Sync all English tutorials with Claude Code v2.1.112 and the new Opus 4.7
model (claude-opus-4-7). Introduces the xhigh effort level (new default on
Opus 4.7), two new built-in slash commands (/ultrareview,
/less-permission-prompts), auto mode without --enable-auto-mode for Max
subscribers on Opus 4.7, PowerShell tool on Windows, Auto-match-terminal
theme, and plan files named after prompts. All 18 EN doc footers bumped to
Claude Code v2.1.112.
Version callouts in README.md, zh/README.md, and uk/README.md updated to
v2.1.112. Changelog entry prepended.
Repo version now tracks Claude Code version (2.3.0 → 2.1.112 is intentional
per new convention).
* docs: sync to Claude Code v2.1.110 with TUI, push notifications, session recap, and new commands
- 01-slash-commands: add /tui, /focus, /recap, /undo, /proactive to command table and recent changes
- 07-plugins: document monitors manifest key for background monitor support (v2.1.105)
- 09-advanced-features: add TUI mode, push notifications, session recap, ENABLE_PROMPT_CACHING_1H
- 10-cli: add --exclude-dynamic-system-prompt-sections flag and CLAUDE_CODE_PERFORCE_MODE env var
- CATALOG.md: update command counts (55+→60+, 63+→68+), add 5 new command rows
- All 12 files: bump footer to April 16, 2026 / Claude Code Version 2.1.110
* fix(catalog): correct version tags for /proactive, /recap, /undo commands
/proactive was added in v2.1.105, /recap and /undo in v2.1.108 — not v2.1.110.
Only /tui and /focus were introduced in v2.1.110.
The pre-tool-check.sh example had three bugs rooted in the same
misunderstanding of the Claude Code PreToolUse hook protocol
(stdin/stdout/stderr + exit code contract):
1. Substring matching on `rm -rf /`
The pattern was unanchored, so grep treated it as a substring and
falsely blocked any command containing `rm -rf /` — including benign
calls like `rm -rf /tmp/build` or `rm -rf /var/cache/foo`. Fixed by
anchoring the slash to a whitespace-or-end-of-line boundary.
2. WARN tier was dead code
The warning layer printed to stderr and then `exit 0`. Claude Code
silently discards stderr on exit 0, so the warnings were never seen
by Claude, the user, or any log. Fixed by adding an audit log file
at `$CLAUDE_PROJECT_DIR/.claude/hooks/audit.log` that records every
invocation with its decision (BLOCK/WARN/ALLOW). The audit log is
now the reliable observability mechanism for the WARN tier.
3. BLOCK reasons printed to stdout instead of stderr
On `exit 2`, Claude Code reads stderr to surface the block reason
to Claude. The echoes before `exit 2` defaulted to stdout, so
Claude Code reported `"No stderr output"` and Claude had to read
the hook source file to infer why a command was blocked. Fixed by
explicitly redirecting the block-reason echoes to stderr with `>&2`.
Also escaped the regex metacharacters in the fork-bomb pattern
`:(){:|:&};:` so it matches literally under `grep -E`, and updated the
header docstring to document the stdout/stderr/exit-code convention so
future readers don't make the same mistakes.
Verified with 6 smoke tests covering: benign command (ALLOW), warn-tier
relative path, substring edge case (`rm -rf /tmp/...` no longer falsely
blocked), exact root match (`rm -rf /`, `rm -rf / ; echo` still blocked),
fork-bomb literal, and `git push --force` (WARN only). stdout is empty
in all cases; all reasons correctly routed to stderr or the audit log.
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* docs: sync to Claude Code v2.1.101 with new feature coverage
Bumps all English docs from v2.1.97 to v2.1.101, adds mandatory Sources
footer block (previously missing), and documents three new features
shipped between v2.1.98 and v2.1.101:
- /team-onboarding (v2.1.101) — new built-in command for generating
teammate ramp-up guides. Added to 01-slash-commands and CATALOG.
- /ultraplan (v2.1.91+, cloud-env auto-creation in v2.1.101) — full
section in 09-advanced-features covering launch methods, status
indicators, and execution options. Replaces prior 3-line stub.
