* 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
* docs: sync to Claude Code v2.1.245
Sync the tutorial, its four translations, and both learner-facing skills
against Claude Code v2.1.245 (was anchored at v2.1.235).
The graded material turned out to be staler than the tutorials it grades.
The lesson READMEs already said "31 hook events", "six rewind options" and
"six permission modes"; the quiz and self-assessment still said 25, 5 and 5,
so learners were scored against a wrong answer and then sent to a lesson
that contradicted it. Seven such claims are fixed here.
Two long-standing doc defects were also verified against official docs:
- Hook default timeout was documented as 60 seconds. It is 600 for
command/http/mcp_tool (30 for prompt, 60 for agent), with per-event
overrides. Wrong in five places.
- Skill precedence was documented as enterprise > project > personal. The
official order is enterprise > personal > project. question-bank.md
Lesson 03 Q9 already graded the correct order, so the lesson had been
contradicting its own quiz.
Fixed
- Hook default timeout 60s -> 600s, with per-event overrides
- Skill precedence: project and personal were swapped
- Memory "overrides root CLAUDE.md" -> concatenation model (last holdouts
after the quiz was aligned in #164)
- permissionMode frontmatter omitted `auto` (English + vi/ja/uk); the quiz
was right and the docs were wrong
- Built-in subagent `Bash` no longer exists upstream -> renamed to `claude`
- `/undo` is absent from the official commands reference -> marked deprecated
- `backgroundTasks` settings block was fabricated -> replaced with
CLAUDE_CODE_DISABLE_BACKGROUND_TASKS and the concurrency env var
- Plugin manifest field is `lspServers`, not inline `lsp`
- vi/05-mcp documented `claude mcp add --transport ws`, which upstream
explicitly does not support
- Self-assessment could never reach its own maximum score: rounds cap at
4+4+4+3+4 = 19, not 20
- 13 dangling quiz `Review:` pointers, two of which named another lesson
- Skill description cap: 1024 chars -> 1,536 combined with `when_to_use`
Added
- WebSocket (`ws`) MCP transport, undocumented until now
- Concise output style (v2.1.237), a fifth built-in
- modelPicker, promptCacheTtl, subagentPromptCacheTtl, modelPricing,
keybindingFlavor settings
- ANTHROPIC_DEFAULT_MODEL env var
- Hook `async`, `asyncRewake`, `shell`, `statusMessage`, `retry` keys;
`agent` type marked experimental
- /design canvas, Remote Control out of research preview, notify_when_idle,
plugin manifest fields (workflows, channels, dependencies, outputStyles)
Deferred deliberately: the reserved `synced` skills folder, and a bulk
footer stamp across the translations. zh/ carries none of the P0 claims
(it is abridged upstream of this run), so it has no P0 sub-tasks rather
than fabricated English.
Mermaid validation did not run in this environment (mmdc absent); CI covers it.
* fix(docs): propagate v2.1.245 corrections to CATALOG, translations, and stale enumerations
* fix(docs): propagate built-in subagent rename to uk/vi/zh CATALOG and zh lesson
* docs: sync to Claude Code v2.1.233
Bring the tutorial from the v2.1.220 baseline up to v2.1.233 (13 releases)
per update-plan-2026-08-15.md.
Corrections:
- Remove /ultraplan (removed in v2.1.222); point at plan mode instead
- Drop the 200-subagent-per-session cap and CLAUDE_CODE_MAX_SUBAGENTS_PER_SESSION
(cap removed in v2.1.224)
- Note TaskCompleted/TaskCreated only fire when todo tools are enabled
Updates:
- /review documented as an alias of /code-review (v2.1.223)
- fork subagents default to interactive (v2.1.232)
- ultrareview v2.1.227 floor, --post/--no-post
- GitLab MR support for -w/--worktree and Agent View
New sections:
- Cross-session messaging (ListAgents, SendMessage, crossSessionInbound)
- Sandbox credential masking (v2.1.221, v2.1.224)
- Trust and permission scoping
- archive and command plugin sources, conditional plugin activation
- claude self-hosted-runner, 7 new env vars
Translations (vi/ja/zh/uk) mirrored where the corresponding pages exist.
Every modified file carries the 2.1.233 metadata footer; files already at
2.1.220 with no content change were left alone.
* docs: address review findings from the v2.1.233 sync
- Mirror the /review alias correction (v2.1.223) into vi/ja/uk/zh
01-slash-commands: add the live alias row, drop the stale row from the
deprecated table, and rewrite the history bullet. All four still called
/review deprecated in favour of a code-review plugin while carrying a
2.1.233 stamp.
