KDCube

KDCube Writing

Engineering deep dives, industry perspective, implementation notes, and practical recipes.

89 articles · latest 2026-06-23

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The Pinboard of Proxies

Objects from many apps sit together on one board without merging their databases. Every durable card is a proxy: canvas owns the card; the provider named by the ref owns the object.

pinboardcanvasobject_refnamed servicesportable context
2026-06-23

What the agent always sees: a live map of its workspace

The native KDCube ReAct Agent gets a live map of its disposable, distributed workspace: what is local now and what survives as a durable ref, so it can read, pull, or checkout by intent.

react-agentworkspacedistributed-runtimelive-viewread-pull-checkout
2026-06-22

How the model input is cached — and kept fresh

How the model input is cached and kept fresh: four moving cache points, the never-cached tail, marked cold turns, TTL pruning, and compaction.

prompt cachingcache pointspruningcompactioncold turn
2026-06-22
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