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.
72 lines
2.1 KiB
Markdown
72 lines
2.1 KiB
Markdown
---
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title: Avoid Forcing Clients to Depend on Unused Code
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impact: HIGH
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impactDescription: reduces unnecessary recompilation and deployment
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tags: comp, common-reuse, dependencies, coupling
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---
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## Avoid Forcing Clients to Depend on Unused Code
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Classes used together should be in the same component. Classes not used together should be in separate components. Forcing a client to depend on things it doesn't use creates unnecessary coupling.
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**Incorrect (monolithic utility package):**
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```java
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// utils/src/main/java/com/app/utils/
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├── StringUtils.java
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├── DateUtils.java
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├── FileUtils.java
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├── HttpUtils.java
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├── CryptoUtils.java
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├── ImageUtils.java // Depends on ImageMagick
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└── PdfUtils.java // Depends on iText
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// pom.xml for utils module
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<dependencies>
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<dependency>imagemagick</dependency> <!-- 50MB -->
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<dependency>itext-pdf</dependency> <!-- 20MB -->
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<dependency>bouncycastle</dependency> <!-- 10MB -->
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</dependencies>
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// A service that only needs StringUtils
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// must now depend on all 80MB of transitive dependencies
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```
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**Correct (split by usage pattern):**
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```java
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// string-utils/
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├── StringUtils.java
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└── pom.xml // No heavy dependencies
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// date-utils/
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├── DateUtils.java
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└── pom.xml
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// image-processing/
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├── ImageUtils.java
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├── ImageResizer.java
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└── pom.xml // ImageMagick dependency only here
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// pdf-generation/
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├── PdfUtils.java
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├── PdfBuilder.java
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└── pom.xml // iText dependency only here
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// crypto/
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├── CryptoUtils.java
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├── HashingService.java
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└── pom.xml // BouncyCastle dependency only here
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// Services import only what they need
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// order-service depends on string-utils, date-utils (2MB)
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// report-service depends on string-utils, pdf-generation (22MB)
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```
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**Benefits:**
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- Clients only pull dependencies they actually use
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- Smaller deployment artifacts
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- Changes to image processing don't redeploy order service
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Reference: [Clean Architecture - Common Reuse Principle](https://www.oreilly.com/library/view/clean-architecture-a/9780134494272/ch13.xhtml)
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