[ayoub-khemissi]

Summary

Replace the bash-based rtk-rewrite.sh hook with a native Rust rtk hook-rewrite subcommand, eliminating the bash/jq dependency and enabling cross-platform support (Windows, macOS, Linux).

• New src/hook_cmd.rs (1126 lines): Pure Rust command rewriter that reads Claude Code PreToolUse JSON from stdin, rewrites known commands to their rtk equivalents, and outputs updated JSON. Supports command chains (&&, ;), env var prefixes, git/cargo/docker/kubectl global flags, and 30+ command patterns (git, cargo, gh, pnpm, vitest, tsc, eslint, prettier, playwright, prisma, pytest, ruff, pip, go, golangci-lint, curl, wget, cat, grep, find, ls, tree, head, diff).
• Updated src/init.rs: rtk init now installs the native rtk hook-rewrite command instead of the bash script. Includes migration logic to clean up old .sh hook files. Both old and new formats are detected during --uninstall.
• Updated src/main.rs: Added hidden hook-rewrite subcommand routing to hook_cmd::run().
• New build.rs: Set 8 MB stack size on Windows to prevent debug build stack overflow (Windows defaults to 1 MB vs 8 MB on Unix).
• Minor src/gain.rs: Formatting fix (line wrapping for table_width calculation).

Why native?

	Bash hook (rtk-rewrite.sh)	Native hook (rtk hook-rewrite)
Dependencies	bash + jq required	None (single binary)
Windows	Requires Git Bash/WSL	Works natively
Performance	Shell startup + jq parsing	Direct Rust execution
Security	Shell script attack surface	Pure string manipulation, no shell spawning
Maintenance	Separate script file to distribute	Built into rtk binary

Security review

Per SECURITY.md checklist:

• No Command::new("sh") — pure string rewriting, no shell spawning
• No unsafe {} blocks
• No network operations (reqwest::, std::net::)
• No environment manipulation (.env("LD_PRELOAD"))
• No .unwrap() in production paths (only in lazy_static! regex compilation)
• Input validation via allowlists (specific subcommands matched, not denylists)
• Graceful failure: any parse error → exit(0) (no rewrite, original command passes through)
• init.rs changes reduce attack surface by removing bash script dependency

Test plan

• 56 unit tests covering all rewrite patterns, edge cases, command chains, env prefixes, JSON roundtrip
• cargo fmt --all --check && cargo clippy --all-targets && cargo test --all passes
• Manual test: rtk init --auto-patch installs native hook command in settings.json
• Manual test: rtk init --uninstall removes both old .sh and new native hook entries
• Manual test: In Claude Code session, raw git status is rewritten to rtk git status
• Cross-platform: Verify on Windows (no bash dependency needed)

Verification results (Windows 11, 2026-02-16)

Quality pipeline

Check	Result
cargo fmt --all --check	PASS — no diff
cargo clippy --all-targets	PASS — 45 pre-existing warnings, 0 errors
cargo test --all	PASS — 413 tests, 0 failures

Uninstall coverage

Scenario	Result
Remove native hook (rtk hook-rewrite) from settings.json	OK
Remove old bash hook (rtk-rewrite.sh) file	OK
Remove RTK.md	OK
Remove @RTK.md reference from CLAUDE.md	OK
Migration .sh → native then uninstall	OK — both cleaned up
Idempotent uninstall (nothing installed)	OK — "RTK was not installed"

Hook-rewrite manual verification

Raw command	Rewritten to
git status	rtk git status
cargo test -- --nocapture	rtk cargo test -- --nocapture
cd /project && git status && cargo test	cd /project && rtk git status && rtk cargo test
TEST_ID=123 git status	TEST_ID=123 rtk git status
cat src/main.rs	rtk read src/main.rs
python -m pytest tests/	rtk pytest tests/
rtk git status (already prefixed)	No double-rewrite
Non-Bash tool (Read)	Silently ignored (exit 0)

Cross-platform (Windows)

• Binary: Native PE64 executable, 5.4 MB stripped
• Zero bash dependency: No bash, sh, jq, sed, grep calls in hook_cmd.rs
• hook-rewrite: Pure Rust stdin/stdout JSON, works natively on Windows
• Stack overflow fix: build.rs sets /STACK:8388608 (8 MB) on Windows via linker flag — zero runtime overhead, matches Unix defaults

🤖 Generated with Claude Code

[aeppling]

Hello,

Approved.

