Hamza Sajid — Engineering Journal https://hamzasajid.netlify.app/blogs Notes on agent architecture, software systems, and engineering decisions by Hamza Sajid. en-us Sun, 13 Sep 2026 10:46:43 GMT <![CDATA[AI Agents Need Test Worlds, Not Test Cases: The 2026 Blueprint for Executable Agent Simulation Layers]]> https://hamzasajid.netlify.app/blogs/ai-agents-need-test-worlds-not-test-cases https://hamzasajid.netlify.app/blogs/ai-agents-need-test-worlds-not-test-cases Sun, 13 Sep 2026 00:00:00 GMT <![CDATA[The Architect's Origin: Foundations, Learning, and the Path to Mastery]]> https://hamzasajid.netlify.app/blogs/my-journey-from-tutorials-to-real-portfolio-projects https://hamzasajid.netlify.app/blogs/my-journey-from-tutorials-to-real-portfolio-projects Sun, 22 Feb 2026 00:00:00 GMT <![CDATA[FDE Is Building Future-Driven Workforces.]]> https://hamzasajid.netlify.app/blogs/fde-is-building-future-driven-workforces https://hamzasajid.netlify.app/blogs/fde-is-building-future-driven-workforces Thu, 03 Sep 2026 00:00:00 GMT <![CDATA[Standardized Interoperability Is Connecting Every Digital FTE.]]> https://hamzasajid.netlify.app/blogs/standardized-interoperability-is-connecting-every-digital-fte https://hamzasajid.netlify.app/blogs/standardized-interoperability-is-connecting-every-digital-fte Sun, 13 Sep 2026 00:00:00 GMT <![CDATA[Enterprise Agents Are Building The Workforce.]]> https://hamzasajid.netlify.app/blogs/enterprise-agents-are-building-the-workforce https://hamzasajid.netlify.app/blogs/enterprise-agents-are-building-the-workforce Thu, 03 Sep 2026 00:00:00 GMT <![CDATA[The Vertical AI Employee: Building the Future of Domain-Specific Autonomous Agents]]> https://hamzasajid.netlify.app/blogs/the-vertical-ai-employee-domain-specific-autonomous-agents https://hamzasajid.netlify.app/blogs/the-vertical-ai-employee-domain-specific-autonomous-agents Mon, 23 Feb 2026 00:00:00 GMT <![CDATA[Agents Building Agents: The Recursive Power of Claude Code]]> https://hamzasajid.netlify.app/blogs/agents-building-agents-recursive-power-claude-code https://hamzasajid.netlify.app/blogs/agents-building-agents-recursive-power-claude-code Sun, 22 Feb 2026 00:00:00 GMT <![CDATA[Designing Systems Around Models, Not Demos: The AI Agent Factory Blueprint for Production AI Workers]]> https://hamzasajid.netlify.app/blogs/designing-systems-around-models-not-demos https://hamzasajid.netlify.app/blogs/designing-systems-around-models-not-demos Sat, 28 Feb 2026 00:00:00 GMT <![CDATA[The Agent Harness: Agent Factory's Blueprint for the Runtime that Makes AI Workers Controllable and Useful]]> https://hamzasajid.netlify.app/blogs/the-runtime-that-makes-agents-controllable-and-useful https://hamzasajid.netlify.app/blogs/the-runtime-that-makes-agents-controllable-and-useful Sun, 01 Mar 2026 00:00:00 GMT <![CDATA[Context Engineering: The Agent Factory's System of Context, SKILL.md Pattern, and AI-Searchable Knowledge Architecture]]> https://hamzasajid.netlify.app/blogs/designing-the-information-an-agent-needs-for-the-next-action https://hamzasajid.netlify.app/blogs/designing-the-information-an-agent-needs-for-the-next-action Mon, 02 Mar 2026 00:00:00 GMT <![CDATA[Deterministic AI: The Agent Factory's Spec-Driven Development, State Machines, and require_approval Architecture]]> https://hamzasajid.netlify.app/blogs/where-controlled-autonomy-meets-explicit-state https://hamzasajid.netlify.app/blogs/where-controlled-autonomy-meets-explicit-state Tue, 03 Mar 2026 00:00:00 GMT <![CDATA[AI Reliability Engineering: The Agent Factory's Eval-Driven Development, Maker-Checker Pattern, and 'Leaving the Laptop' Standard]]> https://hamzasajid.netlify.app/blogs/evaluation-observability-recovery-and-human-review https://hamzasajid.netlify.app/blogs/evaluation-observability-recovery-and-human-review Wed, 04 Mar 2026 00:00:00 GMT