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.
2.4 KiB
2.4 KiB
title, impact, impactDescription, tags
| title | impact | impactDescription | tags |
|---|---|---|---|
| Separate Construction from Use | MEDIUM | enables testing and reduces coupling | class, construction, factories, separation |
Separate Construction from Use
The startup process of object construction is a separate concern from runtime logic. Applications should separate the main function (which builds objects) from the rest of the system (which uses them).
Incorrect (construction mixed with use):
public class OrderProcessor {
public void processOrder(Order order) {
// Construction buried in business logic
EmailService emailService = new SmtpEmailService(
"smtp.example.com", 587, "user", "password");
InventoryService inventory = new InventoryServiceImpl(
new PostgresConnection("localhost", 5432));
PaymentGateway gateway = new StripeGateway(API_KEY);
// Business logic
inventory.reserve(order.getItems());
gateway.charge(order.getPayment());
emailService.sendConfirmation(order);
}
}
Correct (construction separated from use):
// Main builds the object graph
public class Application {
public static void main(String[] args) {
EmailService emailService = new SmtpEmailService(
Config.get("smtp.host"), Config.getInt("smtp.port"));
InventoryService inventory = new InventoryServiceImpl(
new PostgresConnection(Config.get("db.url")));
PaymentGateway gateway = new StripeGateway(Config.get("stripe.key"));
OrderProcessor processor = new OrderProcessor(
emailService, inventory, gateway);
processor.start();
}
}
// Business class receives dependencies
public class OrderProcessor {
private final EmailService emailService;
private final InventoryService inventory;
private final PaymentGateway gateway;
public OrderProcessor(EmailService email, InventoryService inv,
PaymentGateway pay) {
this.emailService = email;
this.inventory = inv;
this.gateway = pay;
}
public void processOrder(Order order) {
inventory.reserve(order.getItems());
gateway.charge(order.getPayment());
emailService.sendConfirmation(order);
}
}
Alternative: Use Dependency Injection frameworks (Spring, Guice) to manage construction.
Reference: Clean Code, Chapter 11: Systems