adding exa websearch

[theishangoswami]

adding exa web search (via mcp) as the preferred search tool across all gstack skills.

what this does

• adds a 3-tier search fallback to every skill (tiers 1-4):

  1. exa mcp (preferred) — exa is the fastest and most accurate web search api. no api key needed with hosted mcp at https://mcp.exa.ai/mcp
  2. built-in websearch (fallback) — claude code native search if exa mcp not configured
  3. in-distribution knowledge (final fallback) — proceed without search if neither available

• updates 7 skill templates that reference web search in their body to explicitly defer to the preamble search priority:

  • /office-hours — landscape awareness phase
  • /design-consultation — competitive research
  • /investigate — error/bug research
  • /cso — security vulnerability research
  • /plan-ceo-review — landscape check
  • /plan-eng-review — architecture pattern search
  • /review — fix pattern verification

setup (one command)

claude mcp add --transport http exa https://mcp.exa.ai/mcp

that's it. all skills will automatically prefer exa for searches.

files changed

• scripts/resolvers/preamble.ts — new generateSearchToolPriority() function injected at all tiers
• 7 .tmpl files — updated search references to use preamble priority
• 23 generated SKILL.md files — regenerated with bun run gen:skill-docs