mcp-toggle

#!/bin/sh

# Enable/disable a named MCP server on demand to keep the always-on context lean.
# Server definitions live in ai/mcp/mcp.json (single source of truth); this reads
# the requested one and registers/removes it at user scope.
#
# Usage:  mcp-toggle <name> on|off
# Example: mcp-toggle github on   |   mcp-toggle playwright off

set -e

DOTFILES="${DOTFILES:-$HOME/.dotfiles}"
MCP="$DOTFILES/ai/mcp/mcp.json"

name="$1"
action="$2"
[ -n "$name" ] && [ -n "$action" ] || { echo "usage: mcp-toggle <name> on|off" >&2; exit 1; }
command -v claude >/dev/null 2>&1 || { echo "claude CLI not found" >&2; exit 1; }

case "$action" in
  on)
    # Extract the def, dropping any "// note" documentation keys.
    def="$(jq -c --arg n "$name" '.mcpServers[$n] | with_entries(select(.key | startswith("//") | not))' "$MCP" 2>/dev/null)"
    [ -n "$def" ] && [ "$def" != "null" ] || { echo "no server '$name' defined in $MCP" >&2; exit 1; }
    claude mcp add-json --scope user "$name" "$def" && echo "MCP '$name' on"
    ;;
  off)
    claude mcp remove --scope user "$name" 2>/dev/null \
      || claude mcp remove "$name" 2>/dev/null \
      || true
    echo "MCP '$name' off"
    ;;
  *)
    echo "usage: mcp-toggle <name> on|off" >&2; exit 1 ;;
esac