Code is correct for me, but for futures PR please split files into respective components to avoid having 1000+ lines files.

We should refactor the code structure of the project for a clean architecture that will help for easy reviewing and extensible code.

[pszymkowiak]

Thanks for this massive PR — the native hook-rewrite is a great step forward for cross-platform support!

I did an exhaustive test of 313 commands across all 12 categories, simulating the real Claude Code hook JSON format (tool_input.command). Here are the full results:

Test Results: 312/313 passed (99.7%)

Category	Tested	Passed	Notes
Git (supported)	29	29	status, diff, log, add, commit, push, pull, branch, fetch, stash, show, worktree
Git (blocked)	15	15	checkout, merge, rebase, reset, cherry-pick, tag, bisect, reflog, remote, clean, blame, init, clone
Git (global flags)	7	7	-C, --no-pager, --bare, --no-optional-locks, -c key=val
GitHub CLI (supported)	17	17	pr, issue, run, api, release
GitHub CLI (blocked)	5	5	repo, gist, workflow, auth, config
Cargo (supported)	19	19	build, test, clippy, check, fmt, install, +toolchain
Cargo (blocked)	7	7	run, new, publish, doc, bench, update, add
Files	21	21	cat→read, head→read --max-lines, ls, tree, find, diff
Grep/Search	8	8	grep, rg → rtk grep
Network	5	5	curl, wget
Docker (supported)	18	18	ps, images, logs, run, build, exec, compose
Docker (blocked)	7	7	rm, rmi, stop, push, pull, network, volume
Kubectl (supported)	15	15	get, logs, describe, apply + global flags
Kubectl (blocked)	7	7	create, delete, edit, scale, exec, port-forward, rollout
JS/TS — vitest	9	9	vitest, npx vitest, pnpm vitest
JS/TS — tsc	11	11	tsc, npx tsc, pnpm tsc, vue-tsc, npx vue-tsc
JS/TS — eslint	9	8	pnpm eslint . not rewritten (see below)
JS/TS — prettier	5	5	prettier, npx prettier
JS/TS — playwright	5	5	playwright, npx playwright, pnpm playwright
JS/TS — prisma	7	7	prisma, npx prisma
NPM	6	6	npm test, npm run build/dev/lint/start
PNPM (supported)	3	3	list, ls, outdated
PNPM (blocked)	5	5	install, add, remove, run, dev
Python — pytest	8	8	pytest, python -m pytest + flags
Python — ruff (supported)	5	5	check, format
Python — ruff (blocked)	2	2	rule, linter
Python — pip/uv (supported)	8	8	list, outdated, install, show + uv variants
Python — pip/uv (blocked)	3	3	freeze, download
Go (supported)	9	9	test, build, vet + flags
Go — golangci-lint	3	3	run + flags
Go (blocked)	5	5	run, mod, install, get, generate
Env prefix	4	4	NODE_ENV=, RUST_LOG=, CI=, multi-var
Chained commands (&&)	4	4	git&&git, cargo&&cargo, cd&&ls, mkdir&&cd
Skip (no rewrite)	21	21	rtk *, echo, mkdir, cd, rm, mv, cp, chmod, which, env, export, source, python, node, make, cmake, gradle, mvn, dotnet
Heredoc	1	1	cat <<EOF skipped

Only issue: pnpm eslint . not rewritten

pnpm eslint . → no rewrite (expected rtk lint .).

