Updates

Changelog

25 May 2026

Lesson 3.1 (CLAUDE.md): corrected the @ path import syntax — there is no @import keyword, the directive is @ followed by a path. Imports load eagerly, so they're a source-organisation tool, not a context-reduction tool
Lesson 3.1: added a CLAUDE.local.md subsection covering loading order, gitignore convention, and intended use
Lesson 2.5 (Built-in Tools): corrected the Edit non-unique-match recovery — widen old_string with surrounding context, or use replace_all: true; Read + Write is the last-resort fallback, not the standard response
Drill question on bloated CLAUDE.md (#105): correct answer is now path-scoped .claude/rules/ files, not @ imports (which don't reduce per-session context)
Drill stem now shows the canonical question ID, so reports can pinpoint the exact question
Drill summary now shows your Again/Hard/Good/Easy self-rating distribution alongside accuracy
Mock exam now guarantees at least 3 questions per domain, with the remaining 13 distributed by weight — no more single-question domains wiping out big point chunks
Feedback widget no longer appears in print previews, doesn't show during a mock exam (less chance of stray taps on mobile), and steps out of the way of footer links
Question 3-5-003 (team-shared custom commands): tightened to explicitly ask about the slash-command format, with a clearer skills-vs-commands distinction in distractor D
Three of the most length-biased questions trimmed so the correct option isn't visibly longer than its distractors

Mark Complete button restored to the lesson metadata row (top-right next to the Domain badges) in addition to the footer placement, with a useStorage fix so both buttons stay in sync

Per-URL audit of 24 lesson and question files to repair docs.anthropic.com/en/docs/agents/* and /build-with-claude/* link rot
Lesson 2.5: Grep → Glob → Grep sequence now covers indirect coverage via wrapper functions; practice-question option C narrowed to sibling-test matching
MCP scope question (q-2-3-005) rewritten — descriptions alone can't disambiguate near-identical Postgres tools; rename + scoped instruction is the fix
Validation-error question (q-2-4-003) rewritten to the four-category model (transient / validation / business / permission) matching lesson 2.2

Drill mode now shuffles answer options so the correct answer is no longer biased toward position B
Mark Complete button moved to the bottom of each lesson, beside the Next Lesson link
Hover tooltips added to the Questions Seen, Mastered, and Due Today stats on the progress page
Drill progress is now resilient to drilling in multiple tabs at once
Lesson 2.3 (MCP Client Integration): Coordinator tool renamed from Task to Agent
Lesson 4.4 (Few-Shot Examples): false-positive example now renders as a proper code block
Lesson 4.5 (Prompt Optimisation): corrected the Batch API SLA submission window

Mock exam scoring fixed — answering all questions correctly now properly scores 1000/1000
Question bank expanded from 165 to 239 practice questions across all 10 exam scenarios