fix(plugins): remove invalid manifest fields causing validation errors

Strip unsupported fields (capabilities, triggers, claude, skills sub-objects)
from clickhouse, clickhouse-monitoring, prompt-engineering, and unsloth-training
plugin.json to conform to the official manifest specification.

Co-Authored-By: duyetbot <duyetbot@users.noreply.github.com>

Author: claude

clickhouse-monitoring/.claude-plugin/plugin.json

@@ -2,30 +2,5 @@
   "name": "clickhouse-monitoring",
   "version": "1.0.1",
   "description": "Agent Skill for the ClickHouse Monitor dashboard - a real-time monitoring and observability tool for ClickHouse clusters. Covers 45 dashboard pages, query performance analysis, table management, and API integration.",
-  "author": { "name": "duyet" },
-  "license": "MIT",
-  "claude": {
-    "minVersion": "1.0.0"
-  },
-  "capabilities": [
-    "skills"
-  ],
-  "triggers": [
-    "clickhouse.*monitor",
-    "monitor.*dashboard",
-    "query.*performance",
-    "merge.*operations",
-    "system.*metrics",
-    "clickhouse.*api",
-    "observability",
-    "running.*queries",
-    "clickhouse.*dashboard"
-  ],
-  "skills": [
-    {
-      "name": "clickhouse-monitoring",
-      "path": "skills/clickhouse-monitoring/SKILL.md",
-      "description": "Specialized knowledge for the ClickHouse Monitor dashboard. Use when working with ClickHouse monitoring dashboards, analyzing query performance, writing ClickHouse system table queries, developing dashboard features, or integrating with the ClickHouse Monitor API."
-    }
-  ]
+  "author": { "name": "duyet" }
 }

clickhouse/.claude-plugin/plugin.json

@@ -2,27 +2,5 @@
   "name": "clickhouse",
   "version": "1.3.1",
   "description": "ClickHouse expertise with 28 atomic review rules + 14 deep reference files. Rules synced with official ClickHouse/agent-skills repository. Schema design, query optimization, insert strategy, cluster management, backups, monitoring, and security best practices.",
-  "author": { "name": "duyetbot" },
-  "license": "MIT",
-  "claude": {
-    "minVersion": "1.0.0"
-  },
-  "capabilities": [
-    "skills"
-  ],
-  "triggers": [
-    "clickhouse",
-    "merge.*tree",
-    "olap",
-    "columnar.*database",
-    "ch\\.",
-    "replicated.*merge"
-  ],
-  "skills": [
-    {
-      "name": "clickhouse-best-practices",
-      "path": "skills/clickhouse/SKILL.md",
-      "description": "MUST USE when reviewing ClickHouse schemas, queries, or configurations. Contains 28 rules that MUST be checked before providing recommendations. Always read relevant rule files and cite specific rules in responses."
-    }
-  ]
+  "author": { "name": "duyetbot" }
 }

prompt-engineering/.claude-plugin/plugin.json

@@ -1,23 +1,6 @@
 {
   "name": "prompt-engineering",
-  "description": "Prompt engineering skills for Grok, Claude, and Gemini LLMs with model-specific guidance and universal techniques",
   "version": "1.0.0",
-  "author": {
-    "name": "duyetbot",
-    "email": "duyetbot@users.noreply.github.com"
-  },
-  "skills": [
-    {
-      "name": "grok-prompting",
-      "description": "Prompt engineering guidance for Grok (xAI) model with conversational prompting patterns and real-time knowledge integration"
-    },
-    {
-      "name": "claude-prompting",
-      "description": "Prompt engineering guidance for Claude (Anthropic) model with XML-style tags, long-context optimization, and extended thinking"
-    },
-    {
-      "name": "gemini-prompting",
-      "description": "Prompt engineering guidance for Gemini (Google) model with system instructions, multimodal prompting, and ultra-long context"
-    }
-  ]
+  "description": "Prompt engineering skills for Grok, Claude, and Gemini LLMs with model-specific guidance and universal techniques",
+  "author": { "name": "duyetbot" }
 }

unsloth-training/.claude-plugin/plugin.json

@@ -5,32 +5,5 @@
   "author": {
     "name": "duyet"
   },
-  "license": "MIT",
-  "claude": {
-    "minVersion": "1.0.0"
-  },
-  "capabilities": [
-    "skills"
-  ],
-  "triggers": [
-    "unsloth",
-    "fine.?tune",
-    "grpo",
-    "sft.*train",
-    "reward.*function",
-    "gguf",
-    "lora.*train",
-    "fp8",
-    "vision.*train",
-    "mlx.*train",
-    "qlora",
-    "mobile.*deploy"
-  ],
-  "skills": [
-    {
-      "name": "unsloth-training",
-      "path": "skills/unsloth-training/SKILL.md",
-      "description": "Fine-tune LLMs with Unsloth using GRPO or SFT. Supports FP8, vision models, mobile deployment, Docker, packing, and synthetic data generation."
-    }
-  ]
+  "license": "MIT"
 }