Declarative prompt engineering. Notes from Skelf Research.https://promptel.skelfresearch.com/en-ushttps://promptel.skelfresearch.com/blog/anatomy-of-a-promptel-file/https://promptel.skelfresearch.com/blog/anatomy-of-a-promptel-file/Walk through a real .prompt file block by block. What each piece means, why it exists, and what the AST looks like when the parser is done with it.Sun, 02 Nov 2025 00:00:00 GMThttps://promptel.skelfresearch.com/blog/provider-portable-prompts/https://promptel.skelfresearch.com/blog/provider-portable-prompts/A provider abstraction is not about hedging your bets. It is about keeping the prompt as the unit of work — and making the SDK the implementation detail it should always have been.Wed, 08 Oct 2025 00:00:00 GMThttps://promptel.skelfresearch.com/blog/why-prompts-deserve-a-dsl/https://promptel.skelfresearch.com/blog/why-prompts-deserve-a-dsl/F-strings work until they don't. Once a prompt has params, defaults, techniques, and provider constraints, it stops being a string and starts being a program. Give it a grammar.Sun, 14 Sep 2025 00:00:00 GMT