feat: add Steam Workshop integration

CHANGELOG.md

@@ -8,6 +8,23 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Added
+- **Steam Workshop Integration** (`steam_workshop.py`)
+  - `search_workshop_items` - Search Workshop mods by game
+    - Text search and tag filtering support
+    - Sort by popular, trending, recent, or rating
+    - Returns subscriber counts, ratings, file sizes
+  - `search_workshop_collections` - Search Workshop collections by game
+    - Discover popular modpacks and curated item lists
+    - Sort by popular, trending, recent, or rating
+    - Text search support
+    - Returns collection name, item count, subscriber count
+  - `get_workshop_item_details` - Get detailed Workshop item information
+    - Full description, author info, dependencies
+    - Subscriber/favorite counts, vote breakdown
+    - Creation and update timestamps
+  - `get_workshop_collection` - Get items from a Workshop collection
+    - Collection metadata and item list
+    - Batch fetches item details
 - **Family Sharing Integration** (`family_groups.py`)
   - `get_family_group` - Get family group membership information
     - Returns family members, roles (Adult/Child/Member), and cooldown status
@@ -18,7 +35,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
     - Optional `include_own` parameter to include owned apps
 
 ### Changed
-- Tool count increased from 30 to 32
+- Tool count increased from 30 to 36
 
 ## [v0.8.0] - 2025-12-11
 

README.md

@@ -18,7 +18,7 @@ Once set up, you can ask Claude things like:
 - "Show my pending trade offers"
 - "What's the current price for an AK-47 Redline?"
 
-The server includes 32 tools covering player profiles, game libraries, achievements, stats, reviews, wishlists, news, community guides, trading/market data, and family sharing.
+The server includes 36 tools covering player profiles, game libraries, achievements, stats, reviews, wishlists, news, community guides, trading/market data, family sharing, and Steam Workshop.
 
 ---
 
@@ -179,7 +179,7 @@ No registration needed - just drop in the file and restart.
 
 ---
 
-## Available Tools (32 total)
+## Available Tools (36 total)
 
 ### Player Profiles (ISteamUser) - 6 tools
 
@@ -260,6 +260,15 @@ No registration needed - just drop in the file and restart.
 | `get_family_group` | Get family group membership, members, and roles |
 | `get_shared_library_apps` | Get games available through family sharing |
 
+### Steam Workshop (IPublishedFileService) - 4 tools
+
+| Tool | What it does |
+|------|--------------|
+| `search_workshop_items` | Search Workshop mods by game, with text/tag filters and sorting |
+| `search_workshop_collections` | Search Workshop collections (curated item lists) by game with sorting |
+| `get_workshop_item_details` | Get full details on a Workshop item (description, subscribers, dependencies) |
+| `get_workshop_collection` | Get items from a Workshop collection |
+
 ---
 
 ## Configuration Reference