- Monitor tool (v2.1.98) — full section in 09-advanced-features with
stream-filter and poll-emit patterns and the grep --line-buffered
warning. Added to resources.md feature table.
Vietnamese and Chinese translations are not touched in this sync.
* fix(docs): address review feedback on v2.1.101 sync
- Correct /team-onboarding availability date (April 10 → April 11, 2026)
- Fix uninitialized \$last variable in Monitor poll-and-emit example
- Update CATALOG.md New Features heading to April 2026 and add Monitor
Tool, /team-onboarding, and Ultraplan auto-create entries
- 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
Full Ukrainian translation of the comprehensive concepts guide (87KB, 3135 lines).
All code blocks, Mermaid diagrams, and JSON configs preserved as-is.
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
Complete Ukrainian translation of QUICK_REFERENCE.md - the quick
reference card for all Claude Code features.
- Installation quick commands for all features
- Feature cheat sheet with paths and usage
- Common use cases (code review, docs, DevOps, CI/CD)
- File locations reference diagram
- Learning path (Day 1 through Week 3+)
- New features (March 2026) section
- Tips, FAQ, and getting started checklist
Progress: 4/67 files (P1: 4/5 core documents)
Ref: luongnv89/claude-howto#63
Complete Ukrainian translation of INDEX.md - the comprehensive
index of all example files in the repository.
Translation follows uk/TRANSLATION_NOTES.md guidelines:
- Technical terms per glossary
- File paths and code blocks preserved in English
- Table structure and formatting maintained
- All 883 lines translated
- i18n-source-sha frontmatter added for version tracking
Progress: 2/67 files (P1: 2/5 core documents)
Ref: luongnv89/claude-howto#63
The latest Claude Code release is 2.1.97, not 2.3.0 (which is this
guide's own version). Update all 20 "Claude Code Version" footer lines
to accurately reflect the documented Claude Code version.
Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)
Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
Update all documentation footers from generic "April 2026 / 2.1+" to
the specific sync date (April 9, 2026) and documented version (2.3.0).
Also add version/date footers to zh/CATALOG.md and
zh/01-slash-commands/README.md which were missing them.
Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)
Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
P0 Critical:
- Remove /vim (removed in v2.1.92) from CATALOG.md, zh/CATALOG.md active tables
- Move /vim to deprecated section in zh/01-slash-commands/README.md
- Fix fake hook events (PreCommit/PrePush/PostPush) in config-examples.json
- Replace with real PreToolUse hook pattern
- Update deprecated model IDs: claude-sonnet-4-5 → claude-sonnet-4-6 (x4)
- Fix notify-team.sh comment: PostPush → PostToolUse with explanation
- Mark # memory shortcut as discontinued in 02-memory/README.md
P2 Conflicts resolved:
- effort:max confirmed valid in current CLI; no changes needed
- Remove WebSocket MCP transport (not supported; only stdio/sse/http valid)
from 05-mcp/README.md, CATALOG.md, QUICK_REFERENCE.md
P4 Cosmetic:
- Update hook count 25 → 26 in QUICK_REFERENCE.md
Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)
Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
* docs: sync all tutorials with latest Claude Code official docs (April 2026)
Update 44 documentation files to reflect the latest Claude Code features
from code.claude.com. Key content changes include new slash commands
(/ultraplan, /powerup, /sandbox), deprecated command removals (/pr-comments,
/vim), corrected skill description budget (1%/8K), new hook events
(PermissionDenied, InstructionsLoaded, ConfigChange), expanded Agent Teams
section, new plugin components (LSP, bin/, settings.json), and new CLI
flags (--bare, --tmux, --effort, --channels). Added "Last Updated: April
2026" metadata footer to all documentation files.
* fix(docs): correct env var values and alphabetical ordering
- CLAUDE_CODE_NEW_INIT=true → =1 in 02-memory and 09-advanced-features
- CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS=true → =1 in 09-advanced-features
- Fix /powerup vs /plugin alphabetical order in slash commands table
* fix(docs): correct env var values in locale files (vi, zh)
Propagate CLAUDE_CODE_NEW_INIT=true → =1 and
CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS=true → =1 corrections
to Vietnamese and Chinese translations.
