DB MCP Demo

Laravel ilovasining ma'lumotlar bazasini AI agentlarga faqat o'qish uchun ochib beruvchi custom MCP (Model Context Protocol) server.

Agent SELECT yozmaydi. U ruxsat berilgan jadvallar ro'yxatini so'raydi, ustunlar tuzilishini ko'radi va struktur filtrlar orqali qator o'qiydi. Raw SQL umuman qabul qilinmaydi.

• Laravel 13 · PHP 8.4 · laravel/mcp 0.9

• Ikki rejim: stdio (lokal) va HTTP (domain orqali, Sanctum token bilan)

Mundarija

1. Tez boshlash

2. Arxitektura

3. Sozlash

4. Tool'lar

5. Lokal rejim (stdio)

6. Web rejim (domain orqali)

7. ngrok bilan test

8. Xavfsizlik modeli

9. Testlar

10. Kengaytirish

11. Tuzoqlar

Related MCP server: DB MCP Gateway

Tez boshlash

composer install
cp .env.example .env
php artisan key:generate
touch database/database.sqlite
php artisan migrate

Lokal MCP klient uchun (Claude Code, Cursor va h.k.) loyiha ildizida .mcp.json:

{
  "mcpServers": {
    "database": {
      "command": "php",
      "args": ["artisan", "mcp:start", "database"],
      "cwd": "/absolute/path/to/db-mcp-demo"
    }
  }
}

Tekshirish:

php artisan mcp:inspector database

Arxitektura

MCP klient (Claude Code / Cursor / ChatGPT connector)
        │
        │  JSON-RPC 2.0
        │
        ├── stdio ──────► php artisan mcp:start database
        │
        └── HTTPS POST ─► /mcp/database
                          auth:sanctum → ability:mcp:use → throttle:mcp
        │
        ▼
   DatabaseServer  ── #[Instructions] agentga qanday ishlashni aytadi
        │
        ├── list-tables    ─┐
        ├── table-schema   ─┼──► DatabaseCatalog ──► config/mcp-database.php
        └── query-table    ─┘         │                (allowlist, hidden, limit)
                                      ▼
                              Query Builder (bind qilingan)
                                      ▼
                                  Database

Kalit qoida: hech bir tool bazaga to'g'ridan-to'g'ri murojaat qilmaydi. Hammasi DatabaseCatalog orqali o'tadi, u esa config'dagi cheklovlarni majburlaydi.

Fayllar

Sozlash

Hamma narsa config/mcp-database.php da.

return [
    'connection' => env('MCP_DATABASE_CONNECTION'),

    'tables' => [
        'users',
    ],

    'hidden' => [
        '*' => ['password', 'remember_token'],
    ],

    'default_limit' => 25,
    'max_limit' => 200,
];

Misol — bir nechta jadval va jadvalga xos yashirin ustun:

'tables' => ['users', 'orders', 'products'],

'hidden' => [
    '*' => ['password', 'remember_token'],
    'users' => ['email'],
    'orders' => ['card_last_four'],
],

Tool'lar

list-tables

Parametrsiz. Ruxsat berilgan jadvallar, ularning qator soni va ko'rinadigan ustunlari.

{"jsonrpc":"2.0","id":1,"method":"tools/call",
 "params":{"name":"list-tables","arguments":{}}}

{
  "connection": "sqlite",
  "tables": [
    {
      "table": "users",
      "rows": 5,
      "columns": ["id", "name", "email", "email_verified_at", "created_at", "updated_at"]
    }
  ]
}

password ro'yxatda yo'q — hidden uni olib tashlagan.

table-schema

{"name":"table-schema","arguments":{"table":"users"}}

Har bir ustun uchun name, type, nullable qaytadi, hamda yashirilgan ustunlar ro'yxati (hidden_columns) — agent nima ko'rmayotganini bilishi uchun.

query-table

Har bir filter: {"column": "...", "operator": "...", "value": ...}

Ruxsat berilgan operatorlar:

=  !=  <  <=  >  >=  like  not like  in  not in  null  not null

• null va not null — value kerak emas

• in va not in — value bo'sh bo'lmagan massiv bo'lishi kerak

Misol:

{
  "name": "query-table",
  "arguments": {
    "table": "users",
    "columns": ["id", "name", "email"],
    "filters": [
      {"column": "email", "operator": "like", "value": "%example.test"}
    ],
    "order_by": "id",
    "order_direction": "desc",
    "limit": 10
  }
}

Javob:

{
  "table": "users",
  "columns": ["id", "name", "email"],
  "limit": 10,
  "returned": 1,
  "total_matching": 1,
  "rows": [
    {"id": 1, "name": "Demo User", "email": "demo@example.test"}
  ]
}

total_matching — filtrga mos barcha qatorlar soni, returned — limitdan keyin qaytganlari. Agent shu ikkisini taqqoslab, natija qirqilganini tushunadi.

