Haven't looked at rtk closely but from the description it sounds like it works at the CLI output level, trimming stdout before it reaches the model. Context-mode goes a bit further since it also indexes the full output into a searchable FTS5 database, so the model can query specific parts later instead of just losing them. It's less about trimming and more about replacing a raw dump with a summary plus on-demand retrieval.
giancarlostoro|1 day ago
https://github.com/Giancarlos/guardrails
esperent|1 day ago
re5i5tor|1 day ago
re5i5tor|1 day ago
Still high-value, outside MCPs.