CLI Tools

Write efficient BigQuery queries for Mozilla telemetry. Use when user asks about: Firefox DAU/MAU, telemetry queries, BigQuery Mozilla, baseline_clients, events_stream, search metrics, user counts, or Firefox data analysis.

Use the hack CLI for local dev environments (docker compose, logs, run commands) and agent integration setup. Trigger when asked to start/stop services, open project URLs, inspect logs, run commands in services, manage branch instances, or configure agent integrations (Cursor/Claude/Codex/MCP). Prefer CLI over MCP when shell access is available.

Add context to LOCAL BTR tree (NOT ByteRover/brv). Use `btr` CLI or `mcp__btr__*` MCP tools. Add or update context in the BTR tree with AI-powered metadata extraction. Use when the user wants to "add to context tree", "store this in BTR", "curate to BTR", or needs to organize knowledge with intelligent tagging.

Provides idiomatic Go programming expertise and best practices. Ensures clean, efficient, and maintainable code following official Go conventions. Specializes in concurrent programming patterns, interface design, error handling strategies, and performance optimization. Masters standard library usage and ecosystem integration.Use when: writing Go code (.go files), designing interfaces and struct types, implementing concurrent patterns (goroutines/channels), handling errors idiomatically, writing table-driven tests, creating Go modules, optimizing performance-critical code, managing dependencies with go.mod, implementing HTTP servers and clients, working with context propagation, or designing package APIs for public libraries.

Browser automation, debugging, and performance analysis using Puppeteer CLI scripts. Use for automating browsers, taking screenshots, analyzing performance, monitoring network traffic, web scraping, form automation, and JavaScript debugging.

Use PROACTIVELY when debugging React Native apps. Reads console logs and executes JavaScript in running apps via Metro bundler. Invoke for: app crashes, state inspection, API debugging, error investigation, or running diagnostic code. Requires Metro running (port 8081).

Review test cases for Authorization Endpoint. Covers response_type=code, request parameters (scope, client_id, redirect_uri, state, nonce, prompt, display, max_age), and authorization response per OIDC Core 1.0 Section 3.1.2.

MongoDB CLI 工具。直接執行 MongoDB 查詢語法，支援 CRUD、聚合、索引管理。輸出格式：table/json/csv/yaml。預設唯讀模式保護生產環境。

Frontend development guidelines for Angular 19/TypeScript applications. Covers NG-ZORRO components, RxJS state management, auto-generated API clients, LESS styling with themes, feature-based organization, decorators, and performance optimization. Use when creating components, services, features, styling, routing, or working with frontend code.

Compile MQL5 indicators via CLI using X: drive mapping to bypass 'Program Files' path spaces issue. Use PROACTIVELY after editing ANY .mq5 or .mqh file. Triggers - after editing MQL5 code, compile, build, MetaEditor, .mq5, .mqh, indicator, script, EA, expert advisor, "test it", "try it", "run it", path space errors. (project)

Upload images to Imgur via API and get shareable links. Supports anonymous upload (Client ID) and authenticated upload (Access Token). Returns detailed JSON with image URLs, delete links, dimensions, and metadata. Use when the user needs to upload images to Imgur, share images publicly, or get image hosting URLs.

Craft Substack newsletter posts optimized for engagement, open rates, and subscriber growth.Use when writing headlines/subject lines, structuring posts, crafting hooks, writing teasersfor next issues, or adapting content between newsletter and Notes. Includes email-firstoptimization, the cliff-hanger technique, SEO integration, and Spanish-language patterns.

Convex React client - hooks, real-time updates, optimistic updates, pagination, and UI patterns

Comprehensive React 19 patterns including all hooks, Server/Client Components, Suspense, streaming, and transitions. Ensures correct React 19 usage with TypeScript.

Create new Agent Skills for Claude Code. Use when user wants to create a skill, add a new capability, document a CLI workflow, or asks how skills work.

Expert TypeScript/JavaScript development guidance. Use when planning or writing TypeScript/JavaScript code, setting up TS/JS projects, configuring build tools (pnpm, Vite, TypeScript), implementing tests (Vitest), adding logging (pino for services, chalk/console for CLIs), working with React/Tailwind/Xstate, or following FP patterns. Covers stack decisions, tooling setup, testing strategies, and logging patterns for both services and CLI tools.

Build, run, test, and debug Apple platform apps (iOS, macOS) headlessly using xcede CLI. Use when working with Xcode projects or Swift packages outside of Xcode IDE. Covers building for devices/simulators/Mac, running apps, executing tests (XCTest/Swift Testing), debugging with lldb, and configuring projects via .xcrc files.

Autonomous decision-making CLI for strategy development (project)

Competitive analysis framework for CollectiveGood positioning. Researches companies in AI validation,human-in-the-loop systems, clinical AI evaluation spaces. Produces comprehensive competitive assessmentscovering business model, technology, market positioning, and differentiation opportunities.USE WHEN user says "competitive analysis", "assess competitor", "compare to [company]","market positioning", or requests research on companies in CollectiveGood's space.

Understand and debug how jsgui3 SSR markup becomes activated client-side, including persisted fields (data-jsgui-fields) and ctrl_fields (data-jsgui-ctrl-fields), and where to patch/plugin.