Claude Skills by thedixitjain

You are an expert in Nest.js with deep knowledge of enterprise-grade Node.js application architecture, dependency injection patterns, decorators, middleware, guards, interceptors, pipes, testing strategies, database integration, and authentication systems.

NestJS architecture patterns for modules, controllers, providers, DTO validation, guards, interceptors, config, and production-grade TypeScript backends.

NestJS architecture patterns for modules, controllers, providers, DTO validation, guards, interceptors, config, and production-grade TypeScript backends.

Safe Python Netmiko patterns for read-only collection, bounded batch SSH, TextFSM parsing, guarded config changes, timeouts, and network automation error handling.

Expert network engineer specializing in modern cloud networking, security architectures, and performance optimization.

States load-bearing decisions, invariants, and weak points. Use when judging a design change. Do not use for gating; use night-market-change-control.

Rebuild the dev environment: uv, Python tiers, pins, traps. Use when onboarding or toolchain breaks. Do not use for daily commands; use night-market-operations.

Classify, gate, and review changes. Use when landing a PR, releasing, or amending rules. Do not use for failure triage; use night-market-debugging-playbook.

Triage night-market failures by symptom (hooks, CI, tests). Use when a check fails unexpectedly. Do not use for routine gates; use night-market-operations.

Chronicles settled battles, reverts, and dead ends. Use when a fix echoes a past failure. Do not use for live triage; use night-market-debugging-playbook.

Run and ship this repo: make targets, artifacts, release runbook. Use when testing, linting, or releasing. Do not use for setup; use night-market-build-and-env.

Debug Node.js via --inspect + Chrome DevTools Protocol CLI.

Node.js development principles and decision-making. Framework selection, async patterns, security, and architecture. Teaches thinking, not copying.

'Collect Notion API diagnostic info for troubleshooting and support tickets. Use when encountering persistent API issues, token/auth failures, page access problems, or preparing diagnostic bundles for Notion support. Trigger with phrases like \"notion debug\", \"notion diagnostic\", \"notion support bundle\", \"collect notion logs\", \"notion troubleshoot\". '

| Execute Notion incident response procedures with triage, mitigation, and postmortem. Use when responding to Notion API outages, investigating errors, or running post-incident reviews for Notion integration failures. Trigger with phrases like \"notion incident\", \"notion outage\", \"notion down\", \"notion on-call\", \"notion emergency\", \"notion broken\".

'Migrate data to/from Notion or between Notion workspaces with data mapping and validation. Use when migrating data into Notion databases, exporting from Notion, syncing between workspaces, or building ETL pipelines with Notion as source or destination. Trigger with phrases like \"migrate notion\", \"notion migration\", \"import to notion\", \"export from notion\", \"notion data migration\", \"notion ETL\". '

'Optimize Notion API performance with caching, batching, parallel requests, and incremental sync. Use when experiencing slow API responses, implementing caching strategies, reducing API call volume, or tuning request patterns for Notion integrations. Trigger with phrases like \"notion performance\", \"optimize notion api\", \"notion latency\", \"notion caching\", \"notion slow\", \"notion batch requests\", \"notion incremental sync\", \"notion reduce api calls\". '

| Design and implement a production-ready Notion integration architecture with proper layering, caching, error handling, and testing strategies. Use when designing a new Notion integration, reviewing existing project structure, establishing architecture standards for a Notion application, or migrating from ad-hoc API calls to a layered architecture. Trigger with \"notion architecture\", \"notion project structure\", \"notion reference architecture\", \"notion integration design\", \"notion la...

'Upgrade @notionhq/client SDK versions and migrate between Notion API versions. Use when updating SDK packages, handling breaking changes between API versions, adopting new SDK features like comments API or status properties, or migrating Python notion-client. Trigger with phrases like \"upgrade notion SDK\", \"notion migration\", \"notion breaking changes\", \"update notionhq client\", \"notion API version upgrade\", \"notion deprecation\". '

Nuxt 4 app patterns for hydration safety, performance, route rules, lazy loading, and SSR-safe data fetching with useFetch and useAsyncData.

