https://alfredo-perez.dev/blog Software engineer who loves building great experiences, sharing what I learn, and making AI work for developers. en-us alfredo.perez.q@gmail.com (Alfredo Perez) alfredo.perez.q@gmail.com (Alfredo Perez) Sun, 07 Jun 2026 00:00:00 GMT https://alfredo-perez.dev/blog/2026-06-07-layered-context-foundation https://alfredo-perez.dev/blog/2026-06-07-layered-context-foundation SDD loads four layers of context automatically: principles, living specs, feature deltas, and ADRs, so your specs stop dying the moment a PR merges. Sun, 07 Jun 2026 00:00:00 GMT alfredo.perez.q@gmail.com (Alfredo Perez) sddspec-driven-developmentai-codingclaude-codebrownfieldbuild-in-public https://alfredo-perez.dev/blog/2026-06-07-specs-that-move-in-next-to-your-code https://alfredo-perez.dev/blog/2026-06-07-specs-that-move-in-next-to-your-code How I made SDD adoptable on a real, existing codebase: specs that live next to your code, and /sdd:init that drafts them from the code you already have. Sun, 07 Jun 2026 00:00:00 GMT alfredo.perez.q@gmail.com (Alfredo Perez) sddspec-driven-developmentai-codingclaude-codebrownfieldbuild-in-public