Add worktree create/remove VSCode tasks

[sean-parent]

Summary

• Adds worktree: create / worktree: remove VS Code tasks to templates/.vscode/tasks.json, matching the pattern from github.com/stlab/cel-rs: creates a git worktree at .claude/worktrees/<name> on branch worktree-<name>, syncs it with tokensave, and opens it in a new editor window (remove reverses this).
• Unlike the cel-rs reference, the tokensave calls are wrapped to be best-effort on both bash and Windows (cmd.exe) forms — the worktree still gets created/removed and the editor still opens even if tokensave isn't installed or errors, so the primary git operation is never blocked by an optional integration.
• Converts templates/.vscode/tasks.json from strict JSON to JSONC (adds // section-divider comments); all 11 pre-existing tasks and 14 inputs are preserved byte-identical.
• Adds .claude/worktrees/ and .tokensave to templates/.gitignore.
• No changes needed to cmake/cpp-library-setup.cmake — both files were already registered for template copying.

Test plan

• cmake -P tests/install/CMakeLists.txt, tests/install/test_provider_merge.cmake, tests/setup/test_setup_version_resolution.cmake all pass (unchanged baseline)
• JSONC validated via comment-tolerant parser (13 tasks, 15 inputs)
• Template copies byte-identical into a scratch CPM consumer project
• worktree: create / worktree: remove command strings tested directly (bash and Windows/cmd.exe forms) with tokensave both present and simulated-absent
• Independent whole-branch review: pre-existing task/input content confirmed unchanged via semantic diff; tokensave short-circuit logic re-derived and confirmed correct in all 4 variants

🤖 Generated with Claude Code

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Note

Low Risk
Template-only and documentation changes; no CMake or runtime library behavior. Shell tasks run git locally in dev environments only.

Overview
Consumer projects get worktree: create and worktree: remove VS Code tasks in templates/.vscode/tasks.json, aligned with cel-rs: prompt for a name, add/remove a worktree under .claude/worktrees/<name> on branch worktree-<name>, optionally sync via tokensave, and open a new window on create.

Unlike the reference, tokensave is best-effort on bash and Windows (cmd.exe overrides): git worktree and code --new-window still run if tokensave is missing or fails. The template tasks.json is JSONC (section // comments); existing CMake/cleanup tasks are unchanged aside from comments and moving inputs to the top with a new worktreeName prompt.

templates/.gitignore now ignores .claude/worktrees/ and .tokensave. Design and implementation plan docs were added under docs/superpowers/.

^{Reviewed by Cursor Bugbot for commit 0c92a11. Bugbot is set up for automated code reviews on this repo. Configure here.}

[Copilot]

Pull request overview

Adds consumer-template VS Code tasks to create/remove git worktrees under .claude/worktrees/<name> (with best-effort tokensave integration) and updates the template ignore list accordingly, with accompanying design/plan documentation under docs/superpowers/.

Changes:

• Converted templates/.vscode/tasks.json to JSONC and added worktree: create / worktree: remove tasks plus a worktreeName prompt input.
• Updated templates/.gitignore to ignore .claude/worktrees/ and .tokensave generated by the new tasks.
• Added design + implementation plan docs describing the intended behavior and validation approach.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
templates/.vscode/tasks.json	Adds worktree create/remove tasks (with Windows overrides) and reorganizes file as JSONC with section comments.
templates/.gitignore	Ignores worktree directory and tokensave state generated by the new tasks.
docs/superpowers/specs/2026-07-16-worktree-vscode-tasks-design.md	Design spec documenting intended VS Code task behavior and best-effort tokensave wrapping.
docs/superpowers/plans/2026-07-16-worktree-vscode-tasks-plan.md	Implementation/verification plan for the template changes.

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