The hook handles pnpm lint (script name) but not pnpm eslint (direct binary). Minor — most projects use pnpm lint in practice.

Notes on kubectl / docker compose syntax

The hook correctly mirrors real CLI syntax:

• kubectl get pods → rtk kubectl get pods
• docker compose logs web → rtk docker compose logs web

RTK currently uses shorter aliases (rtk kubectl pods, rtk docker ps/images/logs only), but that's a design issue on our side — we'll update RTK to accept the full natural syntax. No action needed on this PR.

Verdict

Excellent work. 312/313 commands rewrite correctly across 35 test categories. The chain splitting (&&, ;), env prefix preservation (NODE_ENV=test npm test), global flag stripping (git -C, --no-pager; docker -H; kubectl --namespace, -n), heredoc detection, and quote-aware parsing all work correctly.

The only fix needed is adding pnpm eslint support alongside the existing pnpm lint handling. Thanks!

I'm giving @aeppling the green light to merge once the pnpm eslint fix is in.

[ayoub-khemissi]

Fixes from review feedback

1. Split hook_cmd.rs into modules

The monolithic 1127-line file has been split into 9 files under src/hook/:

File	Responsibility
mod.rs	Entry point, chain parsing, orchestrator
git.rs	Git + GitHub CLI
cargo.rs	Cargo
files.rs	cat, grep, ls, tree, find, diff, head, curl, wget
js_ts.rs	vitest, tsc, eslint, prettier, playwright, prisma, pnpm
containers.rs	Docker + kubectl
python.rs	pytest, ruff, pip/uv
go.rs	go test/build/vet, golangci-lint
helpers.rs	Shared utilities (replace_prefix, starts_with_any)

All 71 hook tests preserved and passing.

2. Fix pnpm eslint (the 1/313 missing)

Added pnpm eslint . → rtk lint . support in js_ts.rs, with 2 dedicated tests (test_pnpm_eslint, test_pnpm_eslint_bare).

→ 313/313 commands now covered.

3. Fix CI validate-docs

• Updated version 0.18.1 → 0.19.0 in README.md, CLAUDE.md, ARCHITECTURE.md
• Fixed module count 47 → 49 in ARCHITECTURE.md
• Updated workflow and validate-docs script to check src/hook/ (native hook) instead of .claude/hooks/rtk-rewrite.sh (legacy bash hook)

[pszymkowiak]

Follow-up: Real Execution Testing + Migration Warning

Following up on my earlier 313-command protocol test — I went deeper and tested every RTK filter with real toolchains (not just the JSON rewrite protocol). Also found critical issues with the auto-migration behavior.

Real Execution: 98/98 pass

Built the PR branch (merged master, zero conflicts, 491 tests pass) and tested against actual projects in /tmp/:

Ecosystem	Commands	Pass	Tools
Rust	9	9	cargo build/test/check/clippy/fmt
Node.js	15	15	vitest, eslint, prettier, playwright, tsc, pnpm, npm, prisma
Python	11	11	pytest, ruff check/format, pip list/outdated/show
Go	8	8	go test/build/vet, golangci-lint
Git	11	11	status, log, diff, branch, show, fetch, stash, etc.
GitHub CLI	9	9	pr, issue, run, release (list/view/diff)
Docker/K8s	4	4	ps, images, pods, services
Files	18	18	ls, tree, find, read, grep, diff, json, log, smart, wc, env, deps
Network	3	3	curl, wget
Meta	8	8	gain, version, init, err, summary, proxy
Total	98	98

All RTK filters work perfectly with real command output. Zero regressions vs master.

---

Critical: Don't Auto-Migrate to Native Hook

init.rs hardcodes HOOK_COMMAND = "rtk hook-rewrite" and migrate_old_hook() silently replaces the bash hook on rtk init.

