MarketNow Registry / Developer Tools / open-harness

open-harness

A code-first, composable SDK to build powerful AI agents

Developer Tools v1.0.0 by MaxGfeller

Trust score

79/100

Install risk

Runs registry code

Source

github

Indexed

2026-09-10

Install

$ npx -y open-harness

Installing via npx/uvx/npm install executes arbitrary code from the public registry on your machine. This is the install-risk semantic of the MarketNow catalog — verify the publisher before running it.

How MarketNow scored this

Sentinel Index Heuristics — a security-first estimate from public signals:

Package age and release activity (stale repositories lose points)
Verified adoption: registry downloads or GitHub stars, not follower counts
Typosquat distance against the 150 most-installed MCP packages
Injection markers scanned in the package description

Heuristic, not a guarantee. For verified agent credentials and revocation, see the MarketNow Trust API.

What is open-harness?

A code-first, composable SDK to build powerful AI agents Indexed by MarketNow with trust 79/100 (Runs registry code).

How do I install it?

Run $ npx -y open-harness Installing via npx/uvx/npm install executes arbitrary code from the public registry on your machine. This is the install-risk semantic of the MarketNow catalog — verify the publisher before running it.

What does the trust score mean?

Security-first heuristic over public signals (age, adoption, typosquat distance, injection markers). It is not a popularity ranking and not a guarantee of safety. open-harness scores 79/100.