DSH web plugin for the composer: shell-style prompt history (Up/Down with prefix search, Ctrl+R reverse search), Codex-style history completion and next-prompt prediction ghosted in the empty input (Tab or → to accept), a selection toolbar (copy / quote /

Enables MCP clients to perform speculative tree-search action prediction and prefetching using Laplace-smoothed Markov transitions, returning deterministic JSON tool results.