docs architecture

Author: ishaan-jaff

docs/my-website/docs/proxy/architecture.md

@@ -13,7 +13,7 @@ import TabItem from '@theme/TabItem';
 
 1. **User Sends Request**: The process begins when a user sends a request to the LiteLLM Proxy Server (Gateway).
 
-2. [**Virtual Keys**](../virtual_keys): At this stage the `Bearer` token in the request is checked to ensure it is valid and under it's budget
+2. [**Virtual Keys**](../virtual_keys): At this stage the `Bearer` token in the request is checked to ensure it is valid and under it's budget. [Here is the list of checks that run for each request](https://github.com/BerriAI/litellm/blob/ba41a72f92a9abf1d659a87ec880e8e319f87481/litellm/proxy/auth/auth_checks.py#L43)
 
 3. **Rate Limiting**: The [MaxParallelRequestsHandler](https://github.com/BerriAI/litellm/blob/main/litellm/proxy/hooks/parallel_request_limiter.py) checks the **rate limit (rpm/tpm)** for the the following components:
     - Global Server Rate Limit
@@ -34,4 +34,4 @@ import TabItem from '@theme/TabItem';
         - Virtual Key Rate Limit
         - User Rate Limit
         - Team Limit
-    - The `_PROXY_track_cost_callback` updates spend / usage in the LiteLLM database.
+    - The `_PROXY_track_cost_callback` updates spend / usage in the LiteLLM database. [Here is everything tracked in the DB per request](https://github.com/BerriAI/litellm/blob/ba41a72f92a9abf1d659a87ec880e8e319f87481/schema.prisma#L172)