Dev Tooling

Configures a self-driving development loop for JavaScript/TypeScript projects, generating configuration files and preparing OpenTangl to run autonomously.

Turns working-tree changes into well-formed local commits following Conventional Commits, with atomic boundaries and issue references.

Publishes a reviewed GitHub issue draft by creating or editing an issue with the gh CLI, assigning it to the current user, and never commenting, closing, or reopening issues.

Manages persistent terminal sessions, windows, and panes with tmux, including scripting multi-pane layouts and automating commands from shell scripts.

Provides guidance and patterns for using a vector-powered CLI for semantic file search with Claude/Codex skills.

Compare AI-generated UI variants in a running local app, then keep the chosen option and remove temporary code.

Build clean async pipelines with fp-ts TaskEither, replacing nested try/catch blocks with composable error handling and real API examples.

Provides expert guidance on modern Java 21+ development, covering virtual threads, pattern matching, Spring Boot 3.x, GraalVM, and cloud-native enterprise patterns.

Iterates through pending development plans in .cursor/plans, implementing tasks, running self-tests, reviewing code, committing locally, and moving completed plans to docs/plans/done.

Implements tasks from an OpenSpec change, tracking progress and pausing for clarification when needed.

Manages tmux sessions, windows, and panes for persistent terminal work and scriptable multi-pane layouts.

Provides comprehensive guidance for performing symbolic algebra, calculus, linear algebra, equation solving, physics calculations, and code generation using the SymPy Python library.

Provides guidance and patterns for using a vector-powered CLI for semantic file search with a Claude/Codex skill.

Write idiomatic C++ code with modern features, RAII, smart pointers, and STL algorithms. Handles templates, move semantics, and performance optimization.

Build clean async pipelines with fp-ts TaskEither, replacing nested try/catch with composable error handling, chaining, and parallel execution.

Provides expert guidance on modern Java 21+ development, including virtual threads, Spring Boot 3.x, JVM optimization, and cloud-native enterprise patterns.

Turns a brief product idea into working, verified code by orchestrating requirements analysis, planning, parallel implementation, QA, and multi-perspective validation.

Continuously improves Makepad development skills by capturing reusable patterns, fixing errors, and validating content during development.

Provides expert guidance on modern Julia 1.10+ development, covering performance optimization, multiple dispatch, testing, and production-ready practices.

Manage persistent terminal sessions, windows, and panes with tmux, including scripting multi-pane layouts and automating commands from bash.

Tears down a merged PR's worktree and feature branch, verifying merge status on GitHub before deleting local and remote branches and switching back to the main worktree.

Decide whether Git submodules are the right boundary for external dependencies, then execute the appropriate workflow: add and pin, bootstrap recursively, sync to a recorded commit, advance a tracked branch, edit inside a submodule without detached-HEAD surprises, remove cleanly, or configure CI checkout constraints.

Use git worktrees to work on multiple branches simultaneously with separate working directories, enabling parallel development, stacked PRs, and isolated code reviews.

Turns product strategy into a production-grade MVP or shipped full-stack application using Next.js, Supabase, and Vercel with disciplined scope and quality standards.

Uploads local images to GitHub via the gh-image CLI extension and embeds the resulting user-attachments URLs into pull requests, issues, or comments.

Creates, reviews, debugs, and modernizes Python project structure with deterministic tooling including pyproject.toml, uv, Ruff, Pyright, and pytest.

Build and maintain a browser-based office dashboard that visualizes .harness runtime state including missions, CXX status, hired workers, events, archive state, and ops exceptions.

Loads an implementation plan, executes tasks in batches with verification, and reports progress for review between batches.

Provides reference patterns for Bash on Linux and macOS, including command chaining, file operations, process management, text processing, environment variables, networking, scripting templates, and error handling.

Create a git branch following Sentry naming conventions, automatically deriving the branch type and description from current work context.

Routes UI-related tasks to the smallest useful UI skill context via the ui-skills CLI.

Executes a phased implementation plan by deploying subagents for implementation, verification, anti-pattern checks, code quality review, and committing.

Upgrades Remotion packages, compatible Mediabunny dependencies, and installed Remotion Agent Skills to their latest aligned versions.

Provides a complete workflow for IDA Pro reverse engineering of binaries (PE, ELF, APK, DLL, SO, firmware) using bundled PowerShell scripts to manage the MCP server and open files, then leverages 72 MCP tools for survey, decompilation, cross-references, data-flow tracing, patching, and reporting.

Creates a complete change proposal with design, specs, and tasks in one step, ready for implementation.

Reference for writing idiomatic, safe Bash and shell scripts with quoting, conditionals, loops, pipes, functions, and error handling.