agent-skills

agent-skills

Agent Skills for Claude Code and other skills.sh-compatible coding agents.

Skills

engineering-manager

A senior engineering-manager / principal-engineer persona for modern full-stack web apps. It owns architecture, holds the quality bar, and acts as the final reviewer before code ships — with deep, current (2026) command of the stack: Next.js 16 App Router, React 19, TypeScript, Tailwind CSS 4, Supabase (@supabase/ssr + RLS), Vitest, Playwright, and Vercel (Fluid Compute).

Use it to design a feature or system, make an architecture/tradeoff call, review or approve a change before merge, scope work, or get oriented in an unfamiliar codebase. It encodes the 2026 stack traps that stale knowledge gets wrong (opt-in caching, proxy.ts, Server Actions as public endpoints, RLS as the security boundary, Fluid Compute over Edge) and ships with a correctness-first review rubric.

fable-reasoning

Elite, stack-agnostic reasoning and coding discipline — a process layer that raises problem-solving quality on any task, in any language. It enforces hypothesis-driven thinking, evidence-before-belief, root-cause (not symptom) fixes, calibrated effort, and adversarial self-verification before anything is called "done."

Load it at the start of any non-trivial task — debugging, implementing a feature, refactoring, an architecture decision, code review, or a multi-step investigation. The main SKILL.md carries a 6-phase operating loop (understand → gather context → hypothesize → plan → execute → self-verify), an effort-calibration table, and an anti-pattern list; three reference files go deep on debugging, coding craft, and verification, loaded only when the task centers on that activity.

Install

With the skills CLI (no install needed):

# Add every skill in this repo to the current project
npx skills add darasoba/agent-skills

# Or install globally (user-level), available in every project
npx skills add darasoba/agent-skills --global

# List what's in this repo without installing
npx skills add darasoba/agent-skills --list

This works with Claude Code and any other agent the skills CLI supports.

Layout

skills/
├── engineering-manager/
│   ├── SKILL.md                       # persona, operating principles, stack traps, routing
│   └── references/
│       ├── nextjs-react.md            # Next 16 / React 19: boundaries, Server Actions, caching, perf
│       ├── supabase-vercel.md         # @supabase/ssr, RLS, key migration, Fluid Compute, env/cron
│       ├── testing-tailwind-zod.md    # Vitest pyramid, tz-deterministic testing, Tailwind 4, Zod 4
│       ├── codebase-navigation.md     # getting oriented in a Next.js + Supabase repo
│       └── review-rubric.md           # the ship-gate checklist
└── fable-reasoning/
    ├── SKILL.md                       # 6-phase reasoning loop, effort calibration, anti-patterns
    └── references/
        ├── debugging.md               # reproduction, bisection, hypothesis trees, heisenbugs
        ├── coding.md                  # reading order, idiom-matching, edge-case taxonomy, safe refactors
        └── verification.md            # evidence hierarchy, discriminating tests, adversarial self-review

License

MIT © Dara Sobaloju