docs: update documentation for v0.4.0 features

- Add dump_package tool documentation to README and API.md
- Document generate_pdb and use_pdb_variable_names parameters
- Update tool count from 14 to 15 in API.md
- Add DumpPackageRequest/Response models to API.md
- Add v0.4.0 and v0.3.0 entries to CHANGELOG
- Renumber API.md tools to accommodate new dump_package tool

CHANGELOG.md

@@ -5,6 +5,29 @@ All notable changes to mcilspy will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Calendar Versioning](https://calver.org/) for major releases.
 
+## [0.4.0] - 2026-02-11
+
+### Added
+- **PDB Generation** (`generate_pdb` flag) - Generate portable PDB files from decompiled assemblies for IDE debugging
+- **PDB Variable Names** (`use_pdb_variable_names` flag) - Use original variable names from existing PDB files for improved readability
+- **`dump_package` tool** - Extract all assemblies from NuGet package folder structures for bulk analysis
+
+### Changed
+- `decompile_assembly` now exposes all ilspycmd CLI options - mcilspy has 100% feature coverage
+- Updated documentation with new tool and parameter descriptions
+- Tool count increased from 14 to 15
+
+## [0.3.0] - 2026-02-10
+
+### Fixed
+- **Type parsing regex** - Fixed `list_types` returning empty results (regex expected "Class:" but ilspycmd outputs "Class ")
+- **UserStringHeap data access** - Fixed Python name mangling issue in `search_strings` causing crash
+- **Decompile stdout mode** - Added `_decompile_to_stdout()` method for simple decompilation without output directory
+
+### Changed
+- Merged comprehensive code review fixes from parallel taskmaster branches (security, architecture, performance, testing)
+- All 165 tests passing
+
 ## [0.2.0] - 2026-02-07
 
 ### Security

README.md

@@ -78,10 +78,10 @@ Learn from decompiled implementations when documentation falls short.
 
 | Tool | What It Does | Requires ilspycmd? |
 |------|--------------|:------------------:|
-| `decompile_assembly` | Full C# source recovery | Yes |
+| `decompile_assembly` | Full C# source recovery (with PDB generation) | Yes |
 | `list_types` | Enumerate classes, interfaces, enums | Yes |
 | `search_types` | Find types by name pattern | Yes |
-| `search_strings` | Find hardcoded strings (URLs, keys) | Yes |
+| `search_strings` | Find hardcoded strings (URLs, keys) | No |
 | `search_methods` | Find methods by name | No |
 | `search_fields` | Find fields and constants | No |
 | `search_properties` | Find properties by name | No |
@@ -89,11 +89,12 @@ Learn from decompiled implementations when documentation falls short.
 | `list_resources` | Find embedded files/images | No |
 | `get_metadata_summary` | Assembly stats and references | No |
 | `generate_diagrammer` | Interactive HTML type diagrams | Yes |
+| `dump_package` | Extract assemblies from NuGet packages | Yes |
 | `get_assembly_info` | Version, framework, signing info | Yes |
 | `check_ilspy_installation` | Diagnose setup issues | No |
 | `install_ilspy` | Auto-install .NET SDK + ilspycmd | No |
 
-**6 tools work immediately** (via [dnfile](https://github.com/malwarefrank/dnfile)) — no .NET SDK required.
+**7 tools work immediately** (via [dnfile](https://github.com/malwarefrank/dnfile)) — no .NET SDK required.
 **8 more tools** unlock with `ilspycmd` for full decompilation power.
 
 ---
@@ -164,11 +165,14 @@ The primary reverse-engineering tool. Decompiles .NET assemblies to readable C#.
 | `create_project` | No | Generate compilable .csproj structure |
 | `language_version` | No | C# version (default: Latest) |
 | `show_il_code` | No | Output IL bytecode instead of C# |
+| `generate_pdb` | No | Generate portable PDB for debugging (requires `output_dir`) |
+| `use_pdb_variable_names` | No | Use original variable names from existing PDB |
 
 ```json
 {
   "assembly_path": "/path/to/MyApp.dll",
-  "type_name": "MyApp.Services.AuthService"
+  "type_name": "MyApp.Services.AuthService",
+  "use_pdb_variable_names": true
 }
 ```
 </details>
@@ -246,6 +250,26 @@ Generates an HTML visualization of type hierarchies and relationships.
 
 </details>
 
+<details>
+<summary><strong>dump_package</strong> — Extract assemblies from NuGet packages</summary>
+
+Extracts all assemblies from a NuGet package folder structure into a flat directory for bulk analysis.
+
+| Parameter | Required | Description |
+|-----------|:--------:|-------------|
+| `assembly_path` | Yes | Path to assembly or NuGet package folder |
+| `output_dir` | Yes | Directory to dump assemblies into |
+
+```json
+{
+  "assembly_path": "/path/to/packages/Newtonsoft.Json",
+  "output_dir": "./extracted-assemblies"
+}
+```
+
+Useful for analyzing package dependencies or bulk decompilation of NuGet packages.
+</details>
+
 <details>
 <summary><strong>get_assembly_info</strong> — Get assembly metadata</summary>
 

docs/API.md

@@ -4,7 +4,7 @@ This document provides detailed API documentation for mcilspy.
 
 ## Overview
 
-mcilspy provides a Model Context Protocol (MCP) interface to the ILSpy .NET decompiler. It exposes **14 tools** and two prompts for interacting with .NET assemblies.
+mcilspy provides a Model Context Protocol (MCP) interface to the ILSpy .NET decompiler. It exposes **15 tools** and two prompts for interacting with .NET assemblies.
 
