QwenClaw v2.0 - Complete Rebuild with ALL 81+ Skills

skills/claude-codex-settings/plugins/mongodb-tools/.claude-plugin/plugin.json

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+{
+  "name": "mongodb-tools",
+  "version": "2.0.3",
+  "description": "MongoDB MCP integration (read-only) for database exploration with best practices skill.",
+  "author": {
+    "name": "Fatih Akyon"
+  },
+  "homepage": "https://github.com/fcakyon/claude-codex-settings#plugins",
+  "repository": "https://github.com/fcakyon/claude-codex-settings",
+  "license": "Apache-2.0"
+}

skills/claude-codex-settings/plugins/mongodb-tools/.mcp.json

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+{
+  "mongodb": {
+    "command": "npx",
+    "args": ["-y", "mongodb-mcp-server"],
+    "env": {
+      "MDB_MCP_CONNECTION_STRING": "REPLACE_WITH_CONNECTION_STRING",
+      "MDB_MCP_READ_ONLY": "true"
+    }
+  }
+}

skills/claude-codex-settings/plugins/mongodb-tools/commands/setup.md

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+---
+description: Configure MongoDB MCP connection
+---
+
+# MongoDB Tools Setup
+
+**Source:** [mongodb-js/mongodb-mcp-server](https://github.com/mongodb-js/mongodb-mcp-server)
+
+Configure the MongoDB MCP server with your connection string.
+
+## Step 1: Check Current Status
+
+Read the MCP configuration from `${CLAUDE_PLUGIN_ROOT}/.mcp.json`.
+
+Check if MongoDB is configured:
+
+- If `mongodb.env.MDB_MCP_CONNECTION_STRING` contains `REPLACE_WITH_CONNECTION_STRING`, it needs configuration
+- If it contains a value starting with `mongodb://` or `mongodb+srv://`, already configured
+
+Report status:
+
+- "MongoDB MCP is not configured - needs a connection string"
+- OR "MongoDB MCP is already configured"
+
+## Step 2: Show Setup Guide
+
+Tell the user:
+
+```
+To configure MongoDB MCP, you need a connection string.
+
+Formats:
+- Atlas: mongodb+srv://username:password@cluster.mongodb.net/database
+- Local: mongodb://localhost:27017/database
+
+Get Atlas connection string:
+1. Go to cloud.mongodb.com
+2. Navigate to your cluster
+3. Click "Connect" → "Drivers"
+4. Copy connection string
+
+Note: MCP runs in READ-ONLY mode.
+
+Don't need MongoDB MCP? Disable it via /mcp command.
+```
+
+## Step 3: Ask for Connection String
+
+Use AskUserQuestion:
+
+- question: "Do you have your MongoDB connection string ready?"
+- header: "MongoDB"
+- options:
+  - label: "Yes, I have it"
+    description: "I have my MongoDB connection string ready to paste"
+  - label: "No, skip for now"
+    description: "I'll configure it later"
+
+If user selects "No, skip for now":
+
+- Tell them they can run `/mongodb-tools:setup` again when ready
+- Remind them they can disable MongoDB MCP via `/mcp` if not needed
+- Exit
+
+If user selects "Yes" or provides connection string via "Other":
+
+- If they provided connection string in "Other" response, use that
+- Otherwise, ask them to paste the connection string
+
+## Step 4: Validate Connection String
+
+Validate the provided connection string:
+
+- Must start with `mongodb://` or `mongodb+srv://`
+
+If invalid:
+
+- Show error: "Invalid connection string format. Must start with 'mongodb://' or 'mongodb+srv://'"
+- Ask if they want to try again or skip
+
+## Step 5: Update Configuration
+
+1. Read current `${CLAUDE_PLUGIN_ROOT}/.mcp.json`
+2. Create backup at `${CLAUDE_PLUGIN_ROOT}/.mcp.json.backup`
+3. Update `mongodb.env.MDB_MCP_CONNECTION_STRING` value to the actual connection string
+4. Write updated configuration back to `${CLAUDE_PLUGIN_ROOT}/.mcp.json`
+
+## Step 6: Confirm Success
+
+Tell the user:
+
+```
+MongoDB MCP configured successfully!
+
+IMPORTANT: Restart Claude Code for changes to take effect.
+- Exit Claude Code
+- Run `claude` again
+
+To verify after restart, run /mcp and check that 'mongodb' server is connected.
+```
+
+## Troubleshooting
+
+If MongoDB MCP fails after configuration:
+
+```
+Common fixes:
+1. Authentication failed - Add ?authSource=admin to connection string
+2. Network timeout - Whitelist IP in Atlas Network Access settings
+3. Wrong credentials - Verify username/password, special chars need URL encoding
+4. SSL/TLS errors - For Atlas, ensure mongodb+srv:// is used
+```

