Use this skill when the user asks to design, audit, or harden Claude Platform Messages API context budgets, token counting, prompt caching, cache diagnostics, context editing, server-side compaction, context-window overflow policy, or mid-conversation system-message modes around a fixed effort setting. Do not use it for tool dispatch correlation, durable memory systems, generic context-writing advice, executor implementation, or Bash ownership.

This skill should be used when the user asks to implement, audit, or harden application-side handlers for Anthropic-defined Claude API client tools: memory, bash, text editor, or computer use; including sandboxing, path containment, command/action allowlists, session state, idempotency, tool_result construction, and execution evidence. Do not use it for Claude Code permissions, Anthropic server tools, MCP, Claude Code headless CLI, Agent SDK automation, or the generic Messages API tool loop.

CI/CD and release engineering: pipeline architecture, multi-environment strategy, deployment rollback (blue-green/canary), code-quality gates, dependency governance, git-hook automation. [EXPLICIT] Trigger: 'ci/cd', 'pipeline', 'rollback', 'canary', 'blue-green', 'release', 'quality gate', 'staging'.

This skill should be used when the user asks to design, configure, audit, or choose Claude Code channels, MCP channel servers, --channels startup flags, external push events, channel plugins, permission relay, or channel-vs-schedule/hook/headless decisions.

BI solution design — semantic layers, dashboard patterns, self-service analytics, KPI frameworks. Use when the user asks to 'design BI architecture', 'build a KPI framework', 'set up self-service analytics', 'design dashboard hierarchy', 'create a semantic layer', or mentions metric trees, drill-down patterns, or reporting strategy. [EXPLICIT]

Generate Gherkin BDD scenarios across all quality angles — functional, accessibility, security, performance, SEO, offline, UI, backend, data, DevSecOps, CI/CD. Runner-agnostic step definitions with traceability to requirements and constitutional principles. [EXPLICIT] Trigger: 'BDD', 'Gherkin', 'Given When Then', 'full-spectrum testing', 'acceptance scenarios'

This skill should be used when the user asks to isolate Claude Code work with git worktrees, run Claude Code with --worktree or -w, configure .worktreeinclude, add WorktreeCreate or WorktreeRemove hooks, set worktree.baseRef, run subagents with isolation: worktree, clean up .claude/worktrees, use EnterWorktree, or avoid file conflicts between parallel sessions.

This skill should be used when the user asks to scrape a web page, crawl a site, search the web, extract structured data from URLs, or run deep web research on a topic.

Provider-agnostic web infrastructure: DNS architecture, SSL/TLS certificate lifecycle, CDN and edge optimization, backup and disaster recovery, domain lifecycle. [EXPLICIT] Cross-cuts Firebase/Vercel/Hostinger. Trigger: 'dns', 'ssl', 'tls', 'cdn', 'backup', 'disaster recovery', 'rto', 'rpo', 'domain'.

Build and deploy on Vercel: Edge and Serverless Functions, Vercel Postgres/Neon, KV, Blob storage, environment secrets, Incremental Static Regeneration, and deploy via CLI. [EXPLICIT] One of the three target platforms (Firebase + Vercel + Hostinger). Trigger: 'vercel', 'edge function', 'vercel deploy', 'vercel postgres', 'ISR', 'next on vercel'.

UX writing and document accessibility standards for technical deliverables. Use when the user asks to 'improve readability', 'fix information hierarchy', 'reduce cognitive load', 'write microcopy', 'check readability score', or mentions 'UX writing', 'scanability', 'Flesch-Kincaid', 'escritura UX', 'legibilidad', 'cognitive load'. [EXPLICIT]

Performs structured trade-off analysis using weighted scoring matrices, decision matrices, and ATAM (Architecture Tradeoff Analysis Method) to make defensible architectural and technology decisions. [EXPLICIT] Trigger: 'trade-off', 'decision matrix', 'ATAM', 'weighted scoring', 'pros and cons'

This skill should be used when the user asks to 'harden a toolkit skill', 'check a skill against the Definition of Done', 'audit packet completeness', 'validate a skill against the katas', 'bring a skill to gold-standard', or 'run the excellence gate' for the claude-native-toolkit. Enforces the packet DoD + kata best-practices + the toolkit brand + evidence honesty before a skill is declared done.

Use when designing or troubleshooting Claude Platform tool contracts: names, descriptions, input_schema, input_examples, strict, tool_choice, cache/privacy, versions, and routing boundaries.

This skill should be used for Claude Code permission rules, modes, settings, MCP permission syntax, and hooks boundaries. Do not use it as the authorization contract for Claude Platform memory, bash, text-editor, computer-use, server tools, or Messages API handlers.

Test strategy design — pyramid, automation, E2E, contract testing, shift-left, test data management, QA-as-a-service strategy, test factory design, PITT methodology, QA CoE design. Use when the user asks to 'design test strategy', 'build test automation', 'implement contract testing', 'manage test data', 'define quality gates', or mentions test pyramid, Pact, Playwright, Cypress, coverage targets, flaky tests, chaos engineering. [EXPLICIT]

This skill should be used when the user asks to be terse, compress output, reduce tokens, switch to a concise mode, or wants short high-signal answers without losing technical accuracy or evidence.

Designs software architectures using C4 diagrams, Architecture Decision Records (ADRs), quality attribute analysis, and trade-off evaluation. Covers system decomposition from context to code level. [EXPLICIT] Trigger: 'C4 diagram', 'architecture', 'ADR', 'quality attributes', 'system design'

This skill should be used when the user asks to prototype a UI, generate screens from text, design a web/mobile page, build a design system, edit existing Stitch screens, or iterate on a high-fidelity mockup with Google Stitch.

Influence/interest matrix. RACI matrix. Communication plan. Power/interest grid. Stakeholder registry. [EXPLICIT]