Architectural style selection decision matrices, trade-off analysis, structural enforcement rules, and combination patterns. Load when choosing or evaluating architecture styles.

Comprehensive architecture patterns, methodologies, quality frameworks, and evaluation methods for solution architects. Load when designing system architecture or selecting patterns.

nWave concierge — ask any question about methodology, project state, commands, migration, or troubleshooting. Read-only, contextual answers.

Cross-agent collaboration protocols, workflow handoff patterns, and commit message formats for TDD/Mikado/refactoring workflows

Step-by-step workflow for converting bloated command files to lean declarative definitions

Data architecture patterns (warehouse, lake, lakehouse, mesh), ETL/ELT pipelines, streaming architectures, scaling strategies, and schema design patterns

Generates C4 architecture diagrams (context, container, component) in Mermaid or PlantUML. Use when creating or updating architecture visualizations.

Domain modeling with algebraic data types, smart constructors, and type-level error handling

Hexagonal architecture patterns with pure core and side-effect shell for functional codebases

Git change frequency hotspot analysis — find the most-changed files in your codebase

JTBD opportunity scoring and prioritization - outcome statement format, opportunity algorithm, scoring interpretation, feature prioritization, and opportunity matrix template

DDD-guided legacy refactoring patterns -- strangler fig, bubble context, ACL migration, 14 tactical/strategic/infrastructure patterns, and incremental monolith-to-microservices methodology

Enhanced Mikado Method for complex architectural refactoring - systematic dependency discovery, tree-based planning, and bottom-up execution

[EXPERIMENTAL] Complex refactoring roadmaps with visual tracking

Blameless post-mortem structure, incident timeline reconstruction, response evaluation, and organizational learning

Progressive L1-L6 refactoring hierarchy, 22 code smell taxonomy, atomic transformations, test code smells, and Fowler refactoring catalog

Quality gates - 11 commit readiness gates, build/test protocol, validation checkpoints, and quality metrics

SQL and NoSQL query optimization techniques, indexing strategies, execution plan analysis, JOIN algorithms, cardinality estimation, and database-specific query patterns

Applies the Refactoring Priority Premise (RPP) levels L1-L6 for systematic code refactoring. Use when improving code quality through structured refactoring passes.

Root cause analysis and debugging

25 real-world system design case studies condensed from Alex Xu's System Design Interview Vol 1 and 2 - requirements, architecture, deep dive insights, key takeaways

Runs a timeboxed PROBE to validate one core assumption, then optionally PROMOTES the probe into a walking skeleton — the first e2e thin slice of the feature, committed and demo-able. Use after DISCUSS when the feature involves a new mechanism, performance requirement, or external integration.

Advanced architecture stress analysis methodology for designing systems that survive unknown stresses. Load when --residuality flag is used or when designing high-uncertainty, mission-critical systems.

Port the state-delta + property-based testing paradigm to languages other than Python. DIY recipes per language; canonical Python ref shipped in nwave_ai.state_delta.

Deep knowledge for Outside-In TDD - double-loop architecture, ATDD integration, port-to-port testing, walking skeletons, and test doubles policy

Test design mandate enforcement, test budget validation, TDD phase validation (3-phase canon per ADR-025), and external validity checks for the software crafter reviewer

Detailed refactoring mechanics with step-by-step procedures, and test code smell catalog with detection patterns and before/after examples

Configure and optimize Nx monorepo workspaces. Use when setting up Nx, configuring project boundaries, optimizing build caching, or implementing affected commands.

Configure and optimize Nx monorepo workspaces. Use when setting up Nx, configuring project boundaries, optimizing build caching, or implementing affected commands.

'Collect Obsidian plugin debug evidence for support and troubleshooting. Use when encountering persistent issues, preparing bug reports, or collecting diagnostic information for plugin problems. Trigger with phrases like \"obsidian debug\", \"obsidian diagnostic\", \"collect obsidian logs\", \"obsidian support bundle\". '