langstar

Manage git worktrees for parallel feature development following Langstar's issue-driven workflow. Create worktrees with correct target branches based on issue hierarchy, handle cleanup after PR merge, and maintain worktree hygiene. Use when setting up parallel development environments, working on multiple issues simultaneously, or when users mention worktrees, parallel branches, or issue-based development.

Enforce project hygiene throughout the PR lifecycle. Use before creating PRs to validate worktrees, branch naming, and issue linking. Use when creating PRs to ensure proper "Fixes

Orchestrate replying to multiple GitHub PR review comments in parallel. Use when the user wants to reply to multiple PR review comments or resolve all unresolved comments on a PR.

Break down GitHub issues into official GitHub sub-issues by parsing task lists from parent issue descriptions. Use this skill when a user wants to convert a parent issue with tasks into linked sub-issues, when managing complex features that need hierarchical breakdown. Accepts issue number as parameter or prompts user if not provided.

Remote control tmux sessions for interactive command-line work. Send keystrokes and scrape pane output from Python REPLs, debuggers, and other interactive terminal applications. Use when working with interactive CLI tools, debugging sessions, or REPL-driven development.

Run Rust cargo tests properly in git worktrees with environment variable sourcing. Use when cargo test fails, when seeing authentication errors, when test results differ between runs, or before running pre-commit checks in worktrees. Essential for integration tests requiring LANGSMITH_API_KEY or ANTHROPIC_API_KEY.

Managing LangGraph Cloud deployments through listing, filtering, and cleanup operations. Use when managing test deployments, cleaning up orphaned resources, filtering by name patterns, or handling bulk deletion. Automatically sources credentials from devcontainer environment.

Create a structured notes directory for studying and documenting remote GitHub repositories. Use this skill when the user wants to set up a workspace for researching, analyzing, or taking notes on an external GitHub repository. Creates separate committed notes/ directory and gitignored code/ directory.

Execute automated release workflow for Rust projects using Conventional Emoji Commits. Analyze commits since last release, determine semantic version bump (MAJOR/MINOR/PATCH), update Cargo.toml, generate changelog with git-cliff, create git tags, and publish GitHub releases. Use when the user requests to cut a release, bump version, create a release, or publish a new version. Also use when the user asks about the release process or wants to preview what the next release would be.

Manage GitHub parent-child issue relationships using the gh-sub-issue extension. Link existing issues as sub-tasks, create new sub-issues, list relationships, and remove links. Use when working with GitHub issue hierarchies, Epic breakdowns, phased development, or when users mention sub-issues, sub-tasks, parent issues, or issue hierarchies.

Update GitHub issue project statuses for single or multiple issues using the GitHub Projects V2 API. Use when needing to programmatically set issue statuses (todo, in_progress, done) in GitHub Projects, especially when the user wants to update project board status or when handling multiple issues at once. Requires GITHUB_PROJECT_PAT or GH_PROJECT_PAT environment variable with project permissions.