[TheGreatAxios]

Summary

• Moves every packages/*-tools package to tools/<name> (package names kept as @corbits/*-tools to avoid pin churn).
• Moves packages/scout-agent -> agents/scout, packages/jimmy-agent -> agents/jimmy, workflows/assistant -> agents/assistant.
• Moves packages/skills -> skills/skills (skill-authoring content); packages/tools-skills and packages/skills-tools stay tool bundles and move to tools/tools-skills and tools/skills-tools.
• Adds tools/*, agents/*, skills/* to root workspaces; regenerates tsconfig.build.json.
• Fixes every path reference across scripts (tool-registry-publish registry, check:tool-package-pins, check:tool-package-freshness, check:publishable-workflows, generate-tsconfig-references.ts, run-all.ts), docs (README, ARCHITECTURE, IMPLEMENTATION, PRODUCT, docs/*), and lint/fmt/test script globs.
• Un-privates and publishable-shapes agents/jimmy, agents/scout, skills/skills (repository/files fields, @intx/* moved from workspace deps to pinned peerDependencies).

Left in place

• packages/diligence-brief (interactive-run check pending) — kept in workflows/ per task guidance since it is single-step, mail-triggered, not an interactive agent.
• Workbench UI/composition packages (chat-ui, inbox, artifact-ui, settings-ui, onboarding, connections, agent-directory, workflows lib, etc.) — unchanged, per instructions.

Test plan

• bun run typecheck
• bun run lint
• bun run fmt:check
• bun run check:structural
• bun run test — green except 6 pre-existing, unrelated failures (all trace to workflows/workbench-digest's unimplemented schedule trigger in vendored @intx/workflow, and @intx/hub-agent vendor package having no test files) that reproduce identically on origin/main before this change.

[linear-code]

CL-8217