Creates 4 core project docs (requirements.md, architecture.md, tech_stack.md, patterns_catalog.md). ALWAYS created.

Creates infrastructure.md (always) and runbook.md (if hasDocker). DevOps documentation worker.

Frontend structure worker: SCAFFOLD new React project or RESTRUCTURE existing monolith to component-based architecture

E2E Critical Coverage audit worker. Validates E2E coverage for critical paths (Money 20+, Security 20+, Data 15+). Pure risk-based - no pyramid percentages.

Story-level quality orchestrator with 4-level Gate (PASS/CONCERNS/FAIL/WAIVED) and Quality Score. Delegates to ln-510 (quality) and ln-520 (tests), calculates final verdict.

Coordinates project documentation creation. Gathers context once, detects project type, delegates to specialized workers (ln-111-115).

Configures health check endpoints for Kubernetes readiness/liveness/startup

Builds dependency graph, detects cycles (DFS), validates boundary rules, calculates coupling metrics (Ca/Ce/I, CCD/NCCD). Adaptive architecture detection.

Fixes tasks in To Rework and returns them to To Review. Applies reviewer feedback only for the selected task.

Orchestrates test planning pipeline (research → manual → auto tests). Coordinates ln-521, ln-522, ln-523.

Generate an execution plan from a spec, with milestones, tasks, and test coverage for all acceptance criteria. Use when the user wants to plan a project, break a spec into milestones, generate tasks from a spec, or create an execution plan. Optionally creates a Linear project.

Migrates a monorepo package from `tsup` to `tsdown`. Use when asked to migrate a package to `tsdown` and the package has used `tsup` thus far.

Generate local PR/branch review artifacts for the current branch vs its base - an in-repo canonical spec (if present) or an inferred review `spec.md`, plus `system-design-review.md`, `code-review.md`, and `walkthrough.md` (via `.agents/skills/drive-pr-walkthrough/SKILL.md`). Writes artifacts to disk (next to the in-repo spec when present, otherwise under `wip/`). Use when the user asks for a local PR/branch review, a code review, a system design review, to "review this branch", or to produce written review docs. Do not modify implementation code.

Create a new transient project workspace under projects/<project>/ (folders + optional stub docs), then hand off to drive-create-spec / drive-generate-plan.

Generate and iteratively refine engineering specs from a description, conversation summary, or blank template. Use when the user wants to create a spec, PRD, product requirements document, write up requirements, or spec out a feature. Also use when summarising a conversation into a spec.

Bumps `biome` package versions (e.g. `@biomejs/biome`) using `pnpm`, aligns `biome.jsonc` files with the new version/s across the repository and runs biome-related checks. Use when required to update `biome` to a newer version - explicitly or implicitly (e.g. after running `pnpm up`, `pnpm update`, `pnpm upgrade` without specific package names).

Detects and fixes accessibility issues in React/Fluent UI webviews. Use when reviewing code for screen reader compatibility, fixing ARIA labels, ensuring keyboard navigation, adding live regions for status messages, or managing focus in dialogs.

Record real OpenAI/Anthropic HTTP back-and-forth (requests + responses, including streaming text/event-stream) and print paste-ready Swift fixtures for SwiftAgent unit tests (ReplayHTTPClient) using the AgentRecorder CLI or HTTPReplayRecorder. Use when adding/updating any provider adapter tests (text, streaming, structured outputs, tool calls), when payload formats change, or when debugging agent loop mismatches by inspecting recorded JSON/SSE payloads.

Comprehensive R package for command-line interface styling, semantic messaging, and user communication. Use this skill when working with R code that needs to: (1) Format console output with inline markup and colors, (2) Display errors, warnings, or messages with cli_abort/cli_warn/cli_inform, (3) Show progress indicators for long-running operations, (4) Create semantic CLI elements (headers, lists, alerts, code blocks), (5) Apply themes and customize output styling, (6) Handle pluralization in user-facing text, (7) Work with ANSI strings, hyperlinks, or custom containers. Also use when migrating from base R message/warning/stop, debugging cli code, or improving existing cli usage.

Prepare R packages for CRAN submission by checking for common ad-hoc requirements not caught by devtools::check(). Use when: (1) Preparing a package for first CRAN release, (2) Preparing a package update for CRAN resubmission, (3) Reviewing a package to ensure CRAN compliance, (4) Responding to CRAN reviewer feedback. Covers documentation requirements, DESCRIPTION field standards, URL validation, examples, and administrative requirements.