diff --git a/conductor/tech-stack.md b/conductor/tech-stack.md
index 2ac8ec9..4fda6f8 100644
--- a/conductor/tech-stack.md
+++ b/conductor/tech-stack.md
@@ -14,4 +14,7 @@
 ## Configuration & Tooling
 - **tomli-w:** For writing TOML configuration files.
 - **psutil:** For system and process monitoring (CPU/Memory telemetry).
-- **uv:** An extremely fast Python package and project manager.
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+- **uv:** An extremely fast Python package and project manager.
+
+## Architectural Patterns
+- **Event-Driven Metrics:** Uses a custom `EventEmitter` to decouple API lifecycle events from UI rendering, improving performance and responsiveness.
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