Master test: five scenarios from the core series

The questions

One question at a time. Pick an answer to see whether it’s right; your score shows at the end.

1. 01

   Question 1 of 5: Question 1: a manual skill

   Claude must never start it on its own.

   your-project/

   • folder .claude
     • folder skills
       • folder deploy
         • SKILL.md

   Your /deploy skill must run only when you type /deploy. What do you change?

   • AA. Add “only deploy when asked” to CLAUDE.md.
   • BB. Set disable-model-invocation: true in its frontmatter.
   • CC. Move it to ~/.claude/skills/.

   Show the answer

   The answer is B.

   It stops Claude from loading the skill on its own, so it runs only when you type /deploy. It also keeps the skill’s description out of Claude’s context.

   Reread Day 13: Skill arguments and files or the skills docs.

   Pick an answer to go on.

2. 02

   Question 2 of 5: Question 2: a hook that exits 1

   The usual failure code.

   In order:

   1. Claude

      Claude asks to edit .env

   2. Hook

      PreToolUse hook runs

   3. Shell

      Script exits 1

   Your PreToolUse hook rejects .env edits by exiting with code 1, with no JSON output. What happens?

   • AA. The edit goes ahead.
   • BB. The edit is blocked.
   • CC. Claude Code ends the session.

   Show the answer

   The answer is A.

   Exit 1 is a non-blocking error. Only exit 2 or a JSON deny decision blocks.

   Reread Day 14: Hooks that check the work or the hooks reference.

   Pick an answer to go on.

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3. 03

   Question 3 of 5: Question 3: a team MCP server

   Shared through git.

   In order:

   1. You

      You add the server

   2. You

      You commit and push

   3. You

      A teammate clones the repo

   How do you add an MCP server every teammate gets from git?

   • AA. claude mcp add with no scope flag.
   • BB. Paste it into each teammate’s ~/.claude.json.
   • CC. Add it with --scope project and commit .mcp.json.

   Show the answer

   The answer is C.

   With no scope flag, the server stays private to you. Project scope stores it in .mcp.json at the project root, ready to commit.

   Reread Day 17: MCP servers for your team or the MCP docs.

   Pick an answer to go on.

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4. 04

   Question 4 of 5: Question 4: a big search

   Without flooding your conversation.

   In Claude Code

   You type: › find every place that reads data/rates.json

   – What happens: Answering means opening many files.

   You need every place that reads data/rates.json, without file contents filling your conversation. What do you do?

   • AA. Hand it to a subagent.
   • BB. Run /compact, then search in the main conversation.
   • CC. Add the search to CLAUDE.md.

   Show the answer

   The answer is A.

   A subagent works in its own context window and only its result comes back.

   Reread Day 19: Delegate to subagents or the subagents docs.

   Pick an answer to go on.

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5. 05

   Question 5 of 5: Question 5: Claude in a CI job

   One prompt, then exit.

   In order:

   1. Shell

      CI step starts

   2. Claude

      Claude answers one prompt

   3. Shell

      The job continues

   A CI step needs Claude to answer one prompt and exit. Which command?

   • AA. claude "summarise the failing tests"
   • BB. claude -c "summarise the failing tests"
   • CC. claude -p "summarise the failing tests"

   Show the answer

   The answer is C.

   -p runs non-interactively and exits. Without it, claude "…" opens an interactive session, and -c continues your last one.

   Reread Day 22: Run Claude from a script or the CLI reference.

   Pick an answer to go on.

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