Write and maintain Behavior-Driven Development tests with Gherkin and Cucumber. Use when defining acceptance scenarios, writing feature files, implementing step definitions, running Three Amigos sessions, or diagnosing BDD test quality issues. Keywords: bdd, gherkin, cucumber, given when then, feature files, step definitions, acceptance criteria, three amigos, example mapping.

Guides TDD (test-driven development) with red-green-refactor workflows, test-first feature delivery, bug reproduction through failing tests, behavior-focused assertions, and refactoring safety. Use when writing unit tests, implementing new functions, adding test coverage, fixing regressions, changing APIs, or restructuring code under test — especially when a user says "write tests first", "TDD", or "test before code".

Apply SOLID principles, detect design anti-patterns, and evaluate architectural tradeoffs for code reviews, design decisions, and refactoring. Use when reviewing code for maintainability issues, evaluating architecture decisions, identifying code smells and technical debt, or refactoring modules with coupling or testability problems.

Write clear, testable acceptance criteria for user stories and feature delivery; use when defining done conditions, creating measurable requirements, applying INVEST checks, documenting negative scenarios, and aligning product, engineering, and QA on expected outcomes.

Create and maintain AGENTS.md documentation for simple projects and complex monorepos with deterministic discovery, scoped instruction files, and low-token navigation patterns; use when generating AGENTS.md, updating agent docs, or standardizing AI-facing project guidance.

Audit and improve skill collections with 8-dimension scoring framework (Knowledge Delta, Anti-Patterns, Progressive Disclosure), duplication detection, remediation planning, CI quality gates, tessl compliance, A-grade optimization, baseline comparison, trend analysis, artifact validation, consistency checking. Use when evaluating skill quality, generating remediation plans, validating report format, skill-judge framework, score thresholds, enforcing repository-wide skill artifact conventions, or when users say 'check my skills', 'review skill files', 'skill audit', 'improve my SKILL.md files', 'find duplicate skills', 'validate skill format', 'quality check my skills', 'A-grade scoring', 'tessl compliance', 'skill assessment', or 'quality gates'.

Any UI related work **MUST** reference this before you start.

Creates structured specifications, validates execution plans against specs, manages two-loop planning-to-execution workflows with decision gates, and captures provenance of AI-generated work. Use when building software with AI coding agents, when starting any non-trivial feature or change, when an agent keeps building the wrong thing, when you want repeatable and verifiable AI-assisted development, or when someone mentions spec-driven, SDD, specification first, or code is a side effect. Also use when the user wants to structure agent workflows, create specifications, establish decision gates between planning and execution, or capture provenance.

Review PRs, MRs, and Gerrit changes with focus on security, maintainability, and architectural fit. Leverages github, gitlab, or gerrit skills based on repository context. Use when asked to review my code, check this PR, review a pull request, look at a merge request, review a patchset, or provide code review feedback.

Submit, amend, and review Gerrit changes using git-review CLI. Use when asked to submit a patchset, download a change, rebase a change request, check CR status, or manage code reviews in Gerrit.

Search and manage Confluence pages and spaces using CQL, read/create/update pages with Markdown support. Use when working with Confluence documentation.

Create and manage GitLab issues, merge requests, pipelines, and repositories using the glab CLI. Use when asked to open an MR, review a merge request, check CI/CD pipelines, list issues, or manage code review on GitLab.

Search and manage Jira issues using JQL queries, create/update tickets, and manage workflows. Use when asked to find Jira tickets, check the backlog, manage sprints, track bugs, or work with Atlassian project management.

Create and manage GitHub issues, pull requests, workflows, and repositories using the gh CLI. Use when asked to open a PR, merge a pull request, check repo actions, list issues, create a branch, or manage GitHub projects.

Upload, download, search, and share files on Google Drive. Create folders and manage permissions. Use when asked to share a file, upload to gdrive, search cloud storage, manage a Drive folder, or organize Google Drive files.

Create and edit Google Slides presentations. Add or delete slides, insert text, shapes, and images. Use when asked to build a deck, create a slideshow, update a Google presentation, or edit slides.

Create, update, and organize Google Calendar events and schedules. Check availability, book time, and manage calendars. Use when asked to schedule a meeting, set up an appointment, book a call, check gcal, or manage calendar events.

Send, search, and organize Gmail messages, drafts, and labels. Use when asked to compose an email, reply to mail, forward a message, search inbox, manage attachments, or organize Gmail.

Read, write, and format Google Sheets spreadsheets. Manage cell values, ranges, formulas, pivot tables, and charts. Use when asked to update a gsheet, edit a Google spreadsheet, add formulas, or work with spreadsheet data.

Create and modify Google Docs documents. Read content, insert tables, apply heading styles, and manage formatting. Use when asked to edit a gdoc, write a Google document, update a doc, or format document content.