KCAE.Profiles:3.1 - Put the appropriate work at preparation and query time

A skill can carry a usable entry and the procedure for obtaining deeper sources. A tool service can expose search and edition-aware reading. A package can pin and distribute content and dependencies. A local reader can keep sensitive source material within a permitted environment. These contributions can be combined. Their exact contract must state identity, allowed data flow, completeness, freshness and failure behavior; the form’s name supplies none of those guarantees.

Anthropic’s context-engineering account describes lightweight identifiers and runtime source loading, including combinations of prepared retrieval and exploration. This is a current implementation comparator for the preparation/query split. It highlights why additional exploration has a cost. KCAE uses the mechanism where the runtime supplies it and tests the actual reader result instead of treating dynamic loading as inherently superior.

VibeVM is a concrete package/runtime alternative. Its project README distinguishes resolved package identities, materialized content and computed agent boot material. The boot-lane manual describes a priority text plus an index of static or dynamic contributions, consumer-selected inclusion and conditional loading. It also directs citations back to authored sources rather than generated boot positions. That supplies a practical deferred-reading profile. Qualify the package/version and host behavior used; the documentation is not an observed deployment of this corpus. Dynamic inclusion is neither a guarantee that an unknown useful method will be noticed nor a substitute for complete source reading. It can coexist with semantic search, an exact reader and a separately authorized observer.

The engineering question is therefore not “packages or RAG?” A package can distribute an exact source and entry, a service can search it, an assessor can qualify candidates and a host can load the selected material. Another installation can use direct local files and no service. Compare the operations, source returns and costs of those actual arrangements.