feat: add 9 pgcrypto tools for cryptographic operations, update documentation, and introduce core adapter files.

Author: Temp

CHANGELOG.md

@@ -74,13 +74,24 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - `pg_ltree_convert_column` — Convert text to ltree
   - `pg_ltree_create_index` — Create GiST index for tree queries
 - New `ltree` tool-filtering group for hierarchical tree operations
+- **9 pgcrypto tools** — Cryptographic functions support
+  - `pg_pgcrypto_create_extension` — Enable pgcrypto
+  - `pg_pgcrypto_hash` — Hash data with digest() (SHA-256, MD5, etc.)
+  - `pg_pgcrypto_hmac` — HMAC authentication
+  - `pg_pgcrypto_encrypt` — Symmetric encryption with pgp_sym_encrypt()
+  - `pg_pgcrypto_decrypt` — Symmetric decryption with pgp_sym_decrypt()
+  - `pg_pgcrypto_gen_random_uuid` — Generate cryptographically secure UUID v4
+  - `pg_pgcrypto_gen_random_bytes` — Generate random bytes for salts/tokens
+  - `pg_pgcrypto_gen_salt` — Generate salt for password hashing
+  - `pg_pgcrypto_crypt` — Hash passwords with crypt()
+- New `pgcrypto` tool-filtering group for cryptographic operations
 
 ### Changed
 - Restructured resources into modular files for maintainability
 - Resource count from 6 to 14
 - Prompt count from 7 to 13
 - Restructured prompts into modular files for maintainability
-- Tool count from 146 to 185 (added pg_cron, pg_partman, pg_stat_kcache, citext, and ltree tools)
+- Tool count from 146 to 194 (added pg_cron, pg_partman, pg_stat_kcache, citext, ltree, and pgcrypto tools)
 
 ### Planned
 - Verify prompts and resources from old Python server are ported

README.md

@@ -4,17 +4,17 @@
 
 *Last updated December 14, 2025 - Initial Implementation Complete*
 
-*Enterprise-grade PostgreSQL MCP Server with OAuth 2.0 authentication, connection pooling, tool filtering, plus support for citext, ltree, pg_cron, pg_stat_kcache, pgvector, PostGIS, and advanced PostgreSQL features - TypeScript Edition*
+*Enterprise-grade PostgreSQL MCP Server with OAuth 2.0 authentication, connection pooling, tool filtering, plus support for citext, ltree, pgcrypto, pg_cron, pg_stat_kcache, pgvector, PostGIS, and advanced PostgreSQL features - TypeScript Edition*
 
-> **✅ Initial Implementation Complete** - 185 tools, 14 resources, and 13 prompts. Thorough testing before release in progress.
+> **✅ Initial Implementation Complete** - 194 tools, 14 resources, and 13 prompts. Thorough testing before release in progress.
 
 [![GitHub](https://img.shields.io/badge/GitHub-neverinfamous/postgres--mcp-blue?logo=github)](https://github.com/neverinfamous/postgres-mcp)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![TypeScript](https://img.shields.io/badge/TypeScript-5.9-blue.svg)](https://www.typescriptlang.org/)
 [![MCP](https://img.shields.io/badge/MCP-Compatible-green.svg)](https://modelcontextprotocol.io/)
 ![Status](https://img.shields.io/badge/status-Testing-blue)
 
-A **PostgreSQL MCP Server** that enables AI assistants (Claude, Cursor, etc.) to interact with PostgreSQL databases through the Model Context Protocol. Provides **185 specialized tools**, **14 resources**, and **13 AI-powered prompts**.
+A **PostgreSQL MCP Server** that enables AI assistants (Claude, Cursor, etc.) to interact with PostgreSQL databases through the Model Context Protocol. Provides **194 specialized tools**, **14 resources**, and **13 AI-powered prompts**.
 
 ---
 
@@ -102,7 +102,7 @@ node dist/cli.js --transport stdio --postgres postgres://user:password@localhost
 
 ## 🛠️ Tool Categories
 
-This server provides **185 tools** across 18 categories:
+This server provides **194 tools** across 19 categories:
 
 | Category | Tools | Description |
 |----------|-------|-------------|
@@ -124,13 +124,14 @@ This server provides **185 tools** across 18 categories:
 | Kcache | 7 | pg_stat_kcache extension - OS-level CPU/memory/I/O stats per query |
 | Citext | 6 | citext extension - case-insensitive text for emails, usernames |
 | Ltree | 8 | ltree extension - hierarchical tree labels for taxonomies, org charts |
+| Pgcrypto | 9 | pgcrypto extension - hashing, encryption, password hashing, random UUIDs |
 
 ---
 
 ## 🎛️ Tool Filtering
 
 > [!IMPORTANT]
-> **AI-enabled IDEs have tool limits.** With 177 tools, you **MUST** use tool filtering to stay within limits.
+> **AI-enabled IDEs have tool limits.** With 194 tools, you **MUST** use tool filtering to stay within limits.
 
 ### Tool Groups
 
@@ -154,6 +155,7 @@ This server provides **185 tools** across 18 categories:
 | `kcache` | 7 | pg_stat_kcache OS-level stats |
 | `citext` | 6 | citext case-insensitive text |
 | `ltree` | 8 | ltree hierarchical tree labels |
+| `pgcrypto` | 9 | pgcrypto hashing, encryption, UUIDs |
 
 ### Filter Presets
 
@@ -169,7 +171,7 @@ This server provides **185 tools** across 18 categories:
 
 **DBA (~75 tools):**
 ```json
-"--tool-filter", "-vector,-postgis,-cron,-partman,-kcache,-citext,-ltree"
+"--tool-filter", "-vector,-postgis,-cron,-partman,-kcache,-citext,-ltree,-pgcrypto"
 ```
 
 ### Custom Filtering Syntax
@@ -241,6 +243,7 @@ This server provides **14 resources** for structured data access:
 | `pg_stat_kcache` | OS-level CPU/memory/I/O stats | 7 kcache tools |
 | `citext` | Case-insensitive text | 6 citext tools |
 | `ltree` | Hierarchical tree labels | 8 ltree tools |
+| `pgcrypto` | Hashing, encryption, UUIDs | 9 pgcrypto tools |
 
 > Extension tools gracefully handle cases where extensions are not installed.
 

src/adapters/postgresql/PostgresAdapter.ts

@@ -44,6 +44,7 @@ import { getPartmanTools } from './tools/partman.js';
 import { getKcacheTools } from './tools/kcache.js';
 import { getCitextTools } from './tools/citext.js';
 import { getLtreeTools } from './tools/ltree.js';
+import { getPgcryptoTools } from './tools/pgcrypto.js';
 import { getPostgresResources } from './resources/index.js';
 import { getPostgresPrompts } from './prompts/index.js';
 
@@ -545,7 +546,8 @@ export class PostgresAdapter extends DatabaseAdapter {
             'partman',
             'kcache',
             'citext',
-            'ltree'
+            'ltree',
+            'pgcrypto'
         ];
     }
 
@@ -572,7 +574,8 @@ export class PostgresAdapter extends DatabaseAdapter {
             ...getPartmanTools(this),
             ...getKcacheTools(this),
             ...getCitextTools(this),
-            ...getLtreeTools(this)
+            ...getLtreeTools(this),
+            ...getPgcryptoTools(this)
         ];
     }