- Rewrite the 10-cli CLAUDE_CODE_FORK_SUBAGENT row to agree with
04-subagents: fork mode is on by default in interactive sessions on every
build since v2.1.232; the variable enables it where it is off by default.
- Remove a stray blank line that split the 10-cli environment-variable
table, leaving the seven new v2.1.221-v2.1.233 rows without a delimiter
row and rendering them as literal pipe text.
- Add the todo-tools caveat to the TaskCompleted row alongside TaskCreated
in claude_concepts_guide, uk/ja concepts guides, and the uk/vi/zh/ja
CATALOGs.
- Fix the ja 07-plugins and 09-advanced-features footers, which paired a
2.1.233 version stamp with an April 24 last-updated date.
* docs(subagents): correct the stale fork-subagent claim in ja pages (#171)
ja/10-cli and ja/04-subagents both stated that CLAUDE_CODE_FORK_SUBAGENT
only enables forked subagents on external builds (Bedrock, Vertex,
Foundry) with no effect on the Anthropic API. That was true at v2.1.117
but has been wrong since v2.1.232: fork mode is on by default in
interactive sessions on every build, first-party or not, and the variable
now turns it on where it is off by default (claude -p, the Agent SDK, or
Claude Code older than v2.1.232).
Both pages remain stamped 2.1.119 on purpose. Only the individual claim
was verified and corrected; bumping the page stamp would assert a
whole-page verification that has not been done. Do not bump these stamps
without a full resync of the pages.
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.
Bumps tutorial coverage from the v2.1.212 baseline (2026-07-18 sync) to
v2.1.217 (v2.1.213 was skipped upstream), plus a repo-internal accuracy
audit.
Fixed:
- Nested-subagent-spawning claim reversed (v2.1.217): 04-subagents/README.md
and CATALOG.md stated nesting up to 5 levels as current behavior; as of
v2.1.217 it's off by default, opt in via CLAUDE_CODE_MAX_SUBAGENT_SPAWN_DEPTH
- Stale --enable-auto-mode flag (removed in v2.1.111) replaced with
--permission-mode auto across 10-cli/README.md and QUICK_REFERENCE.md
- Import-depth contradiction in 02-memory/README.md: two remaining "5 levels"
instances corrected to "4 hops", matching the rest of the file
- Sonnet 5 added to claude_concepts_guide.md's models/reasoning-effort table
- config-examples.json's fabricated settings schema (fake "unrestricted"/
"confirm" modes, undocumented keys) rewritten to real settings.json keys
- brand-voice skill (name/user-invocable) aligned to its README worked example
- CLAUDE.md length guidance unified across 03-skills/claude-md/SKILL.md and
02-memory/README.md
Added:
- New subagent caps (v2.1.217): CLAUDE_CODE_MAX_CONCURRENT_SUBAGENTS
- --max-budget-usd now also halts running background subagents (v2.1.217)
- Hook if: glob scope narrowed to <cwd>/dir (v2.1.214), documented in
06-hooks/README.md along with SessionStart's new "fork" source
- sandbox.filesystem.disabled setting (v2.1.216)
- /rewind symlink/hard-link protection (v2.1.216)
- Auto-memory modified timestamp (v2.1.214) and non-blocking /memory editor
(v2.1.216)
- CLI/settings batch (v2.1.214-217): emojiCompletionEnabled,
FORCE_HYPERLINK=0, CLAUDE_CODE_OTEL_CONTENT_MAX_LENGTH, --settings 2 MiB
cap, permission hardening notes, /context and /compact notes
- /verify and /code-review explicit-invocation-only note (v2.1.215)
Mirrored applicable P0/P1 fixes into vi/ja/zh/uk translations where the
same claim existed.
- Replace 3KB stub README with full 31KB translation matching original structure
- Fix apostrophe anchor mismatch in 04-subagents (U+02BC vs U+0027)
- Fix duplicate heading in 06-hooks (Prompt-хуки → Хуки на основі промптів)
Ref: luongnv89/claude-howto#63
Modules 06-hooks, 07-plugins, 09-advanced-features, 10-cli had
truncated translations (18-58% content loss). Retranslated from
scratch using original English sources.
All files now match expected ~40% size increase for Cyrillic.
Ref: luongnv89/claude-howto#63
Luong NGUYEN