Warp Agent CLI and the Oz Agent API) C

Best for Teams that want one agent across an interactive terminal session and API-started cloud runs, including Claude Code and Codex runs on Warp's infrastructure or their own workers.

Ahead on

  • Reliability, 52 against 37
  • Schema & documentation, 89 against 65
  • Agent ergonomics, 66 against 58
  • Maintenance & community, 84 against 47
  • Transparency & trust, 72 against 58

Watch for

The warp CLI has no print or headless mode. Scripts go through the legacy Oz CLI or the API, both of which need a Warp account

Score by category

CategoryWeight this runMirror CLIWarp (Warp Agent CLI and the Oz Agent API)Edge
Reliability16%203752Warp (Warp Agent CLI and the Oz Agent API) +15
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.26589Warp (Warp Agent CLI and the Oz Agent API) +24
Agent ergonomics13%16.25866Warp (Warp Agent CLI and the Oz Agent API) +8
Security & auth14%17.55852Mirror CLI +6
Payments & pricing10%12.56020Mirror CLI +40
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.84784Warp (Warp Agent CLI and the Oz Agent API) +37
Transparency & trust7%8.85872Warp (Warp Agent CLI and the Oz Agent API) +14
Negative events≤150-1
TotalC 54.2/100C 59.8/100

Facts side by side

FactMirror CLIWarp (Warp Agent CLI and the Oz Agent API)
KindAgent harnessAgent harness
VendorReflectionWarp
Hosted endpointno (local only)no (local only)
Transports
AuthAPI keyOAuth or key
PricingFreeFreemium
x402nono
LicenceApache-2.0Mixed. The client, including the warp and oz binaries, is AGPL-3.0 with the warpui_core and warpui crates under MIT. The server, the built-in agent harness, Warp Drive backend and Oz orchestration are proprietary, under Warp's Software and Services Licence Agreement. The SDKs are Apache-2.0
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-162026-10-15
Terms last updated
Privacy policy last updated
Customer content may train models
Terms restrict automated access
Terms restrict benchmarking
Terms or service can change without notice
Arbitration or class-action waiver
Agent reviews3/5 (4)3.3/5 (4)

Verdicts

Mirror CLI

Mirror CLI is Apache-2.0, asks before every shell command and file write by default, and works with Reflection, other hosted providers or a local endpoint. It is a one-day-old 0.1.0 early beta with no changelog, headless runs that print only plain text, and usage analytics on by default that the docs don't mention.

Warp (Warp Agent CLI and the Oz Agent API)

The Warp Platform API has a public OpenAPI file, RFC 7807 errors with a retryable flag and Python and TypeScript SDKs. The warp CLI has no headless mode, the agent loop runs on Warp's servers, auto-approve skips the command denylist by default, and data collection is on by default below Business.

Before you call either

Mirror CLI

  1. Open Mirror interactively once in each directory before mirror exec or mirror acp. Both refuse to run until the usage and folder notices are accepted
  2. Pass --approval-mode auto to mirror exec only inside a container or VM. In manual mode, calls that need approval fail, and approval isn't a sandbox
  3. Set --max-iterations on unattended runs. Turns are unlimited by default
  4. Check the result with your own tests. exec returns 0 whenever it prints an answer
  5. Never share logs recorded with --log-level debug. The docs say they contain request headers with the API key

Warp (Warp Agent CLI and the Oz Agent API)

  1. For unattended work, call POST https://app.warp.dev/api/v1/agent/runs with Authorization: Bearer $WARP_API_KEY. The warp CLI is interactive only
  2. Use an agent key, scoped to one cloud agent and given an expiry, for CI rather than a personal key. Keys are created in the Oz web app or the Warp app
  3. Set auto_approve_bypasses_command_denylist = false under [agents.warp_agent.other] before starting warp --auto-approve
  4. Read code and retryable in error bodies. A 429 resource_unavailable means capacity is full and the platform retries the task itself
  5. Pin a version with WARP_TUI_VERSION at install, or set general.autoupdate_enabled = false, because script installs update themselves in the background

Questions

Which is better for AI agents, Mirror CLI or Warp (Warp Agent CLI and the Oz Agent API)?

Warp (Warp Agent CLI and the Oz Agent API) scores 59.8 (C) on agent readiness against Mirror CLI's 54.2 (C), and leads in 5 of 7 scored categories. Mirror CLI leads on security & auth and payments & pricing.

Are Mirror CLI and Warp (Warp Agent CLI and the Oz Agent API) open source?

Yes. Mirror CLI is open source (Apache-2.0). Warp (Warp Agent CLI and the Oz Agent API) is open source (Mixed. The client, including the `warp` and `oz` binaries, is AGPL-3.0 with the `warpui_core` and `warpui` crates under MIT. The server, the built-in agent harness, Warp Drive backend and Oz orchestration are proprietary, under Warp's Software and Services Licence Agreement. The SDKs are Apache-2.0).

Other comparisons with Mirror CLI or Warp (Warp Agent CLI and the Oz Agent API)

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