 ### Tool Categories
 
@@ -44,6 +44,8 @@ Decompiles a .NET assembly to C# source code. This is the primary tool for rever
 | `remove_dead_stores` | boolean | ✗ | false | Remove unused variable assignments |
 | `show_il_sequence_points` | boolean | ✗ | false | Include debugging sequence points in IL output |
 | `nested_directories` | boolean | ✗ | false | Use nested directories for namespaces |
+| `generate_pdb` | boolean | ✗ | false | Generate portable PDB file (requires `output_dir`) |
+| `use_pdb_variable_names` | boolean | ✗ | false | Use original variable names from existing PDB |
 
 **Language Versions:**
 - `CSharp1` through `CSharp12_0`
@@ -206,9 +208,39 @@ Generates an interactive HTML diagram showing assembly type relationships.
 **Response:**
 Returns success status and output directory path. The HTML file can be opened in a web browser to view the interactive diagram.
 
-### 6. get_assembly_info
+### 6. dump_package
 
-Gets metadata and version information about a .NET assembly.
+Dump package assemblies into a folder. Extracts all assemblies from a NuGet package folder structure into a flat directory for easier analysis.
+
+**Parameters:**
+
+| Parameter | Type | Required | Default | Description |
+|-----------|------|----------|---------|-------------|
+| `assembly_path` | string | ✓ | - | Path to the assembly or NuGet package folder to extract from |
+| `output_dir` | string | ✓ | - | Directory to dump assemblies into (will be created if needed) |
+
+**Use Cases:**
+- Bulk decompilation of NuGet packages
+- Analyzing package dependencies
+- Extracting DLLs from complex package structures
+
+**Example:**
+```json
+{
+  "name": "dump_package",
+  "arguments": {
+    "assembly_path": "/path/to/packages/Newtonsoft.Json.13.0.1",
+    "output_dir": "./extracted-assemblies"
+  }
+}
+```
+
+**Response:**
+Returns a summary including output directory path and list of extracted assemblies.
+
+### 7. get_assembly_info
+
+Gets metadata and version information about a .NET assembly. Uses ilspycmd to extract detailed assembly attributes.
 
 **Parameters:**
 
@@ -241,7 +273,7 @@ Returns assembly metadata including:
 
 These tools use [dnfile](https://github.com/malwarefrank/dnfile) for direct PE/metadata parsing. They do **not require ilspycmd** to be installed.
 
-### 7. search_methods
+### 8. search_methods
 
 Search for methods in an assembly by name pattern. Uses direct metadata parsing of the MethodDef table.
 
@@ -278,7 +310,7 @@ Search for methods in an assembly by name pattern. Uses direct metadata parsing
 **Response:**
 Returns matching methods grouped by declaring type, showing visibility modifiers (public, static, virtual, abstract).
 
-### 8. search_fields
+### 9. search_fields
 
 Search for fields and constants in an assembly. Uses direct metadata parsing of the Field table.
 
@@ -312,7 +344,7 @@ Search for fields and constants in an assembly. Uses direct metadata parsing of
 }
 ```
 
-### 9. search_properties
+### 10. search_properties
 
 Search for properties in an assembly by name pattern. Uses direct metadata parsing of the Property table.
 
@@ -332,7 +364,7 @@ Search for properties in an assembly by name pattern. Uses direct metadata parsi
 - Locate data model fields
 - Discover API response/request properties
 
-### 10. list_events
+### 11. list_events
 
 List all events defined in an assembly. Uses direct metadata parsing of the Event table.
 
@@ -349,7 +381,7 @@ List all events defined in an assembly. Uses direct metadata parsing of the Even
 - Discover observer patterns
 - Analyze UI event handlers
 
-### 11. list_resources
+### 12. list_resources
 
 List all embedded resources in an assembly. Uses direct metadata parsing of the ManifestResource table.
 
@@ -364,7 +396,7 @@ List all embedded resources in an assembly. Uses direct metadata parsing of the
 - Discover localization resources
 - Locate embedded assemblies
 
-### 12. get_metadata_summary
+### 13. get_metadata_summary
 
 Get a comprehensive metadata summary with accurate statistics. Uses dnfile for direct metadata counts.
 
@@ -395,7 +427,7 @@ Returns comprehensive assembly information including:
 
 These tools help manage ilspycmd installation and diagnose issues.
 
-### 13. check_ilspy_installation
+### 14. check_ilspy_installation
 
 Check if ilspycmd and dotnet CLI are installed and working. Use this to diagnose issues with decompilation tools.
 
@@ -415,7 +447,7 @@ Returns installation status including:
 }
 ```
 
-### 14. install_ilspy
+### 15. install_ilspy
 
 Install or update ilspycmd, the ILSpy command-line decompiler. Automatically detects your platform and package manager to provide optimal installation instructions.
 
@@ -549,6 +581,24 @@ class DecompileRequest(BaseModel):
     remove_dead_stores: bool = False
     show_il_sequence_points: bool = False
     nested_directories: bool = False
+    generate_pdb: bool = False  # Generate portable PDB file
+    use_pdb_variable_names: bool = False  # Use variable names from existing PDB
+```
+
+### DumpPackageRequest
+```python
+class DumpPackageRequest(BaseModel):
+    assembly_path: str  # Path to assembly or NuGet package folder
+    output_dir: str  # Required: directory to dump assemblies into
+```
+
+### DumpPackageResponse
+```python
+class DumpPackageResponse(BaseModel):
+    success: bool
+    output_path: str | None = None
+    assemblies_dumped: list[str] = []
+    error_message: str | None = None
 ```
 
 ### TypeInfo

uv.lock

@@ -332,7 +332,7 @@ wheels = [
 
 [[package]]
 name = "mcilspy"
-version = "0.3.0"
+version = "0.4.0"
 source = { editable = "." }
 dependencies = [
     { name = "dnfile" },