Main thread, frame time, and memory for SPAs. Measure, draw less, workers, OffscreenCanvas, hosted editors, typing, grids, streams, and audio.
Plugin spa-performance from marketplace leahycc-skills in LeahyCC/claude-skills. Commands read from the repo's manifest — 13 days ago.
spa-performanceUse when an SPA is slow because of the main thread, frame time, or memory: Web Workers, OffscreenCanvas, scheduler.yield, virtualized or windowed rendering, canvas and DOM editors, image swaps, flicker, blank frames, live updates, or a performance harness. Not React re-renders, bundles, or Server Co
OWASP API Security Top 10 (2023) and Web Top 10 (2025) with production Next.js App Router code: access control, authentication with MFA and password reset, input validation, rate limiting, security headers and CSRF, data exposure, supply chain, SSRF, file uploads, and AI tools on those APIs
1 skill
Everything drawn with text characters, for work or fun: diagrams, tables, bar charts, sparklines, banners, boxes, pictures, pixel sprites, kaomoji, game boards and mazes. Draws on a grid, hands the counting to 5 Node scripts, and checks alignment before showing.
1 skill
Code a cold reader can follow: no floating (magic) numbers or strings without a name or a unit-and-why note nearby, names that carry units and do not lie, small single-purpose functions, shallow nesting, honest comments, no dead code, and balanced ESLint tuning.
1 skill
Silent bugs that pass typecheck and happy-path tests: 200 HTML fallbacks, pre-await state commits, swallowed catches, module singletons, Web API footguns, fresh-clone gaps, and false-green tests.
1 skill
OWASP LLM Top 10 (2026) and Agentic Top 10 (2026) when a model can see untrusted content or act with real credentials. Trust boundaries, tools, memory, MCP, supply chain, output handling, and human approval.
1 skill
Version-aware Next.js App Router guidance: component boundaries, data, caching, routing, proxy, errors, metadata, assets and migration. Scoped source review in skills/nextjs-app-router/SOURCES.md.
1 skill
Reliable automation, in-depth debugging, and performance analysis in Chrome using Chrome DevTools and Puppeteer
8 skills · 1 MCP server
Perform AI code review on Git diffs — supports workspace changes, branch ranges, and single commits with concurrent per-file analysis, codebase search, and deep context-aware review.
2 commands
Transform Claude into an Azure expert. This plugin integrates the Azure MCP server and specialized Azure skills to move beyond generic advice. It enables Claude to perform real-world tasks: listing resources, validating deployments, diagnosing infrastructure issues, and optimizing costs across 50+ Azure services.
44 skills · 1 MCP server
Systems programming with Rust, Go, C, and C++ for performance-critical and low-level development
3 skills · 1 command · 4 agents
Agent skills for Qdrant vector search: scaling, performance optimization, search quality, monitoring, deployment, model migration, version upgrades, and SDK usage
33 skills
45 advanced engineering skills: agent designer, agent workflow designer, RAG architect, database designer + schema designer + SQL assistant, migration architect, observability designer, dependency auditor, changelog generator, API design reviewer, API test suite builder, CI/CD pipeline builder, MCP server builder, skill security auditor, skill tester, performance profiler, focused-fix, browser-automation, full-page-screenshot, git-worktree-manager, monorepo-navigator, codebase-onboarding, interview-system-designer, runbook-generator, spec-driven-workflow, secrets-vault-manager, env-secrets-manager, pr-review-expert, self-eval, tc-tracker, feature-flags-architect, kubernetes-operator, chaos-engineering, ship-gate, slo-architect (error-budget + multi-window burn-rate alerts per Google SRE Workbook), tech-debt-tracker, agent-regression-evals, coding-agent-rollout, commit-craft, agent-run-forensics and i18n-localization. Agent skill and plugin for Claude Code, Codex, Gemini CLI, Cursor, OpenClaw.
48 skills · hooks
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