Bite-sized TDD plan covering 14 tasks across 4 PRs: manifest parser/store,
PluginManager + bootstrap injector + session wiring, RPC surface, and
TUI /plugins command. Each task has full code, expected test failures,
and acceptance criteria. Final task is the Superpowers brainstorming
end-to-end check from the spec.
Captures the design decisions for /plugins: Kimi-native + Codex-fallback
manifest, skill injection via the existing extraDirs pipeline, narrow
bootstrap via the agent injection framework, and the four-PR phasing for
M1 (parser/store), M2 (manager + bootstrap), M3 (RPC), M4 (TUI).
