* docs: sync to Claude Code v2.1.257
Audit against Claude Code v2.1.257 (repo baseline was v2.1.245, 12 releases
behind). Facts verified against the official docs and cross-checked against
the locally installed 2.1.257 binary.
Critical (P0):
- lesson-quiz L06 Q9 asked how many hook events exist, offering 16/25/31/40.
With the real answer now 33, no option was correct. Option C 31 -> 33;
answer letter unchanged.
- 03-skills taught SKILL.md `name`/`description` as required. Official docs
now state all frontmatter fields are optional and `name` defaults to the
directory name. Corrected in all five languages.
Hook events 31 -> 33 (PreModelSwitch/PostModelSwitch, v2.1.251) across 30
occurrences in 22 files, including three that read 25. Delta proved by
set-diff against the official event table: no phantom events. Both events
added to the 06-hooks tables with matcher, blocking behavior and 30s timeout,
plus detailed per-event sections.
CLI corrections verified against the binary:
- `claude plugin tag` takes a path, not a version
- `claude plugin init` / `validate` require their arguments
- `plugin init` scaffolds at ~/.claude/skills/<name>/, not project-local
- `--channels` entries must be tagged plugin:<name>@<marketplace>
- `--remote` is a deprecated alias for `--cloud`
- no `claude remote-control` subcommand exists, only the --remote-control flag
Also: CATALOG summary-table totals recomputed in all five languages (column 4
is a derived total, so the count change invalidated it); stale Opus 4.6/4.7
rosters aligned to canonical; self-assessment Advanced Features rescored 0-3
to stop a real gap being graded as mastery; 9 dangling quiz Review pointers
repaired; new features documented (--restricted, Fable 5.1,
experimental.cacheTtl, CLAUDE_CODE_SUBAGENT_MODEL_FORCE).
Deliberately out of scope: pre-existing translation staleness whose fix is
translation authorship rather than correction (ja/uk April-2026 root-doc
bodies, zh stubs, vi/README stub, translated CATALOG "New Features").
Claude-Session: https://claude.ai/code/session_01128xfEd8W7c2cMRw6N7uiF
* fix(hooks): complete the 31 → 33 hook-event propagation across all languages
The v2.1.257 sync bumped the hook-event count in the lesson and catalog
summaries but left 14 files still asserting 31, four of which the same
commit restamped 2.1.257. It also bumped the prose count in
claude_concepts_guide.md without adding the two rows, making that file
contradict itself where it had been internally consistent before.
Adds PreModelSwitch and PostModelSwitch (v2.1.251) everywhere an
exhaustive enumeration exists, and corrects the count wherever a list is
deliberately partial:
- README.md / INDEX.md in en, ja, zh, uk and vi/INDEX.md — count 31 → 33
and both events added to the lifecycle group
- resources.md in all five languages — count only; these lists end in
"and more" and are partial by design
- claude_concepts_guide.md — the two missing table rows
Also brings every hook-event table up to the 33 its own summary row
claims. The English CATALOG.md listed 29; the translated catalogs listed
25 and the ja/uk concept guides 27 and 28. Completing them required
translating six events that had never reached the mirrors: Setup,
UserPromptExpansion, PermissionDenied, PostToolBatch, MessageDisplay and
DirectoryAdded.
Summary-table arithmetic is untouched — those columns count example
scripts, not events.
Verified: no stale count survives outside CHANGELOG history, every
exhaustive enumeration lists exactly 33, and pre-commit passes 23/23.
Claude-Session: https://claude.ai/code/session_01UXmqJZNk1BR4uerJA85NiW
Internal accuracy pass against v2.1.220 — no missing upstream features, but broken example code, disagreeing counts, and metadata drift.
Functional fixes: pre-commit.sh now exits 2 so it actually blocks; dependency-check.sh reads file_path from stdin JSON instead of $1; database-mcp.json uses ${DATABASE_URL}; broken fences repaired; three command templates had invalid skill names.
Factual corrections: /fork and /subtask unswapped and /subtask added; /fewer-permission-prompts; permissions.defaultMode; dontAsk/auto unreversed; 31 hook events verified name-by-name; subagent depth 3; skill precedence enterprise > project > personal; /output-style removed not deprecated; permissionDecision gained defer.
Follow-up review fixed defects the pass left behind: zh/vi headers claiming 31 events above 25-name lists, a surviving hardcoded DB credential in the MCP README examples, an unbalanced fence swallowing a metadata footer, and non-canonical tool names. All four translated CATALOG summary tables were recounted so their arithmetic holds.
Full detail in CHANGELOG.md under v2.1.220-r2.
Luong NGUYEN