Extend the release workflow to build separate EPUB artifacts for en, vi,
and zh in parallel via a matrix job, then publish all built files under
a single GitHub Release. Using fail-fast: false so a failure in one
language does not block releasing the others.
Also refactor build_epub.py to drive language-specific paths, filenames,
and titles from a mapping, and add zh support (title/subtitle + choice).
* fix(hooks): make hook scripts compatible with Windows Git Bash and use stdin JSON protocol
- Replace `grep -P` (Perl regex) with `sed` for JSON field extraction,
as Windows Git Bash does not support `grep -P`
- Replace positional arg (`$1`) with stdin JSON parsing to match the
actual Claude Code hook protocol (hooks receive data via stdin, not args)
- Fix JSON double-quote escaping in grep patterns that silently fails
on Windows Git Bash
- Remove python3 dependency for JSON parsing, making scripts portable
- Add Windows Git Bash to compatibility notes in script headers
Affected scripts: security-scan.sh, validate-prompt.sh, log-bash.sh, format-code.sh
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix(hooks): address review issues in Windows Git Bash compatibility scripts
- security-scan.sh: wrap output in hookSpecificOutput format required by
PostToolUse protocol; restore secret/token detection pattern that was
dropped; escape file path and issues for safe JSON construction
- validate-prompt.sh: extract "user_prompt" field first (Claude Code
UserPromptSubmit protocol), falling back to "prompt"
- log-bash.sh: document sed truncation limitation for commands with
double-quoted strings
- format-code.sh: fix misleading comment about updatedInput output
* fix(hooks): produce valid JSON from security-scan.sh
- Use \\n (JSON newline escape) when building ISSUES, not real newlines,
so the value passes safely through printf into the JSON string
- Remove the real-newline-to-\\n sed pass (no longer needed)
- Output is now verifiably valid JSON per python3 json.loads
* fix(hooks): fix grep -E POSIX compat and semgrep/trufflehog stdout mixing
- Replace \s with [[:space:]] in grep -E patterns (security-scan.sh lines
34,44): \s is a Perl extension, silently fails on macOS BSD grep and
BusyBox — password/secret detection was a no-op on macOS
- Suppress stdout of semgrep/trufflehog (>/dev/null) to prevent their
output mixing with hookSpecificOutput JSON, which would produce invalid
JSON and cause the additionalContext to fail parsing
- Fix format-code.sh hook comment: PreToolUse → PostToolUse (matches
README example and actual hook behavior)
---------
Co-authored-by: Bruce <binyuli1993@foxmail.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
* feat: add performance-optimizer subagent and dependency-check hook
Agent-Logs-Url: https://github.com/khanhnkq/claude-howto/sessions/ef3fb01c-a9c0-466e-9ad2-f255f306add2
Co-authored-by: khanhnkq <180888435+khanhnkq@users.noreply.github.com>
* fix(hooks): use basename for manifest matching in dependency-check.sh
FILE=$1 receives an absolute path (e.g. /home/user/project/package.json).
The case statement and all [[ "$FILE" == ... ]] guards matched bare filenames,
so every invocation would hit the *) exit 0 branch and skip all vuln scans.
Extract BASENAME=$(basename "$FILE") and use it for all pattern matching.
---------
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Luong NGUYEN <luongnv89@gmail.com>
The autoCheckpoint setting does not exist in Claude Code's settings
schema. Checkpointing is automatic and built-in — every user prompt
creates a checkpoint. Replace the incorrect config example with the
actual cleanupPeriodDays setting, which controls retention period.
Fixes#18
* feat: add missing pre-tool-check.sh hook to 06-hooks
The LEARNING-ROADMAP.md (Milestone 2A) referenced this file in an
exercise that copies it to ~/.claude/hooks/, but the file did not exist.
This caused confusion for learners following the guide.
The new pre-tool-check.sh is a PreToolUse hook for the Bash matcher that:
- Blocks unconditionally destructive commands (rm -rf /, dd, fork bomb, etc.)
