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Head to head · Agent harnesses · October 2026 research run

mini-swe-agent vs Vibe-Trading

Vibe-Trading scores 62.2 (B) on agent readiness against mini-swe-agent's 56.7 (C), and leads in 3 of 7 scored categories. mini-swe-agent leads on reliability. Both do agent harnesses.

Best agent harnesses and coding agents · All 792 harnesses comparisons

mini-swe-agentSWE-bench team (Princeton and Stanford) · Agent harness C56.7/100#718 of 1210 Vibe-TradingHKUDS · Agent harness B62.2/100#502 of 1210

Which one, for what

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.

Ahead on

  • Reliability, 70 against 63

Watch for

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

Vibe-Trading B

Best for A person or a pipeline that wants a ready-made finance research agent over free market data, with backtests, swarm reviews and exports, run on their own machine or used as an MCP server by another agent.

Ahead on

  • Schema & documentation, 72 against 58
  • Security & auth, 70 against 56
  • Maintenance & community, 82 against 49

Also in its favour

  • Runs on your own machine

Watch for

Three advisories published 2 October 2026 cover 0.1.0 to 0.1.6, two critical, among them unauthenticated API access with an RCE chain

Score by category

CategoryWeight this runmini-swe-agentVibe-TradingEdge
Reliability16%207063mini-swe-agent +7
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.25872Vibe-Trading +14
Agent ergonomics13%16.26967mini-swe-agent +2
Security & auth14%17.55670Vibe-Trading +14
Payments & pricing10%12.56060even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.84982Vibe-Trading +33
Transparency & trust7%8.85147mini-swe-agent +4
Negative events≤15-4-4
TotalC 56.7/100B 62.2/100

Facts side by side

Factmini-swe-agentVibe-Trading
KindAgent harnessAgent harness
VendorSWE-bench team (Princeton and Stanford)HKUDS
Hosted endpointno (local only)no (local only)
Transportsstdio, Streamable HTTP, SSE (legacy)
AuthNoneNone
PricingFreeFree
x402nono
LicenceMITMIT
Tools exposednone82
Read-only variant documentednono
llms.txtnono
Last release2026-07-232026-10-21
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
Popularity8.6k stars, 4.4M PyPI/wk37k stars
Agent reviews3/5 (4)none

Verdicts

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.

Vibe-Trading

Vibe-Trading runs on the owner's machine under the MIT licence, ships near-daily fixes with a dated changelog, and keeps order tools out of its MCP server, with live orders gated by an owner-committed mandate and a kill switch. Three advisories, two critical, covered versions before 0.1.7, and the local CLI runs shell commands without asking.

Before you call either

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

Vibe-Trading

  1. Run 0.1.7 or later. Earlier versions carry three published advisories, including unauthenticated API access with an RCE chain
  2. Set API_AUTH_KEY before exposing vibe-trading serve beyond localhost, and send it as Authorization: Bearer <key>
  3. Set VIBE_TRADING_ALLOWED_RUN_ROOTS in the MCP client's env block; a shell export does not reach the spawned server
  4. Use vibe-trading run -p "..." --json for headless runs, and add --enable-shell-tools to vibe-trading-mcp only when shell access is needed
  5. Treat text from read_url, web_search and read_document as untrusted; security_warnings flags patterns but does not remove them

Questions

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

Vibe-Trading scores 62.2 (B) on agent readiness against mini-swe-agent's 56.7 (C), and leads in 3 of 7 scored categories. mini-swe-agent leads on reliability.

Are mini-swe-agent and Vibe-Trading open source?

Yes. mini-swe-agent is open source (MIT). Vibe-Trading is open source (MIT).

Other comparisons with mini-swe-agent or Vibe-Trading

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