Developer Kit · v1.0 · Skill pack

A senior eng team,
installed.

79 production-grade skills, sub-agent specialists, and stack-specific knowledge — installs into Grok, Claude Code, Codex CLI, or any compatible agent with one CLI command. From idea to PR in a single conversation.

$49 $99 Launch · 50% off
One-time · Lifetime updates · Instant CLI install
/eng kit · v1.0 ● Live
Developer Kit

Full-stack engineering crew, installed.

79
Skills
3
Workflow cmds
10+
Sub-agents

What's in the box

  • Workflow commands (3) — /build · /scout · /plan
  • Specialist sub-agents (10+)
  • Stack & reference skills (50+)
  • Quality & ops skills (10+)
  • Developer workflow commands (7)
  • Plain Markdown · no SDK · no lock-in
Why this exists

Bare agent. Solo grind.
Skill-packed agent. Shipped feature.

Without scaffolding, every session is a fresh blank slate. Context drifts, conventions evaporate, output quality wobbles. Developer Kit is the part your agent was never going to figure out alone — your process.

Without the kit

Bare agent

  • Re-explain your codebase every session
  • Copy-paste the same prompts forever
  • Context drifts mid-feature; output quality wobbles
  • Inconsistent conventions across files
  • One model trying to do five jobs badly
With Developer Kit

Agent with a team

  • Project context structured by skill, every run
  • One command — /build handles the whole loop
  • Sub-agents stay in their lane — no drift
  • Repo-consistent output, linter-aligned
  • Specialists hand off to specialists
What's inside

A coordinated team,
not a pile of prompts.

Every piece is a folder of Markdown. Skills load by name, sub-agents are spawned by slash commands, reference skills inform the rest. Nothing magic, all readable.

01 · Slash commands

Workflow trio

Three commands cover most of the SDLC. /build scouts → plans → executes → tests → reviews end-to-end. /scout answers "where is X?". /plan drafts phased plans into ./plans.

  • /build
  • /scout
  • /plan
  • /ship
  • /journal
02 · Sub-agents

Specialist personas

Each agent owns one job with a sharper prompt than your default model. backend-developer writes the API. code-reviewer catches what you missed. tester generates & runs the tests.

  • backend-developer
  • frontend-developer
  • code-reviewer
  • tester
  • debugger
03 · Stack & ops

Reference skills

Deep-knowledge skills the agent loads when it sees the tech. Shopify checkout extensibility, three.js shaders, TanStack Query patterns, MCP servers — your agent suddenly knows them all.

  • shopify
  • threejs
  • tanstack
  • remotion
  • mcp-builder
A real session

From idea to PR
in a single conversation.

Real CLI install + a real /build session. The skill scouts the repo, drafts a plan, then implements it end-to-end. No prompt-engineering required.

~/checkout-app — claude ● Developer Kit · v1.0
In use
/build running
/scout
/plan
/ship
Agents
scout
planner
backend-developer
code-reviewer
tester
+ 5 more
Skills loaded
payment-integration
better-auth
databases
$ hypingai install developer
✓ Installed 79 skills into ~/.claude/skills/ · restart Claude Code

claude › /build add Stripe subscriptions to the checkout flow

grokscouting repo · 47 files · existing checkout in /api/checkout.ts
grokspawning scout · planner · backend-developer

Proposed plan · 6 steps
1. Add Subscription model + migration
2. Wire /api/webhooks/stripe with signature verification
3. Create /api/billing/portal for self-service
4. Add useSubscription() hook for client state
5. Lock paid routes behind requireSubscription()
6. Backfill existing customers (idempotent)
awaiting approval to implement · est. 4 file changes, 1 migration
How it compares

vs. bare agents &
generic prompt collections.

CapabilityBare agentGeneric promptsDeveloper Kit
Production-grade skillsLimited79 skills
Coordinated sub-agents10+ specialists
Repo-aware workflow/build · /scout · /plan
Code review & QA built inAd-hoc/build self-reviews
Multi-agent compatibleN/AMostlyGrok, Claude Code, Codex CLI
Plain Markdown — no SDKN/AVariesYes — readable
Lifetime updatesN/ARareForever
Get the kit

One payment.
Lifetime updates.

No subscription. No surprise renewals. Pay once, install on every machine you own — including future updates.

Everything in the box

  • 79 production-grade skills
  • Workflow trio: /build, /scout, /plan
  • 10+ specialist sub-agents
  • Stack skills (Shopify, three.js, TanStack…)
  • Developer workflow skills
  • One-line CLI install (curl)
  • Manual .zip fallback (any OS)
  • Works with Grok web, Claude Code, Codex CLI
  • Account-gated downloads
  • Lifetime free updates
  • Plain Markdown — no SDK or lock-in
Developer Kit
$49
one-time · 79 skills · was $99
★ Lifetime access
Get the kit →
All sales final. Digital download — once delivered, refunds are not available. Read the refund policy.
InstantCLI install
StripeSecure checkout
FAQ

Quick answers.

What do I get after I pay?

Immediate access to your account dashboard with a Download button (a .zip of skill folders), plus access to the hypingai CLI which installs everything for you with one command.

Which AI agents does it work with?

Built for Grok, Claude Code, and Codex CLI — the CLI installs straight into ~/.claude/skills/. Skills also work on Grok (web) via the Skills upload, and on Codex CLI & any Claude-compatible agent. Skills are plain Markdown folders.

Will it conflict with skills I already have?

Skills with the same folder name will be overwritten by the kit version. We recommend forking heavily-customised skills to a different folder name first. The CLI never touches anything outside the skills directory.

How "lifetime" is lifetime?

One payment, every future version, forever. Re-run hypingai install <kit> any time and you get the latest. No subscription, no expiry.

Can I use it on multiple machines?

Yes — personal-use licence covers every device you own. The CLI verifies ownership against your account, so you just sign in on each machine and run install.

What's the refund policy?

All sales final — digital downloads, delivered immediately. Read the refund policy for the exceptions we honour (double-charges, undelivered downloads, defective files).

Ready to ship?

Stop wrestling alone.
Start shipping with a team.

$49, one-time. Lifetime updates. CLI install in 30 seconds.

Lifetime access One-line CLI install Multi-agent compatible
Developer Kit — $49 ★ Lifetime access · one-time · 79 skills
Get the kit →