v5.9.0

Added

• zig-lsp plugin - Zig language server (ZLS) integration for Claude Code's LSP tool. Maps .zig and .zon to language zig; enables enable_build_on_save so post-edit diagnostics surface real type errors (not just parser errors); 30 s startup timeout, restart-on-crash with cap. Plugin is config-only - no slash commands, no agents, no skills - the harness's built-in LSP tool dispatches automatically once zls is on PATH. Marketplace entry under category development. Source: https://github.com/agent-sh/zig-lsp
• Marketplace plugin count 19 -> 20 in .claude-plugin/marketplace.json description, scripts/plugins.txt, and site/content.json stats.