mag_stacker — Project Skill Library Router#

This repo runs a trimmed surface instead of the full ECC bundle. Sorted by evidence
from the codebase (see /ecc:agent-sort, which produced this).

DAILY = on-stack, worth loading by default for this project.
LIBRARY = kept reachable via search; reach for it explicitly when a task needs it.
LIBRARY ≠ deleted, and this router is advisory — the only hard load-suppression is
skillOverrides in .claude/settings.local.json (currently just actionbook/aes-gcm off).

Stack (source of truth)#

TypeScript 5 · Next.js 16 (App Router, React Compiler) · React 19 · Bun · Biome (not
ESLint/Prettier) · Tailwind v4 · Motion (design-system animation). Shipped backend:
Postgres + Drizzle (pg Pool), Docker, Better Auth (email+password, owner-scoped inventory,
per-item grant sharing), Testcontainers integration/E2E. Planned: Shadcn; org-plugin
sharing is under evaluation (see the sharing-architecture-org-plugin memory), not shipped.

The former .cs .NET snapshot has been removed. C#/.NET tooling is LIBRARY, never DAILY.

DAILY — load by default#

Area	Skills / agents	Why
Next/React	`ecc:frontend-patterns`, `ecc:react-patterns`, `ecc:react-performance`, `ecc:nextjs-turbopack`, `frontend-design`	`next.config.ts`, React 19, app router
Animation	`ecc:motion-foundations`, `ecc:motion-patterns`, `ecc:motion-ui`	`motion` dep wired into the design system (`globals.css`, `theme-provider`, `theme-toggle`, `toast`); memory prefers Motion
Docs lookup	`ecc:docs-lookup` / `documentation-lookup` (Context7)	Next 16 / Tailwind 4 / Drizzle are post-cutoff; AGENTS.md says read the docs
Runtime	`ecc:bun-runtime`	`bun.lock`
Backend / DB	`ecc:backend-patterns`, `ecc:postgres-patterns`, `ecc:database-migrations`	Drizzle + pg Pool live in `src/db` + `src/domain`; versioned migrations
Auth (non-ECC)	`better-auth-best-practices`, `better-auth-security-best-practices`, `email-and-password-best-practices`	Better Auth email+password is shipped auth; used across `auth.ts`, `proxy.ts`, `lib/auth-client.ts`, `src/db/schema.ts`, e2e fixtures
Security	`security-review`, `ecc:security-reviewer`	auth, ownership, per-item sharing, sensitive serials
Testing	`tdd-workflow` / `ecc:tdd-guide`, `e2e-testing` / `ecc:e2e-runner`, `testcontainers` (Testcontainers-based, per AGENTS.md)	global TDD + 80% rule; Playwright + Testcontainers installed
Review	`code-review` / `ecc:code-review`, agents: `ecc:react-reviewer`, `ecc:typescript-reviewer`, `ecc:database-reviewer`, `ecc:security-reviewer`, `ecc:react-build-resolver`, `ecc:build-error-resolver`	review-after-writing rule; on-stack reviewers
Workflow	`ecc:coding-standards`, `ecc:git-workflow`, `frontend-a11y` / `ecc:accessibility`	coding-style, signed-commit workflow, a11y rule (`next-themes` light/dark)
Deploy	`ecc:docker-patterns`	`Dockerfile` + `docker-compose.yml` shipped

Non-ECC project skills: the better-auth-* / email-and-password-* skills above (and
the two auth extras below) come from better-auth/skills via skills-lock.json, not the ECC
bundle. Everything else is ECC.

LIBRARY — searchable, not loaded by default (trigger keywords)#

Auth extras (Better Auth) → two-factor-authentication-best-practices (2FA not wired in auth.ts), organization-best-practices (org plugin under evaluation, not shipped), create-auth-skill (meta: authoring new auth skills)
Other languages → go, rust, python, java, kotlin, swift, php, cpp, csharp/dotnet, dart/flutter, fsharp, perl, vue, angular (reviewers, patterns, build-resolvers, testing)
Other web frameworks → django, fastapi, laravel, springboot, quarkus, nestjs, nuxt
Domain verticals → healthcare, finance/billing, logistics, crypto/defi/trading, scientific-*, energy, customs/trade
Homelab network → vlan, pihole-dns, wireguard, network-readiness (host provisioning, not app dev)
Content / marketing / writing → article-writing, brand-voice, content-engine, crosspost, ghost-, investor-, marketing, seo
Research → deep-research, exa-search, firecrawl-*, active-research
Heavy orchestration → gan-, orch-, multi-, council, team-

Hook caveat#

Do not wire ESLint/Prettier/pnpm hooks — this repo is Biome + Bun. Any format/lint/type
hooks must target bun biome check, bun biome format, bun tsc --noEmit. The pre-commit
gate is just ci-check (see AGENTS.md).