Root-cause-first debugging methodology for any bug, test failure, exception, or unexpected behavior — mandates investigation before proposing fixes. Use when something is broken, not working, crashing, or throwing errors; triggers: debug, error, bug,…
Browser automation and testing using playwright-cli (stateful Bash CLI for scripted tests — network inspection, console monitoring, screenshots, tracing) and Browser-Use MCP (autonomous agent flows). Use when the user needs to test web apps, debug browser…
Use when working through a specific problem or decision using a single reasoning framework applied deeply and interactively. Covers First Principles (break assumptions, rebuild from truth), Inversion (guarantee failure, then flip), Regret Minimization (decide…
Use when stuck on any problem or decision and need frameworks that actually apply to the specific situation — not a generic list. Selects the three most relevant mental models for the problem at hand and applies each one to produce a specific insight.…
Use before any significant decision, when analyzing a trend, or when evaluating the impact of any action beyond the obvious. Maps first, second, and third order consequences — the effects of the effects that most people miss. Triggers: "second order effects",…
Use when you need to explain any piece of code for handoff, onboarding, or knowledge transfer — produces a dual-audience explanation (user-facing and modifier-facing) plus the fragile part and key assumption. Triggers: "explain this code", "what does this…
Use when reviewing someone else's PR or preparing your own review comments for posting to GitHub. Implements a two-stage approval process — internal rich analysis first, human approval gate, then clean public posting. Nothing posts to GitHub until you…
A2UI (Agent-to-User Interface) renderer development for Angular 21.x. Use when building A2UI component renderers, agent-driven UIs, A2UI catalogs, action handlers, or streaming A2UI payloads. Covers protocol implementation, security validation, component…