diff --git a/api.md b/api.md
index 26a8b86..1771264 100644
--- a/api.md
+++ b/api.md
@@ -257,6 +257,16 @@ Removes a retention policy, which may allow the log to be truncated.
 
 -----
 
+## `GET /ok`
+
+Simple health check endpoint.
+
+### Response
+
+Returns `200 OK` with minimal content for basic health monitoring.
+
+-----
+
 ## `GET /metrics`
 
 Retrieves server metrics for monitoring.
diff --git a/config.md b/config.md
index 5ed5946..d74d41c 100644
--- a/config.md
+++ b/config.md
@@ -18,9 +18,7 @@ Controls server networking, threading, and request handling behavior.
 
 | Parameter | Type | Default | Description |
 |-----------|------|---------|-------------|
-| `bind_address` | string | `"127.0.0.1"` | IP address to bind the server to |
-| `port` | integer | `8080` | Port number to listen on |
-| `unix_socket_path` | string | `""` (empty) | Unix domain socket path. If specified, takes precedence over TCP |
+| `interfaces` | array of objects | TCP on 127.0.0.1:8080 | Network interfaces to listen on. Each interface can be TCP or Unix socket |
 | `max_request_size_bytes` | integer | `1048576` (1MB) | Maximum size for incoming requests. Requests exceeding this limit receive a `413 Content Too Large` response |
 | `io_threads` | integer | `1` | Number of I/O threads for handling connections and network events |
 | `epoll_instances` | integer | `io_threads` | Number of epoll instances to reduce kernel contention (max: io_threads). Lower values allow multiple threads per epoll for better load balancing, higher values reduce contention |
@@ -47,16 +45,25 @@ Controls behavior of the `/v1/subscribe` endpoint and SSE streaming.
 | `max_buffer_size_bytes` | integer | `10485760` (10MB) | Maximum amount of unconsumed data to buffer for slow subscribers. Connections are closed if this limit is exceeded |
 | `keepalive_interval_seconds` | integer | `30` | Interval between keepalive comments in the Server-Sent Events stream to prevent idle timeouts on network proxies |
 
+### Benchmark Configuration (`[benchmark]`)
+
+Controls benchmarking and health check behavior.
+
+| Parameter | Type | Default | Description |
+|-----------|------|---------|-------------|
+| `ok_resolve_iterations` | integer | `7000` | CPU-intensive loop iterations for `/ok` requests in resolve stage. 0 = health check only, 7000 = default benchmark load (~650ns, 1M req/s) |
+
 ## Example Configuration
 
 ```toml
 # WeaselDB Configuration File
 
 [server]
-# Network configuration
-bind_address = "0.0.0.0"
-port = 8080
-# unix_socket_path = "weaseldb.sock"  # Alternative to TCP
+# Network interfaces - can specify multiple TCP and/or Unix socket interfaces
+interfaces = [
+  { type = "tcp", address = "0.0.0.0", port = 8080 },
+  # { type = "unix", path = "weaseldb.sock" },  # Alternative Unix socket
+]
 
 # Performance tuning
 max_request_size_bytes = 2097152  # 2MB
@@ -74,6 +81,9 @@ request_id_retention_versions = 50000
 [subscription]
 max_buffer_size_bytes = 52428800  # 50MB
 keepalive_interval_seconds = 15
+
+[benchmark]
+ok_resolve_iterations = 10000  # Higher load for performance testing
 ```
 
 ## Configuration Loading
diff --git a/design.md b/design.md
index e2cb097..cfabf27 100644
--- a/design.md
+++ b/design.md
@@ -50,11 +50,18 @@ ninja test    # or ctest
 **Individual targets:**
 - `./test_arena_allocator` - Arena allocator unit tests
 - `./test_commit_request` - JSON parsing and validation tests
+- `./test_http_handler` - HTTP protocol handling tests
+- `./test_metric` - Metrics system tests
+- `./test_api_url_parser` - API URL parsing tests
+- `./test_server_connection_return` - Connection lifecycle tests
 
 **Benchmarking:**
 - `./bench_arena_allocator` - Memory allocation performance
 - `./bench_commit_request` - JSON parsing performance
 - `./bench_parser_comparison` - Compare vs nlohmann::json and RapidJSON
+- `./bench_metric` - Metrics system performance
+- `./bench_thread_pipeline` - Lock-free pipeline performance
+- `./bench_format_comparison` - String formatting performance
 
 **Debug tools:**
 - `./debug_arena` - Analyze arena allocator behavior
@@ -73,6 +80,9 @@ ninja test    # or ctest
 - **toml11** - TOML configuration parsing
 - **doctest** - Testing framework
 - **nanobench** - Benchmarking library
+- **nlohmann/json** - JSON library (used in benchmarks)
+- **RapidJSON** - High-performance JSON library (used in benchmarks)
+- **llhttp** - Fast HTTP parser
 
 ---
 
@@ -119,7 +129,7 @@ Ultra-fast memory allocator optimized for request/response patterns:
 - **Streaming data processing** with partial message handling
 - **Connection lifecycle hooks** for initialization and cleanup
 
-#### **Thread Pipeline** (`src/ThreadPipeline.h`)
+#### **Thread Pipeline** (`src/thread_pipeline.hpp`)
 
 A high-performance, multi-stage, lock-free pipeline for inter-thread communication.
 
diff --git a/todo.md b/todo.md
index bf3456b..57a0a0f 100644
--- a/todo.md
+++ b/todo.md
@@ -25,6 +25,7 @@
 ### Infrastructure & Tooling
 - [x] Implement thread-safe Prometheus metrics library and serve `GET /metrics` endpoint
 - [ ] Implement gperf-based HTTP routing for efficient request dispatching
+- [ ] Replace nlohmann/json with simdjson DOM API in parser comparison benchmarks
 - [ ] Implement HTTP client for S3 interactions
   - [ ] Design `HttpClient` class following WeaselDB patterns (factory creation, arena allocation, RAII)
   - [ ] Implement connection pool with configurable limits (max connections, idle timeout)