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ZacharyZhang-NY e74dafcd36 Silence render-disposed spam, unbreak bundled skills, drop board wake
Three independently ugly bugs that all fed the same log flood:

* Electron's `WebFrameMain.send` writes every "Render frame was disposed"
  to stderr via `console.error`. When the worker fans a second
  agent-event past a reloading renderer, we produced thousands of
  identical lines and stalled the main loop on stderr I/O. Added a
  `mainFrame.detached` guard so the send is short-circuited before
  Electron's own catch block fires, and installed a targeted filter in
  `suppress-warnings.ts` (now actually imported from the entry point)
  so the specific `console.error("Error sending from webFrameMain:"…)`
  noise never reaches the terminal. Any other payload still surfaces.

* `dispatchAgentMessage` accepted the human-reader sentinel as a wake
  target when an agent replied to `__board__` — `wakeAgentIfPossible`
  then called `db.getAgent("__board__")`, threw, and the dispatcher
  kept repeating on every send. Strip `HUMAN_SENDER_ID` at
  `resolveMessageWakeTargets`, and keep a defense-in-depth guard in the
  heartbeat so a stray caller (future automation fan-out) cannot
  reintroduce the crash.

* Pi's skills loader rejects any SKILL.md whose frontmatter `name`
  diverges from its parent directory. The four bundled `my-writing-style`
  copies declared `name: writing-style-skill`, so every install emitted
  a warning and dropped the skill. They also lived as orphan gitlinks
  (mode 160000 without .gitmodules), and the global `*.md` gitignore
  hid every other SKILL.md from version control. Fixed the frontmatter
  to match the dir, converted the dangling submodules to plain trees,
  and allowlisted `builtin-skills/**/*.md` so a fresh clone carries the
  catalogue instead of silently losing it.
2026-04-20 08:13:48 -04:00

3.0 KiB

title, impact, impactDescription, tags
title impact impactDescription tags
Defer Framework and Database Decisions MEDIUM-HIGH preserves optionality, reduces early commitment risk bound, deferral, decisions, optionality

Defer Framework and Database Decisions

A good architecture allows major decisions about frameworks, databases, and delivery mechanisms to be deferred until the last responsible moment. The longer you wait, the more information you have.

Incorrect (early commitment to specifics):

// Day 1: "Let's use Prisma with PostgreSQL and Next.js"

// domain/Order.ts - Coupled to Prisma from the start
import { PrismaClient } from '@prisma/client'

const prisma = new PrismaClient()

export async function createOrder(data: OrderInput) {
  // Business logic intertwined with Prisma
  const order = await prisma.order.create({
    data: {
      items: {
        create: data.items.map(item => ({
          productId: item.productId,
          quantity: item.quantity,
          price: item.price
        }))
      },
      total: data.items.reduce((sum, i) => sum + i.price * i.quantity, 0)
    },
    include: { items: true }
  })

  return order
}

// 6 months later: "PostgreSQL doesn't scale for our read patterns,
// we need DynamoDB" - Massive rewrite required

Correct (defer database decision):

// Day 1: Focus on business rules, defer database choice

// domain/Order.ts - Pure business logic
export class Order {
  private items: OrderItem[] = []

  addItem(product: Product, quantity: number): void {
    if (quantity <= 0) throw new InvalidQuantityError()
    this.items.push(new OrderItem(product, quantity))
  }

  calculateTotal(): Money {
    return this.items.reduce(
      (sum, item) => sum.add(item.lineTotal()),
      Money.zero()
    )
  }
}

// application/ports/OrderRepository.ts - Interface only
export interface OrderRepository {
  save(order: Order): Promise<void>
  findById(id: OrderId): Promise<Order | null>
}

// For now: Simple in-memory implementation for testing
// infrastructure/InMemoryOrderRepository.ts
export class InMemoryOrderRepository implements OrderRepository {
  private orders = new Map<string, Order>()

  async save(order: Order): Promise<void> {
    this.orders.set(order.id.value, order)
  }
}

// Later, when you know more: Add real database
// infrastructure/PrismaOrderRepository.ts
// OR
// infrastructure/DynamoOrderRepository.ts
// OR
// infrastructure/MongoOrderRepository.ts

// The domain never changes regardless of database choice

Decisions worth deferring:

  • Database vendor (PostgreSQL vs MongoDB vs DynamoDB)
  • ORM choice (Prisma vs TypeORM vs raw SQL)
  • Web framework (Express vs Fastify vs Hono)
  • Message queue (RabbitMQ vs Kafka vs SQS)
  • Cache provider (Redis vs Memcached)

Benefits:

  • Learn requirements before committing
  • Prototype faster with simple implementations
  • Switch vendors without domain rewrites

Reference: Clean Architecture - The Database is a Detail