| name | v8-workflow |
| description | Manages git task isolation and environment setup in V8. Use at the start of any new task or bug fix. Do not use for general C++ editing. |
V8 Workflow Skill
This skill defines the standard process for setting up and managing your
development environment in V8.
1. Task Initialization (Isolation Strategy)
Before starting any feature or bug fix, you MUST decide on a strategy:
-
Isolated Strategy (Recommended): Create a dedicated git worktree and
branch. This prevents cross-contamination between tasks. Use
create_worktree.sh.
-
Reuse Strategy: Work in the current directory and branch.
- Use this only if the user explicitly requests to continue previous work or
prefers a single-branch workflow.
-
Issue Reset: If starting a new task without a worktree, always ask
before resetting the git cl issue.
2. Path Management in Worktrees
When using an isolated worktree (e.g., worktrees/task-fix-10010110), you MUST
ensure that all file-modifying tools (replace, write_file, etc.) target the
correct directory:
- Explicit Prefixing: Always prefix
file_path arguments with the worktree
directory. For example, use worktrees/task-fix-10010110/src/wasm/... instead
of src/wasm/....
- Tool Context: Be aware that relative paths starting with
src/ or test/
will default to the main repository's root, violating task isolation.
3. Environment Setup
Once the branch is ready, ensure your local environment is configured for V8
development:
- depot_tools: Ensure it is in your PATH.
export PATH=$PATH:$HOME/depot_tools
- Output Directory: Use standard V8 output directories (e.g.,
out/x64.debug).
4. Available Tools
- create_worktree.sh: Automates task
isolation and setup. Automatically detects whether the repository is in a
standard Git checkout (creating a Git worktree) or a Rift Btrfs workspace
(forking an isolated Btrfs subvolume). Use this at the start of every new
task.
- cleanup_worktree.sh: Safely removes
task workspaces (Git worktrees or Rift subvolumes) and prunes remnants once a
CL is landed or abandoned.