Lokal rejim (stdio)

routes/ai.php:

Mcp::local('database', DatabaseServer::class);

Klient jarayonni o'zi ishga tushiradi va stdin/stdout orqali gaplashadi. Auth yo'q — klient allaqachon sizning mashinangizda, sizning huquqlaringiz bilan ishlaydi.

Debug:

php artisan mcp:inspector database

php artisan mcp:start database ni terminalda qo'lda ishga tushirmang — u stdin kutib osilib qoladi. Faqat klient yoki inspector uni chaqirsin.

Web rejim (domain orqali)

routes/ai.php:

Mcp::web('/mcp/database', DatabaseServer::class)
    ->middleware(['auth:sanctum', 'ability:mcp:use', 'throttle:mcp']);

Uch qatlam:

Token yaratish

php artisan mcp:token demo@example.test --name=laptop --expires=90

 INFO  Token created. It is shown only once, so copy it now.

1|JVCUiTgZhjV7PvuP42EFsUvNcqVQSorgpHRdEHBj276b3f16

  User ....... demo@example.test
  Abilities .. mcp:use
  Expires .... 2026-12-06 04:39:32

Token faqat mcp:use ability oladi. Ilovaning boshqa API tokenlari bu endpoint'ga o'tolmaydi, va MCP tokeni o'g'irlansa boshqa API'ga kirolmaydi.

Bekor qilish:

php artisan tinker --execute 'App\Models\User::where("email","demo@example.test")->first()->tokens()->delete();'

Klient konfiguratsiyasi

{
  "mcpServers": {
    "database": {
      "type": "http",
      "url": "https://domain.uz/mcp/database",
      "headers": { "Authorization": "Bearer 1|xxxxxxxx" }
    }
  }
}

Deploy tekshiruvi

• HTTPS majburiy. Bearer token shifrlanmagan HTTP'da ochiq ketadi.

• .env da TRUSTED_PROXIES ga real proxy IP'larini yozing. Bo'sh qoldirsangiz $request->ip() proxy IP'sini qaytaradi va rate limit barcha klientlar uchun umumiy bo'lib qoladi. * qiymati faqat lokal tunnel uchun.

• Nginx'da streaming (SSE) javoblar uchun:

  location /mcp/ {
      proxy_buffering off;
      fastcgi_read_timeout 300;
  }

• config/mcp-database.php dagi tables ni prod bazasi uchun qayta ko'rib chiqing.

• php artisan config:cache va route:cache ishlaydi — routes/ai.php avtomatik ro'yxatdan o'tadi, uni bootstrap/app.php ga qo'shish shart emas.

ngrok bilan test

Prod'ga chiqarishdan oldin HTTP qatlamini lokal tekshirish.

# 1-terminal
php artisan serve

# 2-terminal
ngrok config add-authtoken SIZNING_TOKENINGIZ
ngrok http 8000

.env da lokal test uchun:

TRUSTED_PROXIES=*

Foydalanuvchi va token tayyorlang:

php artisan tinker --execute 'App\Models\User::factory()->create(["email" => "demo@example.test"]);'
php artisan mcp:token demo@example.test --expires=1

Tekshirish:

URL='https://xxxx.ngrok-free.dev'
TOKEN='1|xxxxxxxx'

# tokensiz → 401 kutiladi
curl -s -o /dev/null -w '%{http_code}\n' -X POST "$URL/mcp/database" \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

# token bilan
curl -s -X POST "$URL/mcp/database" \
  -H "Authorization: Bearer $TOKEN" \
  -H 'Accept: application/json, text/event-stream' \
  -H 'Content-Type: application/json' \
  -H 'ngrok-skip-browser-warning: true' \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"list-tables","arguments":{}}}'

ngrok-skip-browser-warning — ngrok Free rejasining oraliq ogohlantirish sahifasini chetlab o'tish uchun. Haqiqiy domainda kerak emas.

Test tugagach tunnelni yoping va tokenni bekor qiling.

Xavfsizlik modeli

Uchta mustaqil qatlam. Biri buzilsa ham qolgani ushlab qoladi.

