diff --git a/CHANGELOG.md b/CHANGELOG.md
index 80c80cd..853675a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ### Added
 
+- **marketplace:** Task-specific launcher script for token optimization
+  - New script: `scripts/claude-launch.sh` loads only needed plugins via `--plugin-dir`
+  - Profiles: sprint (default), review, data, infra, full
+  - Reduces token overhead from ~22K to ~4-6K tokens
+  - Enables `ENABLE_TOOL_SEARCH=true` for MCP lazy loading
 - **marketplace:** Lean/full profile switching to reduce token overhead
   - New script: `scripts/switch-profile.sh` to toggle between profiles
   - Lean profile: 6 plugins (projman, git-flow, pr-review, clarity-assist, code-sentinel, doc-guardian)
diff --git a/README.md b/README.md
index b6a55a0..11a4d9a 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,31 @@
 
 A collection of Claude Code plugins for project management, infrastructure automation, and development workflows.
 
+## Quick Start
+
+Use the launcher script to load only the plugins you need, reducing token overhead from ~22K to ~4-6K tokens:
+
+```bash
+./scripts/claude-launch.sh [profile] [extra-args...]
+```
+
+| Profile | Plugins Loaded | Use Case |
+|---------|----------------|----------|
+| `sprint` | projman, git-flow, pr-review, code-sentinel, doc-guardian, clarity-assist | Default. Sprint planning and development |
+| `review` | pr-review, code-sentinel | Lightweight code review |
+| `data` | data-platform, viz-platform | Data engineering and visualization |
+| `infra` | cmdb-assistant | Infrastructure/CMDB management |
+| `full` | All 12 plugins via marketplace.json | When you need everything |
+
+**Examples:**
+```bash
+./scripts/claude-launch.sh                    # Default sprint profile
+./scripts/claude-launch.sh data --model opus  # Data profile with Opus
+./scripts/claude-launch.sh full               # Load all plugins
+```
+
+The script enables `ENABLE_TOOL_SEARCH=true` for MCP lazy loading.
+
 ## Plugins
 
 ### Development & Project Management
diff --git a/docs/prompts/INDEX.md b/docs/prompts/INDEX.md
new file mode 100644
index 0000000..e69de29
diff --git a/scripts/claude-launch.sh b/scripts/claude-launch.sh
new file mode 100755
index 0000000..d295332
--- /dev/null
+++ b/scripts/claude-launch.sh
@@ -0,0 +1,91 @@
+#!/usr/bin/env bash
+#
+# claude-launch.sh - Launch Claude Code with task-specific plugin profiles
+#
+# Usage: ./scripts/claude-launch.sh [profile] [extra-args...]
+#
+# Profiles:
+#   sprint  - Project management, git, PR review, security, docs (default)
+#   infra   - Infrastructure/CMDB management
+#   data    - Data engineering and visualization
+#   review  - Code review only (lightweight)
+#   full    - All plugins via marketplace.json (~22K tokens)
+#
+# Examples:
+#   ./scripts/claude-launch.sh                    # Default sprint profile
+#   ./scripts/claude-launch.sh sprint             # Explicit sprint profile
+#   ./scripts/claude-launch.sh data --model opus  # Data profile with Opus
+#   ./scripts/claude-launch.sh full               # Load all plugins
+#
+
+set -euo pipefail
+
+# Colors for output
+CYAN='\033[0;36m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+# Script directory (for relative plugin paths)
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(dirname "$SCRIPT_DIR")"
+PLUGINS_DIR="$REPO_ROOT/plugins"
+
+# Default profile
+PROFILE="${1:-sprint}"
+
+# Shift profile arg if provided (to pass remaining args to claude)
+if [[ $# -gt 0 ]]; then
+    shift
+fi
+
+# Define plugin lists for each profile
+declare -A PROFILES
+PROFILES[sprint]="projman git-flow pr-review code-sentinel doc-guardian clarity-assist"
+PROFILES[infra]="cmdb-assistant"
+PROFILES[data]="data-platform viz-platform"
+PROFILES[review]="pr-review code-sentinel"
+PROFILES[full]=""  # Empty = use marketplace.json
+
+# Validate profile
+if [[ ! ${PROFILES[$PROFILE]+_} ]]; then
+    echo -e "${YELLOW}Unknown profile: $PROFILE${NC}"
+    echo "Available profiles: sprint, infra, data, review, full"
+    exit 1
+fi
+
+# Build --plugin-dir arguments
+PLUGIN_ARGS=()
+PLUGIN_LIST="${PROFILES[$PROFILE]}"
+
+if [[ -n "$PLUGIN_LIST" ]]; then
+    echo -e "${CYAN}Profile: $PROFILE${NC}"
+    echo -e "${GREEN}Loading plugins:${NC}"
+
+    for plugin in $PLUGIN_LIST; do
+        plugin_path="$PLUGINS_DIR/$plugin"
+        if [[ -d "$plugin_path" ]]; then
+            echo "  • $plugin"
+            PLUGIN_ARGS+=("--plugin-dir" "$plugin_path")
+        else
+            echo -e "${YELLOW}  ⚠ $plugin (not found at $plugin_path)${NC}"
+        fi
+    done
+    echo ""
+else
+    echo -e "${CYAN}Profile: full${NC}"
+    echo -e "${GREEN}Loading all plugins via marketplace.json${NC}"
+    echo ""
+fi
+
+# Enable MCP Tool Search for deferred tool loading
+export ENABLE_TOOL_SEARCH=true
+echo -e "${GREEN}MCP Tool Search: enabled${NC}"
+echo ""
+
+# Launch claude with plugin args and any extra arguments
+if [[ ${#PLUGIN_ARGS[@]} -gt 0 ]]; then
+    exec claude "${PLUGIN_ARGS[@]}" "$@"
+else
+    exec claude "$@"
+fi