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4. Optional: Extensions · 1 of 4
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Orient
Route by trigger, then check the cost
Route four annoyances
Predict
Audit your setup for misrouted items
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Choose the Right Extension
Intermediate
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Six mechanisms, six triggers — most setups fail by picking the familiar one
Orient
Route by trigger, then check the cost
Route four annoyances
Predict
Audit your setup for misrouted items
Close
Practice
Related
Practice activities and scenarios are optional. Mark the lesson complete after reading, and return to practice whenever it helps.
Restoring your saved work…
07
Optional practice
🧠 Optional scenario practice
Q1
Claude occasionally skips running the linter after edits, despite a clear CLAUDE.md rule. What is the correct mechanism?
A
A more strongly worded CLAUDE.md rule
B
A PostToolUse hook matching Edit|Write, because the action must happen every time
C
A skill named /lint that Claude can invoke
D
An MCP server that exposes the linter
Q2
What is the primary reason to route an exploratory search through a subagent rather than doing it in the main conversation?
A
Subagents use a cheaper model in all cases
B
The subagent works in its own context window and returns only a summary, keeping file reads out of your main window
C
Subagents have broader permissions
D
Only subagents can use Grep and Glob
08
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Intermediate
Skills That Load When Needed
Advanced
Hooks and Guarantees
Intermediate
MCP Without the Sprawl
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