Skill Workspace Monorepo Migration Design

Status

Design a full migration plan that turns this repository from a single-root implementation repo with bundled skill wrappers into a true multi-package monorepo whose primary deliverables are skills and their runtimes.

create an execution trace for the migration-design workstream
inspect the current Go, JS, skill-packaging, docs, and test boundaries that constrain the migration
define the target monorepo package layout, including shared coordination core, runtime packages, and agent-facing skill bundles
define the rollout sequence, compatibility rules, and packaging/test implications
capture the resulting design in-repo and keep roadmap state synchronized

create the active execution roadmap for the skill-workspace monorepo migration design workstream
inspect current repository structure, packaging scripts, and skill boundaries
define the target package layout and ownership boundaries
define the migration phases, compatibility strategy, and validation plan
capture the migration design in-repo
update docs/implementation-roadmap.md if the design materially changes the repository roadmap
archive this execution roadmap with a completion summary if the design slice is complete

treat this work as architecture design rather than implementation so the output should be a concrete migration blueprint, not partial directory churn

start the actual workspace bootstrap phase by adding go.work, expanding workspace manifests, and creating the first package roots described by the migration plan

inspected the current root-owned runtime model, including cmd/, internal/, skill asset packaging, skill forward-test plans, and the JS workspace boundaries
produced docs/skill-workspace-monorepo.md, which defines the target repository model, package layout, ownership rules, packaging flow, testing model, and phased migration plan
updated docs/implementation-roadmap.md so the repository now explicitly tracks the monorepo migration as the next major milestone rather than continuing to grow root-owned runtimes