--- author: "Umesh Malik" canonical: "https://umesh-malik.com/blog/tag/agent-architecture" description: "Explore articles tagged with Agent Architecture by Umesh Malik — AI Engineer, LLM & GenAI Developer. Learn Agent Architecture best practices, practical tips, and in-depth guides." title: "Umesh Malik's Blog - Agent Architecture Articles | Agent Architecture Tutorials" tokens: 436 generator: "scripts/generate-page-markdown.mjs" --- [← Back to Blog](https://umesh-malik.com/blog) # Agent Architecture 3 articles [![OAuth consent screen with optional scope checkboxes that let users narrow agent permissions](https://umesh-malik.com/blog/optional-oauth-scopes-mcp-servers-cover.png) Web Engineering • Aug 23, 2026 ### Configure Optional OAuth Scopes for MCP Servers and Agents Configure optional OAuth scopes so users can narrow agent permissions at consent. The API call, the UX, and handling partial grants. 6 min read Read more →](https://umesh-malik.com/blog/optional-oauth-scopes-mcp-servers) [![How server-side compaction replaces a long agent transcript with a single summary block once input tokens cross the trigger, and what is kept versus permanently dropped](https://umesh-malik.com/blog/agent-context-compaction-what-survives-cover.png) AI Engineering • Aug 12, 2026 ### Agent context compaction: keep what the 150K cutoff drops Agent context compaction drops every block before the summary at 150K tokens. What survives, what instructions silently replaces, and the usage field that lies. 9 min read Read more →](https://umesh-malik.com/blog/agent-context-compaction-what-survives) [![Diagram contrasting a sequential agent loop of ten model round trips with a two-level dependency graph running nine tool calls concurrently](https://umesh-malik.com/blog/parallel-agent-tool-calls-dag-harness-cover.png) AI Engineering • Aug 6, 2026 ### Run agent tool calls in parallel: 10 turns become 2 DAG levels Run agent tool calls in parallel by swapping the loop for a DAG planner: ten round trips become two levels, plus the cap, budget and critic on top. 10 min read Read more →](https://umesh-malik.com/blog/parallel-agent-tool-calls-dag-harness)