release: v3.37.1 - threat-db v2.8.0, CC releases v2.1.78, 19 skills update, doc fixes

- threat-db v2.8.0: GhostClaw campaign, Fake OpenClaw Installer, CVE-2026-24910 (Bun),
  T017 Shadow MCP, T018 AI Search Poisoning, Jozu Agent Guard, MCP Sentinel
- Claude Code releases tracked to v2.1.78 (StopFailure hook, plugin state, security fixes)
- 19 skill descriptions improved (PR #9 selective merge, @popey/Tessl)
- MCP vs CLI token overhead corrected (lazy loading, 85% reduction benchmark)
- Agent Adoption Curve self-assessment (7-level maturity scale, Martignole framework)
- ctx7 CLI section §5.5 + resource evals #079 #080 #081

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

machine-readable/reference.yaml

@@ -3,7 +3,7 @@
 # Source: guide/ultimate-guide.md
 # Purpose: Condensed index for LLMs to quickly answer user questions about Claude Code
 
-version: "3.37.0"
+version: "3.37.1"
 updated: "2026-03-17"
 
 # ════════════════════════════════════════════════════════════════
@@ -1060,7 +1060,7 @@ deep_dive:
   # Quiz System (271 questions, 15 categories)
   quiz_overview: "quiz/README.md"
   quiz_file: "quiz/questions.json"
-  quiz_count: 311
+  quiz_count: 271
   quiz_categories: 15
   quiz_beginner: "quiz/categories/basics,commands,shortcuts,reference"
   quiz_beginner_count: 60
@@ -1581,7 +1581,7 @@ ecosystem:
       - "Cross-links modified → Update all 4 repos"
     history:
       - date: "2026-01-20"
-        event: "Code Landing sync v3.37.0, 66 templates, cross-links"
+        event: "Code Landing sync v3.37.1, 66 templates, cross-links"
         commit: "5b5ce62"
       - date: "2026-01-20"
         event: "Cowork Landing fix (paths, README, UI badges)"
@@ -1593,7 +1593,7 @@ ecosystem:
 onboarding_matrix_meta:
   version: "2.1.0"
   last_updated: "2026-03-09"
-  aligned_with_guide: "3.37.0"
+  aligned_with_guide: "3.37.1"
   changelog:
     - version: "2.1.0"
       date: "2026-03-09"
@@ -1624,7 +1624,7 @@ onboarding_matrix:
       core: [rules, sandbox_native_guide, commands]
       time_budget: "5 min"
       topics_max: 3
-      note: "SECURITY FIRST - sandbox before commands (v3.37.0 critical fix)"
+      note: "SECURITY FIRST - sandbox before commands (v3.37.1 critical fix)"
 
     beginner_15min:
       core: [rules, sandbox_native_guide, workflow, essential_commands]
@@ -1713,7 +1713,7 @@ onboarding_matrix:
         - default: agent_validation_checklist
       time_budget: "60 min"
       topics_max: 6
-      note: "Dual-instance pattern for quality workflows (v3.37.0)"
+      note: "Dual-instance pattern for quality workflows (v3.37.1)"
 
   learn_security:
     intermediate_30min:
@@ -1724,7 +1724,7 @@ onboarding_matrix:
         - default: permission_modes
       time_budget: "30 min"
       topics_max: 4
-      note: "NEW goal (v3.37.0) - Security-focused learning path"
+      note: "NEW goal (v3.37.1) - Security-focused learning path"
 
     power_60min:
       core: [sandbox_native_guide, mcp_secrets_management, security_hardening]
@@ -1749,7 +1749,7 @@ onboarding_matrix:
       core: [rules, sandbox_native_guide, workflow, essential_commands, context_management, plan_mode]
       time_budget: "60 min"
       topics_max: 6
-      note: "Security foundation + core workflow (v3.37.0 sandbox added)"
+      note: "Security foundation + core workflow (v3.37.1 sandbox added)"
 
     intermediate_120min:
       core: [plan_mode, agents, skills, config_hierarchy, git_mcp_guide, hooks, mcp_servers]