skills/claude-codex-settings/plugins/mongodb-tools/skills/mongodb-usage/SKILL.md

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+---
+name: mongodb-usage
+description: This skill should be used when user asks to "query MongoDB", "show database collections", "get collection schema", "list MongoDB databases", "search records in MongoDB", or "check database indexes".
+---
+
+# MongoDB Best Practices
+
+## MCP Limitation
+
+**This MCP operates in READ-ONLY mode.** No write, update, or delete operations are possible.
+
+## Schema Design Patterns
+
+### Embedding vs Referencing
+
+**Embed when:**
+
+- Data is accessed together frequently
+- Child documents are bounded (won't grow unbounded)
+- One-to-few relationships
+- Data doesn't change frequently
+
+**Reference when:**
+
+- Data is accessed independently
+- Many-to-many relationships
+- Documents would exceed 16MB limit
+- Frequent updates to referenced data
+
+### Common Patterns
+
+**Subset pattern:** Store frequently accessed subset in parent, full data in separate collection.
+
+**Bucket pattern:** Group time-series data into buckets (e.g., hourly readings in one document).
+
+**Computed pattern:** Store pre-computed values for expensive calculations.
+
+## Index Strategies
+
+### Index Guidelines
+
+- Index fields used in queries, sorts, and aggregation $match stages
+- Compound indexes support queries on prefix fields
+- Covered queries (all fields in index) are fastest
+- Too many indexes slow writes
+
+### Index Types
+
+- **Single field:** Basic index on one field
+- **Compound:** Multiple fields, order matters for queries
+- **Multikey:** Automatically created for array fields
+- **Text:** Full-text search on string content
+- **TTL:** Auto-expire documents after time period
+
+### ESR Rule
+
+For compound indexes, order fields by:
+
+1. **E**quality (exact match fields)
+2. **S**ort (sort order fields)
+3. **R**ange (range query fields like $gt, $lt)
+
+## Aggregation Pipeline
+
+### Performance Tips
+
+- Put `$match` and `$project` early to reduce documents
+- Use `$limit` early when possible
+- Avoid `$lookup` on large collections without indexes
+- Use `$facet` for multiple aggregations in one query
+
+### Common Stages
+
+```javascript
+// Filter documents
+{ $match: { status: "active" } }
+
+// Reshape documents
+{ $project: { name: 1, total: { $sum: "$items.price" } } }
+
+// Group and aggregate
+{ $group: { _id: "$category", count: { $sum: 1 } } }
+
+// Sort results
+{ $sort: { count: -1 } }
+
+// Join collections
+{ $lookup: { from: "orders", localField: "_id", foreignField: "userId", as: "orders" } }
+```
+
+## Connection Best Practices
+
+### Connection String Formats
+
+- **Atlas:** `mongodb+srv://user:pass@cluster.mongodb.net/database`
+- **Local:** `mongodb://localhost:27017/database`
+- **Replica set:** `mongodb://host1,host2,host3/database?replicaSet=rs0`
+
+### Connection Pooling
+
+- Use connection pooling in applications (default in drivers)
+- Set appropriate pool size for your workload
+- Don't create new connections per request
+
+## Anti-Patterns to Avoid
+
+- **Unbounded arrays:** Arrays that grow without limit
+- **Massive documents:** Documents approaching 16MB
+- **Too many collections:** Use embedding instead
+- **Missing indexes:** Queries doing collection scans
+- **$where operator:** Use aggregation instead for security
+- **Storing files in documents:** Use GridFS for large files

skills/claude-codex-settings/plugins/mongodb-tools/skills/setup/SKILL.md

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+---
+name: setup
+description: This skill should be used when user encounters "MongoDB connection failed", "authentication failed", "MongoDB MCP error", "connection string invalid", "authSource error", or needs help configuring MongoDB integration.
+---
+
+# MongoDB Tools Setup
+
+Run `/mongodb-tools:setup` to configure MongoDB MCP.
+
+## Quick Fixes
+
+- **Authentication failed** - Add `?authSource=admin` to connection string
+- **Invalid connection string** - Use `mongodb://` or `mongodb+srv://` prefix
+- **Network timeout** - Whitelist IP in Atlas Network Access
+
+## Don't Need MongoDB?
+
+Disable via `/mcp` command to prevent errors.