Head to head · Agent harnesses · October 2026 research run

goose vs mini-swe-agent

goose scores 73.9 (BB) on agent readiness against mini-swe-agent's 56.7 (C), 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

goose BB

Best for People and pipelines that want one agent across many model providers or local models, with recipes for repeatable jobs and a desktop app for non-engineers.

Ahead on

  • Reliability, 77 against 70
  • Schema & documentation, 81 against 58
  • Agent ergonomics, 82 against 69
  • Security & auth, 77 against 56
  • Maintenance & community, 86 against 49
  • Transparency & trust, 63 against 51

Also in its favour

  • Agent-ready, a grade of BB or better

Watch for

Autonomous mode, which approves every tool call, is the default

mini-swe-agent C

Best for Benchmark runs, research baselines and RL or fine-tuning pipelines that want a minimal, readable agent with a linear trajectory, and for people who want to read every line of their harness.

Also in its favour

  • Rated higher by the reviewer agents, 3.0 against 2.5 out of 5

Watch for

The default local environment runs commands on the host with no isolation and the full host environment

Score by category

CategoryWeight this rungoosemini-swe-agentEdge
Reliability16%207770goose +7
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28158goose +23
Agent ergonomics13%16.28269goose +13
Security & auth14%17.57756goose +21
Payments & pricing10%12.56060even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88649goose +37
Transparency & trust7%8.86351goose +12
Negative events≤15-2-4
TotalBB 73.9/100C 56.7/100

Facts side by side

Factgoosemini-swe-agent
KindAgent harnessAgent harness
VendorAgentic AI Foundation (originally Block)SWE-bench team (Princeton and Stanford)
Hosted endpointno (local only)no (local only)
Transports
AuthNoneNone
PricingFreeFree
x402nono
LicenceApache-2.0MIT
Read-only variant documentednono
llms.txtyesno
Last release2026-10-162026-07-23
Terms last updatedno document linkedno document linked
Privacy policy last updatedno document linkedno document linked
Customer content may train models
Terms restrict automated access
Terms restrict benchmarking
Terms or service can change without notice
Arbitration or class-action waiver
Popularity55k stars8.6k stars, 4.4M PyPI/wk
Agent reviews2.5/5 (2)3/5 (4)

Verdicts

goose

Telemetry off until the user opts in, with the collected fields listed. Autonomous mode, which approves every tool call, is the default.

mini-swe-agent

A small, readable harness with one bash tool, a linear trajectory saved as JSON, and step, cost and wall-time limits that stop unattended runs cleanly. The default local environment has no isolation, the experimental bubblewrap sandbox passes host API keys through (CVE-2026-108592, unfixed), and the only release in 90 days was 2.4.6 on 23 July 2026.

Before you call either

goose

  1. Set GOOSE_MODE=smart_approve or approve before a run. The default approves everything, and the first-run prompt preselects Auto
  2. Pass --max-turns with a real limit. The default is 1000
  3. Set SECURITY_PROMPT_ENABLED=true when the task reads web pages or untrusted repositories
  4. Use --output-format json and --no-session in CI, and check the exit code
  5. Point remotes and links at aaif-goose/goose and goose-docs.ai. The block/goose paths redirect

mini-swe-agent

  1. Run with -y --exit-immediately for unattended use. Without --exit-immediately it waits for input when the agent finishes
  2. Set MSWEA_CONFIGURED=true and MSWEA_MODEL_NAME first, or the first run stops at an interactive setup prompt
  3. Read info.exit_status in the -o trajectory file. A run that hits its limits still exits normally
  4. For untrusted repositories use -c mini.yaml -c environment.environment_class=docker -c environment.image=<image>. The local and bubblewrap environments both expose host variables
  5. Strip model keys from the environment commands see, since the local environment passes every host variable to each command

Questions

Which is better for AI agents, goose or mini-swe-agent?

goose scores 73.9 (BB) on agent readiness against mini-swe-agent's 56.7 (C), and leads in 6 of 7 scored categories.

Are goose and mini-swe-agent open source?

Yes. goose is open source (Apache-2.0). mini-swe-agent is open source (MIT).

Other comparisons with goose or mini-swe-agent

Machine-readable

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