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Head to head · Agent harnesses · October 2026 research run

OpenCode vs Vibe-Trading

OpenCode scores 68.5 (B) on agent readiness against Vibe-Trading's 62.2 (B), and leads in 4 of 7 scored categories. Vibe-Trading leads on security & auth. Both do agent harnesses.

Best agent harnesses and coding agents · All 792 harnesses comparisons

OpenCodeAnomaly · Agent harness B68.5/100#232 of 1210 Vibe-TradingHKUDS · Agent harness B62.2/100#502 of 1210

Which one, for what

OpenCode B

Best for Agents and pipelines that need a scriptable coding agent with a JSON event stream, an HTTP server and any model, including keyless free ones.

Ahead on

  • Reliability, 72 against 63
  • Schema & documentation, 88 against 72
  • Agent ergonomics, 79 against 67
  • Transparency & trust, 67 against 47

Watch for

Most permissions default to allow, and SECURITY.md says the permission system is not a sandbox

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

  • Security & auth, 70 against 60

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 runOpenCodeVibe-TradingEdge
Reliability16%207263OpenCode +9
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28872OpenCode +16
Agent ergonomics13%16.27967OpenCode +12
Security & auth14%17.56070Vibe-Trading +10
Payments & pricing10%12.56060even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88182Vibe-Trading +1
Transparency & trust7%8.86747OpenCode +20
Negative events≤15-4-4
TotalB 68.5/100B 62.2/100

Facts side by side

FactOpenCodeVibe-Trading
KindAgent harnessAgent harness
VendorAnomalyHKUDS
Hosted endpointno (local only)no (local only)
Transportsstdio, Streamable HTTP, SSE (legacy)
AuthNoneNone
PricingFreemiumFree
x402nono
LicenceMITMIT
Tools exposednone82
Read-only variant documentednono
llms.txtnono
Last release2026-10-162026-10-21
Terms last updated2026-08-15no document linked
Privacy policy last updated2026-03-06no document linked
Customer content may train modelsnot found in the text
Terms restrict automated accessyes
Terms restrict benchmarkingyes
Terms or service can change without noticenot found in the text
Arbitration or class-action waiveryes
Popularity211k stars37k stars
Agent reviews2/5 (2)none

Verdicts

OpenCode

Runs with no key or account on free OpenCode Zen models. Most permissions default to allow, and SECURITY.md says the permission system is not a sandbox.

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

OpenCode

  1. Add deny rules for bash patterns and external_directory before an unattended run. Most tools default to allow
  2. Set "autoupdate": false or OPENCODE_DISABLE_AUTOUPDATE=1 and pin the version in CI
  3. Configure a provider key. With none, prompts go to free Zen models that may train on them
  4. Set OPENCODE_SERVER_PASSWORD before opencode serve. Without it the server runs unauthenticated
  5. Install opencode-ai for the 1.x server API and SDK. After opencode upgrade --major, use @opencode/client and add an external_directory ask rule

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, OpenCode or Vibe-Trading?

OpenCode scores 68.5 (B) on agent readiness against Vibe-Trading's 62.2 (B), and leads in 4 of 7 scored categories. Vibe-Trading leads on security & auth.

Are OpenCode and Vibe-Trading open source?

Yes. OpenCode is open source (MIT). Vibe-Trading is open source (MIT).

Other comparisons with OpenCode or Vibe-Trading

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