rstack

Six specialist modes for GitHub Copilot. Plan → Review → Ship → Verify.

┌─────────────────┐  ┌─────────────────┐  ┌─────────────────┐
│ /plan-ceo-review│  │ /plan-eng-review│  │    /review      │
│   🎯 Founder    │  │   🏗️  Engineer   │  │  🔍 Reviewer    │
│                 │  │                 │  │                 │
│ "Is this the    │  │ Architecture,   │  │ Security, races,│
│  right product?"│  │ edge cases,     │  │ trust boundaries│
│                 │  │ test plan       │  │ (multi-stack)   │
└─────────────────┘  └─────────────────┘  └─────────────────┘
┌─────────────────┐  ┌─────────────────┐  ┌─────────────────┐
│     /ship       │  │    /browse      │  │     /retro      │
│  🚀 Shipper     │  │   👁️  QA        │  │  📊 Analyst     │
│                 │  │                 │  │                 │
│ Test, version,  │  │ Headless Chrome │  │ Commits, velocity│
│ push, open PR   │  │ click, screenshot│ │ streaks, trends │
│ (auto-detects)  │  │ verify, 40+ cmds│  │                 │
└─────────────────┘  └─────────────────┘  └─────────────────┘

Quick Start

Copilot CLI

git clone https://github.com/ragmha/rstack.git ~/.copilot/skills/rstack
cd ~/.copilot/skills/rstack && ./setup

VS Code

git clone https://github.com/ragmha/rstack.git .github/skills/rstack
rm -rf .github/skills/rstack/.git
cd .github/skills/rstack && ./setup
cp .github/skills/rstack/copilot-instructions.md .github/copilot-instructions.md

Verify

Type /plan-ceo-review in Copilot. If skills don't appear, run ./setup again.

Requires: Git, gh CLI. Bun only for /browse.

Works with: Copilot CLI ✅ · VS Code agent mode ✅ · Coding agent ⚠️ (no interactive questions)

Skills

/plan-ceo-review — Shape the product

You:     "I want to add photo upload for sellers"

Copilot: "Photo upload is not the feature. The real job is helping sellers
          create listings that sell. 10-star version: auto-identify the
          product, pull specs, draft the listing, suggest the best image."

Three modes: Expand · Hold · Reduce

/plan-eng-review — Lock in architecture

You:     "Eng review this plan"

Copilot: ┌─────────┐    ┌──────────┐    ┌───────────┐
          │ Upload  │───▶│ Classify │───▶│ Enrich    │
          └─────────┘    └──────────┘    └───────────┘

          "What if classification is low-confidence?
           Missing: orphan cleanup for failed uploads.
           Test plan: 12 scenarios."

Four sections: Architecture → Code Quality → Tests → Performance

/review — Catch what CI misses

You:     "/review"

Copilot: Pre-Landing Review: 2 issues (1 critical)

         CRITICAL:
         ⚠️  src/api.py:42 — SQL injection via string interpolation
            Fix: Use parameterized query

         📝 src/utils.ts:18 — Prototype pollution via Object.assign

Checks: Python · TypeScript · Go · Java · Ruby · Rust

/ship — One command to land

You:     "/ship"

Copilot: ✓ Detected pyproject.toml → pytest
         ✓ 47 tests passed
         ✓ Version: 1.4.2 → 1.4.3
         ✓ PR #42 opened

Auto-detects: npm · pytest · go test · cargo test · rspec · maven · make

/browse — Give Copilot eyes

You:     "/browse staging.myapp.com — test the signup flow"

Copilot: > goto /signup
         > fill @e2 "test@example.com"
         > click @e5 "Submit"
         > screenshot /tmp/signup.png
         ✅ Signup works. No console errors.

Persistent headless Chromium. 40+ commands. ~100ms per call.

/retro — Data, not vibes

You:     "/retro"

Copilot: Week of Mar 8: 32 commits, 2.1k LOC, 41% tests | Streak: 12d
         Ship of the week: Billing integration (650 LOC)
         To improve: test ratio dropped — add webhook tests

Saves JSON history for week-over-week trend comparison.

Supported Stacks

File	Tests	Review Checks
package.json	npm/yarn/bun test	Prototype pollution, ReDoS, innerHTML
pyproject.toml	pytest	Django raw SQL, pickle, async races
go.mod	go test ./...	Goroutine leaks, defer misuse, nil interfaces
Cargo.toml	cargo test	Unsafe blocks, unwrap in prod, Send/Sync
Gemfile	rspec/rake	html_safe, N+1, rescue StandardError
pom.xml	mvn test	Deserialization, JNDI, Spring injection

Troubleshooting

Problem	Fix
Skill not found	cd ~/.copilot/skills/rstack && ./setup
/browse binary missing	bun install && bun run build in rstack dir
Bun not installed	`curl -fsSL https://bun.sh/install
gh not installed	cli.github.com

Upgrade: cd ~/.copilot/skills/rstack && git pull && ./setup

Uninstall: rm -rf ~/.copilot/skills/rstack

License

MIT — Inspired by gstack by Garry Tan.