krometrail

Browser recording and control via the krometrail CLI. Use when recording a browser session, driving the browser with batch actions, or investigating recorded sessions. Captures network, console, DOM, framework state, screenshots.

Krometrail MCP navigation guide. Load this skill first to understand which tool namespace to use. Covers the three tool namespaces (debug_*, chrome_*, session_*), when to use each, common pitfalls, and pointers to the detailed skill for each namespace.

Runtime debugging via the krometrail CLI. Use when a test fails and reading the code isn't enough, when you need to inspect runtime values, or when a bug is in logic you can't trace statically. Set breakpoints, step through code, inspect variables, evaluate expressions — across 10 languages.

Project structural organization rules for TypeScript/Bun. Proactively scans for organizational issues and produces a prioritized plan. Defines the team's preferred file, folder, and module structure.

Project stylistic refactoring rules for TypeScript/Bun. Proactively scans for refactoring opportunities and produces a prioritized plan. Defines the team's preferred coding style.

Project code patterns and conventions. Auto-loads when implementing, designing, verifying, or reviewing code. Provides detailed pattern definitions with code examples.

React DevTools hook internals reference. Use when implementing or debugging React state observation — fiber tree traversal, hook linked lists, onCommitFiberRoot, state extraction, bug pattern detection.

SolidJS debug interface reference. Use when implementing or debugging Solid state observation — DEV hooks, signal tracking, ownership tree, store observation. Tier 2: requires dev-mode builds.

Svelte debug interface reference. Use when implementing or debugging Svelte state observation — $$invalidate, $capture_state, runes runtime. Tier 3: Svelte 4 doable, Svelte 5 hooks pending.

Vue DevTools hook internals reference. Use when implementing or debugging Vue state observation — component tree walking, reactivity tracking, store integration, bug pattern detection.