Terminal-first harness workflow
SuperQode centers the workflow in a terminal and supports both TUI and CLI use, so users can browse, connect, and operate without switching between separate products.
SuperQode
Freemium
SuperQode is an open-source harness layer for coding agents that lets users discover, build, run, evaluate, and optimize agent harnesses from a single terminal. It supports interoperability across A2A, ACP, MCP, and UHP, so teams can keep using their existing coding agents and models.
What is SuperQode?
SuperQode is a harness layer for coding agents that sits around the agent rather than replacing it. The product is designed to help users discover, build, run, evaluate, and optimize coding-agent harnesses from one terminal while keeping interoperability across A2A, ACP, MCP, and UHP.
The site positions SuperQode as terminal-first and open source, with a workflow that can connect an agent, browse the Harness Hub, and call an A2A agent in the same session. It also emphasizes portable evidence, versioned harness specifications, and explicit ownership of the loop, including configuration, context, memory, tools, policy, and evaluation criteria.
What can SuperQode do?
Interoperability across multiple protocols
The product supports A2A, ACP, MCP, and UHP, allowing agents, tool servers, and harness descriptions to be used across different interfaces and transports.
Harness Hub catalogue
The Hub exposes a browsable catalogue of 104 coding agent harnesses, including open source and proprietary entries, with runtime, setup, provenance, and licence shown up front.
A2A agent with ranked shortlist output
The hosted A2A agent returns a vendor-neutral shortlist of third-party coding agents and harnesses from the Hub, with SuperQode’s own harnesses excluded and disclosed separately.
Optimization and evaluation tools
The product includes harness benchmark, eval, promote, and drift commands, plus optimizer flows such as GEPA Omni, HarnessBench, and SkillOpt for comparing candidates and promoting a chosen configuration.
Portable HarnessSpec ownership
SuperQode stores the loop as a versioned HarnessSpec beside the code, covering memory, tools, sandbox, approvals, and evaluation criteria so the setup can be inspected and re-run.
Use Cases
“Selecting a coding agent for a repository”
A team can ask the A2A agent which coding agents or harnesses fit a repository or task class, then review a ranked shortlist before choosing what to run.
“Benchmarking harness options on real work”
Design partners can compare candidates on their own repository using the same spec, sandbox, and gates, then review pass rate, cost, latency, and review burden.
“Running a coding agent from one terminal”
Users can connect providers such as Codex, Claude, Copilot, or local models and work through the same terminal session instead of managing separate tools.
“Serving or self-hosting an A2A agent”
Teams can publish a card, serve their own harness as an A2A agent, or use the hosted endpoint when they want agent-to-agent discovery and callability.
“Tracking changes to a harness over time”
Teams can rerun benchmark and drift checks when a model, harness, or spec changes, then decide whether to promote a new candidate.
Frequently Asked Questions
What does SuperQode actually do?
It provides a harness layer for coding agents: users can connect agents, choose or rank harnesses, benchmark them, and run or serve them through terminal-based workflows.
Can SuperQode work with existing coding agents?
Yes. The site says users can keep the coding agent they already pay for and use SuperQode as the layer around it.
Does SuperQode support self-hosting?
Yes. The A2A agent page says the same server ships in the open source package and can be self-hosted with your own secret and model.
What does the A2A agent return?
It returns a vendor-neutral shortlist of third-party coding agents and harnesses from the Hub, rather than sending a repository or exposing SuperQode’s own harnesses as the ranking basis.
Is there public pricing information?
The pricing page returns a 404, but the product pages describe open source software, a free design-partner path, and hosted or keyed A2A access as separate operating modes.
Quick Facts
- Category
- Developer Tool
- Secondary categories
- AI Productivity, Automation, Open Source, DevOps
- Source domain
- superqode.dev
- Core workflow
- Discover, build, run, evaluate, and optimize coding-agent harnesses from one terminal
- Protocols
- A2A, ACP, MCP, UHP
- Deployment options
- Open source, hosted endpoint, self-hosted/private cloud
SuperQode Traffic Analysis
Traffic data is for reference only.
- Domain Rating
- 2
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