k3-agentic-skills

Surfaces risks, blind spots, and opportunities the operator didn't ask about. Runs after plans are drafted but before execution. Use when reviewing implementation plans, launching features, or making architectural decisions.

Google Agent Development Kit (ADK) for Python — verified API patterns for building production-grade multi-agent systems. Covers Workflow graphs (ADK 2.0 Beta), LlmAgent, SequentialAgent, LoopAgent, CustomAgent (BaseAgent), MCP integration via McpToolset, FunctionTool, ToolContext state, session management, context compaction, callbacks (before/after agent/model/tool), human input via RequestInput, and the App wrapper. Use when: ADK agent, workflow graph, multi-agent, MCP toolset, HITL, context compaction, session state, agent pipeline.

Craft and launch a Gemini Deep Research session via a custom Gem. Use when: @dp, @deep-research, research sprint, investigate topic, market research, technical deep-dive.

Gemini Embedding 2 — Google's natively multimodal embedding model (GA April 2026). Maps text, images, video, audio, and PDFs into a unified 3072-dim vector space with MRL support (truncate to 128-3072). Use when: embeddings, semantic search, RAG, clustering, classification, multimodal retrieval, vector database, MRL truncation, cosine similarity, narrative memory, code retrieval, cross-modal search, agentic RAG.

Autonomous HestiaCP server management with AI agents. Two-brain Orchestrator+Sentinel architecture for VPS monitoring, troubleshooting, security hardening, PHP-FPM tuning, Exim mail forensics, and post-compromise detection. Use when: HestiaCP, VPS, server monitoring, DevOps agent, Linux admin, Nginx/Apache, PHP-FPM, Exim, Fail2Ban, ClamAV, SSL, backup.

You are a cognitive architect who understands that memory makes agents intelligent. You've built memory systems for agents handling millions of interactions. You know that the hard part isn't storing - it's retrieving the right memory at the right time.

Build secure, scalable authentication and authorization systems using industry-standard patterns and modern best practices.

When agent sessions generate millions of tokens of conversation history, compression becomes mandatory. The naive approach is aggressive compression to minimize tokens per request.

Language models exhibit predictable degradation patterns as context length increases. Understanding these patterns is essential for diagnosing failures and designing resilient systems.

Guide for implementing and maintaining context as a managed artifact alongside code, enabling consistent AI interactions and team alignment through structured project documentation.

Context optimization extends the effective capacity of limited context windows through strategic compression, masking, caching, and partitioning. The goal is not to magically increase context windows but to make better use of available capacity.

You're a context engineering specialist who has optimized LLM applications handling millions of conversations. You've seen systems hit token limits, suffer context rot, and lose critical information mid-dialogue.

Security-focused code review for PRs, commits, and diffs.

Use when facing 2+ independent tasks that can be worked on without shared state or sequential dependencies

Discover and search 18K+ MCP servers and AI agents across 6+ registries using Global Chat's cross-protocol directory and MCP server.

Version 2.35.0 | PRD to Production | Zero Human Intervention > Research-enhanced: OpenAI SDK, DeepMind, Anthropic, AWS Bedrock, Agent SDK, HN Production (2025)

Route tasks to specialized AI agents with anti-duplication, quality gates, and 30-minute heartbeat monitoring

Proven architectural patterns for building n8n workflows.

Use when debugging any bug. Enforces a 5-phase protocol where code edits are blocked until root cause is confirmed. Prevents premature fix attempts.

Agent governance skill for MCP tool calls — Cedar policy authoring, shadow-to-enforce rollout, and Ed25519 receipt verification.

Master Stripe payment processing integration for robust, PCI-compliant payment flows including checkout, subscriptions, webhooks, and refunds.

Use when executing implementation plans with independent tasks in the current session

FREE — Intelligent tool-call reliability wrapper. Monitors, retries, fixes, and learns from tool failures. Auto-recovers from truncated JSON, timeouts, rate limits, and mid-chain failures.

Git worktrees create isolated workspaces sharing the same repository, allowing work on multiple branches simultaneously without switching.

Master systematic debugging techniques, profiling tools, and root cause analysis to efficiently track down bugs across any codebase or technology stack. Use when investigating bugs, performance iss...

Corporate design system blueprint — Open Sans/Poppins typography, enterprise layouts. Strict K3 implementation guide for B2B/Admin dashboards in Next.js 15.

Editorial design system blueprint — Gelasio serif typography, modern editorial layouts, 8pt grid, WCAG 2.2 AA. Strict K3 implementation guide for magazine-style Next.js 15 apps.

Elegant design system blueprint — Google Sans (Outfit), minimal aesthetic. Strict K3 implementation guide for refined, light-weight UI in Next.js 15.

Glassmorphism design system blueprint — frosted glass effects, backdrop-blur, liquid depth. Strict K3 implementation guide for complex UI layering in Next.js 15 apps.

Luxury design system blueprint — dark surfaces, Oswald typography, bold expressive headings, 8pt grid. Strict K3 implementation guide for premium dark-mode Next.js 15 apps.

Premium design system blueprint (Apple-style) — Inter typography, clean modern aesthetic, 4pt spacing scale. Strict K3 implementation guide for polished SaaS Next.js 15 apps.

Specialized agent for architecting Firebase Data Connect layers. Use for "generating GraphQL schemas," "optimizing PostgreSQL/AlloyDB queries," and "configuring IAM-backed database connectors."

Firebase full-stack backend: App Hosting for Next.js SSR on Cloud Run, Auth SSR with HttpOnly cookies and proxy.ts, image optimization via Extensions, Firestore/Data Connect, billing protection. Use when: Firebase project, auth, hosting, functions, storage, security rules, App Hosting, Next.js 16 SSR.

Create distinctive, production-grade frontend interfaces with intentional aesthetics, high craft, and non-generic visual identity. Use when building or styling web UIs, components, pages, dashboard...

Use this skill when building applications with Gemini models, Gemini API, working with multimodal content (text, images, audio, video), implementing function calling, using structured outputs, or n...

Stage, commit, and push git changes with conventional commit messages. Use when user wants to commit and push changes, mentions pushing to remote, or asks to save and push their work. Also activate...

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate exte...

Master Next.js 14+ App Router with Server Components, streaming, parallel routes, and advanced data fetching. Use when building Next.js applications, implementing SSR/SSG, or optimizing React Serve...

Complete Odoo backup and restore strategy: database dumps, filestore backup, automated scheduling, cloud storage upload, and tested restore procedures.

Transforms user prompts into optimized prompts using frameworks (RTF, RISEN, Chain of Thought, RODES, Chain of Density, RACE, RISE, STAR, SOAP, CLEAR, GROW)