Three axes, not a bigger team.
The roles. Backend, frontend, security, AI/ML, data, fintech, healthcare and the rest. Who does the work.
The disciplines. TDD, verification, debugging, review, plan-execution. How the work is done, every time.
The platforms. AWS, GCP, Azure, Cloudflare, Vercel, Supabase, Firebase, Stripe, Salesforce, Anthropic, OpenAI, Expo, Observability. What stack the team speaks.
Specialists, protocols, and Stack Packs are orthogonal. v4 ships all three in one install — you don't pick which to include. The team doesn't change shape when the platform changes; only the overlay rotates. Detection is automatic — the trigger phrases on each Stack's SKILL.md catch the platform from your prompt.
Salesforce v4.0.0
The 2025–2026 Salesforce reset, codified.
The deepest pack in the catalog. Apex Cursors, LWC TypeScript types, Data 360, Agentforce, Salesforce-Hosted MCP Servers, ECA migration (May 11, 2026), MFA mandate (June–August 2026). 11 role overlays from system-architect through fintech-architect, currency-stamped to each major release.
Open the Salesforce packAWS v4.0.0
EC2, Lambda, ECS, EKS, S3, RDS, Aurora, Bedrock, IAM, KMS — and the rest.
Full AWS coverage every role on your team needs: SnapStart Lambda patterns, EKS Auto Mode, Karpenter v1, Aurora DSQL, S3 Express One Zone, EventBridge Pipes, Bedrock + AgentCore, IAM Identity Center, Route 53 Profiles. 9 role overlays plus per-product canonical pages.
Open the AWS packGCP v4.0.0
Vertex AI, Cloud Run, Pub/Sub, BigQuery, Firestore, Spanner, GKE.
Vertex AI Agent Builder, Cloud Run jobs, Spanner, AlloyDB, BigQuery + BigLake + Dataform, Pub/Sub, GKE Autopilot, Anthos, Gemini in production. 8 role overlays.
Open the GCP packAzure v4.0.0
AI Foundry, Container Apps, Cosmos DB, Entra ID, Functions, AKS.
Azure AI Foundry agents, Container Apps + Functions, Cosmos DB, Azure SQL, Entra ID + External ID, AKS, Defender for Cloud, Microsoft Fabric, Bicep + azd. 9 role overlays including healthcare-architect.
Open the Azure packCloudflare v4.0.0
Workers, Durable Objects, D1, R2, KV, Queues, Workflows, AI Gateway.
Workers Static Assets, Durable Objects + RPC, D1 + Hyperdrive, R2, Queues, Workflows, Smart Placement, Browser Rendering, Vectorize + Workers AI, Zero Trust Access. 6 role overlays.
Open the Cloudflare packVercel v4.0.0
Next.js, Fluid Compute, AI SDK, AI Gateway, Vercel Functions, Cache.
Next.js App Router with Cache Components + PPR, ISR, Server Actions, Vercel Functions on Fluid Compute, AI SDK + AI Gateway, Vercel Sandbox, Vercel Agent + v0, Image Optimization. 5 role overlays.
Open the Vercel packSupabase v4.0.0
Postgres, Auth, RLS, Realtime, Storage, Edge Functions, pgvector.
Postgres + Supavisor pooling, Row-Level Security, Auth (incl. SSR), Realtime, Storage, Edge Functions, pgvector + pg_cron + pg_net + pg_graphql, Foreign Data Wrappers, branching + migrations. 6 role overlays.
Open the Supabase packFirebase v4.0.0
Firestore, Auth, Functions, App Hosting, Genkit, FCM, Crashlytics.
Firestore + Realtime DB, Firebase Auth + Identity Platform, Cloud Functions, App Hosting + Hosting, Firebase AI Logic, Genkit, Firebase Studio, Data Connect, Crashlytics + Performance Monitoring. 5 role overlays.
Open the Firebase packStripe v4.0.0
Payment Intents, Setup Intents, Billing, Connect, Treasury, Issuing, Tax.
Payment Element + Optimized Checkout Suite, SCA / 3DS2, Idempotency, Webhooks, Stripe Billing (incl. Meter API), Connect + Capital + Treasury + Issuing, Stripe Tax, Financial Connections, Radar, Stripe Identity, Tap to Pay. 5 role overlays.
Open the Stripe packAnthropic Claude v4.0.0
Claude API, Agent SDK, Skills, Sub-Agents, MCP, Memory, Computer Use.
Claude API + Workbench Console, Claude Code, Claude Agent SDK, Skills + Sub-Agents, MCP, Memory, Tool Use, Computer Use, Extended Thinking, Prompt Caching, Bedrock + Vertex AI providers, Citations, Batches, Files, PDF Input, Vision. 4 role overlays.
Open the Anthropic Claude packOpenAI v4.0.0
GPT-5, o-series, Responses API, Agents SDK, Realtime API, Codex CLI.
GPT-5 + GPT-4.1 + o-series reasoning, Responses API, Agents Platform + Agents SDK, Realtime API + Realtime Agents, Built-in Tools, Function Calling, Structured Outputs, Codex + Codex CLI, Eval Platform, Distillation, Batch, Files, Moderation. 4 role overlays.
Open the OpenAI packExpo v4.0.0
EAS Build / Update / Submit / Hosting / Workflows, Expo Router, SDK.
Expo SDK + Expo Modules, Expo Router + API Routes, EAS Build / Update / Submit / Hosting / Workflows / CLI, Continuous Native Generation, Custom Dev Clients, Hermes, New Architecture, Metro Bundler. 4 role overlays.
Open the Expo packObservability v4.0.0
OpenTelemetry, Datadog, Grafana, Sentry, New Relic, Honeycomb, Splunk, Dynatrace.
Multi-vendor observability surface — OpenTelemetry (Collector, GenAI, Semantic Conventions), Datadog (APM, RUM, ASM, Logs, LLM Observability), Grafana (Cloud, Loki, Mimir, Tempo, Pyroscope, Alloy, Beyla), Sentry, New Relic, Honeycomb, Splunk, Dynatrace, k6, eBPF instrumentation. 4 role overlays.
Open the Observability packRoadmap — next packs on the bench.
Same pattern as the live ones — slim trigger pointer plus per-role overlays for whichever roles the stack meaningfully changes. Adding a new pack adds a folder, not a roster slot. Priority is shaped by community demand.
Warehouse architecture, Native Apps, Cortex.
Lakehouse, Mosaic AI, Delta Live Tables.
Storefront API, Hydrogen, app development.
Integration patterns, BTP.
Now Platform, Flow Designer, integration patterns.
Author a Stack Pack.
Want a pack prioritized? Open a request on GitHub or contribute a draft via the authoring conventions in STACKS.md.
Stacks live in stacks/<vendor>/ as a slim SKILL.md trigger pointer plus
per-role overlays. Every page carries last_verified_on,
drift_risk, and authoritative_url frontmatter —
when a page is older than its drift threshold, /etyb either discloses the staleness or fetches the
authoritative URL for high-stakes claims.