1. Raw SQL yo'q

query-table faqat struktur filtr qabul qiladi. operator — yopiq enum. Qiymatlar Query Builder orqali bind qilinadi.

"operator": "; drop table users --"
→ Supported operators are: =, !=, <, <=, >, >=, like, not like, in, not in, null, not null.

Xato JSON Schema va validation bosqichida qaytadi — so'rov bazaga umuman yetib bormaydi.

2. Jadval oq ro'yxati

config/mcp-database.php dagi tables da yo'q jadval mavjud emasdek muomala qilinadi.

"table": "sessions"
→ Unknown table [sessions]. Available tables: users.

sessions, jobs, password_reset_tokens, personal_access_tokens — hech qachon ko'rinmaydi.

3. Yashirin ustunlar

hidden dagi ustunlar list-tables, table-schema va query-table javoblaridan chiqarib tashlanadi. Agent ularni nomi bilan so'rasa ham:

"columns": ["email", "password"]
→ Unknown or hidden column [password] on table [users].
   Available columns: id, name, email, email_verified_at, created_at, updated_at.

Qo'shimcha

• Barcha tool'lar #[IsReadOnly] va #[IsIdempotent] bilan belgilangan — klient bularni foydalanuvchiga ko'rsatadi.

• max_limit bir so'rovda butun jadvalni so'rib olishning oldini oladi.

• Web rejimda token ability bilan cheklangan va rate limit qo'yilgan.

Nima qilinmagan

Hozir token egasi tables dagi barcha jadvalni ko'radi. Foydalanuvchiga qarab cheklash kerak bo'lsa, tool ichida:

if (! $request->user()->can('read-table', $table)) {
    return Response::error('Permission denied.');
}

yoki tool'ni butunlay yashirish uchun shouldRegister():

public function shouldRegister(Request $request): bool
{
    return $request->user()?->isAdmin() ?? false;
}

Testlar

php artisan test

Faqat bittasini ishga tushirish:

php artisan test --compact tests/Feature/DatabaseServerTest.php
php artisan test --filter='rejects a table that is not allowlisted'

Kengaytirish

Yangi jadval ochish

config/mcp-database.php da bitta qator:

'tables' => ['users', 'orders'],

Kod o'zgarmaydi. Nozik ustunlar bo'lsa hidden ga qo'shing.

Yangi tool qo'shish

php artisan make:mcp-tool OrderSummaryTool

Keyin DatabaseServer::$tools ga qo'shing. Bazaga tegadigan tool DatabaseCatalog ni constructor orqali oling — allowlist va yashirin ustunlar avtomatik amal qiladi:

public function __construct(protected DatabaseCatalog $catalog) {}

public function handle(Request $request): Response|ResponseFactory
{
    $rows = $this->catalog->query('orders')->where('status', 'paid')->get();
    // ...
}

DatabaseCatalog::query() ichida assertTable() chaqiriladi, ya'ni oq ro'yxatdan tashqaridagi jadval istisno tashlaydi.

Tuzoqlar

Bu loyihada allaqachon duch kelingan, .ai/rules/ ga ham yozib qo'yilgan.

1. Tool nomi -tool bilan tugab qoladi

#[Name] atributisiz nom Str::kebab(class_basename($this)) dan olinadi, ya'ni QueryTableTool → query-table-tool. Har doim aniq yozing:

#[Name('query-table')]
#[Title('Query Table')]
class QueryTableTool extends Tool

2. Response::structured() Response emas

U ResponseFactory qaytaradi. handle(): Response deb yozsangiz TypeError chiqadi va klientga tool xatosi bo'lib ko'rinadi:

Return value must be of type Laravel\Mcp\Response, Laravel\Mcp\ResponseFactory returned

To'g'ri turi:

public function handle(Request $request): Response|ResponseFactory

3. ability middleware alias avtomatik kelmaydi

Laravel 13'da Sanctum uni ro'yxatdan o'tkazmaydi. bootstrap/app.php da qo'lda:

$middleware->alias([
    'abilities' => CheckAbilities::class,
    'ability' => CheckForAnyAbility::class,
]);

4. throttle:mcp limiter'siz ishlamaydi

AppServiceProvider::boot() da e'lon qilinishi shart, aks holda so'rov paytida istisno tashlanadi.

5. mcp:start ni qo'lda ishga tushirmang

Stdin kutib osilib qoladi. Debug uchun mcp:inspector ishlating.