nicholasgriffintn

Design robust backend systems and APIs. Use when users ask to plan or implement services, data models, or integrations.

Create distinctive, production-grade frontend interfaces with high design quality. Use when users ask to build web components, pages, or applications.

A specialist skill that recognises and applies common software architecture patterns within a codebase. This skill should be used during the design and development phases of a project.

A skill that outlines best practices for using Git in a collaborative development environment, including branching strategies, commit conventions, and pull request workflows.

Analyses and optimises performance across frontend, backend and database interactions. Identifies bottlenecks and implements solutions to enhance speed and efficiency.

A specialist skill that analyses a codebase to understand its structure, dependencies, and architecture. This skill should be used at the start of a new project or when onboarding to an existing codebase.

A specialist skill for security reviews, threat modeling, and remediation guidance. Use for auth/permissions changes, secrets or PII handling, public endpoints, or dependency upgrades.

A specialist skill that designs and implements a testing strategy for a codebase. This skill should be used after code development and before code review.

Design robust backend systems and APIs. Use when users ask to plan or implement services, data models, or integrations.

Builds a fast feedback loop, reproduces the symptom, tests ranked hypotheses, instruments narrowly, fixes, and adds regression coverage. Use when the user says diagnose/debug, reports broken behaviour, failing checks, thrown errors, flaky bugs, or performance regressions.

Create distinctive, production-grade frontend interfaces with high design quality. Use when users ask to build web components, pages, or applications.

Stress-tests a plan against the existing domain language, code, and documented decisions, then updates CONTEXT.md or ADRs as decisions crystallise. Use when the user wants to be grilled on a design, validate a plan, sharpen terminology, or record the reasoning behind a decision.

Reviews a codebase for architectural friction and proposes deepening opportunities grounded in its domain language, tests, dependencies, and ADRs. Use when the user wants architecture review, refactoring candidates, better module shape, clearer seams, or a codebase that is easier to test and navigate.

A specialist skill for security reviews, threat modeling, and remediation guidance. Use for auth/permissions changes, secrets or PII handling, public endpoints, or dependency upgrades.

Drives changes through a strict red-green-refactor loop using behaviour tests at the public interface. Use when the user asks for TDD, test-first development, integration tests, regression coverage, or a feature built one vertical slice at a time.