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Dev.to
6/18/2026
A rival to my open-source tool shipped. I read all of it — then ported its 4 best ideas the same afternoon.

A rival to my open-source tool shipped. I read all of it — then ported its 4 best ideas the same afternoon.

Short summary

The author maintains Safari MCP, an open-source browser-automation tool for AI agents. When a competitor (safari-devtools-mcp) appeared in the Model Context Protocol registry, they read the entire codebase and extracted four iOS web-dev validation tools (viewport meta, safe area insets, PWA readiness, WebKit compatibility) that fit their AppleScript architecture. They ported and shipped these same-day.

  • •Competitor shipped safari-devtools-mcp in the MCP registry, squarely in Safari MCP's lane
  • •Author read rival's codebase and identified four portable iOS web-dev validation tools with practical examples
  • •Ported tools same-day by reimplementing for their AppleScript engine—proof that competition can drive learning and feature velocity

Generated with AI, which can make mistakes.

#open-source#ai-tools#ai-agents
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