feat: v4.0.0 — major uplevel with spec compliance, gateway consolidation, MCP server

- Replace 1,271 <cc-polymath-root> refs with relative paths across 111 files
- Consolidate 40 gateways to 23 (merge infra, distributed, systems-theory; absorb 8 others)
- Build MCP server for tool-based skill discovery (search, list, info)
- Standardize frontmatter across 160 files (INDEX.md, leaf skills, name prefixes)
- Add context:fork to /skills command to prevent context pollution
- Enhance plugin hooks (compact recovery, SubagentStart for Explore agents)
- Simplify skill template to align with Agent Skills spec
- Remove 4.5MB of JSON reports from tracking
- Update all tests and validation — 22/22 pytest, validate.sh clean

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

Author: rand

.claude-plugin/marketplace.json

@@ -10,7 +10,7 @@
       "name": "cc-polymath",
       "source": "./",
       "description": "Efficient skill management with progressive discovery — 410+ production-ready skills across 33+ domains.",
-      "version": "3.1.0"
+      "version": "4.0.0"
     }
   ]
 }

.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "cc-polymath",
-  "version": "3.1.0",
+  "version": "4.0.0",
   "description": "Efficient skill management system with progressive discovery — 410+ production-ready skills across 33+ domains",
   "author": {
     "name": "rand"
@@ -27,7 +27,7 @@
     "python",
     "zig",
     "cryptography",
-    "protocols",
+    "networking",
     "engineering",
     "mobile",
     "cloud",
@@ -42,7 +42,10 @@
     "prompt-engineering",
     "git-workflows",
     "code-review",
-    "context-efficient"
+    "context-efficient",
+    "distributed-systems",
+    "formal-methods",
+    "containers"
   ],
   "skills": "./skills",
   "commands": "./commands",
@@ -53,7 +56,27 @@
         "hooks": [
           {
             "type": "command",
-            "command": "echo 'cc-polymath v3.1.0 loaded (410+ skills, 40 gateways). Use /skills to discover relevant skills. Root: ${CLAUDE_PLUGIN_ROOT}'"
+            "command": "echo 'cc-polymath v4.0.0 loaded (410+ skills, 23 gateways). Use /skills to discover relevant skills. Root: ${CLAUDE_PLUGIN_ROOT}'"
+          }
+        ]
+      },
+      {
+        "matcher": "compact",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "echo 'cc-polymath: Skills remain available after compaction. Use /skills to rediscover.'"
+          }
+        ]
+      }
+    ],
+    "SubagentStart": [
+      {
+        "matcher": "Explore",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "echo 'cc-polymath skills available in this subagent context.'"
           }
         ]
       }

.gitignore

@@ -123,6 +123,24 @@ skills/MIGRATION_GUIDE.md
 skills/REFACTORING_SUMMARY.md
 skills/_archive/
 
+# Generated reports (store as CI artifacts, not in repo)
+security-report-ci.json
+skills-audit-report.json
+*-report*.json
+
+# Internal planning/audit documents
+AGENT_A*.md
+AGENT_A*.txt
+RESOURCES_*.md
+SECURITY_AUDIT_*.md
+
+# Reasoning logs
+.reasoning_logs/
+
+# MCP server build artifacts
+mcp-server/node_modules/
+mcp-server/dist/
+
 # OS
 Thumbs.db
 Desktop.ini