Developer Tools / AI Agent Infrastructure

Stonefold

Stonefold is a deterministic enforcement gateway for AI agents. It sits between an agent and real systems, validates typed intents, applies policy, supports human approval and kill-switch controls, and records an audit trail for every attempt.

Clear27/30
Useful28/30
Specific17/20
Complete16/20
Stonefold screenshot

Why it was accepted

The page clearly presents a real AI-adjacent product with a defined job: deterministic enforcement for agent actions. It shows concrete capabilities, including typed intents, default-deny policy checks, human approvals, audit logging, kill switch behavior, and support for existing tools via a proxy. The crawl also provides strong evidence of a working prototype, open spec, and test kit, which makes it useful for a public listing.

Weakness

The crawl suggests the project is early-stage, but it does not show pricing, deployment options, supported platforms beyond a few examples, or how a team would integrate it end to end in production.

Review status

73 days ago #303 ↓ -3

Last evaluated 73 days ago. Current rank #303. Down 3 spots in the rankings.

Score history

88

Related listings

CodeGraph screenshot
94

Developer Tools / AI for Code

CodeGraph is a local code knowledge graph for AI coding agents like Claude Code, Cursor, Codex, OpenCode, and Hermes Agent. It aims to cut token use, tool calls, and runtime by letting agents query pre-indexed code structure instead of scanning files repeatedly.

Mercemur screenshot
93

Developer Tools / API / AI Agent Infrastructure

Mercemur is a store automation platform with three interfaces: a REST API, an MCP server for AI agents, and a CLI for editing storefronts as files. The docs show authentication, scopes, rate limits, error handling, pagination, idempotency, and a large API surface for catalogue, orders, customers, pricing, and money.

Lumae screenshot
#4 Lumae
92

Developer Tools / Code Assistant

Lumae is a free native macOS screen recorder and screenshot tool for polished demos, with automatic zooms, cursor smoothing, motion blur, captions, voiceover, and annotated screenshots. It also exposes editing commands over MCP so agents like Claude Code or Claude Desktop can edit projects directly.

ripwire screenshot
#6 ripwire
92

Developer Tools / Code Assistant

A zero-dependency C++23 CLI and MCP server that gives coding agents a ranked map of a repository, including call context, blast radius, and tests to run.