internal/

Package attachclient is the shared client for attach-mode endpoints, used by both `core-agent attach`/`ls` (in cmd/core-agent) and `core-agent-tui` (in cmd/core-agent-tui).

Package coretuiremote adapts a remote core-agent (reached over the pkg/attach HTTP+SSE protocol via internal/attachclient) into a go-steer/core-tui Agent.

Package pricing resolves a model's per-million-token rates across a layered set of sources so usage costs stay accurate as new models ship and operators add overrides.

Package testutil provides shared test helpers for Cogo, most notably FakeModel — a deterministic implementation of google.golang.org/adk/model.LLM that lets us drive end-to-end agent tests without burning real tokens.

Package version centralizes build-identity reporting for both cmd/core-agent and cmd/core-agent-tui.

Package vertexcache owns the lifecycle of a single Vertex explicit context cache — Create at agent startup, Refresh on TTL pressure, Delete on session unregister.

Package webui embeds a pinned release of the mast-web operator UI (github.com/go-steer/mast-web) so the agent binary can serve it at /ui/* on its attach listener when the --ui flag is set.