Use when designing, changing, or debugging backend server code (REST, Node.js/TypeScript, Go), especially endpoints, response envelopes, pagination, migrations, queries, auth, password hashing, secrets, or deploys; also for N+1 queries, races, IDOR, SSRF/injection, goroutine leaks, unhandled rejections, event-loop blocking, graceful shutdown, or production-only migration failures.
EnglishUse when about to spawn or delegate work to a subagent (Agent/Task tool), choosing a model tier (haiku/sonnet/opus/fable) for a task, writing a delegation prompt, deciding whether something should be delegated at all, deciding whether to dispatch multiple subagents in parallel, verifying a delegated result, or after a delegated task failed twice and needs escalation.
EnglishGuides a user through DDD → BDD → TDD → Git for a single feature, staying code-agnostic and interactive.
EnglishUse when writing a git commit message, Japanese UI copy or app strings (ボタン/エラーメッセージ等の文言), code review comments, or a completion report, especially when tone, formality, verbosity, or review phrasing is uncertain.
EnglishElite frontend image-direction skill for generating premium, artistic, implementation-friendly website design references.
EnglishUse when building or polishing mobile app UI visuals (Flutter, SwiftUI, Jetpack Compose) — before choosing spacing, typography, color, corner radius, elevation, or motion duration; when a screen "looks off", feels cluttered, cheap, or inconsistent; when reviewing touch targets, contrast ratio, Dynamic Type, text overflow, or dark mode; also when hard-coded colors/paddings spread across widgets, or every new screen re-invents its own styling.
EnglishUse when working in a technical domain with no existing playbook, writing new coding guidelines / review criteria / checklists from scratch, judging whether a verification method actually proves a claim (test passed but does it count?), or when repeated fixes keep failing and the direction feels wrong. Domain-agnostic reasoning moves that generate concrete decision criteria for any field — not tied to any language or framework.
EnglishIncludes Backend Server Playbook, Dispatching Subagents, Feature Flow, and other workflows.
Supported by the Atlas install prompt. Skill-specific requirements vary.
Pack stats
What’s included
Backend Server Playbook
Use when designing, changing, or debugging backend server code (REST, Node.js/TypeScript, Go), especially endpoints, response envelopes, pagination, migrations, queries, auth, password hashing, secrets, or deploys; also for N+1 queries, races, IDOR, SSRF/injection, goroutine leaks, unhandled rejections, event-loop blocking, graceful shutdown, or production-only migration failures.
Dispatching Subagents
Use when about to spawn or delegate work to a subagent (Agent/Task tool), choosing a model tier (haiku/sonnet/opus/fable) for a task, writing a delegation prompt, deciding whether something should be delegated at all, deciding whether to dispatch multiple subagents in parallel, verifying a delegated result, or after a delegated task failed twice and needs escalation.
Feature Flow
Guides a user through DDD → BDD → TDD → Git for a single feature, staying code-agnostic and interactive.
Golden Examples
Use when writing a git commit message, Japanese UI copy or app strings (ボタン/エラーメッセージ等の文言), code review comments, or a completion report, especially when tone, formality, verbosity, or review phrasing is uncertain.
Imagegen Frontend Web
Elite frontend image-direction skill for generating premium, artistic, implementation-friendly website design references. Uses combinatorial variation to avoid repetitive
Mobile UI Playbook
Use when building or polishing mobile app UI visuals (Flutter, SwiftUI, Jetpack Compose) — before choosing spacing, typography, color, corner radius, elevation, or motion duration; when a screen "looks off", feels cluttered, cheap, or inconsistent; when reviewing touch targets, contrast ratio, Dynamic Type, text overflow, or dark mode; also when hard-coded colors/paddings spread across widgets, or every new screen re-invents its own styling.
Thinking Kernel
Use when working in a technical domain with no existing playbook, writing new coding guidelines / review criteria / checklists from scratch, judging whether a verification method actually proves a claim (test passed but does it count?), or when repeated fixes keep failing and the direction feels wrong. Domain-agnostic reasoning moves that generate concrete decision criteria for any field — not tied to any language or framework.
Quick start
- Choose your skills. Select individual skills above, or choose the entire pack.
- Copy the install prompt. Use Copy install prompt above the list.
- Send it to your agent. Paste into your coding agent’s chat. Your agent reviews the source and guides the setup.
Try it with your agent
After installation, start with a request like:
Use the Backend Server Playbook skill to help with my task.
Ask me for the context you need before getting started.Requirements & license
- A coding agent that can access your project files and install skills.
- Your agent checks each skill’s instructions, dependencies, and permissions during setup.
- Reported license for the skills shown: MIT. The author’s terms apply.