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Found 3,319 Skills
AI rules for writing tests with Stably Playwright SDK. Use this skill when writing or modifying Playwright tests with Stably AI features. Covers when to use Playwright vs Stably methods, plus minimal patterns for aiAssert, extract, getLocatorsByAI, agent.act, Inbox, and Google auth.
This skill should be used when the user asks to "implement a feature in Elixir", "refactor this module", "should I use a GenServer here?", "how should I structure this?", "use the pipe operator", "add error handling", "make this concurrent", or mentions protocols, behaviours, pattern matching, with statements, comprehensions, structs, or coming from an OOP background. Contains paradigm-shifting insights.
Explains the ADK Dev Console — what each tab shows, how to read Agent Steps, traces, and other UI features visible at localhost:3001 during adk dev
Designs an A/B test or experiment with clear hypothesis, variants, success metrics, sample size, and duration. Use when planning experiments to validate product changes or test hypotheses.
Use when the user wants to extract, generate, refine, or harden an OpenAPI or Swagger specification from an existing API application, service, project, repo, routes, controllers, handlers, or codebase. Select this skill for any request whose intent is to derive, extract, generate, reverse-engineer, infer, document, or harden an OpenAPI or Swagger contract from an existing application or source code. This includes generic prompts about producing an API spec/docs/schema/contract for an existing app, project, service, repo, endpoints, routes, or controllers. Prefer this skill over extraction-only skills when the prompt is about an existing application or codebase and the expected outcome is an accurate extracted contract plus post-extraction refinement.
Golang configuration library using spf13/viper — layered precedence (flag > env > file > KV > default), BindPFlag/BindPFlags, SetEnvPrefix + SetEnvKeyReplacer + AutomaticEnv, ReadInConfig + ConfigFileNotFoundError, Unmarshal + mapstructure struct tags, Sub for sub-trees, WatchConfig + OnConfigChange for hot reload, viper.New() for test isolation, and remote KV integration. Apply when using or adopting spf13/viper, or when the codebase imports `github.com/spf13/viper`. For CLI command structure alongside viper, see the `samber/cc-skills-golang@golang-spf13-cobra` skill. For general CLI architecture, see `samber/cc-skills-golang@golang-cli`.
Analyzes and rewrites prompts for better AI output, creates reusable prompt templates for marketing use cases (ad copy, email campaigns, social media), and structures end-to-end AI content workflows. Use when the user wants to improve prompts for AI-assisted marketing, build prompt templates, or optimize AI content workflows. Also use when the user mentions 'prompt engineering,' 'improve my prompts,' 'AI writing quality,' 'prompt templates,' or 'AI content workflow.'
Use when planning product experiments, writing testable hypotheses, estimating sample size, prioritizing tests, or interpreting A/B outcomes with practical statistical rigor.
Guide and conduct user research — from planning through synthesis. Interview scripts, survey design, usability test plans, diary studies, contextual inquiry. Plus synthesis: affinity mapping, thematic coding, insight extraction. Trigger when: planning user research, writing interview guides, designing usability tests, creating surveys, synthesizing research findings, "what should we research?", "how do I test this?", "write an interview guide", or any question about understanding users through evidence.
Provides Playwright test patterns for resilient locators, Page Object Models, fixtures, web-first assertions, and network mocking. Must use when writing or modifying Playwright tests (.spec.ts, .test.ts files with @playwright/test imports).
Comprehensive Alembic database migration management for customer support systems
Rust Clap CLI argument parsing best practices. This skill should be used when writing, reviewing, or refactoring Rust CLI applications using clap. Triggers on tasks involving argument parsing, CLI design, subcommands, and command-line interfaces in Rust.