new·The score now tells you which way it movedA brain's exam only ever grows: its own material writes questions, and so does every question a real caller asked and did not get answered. The score is a percentage over that growing set, so a brain that learned more could post a smaller number — and this week three did. One of them answered two MORE questions than the week before and showed eighteen points less. Printed as a single percentage, that reads as decline to a reader and as punishment to anyone who contributes material.all news →
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Electron

Answer questions about Electron as documented today: the main and renderer processes and what may run where, context isolation and the security checklist, IPC patterns, native APIs and system integration, packaging and code signing, auto-update, and every module in the API with its methods, events and options.

4,273 notes across 3 brains · updated 2026-08-14 · trained 98%

since last sitting: +97 newly passed — this brain is learning · the verified changelog →

use this brain
# sign in to get a token
$ claude mcp add --transport http mozg \
https://mozg.sh/mcp --header "Authorization: Bearer …"
> use mozg/electron — …
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Ask it things like

answers 97/100 on its latest exam
What is contextBridge and what does it do?Context Isolation & Security✓
What is context isolation and when was it enabled by default in Electron?Context Isolation & Security✓
What are the two main types of processes Electron applications control, and what is the primary responsibility of each?Core Architecture✓
I want to call a method on the main process from my renderer and wait for the result. Which ipcRenderer method should I use and what must I set up on the main process?IPC Patterns✓
What is the autoUpdater module and what does it require?Auto-Update✓
How can I safely wrap ipcRenderer.send() and expose it via contextBridge?Context Isolation & Security✓
How can I validate the sender of an IPC message in the main process?IPC Patterns✓
Describe the security warning associated with ipcRenderer.on() and how to safely expose it over contextBridge.IPC Patterns✓

What is inside

asking this brain searches all 2
Electron · APIAnswer questions about the Electron API exactly as specified: every main-process and renderer module, its methods, events, properties and platform differences.2357 notes80%Electron · TutorialAnswer questions about building an Electron app: process model and context isolation, IPC, the security checklist and why each item exists, packaging, code signing, distribution and auto-update, performance and native modules.1011 notes90%

What it can answer

100 coverage checks
98%
Answers 97 of the exam's 100 questionsIt answers 97 questions, 97 more than last time, out of an exam that grew by 100.Nothing it used to answer has stopped working.
✓Context Isolation & Security10 / 10
▲Module: Clipboard9 / 10
✓Module: Session9 / 9
✓Notification & Device Access9 / 9
✓WebContents & Rendering9 / 9
▲Auto-Update8 / 9
✓App Lifecycle & Windows6 / 6
✓Module: NativeImage6 / 6
✓Native APIs & System Integration6 / 6
✓Packaging & Code Signing6 / 6
✓Security Checklist6 / 6
▲IPC Patterns5 / 6
✓Module: SafeStorage4 / 4
✓Core Architecture3 / 3
✓Module: SharedTexture1 / 1
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Attacks survived

re-run weekly · 2026-08-11
✓gate-battery12/12 known hostile payloads caught by the ingest gate
✓injection-corpusevery active note scanned — no steering language
✓secret-corpusevery active note scanned — no keys or credentials

heuristic scans against known attack classes — measured and dated, not a promise of unpoisonability

Inside

  • BluetoothDevice object structure · api
  • Session instance events: file-system-access-restricted · notifications & device access
  • session.defaultSession property · session & cookie management
  • Session instance events: hid-device-added, hid-device-removed, hid-device-revoked · notifications & device access
  • session.fromPath() method signature and behavior · session & cookie management
  • Session instance events: extension-loaded, extension-unloaded, extension-ready · notifications & device access
  • Session instance events: spellcheck-dictionary events · notifications & device access
  • Session instance events: preconnect · native apis & system integration
  • What is a Session · session & cookie management
  • Session instance events: select-hid-device · notifications & device access
  • session.fromPartition() method signature and behavior · session & cookie management
  • Example: Use bypassCustomProtocolHandlers with ses.fetch() · native apis & system integration
  • Session instance events: will-download · notifications & device access
  • Session instance events: select-serial-port · notifications & device access

Licence

CC BY-NC-SA 4.0

Use it, copy it, build on it, with credit. Selling it is not allowed.