Comparison
Build A Harness vs Overplane
A factual side by side of two tools in Hosting & Devtools. Figures come from each product’s own site.
Build A Harness
ListedAielia is an open-source, self-hosted AI assistant that runs an 11-layer harness every turn and stops for your approval before sending email, paying, or running commands....
Overplane
ListedOverplane is an AI code generation and build system that verifies and safely compiles plain-language specs into working, verified code. Container-sandboxed agents,...
| Build A Harness | Overplane | |
|---|---|---|
| Category | Hosting & Devtools | Hosting & Devtools |
| Pricing model | Open Source | Open Source |
| Starting price | Not disclosed | Not disclosed |
| Free tier | No | Yes |
| Platforms | Not disclosed | Not disclosed |
| Techavy score | Not rated yet | Not rated yet |
About Build A Harness
Aielia is an open-source, self-hosted AI assistant that runs an 11-layer harness every turn and stops for your approval before sending email, paying, or running commands. Plus a visual builder that compiles to LangGraph, CrewAI, Mastra, or MS Agent Framework. Meet Aielia, she answers a quick question in one step, and stops for your approval before she sends an email, pays an invoice, or runs a command. A harness is the governance and reliability control plane around an autonomous agent, the agent proposes, the harness decides what happens next.
About Overplane
Overplane is an AI code generation and build system that verifies and safely compiles plain-language specs into working, verified code. Container-sandboxed agents, replayable builds, and multi-agent support. Overplane combines popular AI coding agents with containers, spec-driven development, and formal verification to create a safer and more reliable AI coding workflow. Overplane keeps the speed and fixes the rest in three moves: contain the agent, wrap it in a real build system, and verify the plan before the code exists.
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