- Warns on high-risk commands (rm -rf, git push --force, DROP TABLE, etc.)
- Reads tool input JSON from stdin (matching Claude Code hook protocol)
- Requires no external dependencies (pure bash + grep)
Fixes#32
* fix(hooks): correct exit code, remove set -e, use portable sed in pre-tool-check.sh
- Change `exit 1` to `exit 2` so Claude Code actually blocks the command
(exit 1 is treated as a non-blocking error; exit 2 is required to block)
- Remove `set -euo pipefail`: `set -e` caused the script to exit on the
first non-matching grep result, skipping all remaining pattern checks
- Replace non-portable `grep -o '"command"\s*:\s*"[^"]*"'` with
`sed -n 's/.*"command"[[:space:]]*:[[:space:]]*"\([^"]*\)".*/\1/p'`
which works on both macOS (BSD) and Linux without GNU grep extensions
Closes#32
---------
Co-authored-by: Luong NGUYEN <luongnv89@gmail.com>
* ci: shift-left quality gates — add mypy to pre-commit, fix CI failures
- Add mypy pre-commit hook (mirrors-mypy v1.13.0) so type checks run locally
- Add [tool.mypy] config to scripts/pyproject.toml with overrides for untyped libs (ebooklib, sync_translations)
- Add mypy>=1.8.0 to requirements-dev.txt
- Fix CI test.yml: remove continue-on-error: true from lint/security/type-check jobs (was silently swallowing failures)
- Fix CI bandit -c path: pyproject.toml → scripts/pyproject.toml
- Fix CI mypy command: use --config-file scripts/pyproject.toml
- Fix CI build-epub: add type-check to needs, fix if: success() → !failure() && !cancelled()
- Fix ruff errors in sync_translations.py (RUF013 implicit Optional, SIM102 nested if)
- Fix mypy errors: add list[str] annotations to errors vars in check_cross_references.py and check_links.py
* fix(ci): install mmdc in build-epub job and correct return type annotation
- Add npm install step for @mermaid-js/mermaid-cli before Build EPUB
to fix CI failure (mmdc not found error)
- Fix check_translation_status() return type from list[dict] to
tuple[list[dict], list[dict]] to match the actual return value
* fix(ci): pass --no-sandbox to Puppeteer in build-epub CI job
mmdc (Mermaid CLI) uses Puppeteer/Chromium which requires --no-sandbox
in the GitHub Actions sandboxed environment. Add --puppeteer-config flag
to build_epub.py that passes a Puppeteer JSON config file to mmdc via -p,
and use it in the CI workflow to inject the no-sandbox args.
* refactor(epub): replace Kroki HTTP dependency with local mmdc rendering (#10)
Remove httpx/tenacity dependencies and Kroki.io API calls from the EPUB
build pipeline. MermaidRenderer now invokes mmdc (mermaid-cli) as a local
subprocess, eliminating intermittent CI failures caused by network
unavailability. CI workflow installs @mermaid-js/mermaid-cli before build.
* fix(epub): add subprocess timeout and fix deduplication log count
- Add 60s timeout to mmdc subprocess.run to prevent hanging builds
when Chromium/Puppeteer stalls in headless CI environments
- Fix misleading log that printed unique/total as equal counts;
now logs "N unique diagrams (M total blocks)" explicitly
- Add test_render_all_timeout and strengthen deduplication assertion
Add Chinese (Simplified) translations for all documentation, organized
under a dedicated zh/ directory that mirrors the English folder structure.
Co-authored-by: tanqingkuang <tanqingkuang@users.noreply.github.com>
Translations originally contributed by @tanqingkuang in #45.
Restructured from *-CN.md suffix pattern into zh/ directory to prevent
the EPUB builder (scripts/build_epub.py collect_folder_files) from
picking up Chinese files via glob("*.md") inside module folders.
The Foliate EPUB reader blocks <object> elements (not <img>), so SVG
images can be served via <img> tags. Embed SVG files as EPUB resources,
unwrap <picture>/<source> wrappers, and skip external badge URLs.
Closes#44
- Replace `grep -P` (Perl regex) with `sed` for JSON field extraction,
as Windows Git Bash does not support `grep -P`
- Replace positional arg (`$1`) with stdin JSON parsing to match the
actual Claude Code hook protocol (hooks receive data via stdin, not args)
- Fix JSON double-quote escaping in grep patterns that silently fails
on Windows Git Bash
- Remove python3 dependency for JSON parsing, making scripts portable
- Add Windows Git Bash to compatibility notes in script headers
Affected scripts: security-scan.sh, validate-prompt.sh, log-bash.sh, format-code.sh
Co-authored-by: Bruce <binyuli1993@foxmail.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
* refactor(ci): shift quality checks to pre-commit, CI as 2nd pass
- Remove ci.yml (lint, security, pytest were only for EPUB scripts)
- Move EPUB build to pre-commit local hook (runs on .md changes)
- Add check_cross_references.py, check_mermaid.py, check_links.py scripts
- Add markdown-lint, cross-references, mermaid-syntax, link-check as
pre-commit hooks — mirrors all 4 CI doc-check jobs locally
- Remove spell check job from docs-check.yml (breaks on translations)
- Refactor docs-check.yml to reuse scripts/ instead of inline Python
- Add .markdownlint.json config shared by pre-commit and CI
- Update CONTRIBUTING.md with required dependencies and hook table
* fix(ci): resolve all CI check failures in docs-check workflow
- fix(check_cross_references): skip code blocks and inline code spans
to avoid false positives from documentation examples; fix emoji
heading anchor generation (rstrip not strip); add blog-posts,
openspec, prompts, .agents to IGNORE_DIRS; ignore README.backup.md
- fix(check_links): strip trailing Markdown punctuation from captured
URLs; add wikipedia, api.github.com to SKIP_DOMAINS; add placeholder
URL patterns to SKIP_URL_PATTERNS; add .agents/.claude to IGNORE_DIRS
- fix(check_mermaid): add --no-sandbox puppeteer config support via
MERMAID_PUPPETEER_NO_SANDBOX env var for GitHub Actions Linux runners
- fix(docs-check.yml): pass MERMAID_PUPPETEER_NO_SANDBOX=true to mermaid job
- fix(content): repair broken anchors in README.md, 09-advanced-features;
fix #plugins -> #claude-code-plugins in claude_concepts_guide.md;
remove non-existent ./docs/performance.md placeholder links; fix
dependabot alerts URL in SECURITY_REPORTING.md; update auto-mode URL
in resources.md; use placeholder pattern for 07-plugins example URL
- remove README.backup.md (stale file)
* fix(check-scripts): fix strip_code_blocks regex and URL fragment handling
- fix regex in strip_code_blocks to avoid conflicting MULTILINE+DOTALL
flags that could fail to strip indented code fences; use DOTALL only
- strip URL fragments (#section) before dispatching link checks to avoid
false-positive 404s on valid URLs with anchor fragments
* fix(check-scripts): fix anchor stripping, cross-ref enforcement, and mermaid temp file cleanup
- heading_to_anchor: use .strip("-") instead of .rstrip("-") to also strip leading hyphens
produced by emoji-prefixed headings, preventing false-positive anchor errors
- check_cross_references: always exit with main()'s return code — filesystem checks
should block pre-commit unconditionally, not silently pass on errors
- check_mermaid: wrap file-processing loop in try/finally so the puppeteer config
temp file is cleaned up even if an unexpected exception (e.g. UnicodeDecodeError) occurs
- docs-check.yml: remove now-unused CROSS_REF_STRICT env var
* fix(scripts): fix anchor stripping and mermaid output path
- Replace .strip('-') with .rstrip('-') in heading_to_anchor() so leading
hyphens from emoji-prefixed headings are preserved, matching GitHub's
anchor generation behaviour.
- Use Path.with_suffix('.svg') in check_mermaid.py instead of
str.replace('.mmd', '.svg') to avoid replacing all occurrences of .mmd
in the full temp path.
Luong NGUYEN