This is breaking. Deeper testing (beyond the 313 protocol commands) revealed 3 P0 bugs that would silently corrupt user workflows:

P0 — Must fix before making native hook default

#	Bug	Example	Impact
1	gh --json/--jq/--template rewritten	gh pr list --json number → rtk gh pr list --json number	Breaks JSON parsing for scripts/jq/Claude Code (#196)
2	Git global flags crash RTK	git --no-pager log → rtk git --no-pager log → error	Breaks routinely used --no-pager
3	cat file1 file2 multi-file → crash	cat f1.txt f2.txt → rtk read f1.txt f2.txt → error	rtk read only accepts single file

These aren't edge cases — gh --json and git --no-pager are used in almost every Claude Code session.

Suggested approach:

1. Keep bash hook as default when merging
2. Add opt-in: rtk init --native-hook for early adopters
3. Fix P0s → then switch default in a future release

P1 — Should fix

#	Bug	Example	Fix
4	head -n N not handled	head -n 20 file → not rewritten	Add regex for head -n (\d+) in hook/files.rs
5	Pipes not split	git log | head -5 → rewritten as one command	Split on | like &&/;

P2 — Nice to have (follow-up PRs)

pnpm install/pnpm run, env/printenv, bun commands, wc, tail -n N — all have RTK filters but no hook rewrite routing yet.

---

Roadmap: Toward an Extensible Hook Engine

This PR provides excellent rewrite coverage (hardcoded in Rust modules). Long term, we want the community to add rewrite rules without modifying Rust source code.

We plan to also leverage ideas from PR #156 (Hook Engine by @ahundt) which brings:

• A lexer + chain analysis engine for quote-aware command parsing
• A rtk run -c executor that routes commands to the right filter at runtime
• A rtk hook check debugger for testing rewrites without execution

Combined with the declarative TOML plugin system (#139), this enables:

# ~/.config/rtk/plugins/terraform.toml
[filter]
command = "terraform"
subcommands = ["plan", "apply", "init"]
strategy = "strip"
patterns = ["^Acquiring", "^- Installed", "^Terraform has been"]

Community contributors would add support for new tools by dropping a .toml file — no Rust compilation needed.

Why not JS hooks? (ref: closed PR #141)

• Performance: Node.js/Bun adds 30-80ms startup overhead per hook invocation — RTK targets <10ms. Every command triggers the hook; this latency compounds fast
• Runtime dependency: Requires Node.js or Bun — breaks the single static binary philosophy
• Maintenance burden: Duplicates regex logic across two codebases (bash + JS) that must stay in sync
• Not extensible: Hardcoded patterns, no plugin mechanism
• This PR's native Rust binary already solves Windows support (CI builds Windows binaries)

---

Bottom Line

RTK filters are rock solid (98/98 real execution). The hook architecture is clean and well-modularized.

Recommendation: Merge but keep bash hook as default. Fix the 3 P0s in follow-ups, then switch. Long term, combine with PR #156's engine + TOML plugins for community-extensible rewrite rules.

Happy to discuss any of these points.

[pszymkowiak]

Please rebase on master — there are conflicts in ARCHITECTURE.md and src/main.rs. Also please address the P0 bugs raised in the earlier review before we can merge.

[ayoub-khemissi]

Fixes from review feedback (round 2)

1. Rebased on upstream/master

Merged 10 upstream commits (up to 0.23.0). Conflict in ARCHITECTURE.md resolved (module count updated to 52). src/main.rs auto-merged cleanly. 524 tests pass.

2. P0 bug fixes — all 3 resolved

#	Bug	Root cause	Fix	Tests added
P0-1	gh pr list --json number → rtk gh pr list --json number breaks JSON parsing	try_rewrite_gh didn't check for structured output flags	Skip rewrite when --json, --jq, or --template present in command (hook/git.rs)	5 tests
P0-2	git --no-pager log → rtk git --no-pager log → RTK parse error	Hook stripped global flags for subcommand detection but preserved them in the rewritten output	Strip global flags (--no-pager, -C, --bare, --no-optional-locks, -c key=val) from both match and output (hook/git.rs)	6 tests
P0-3	cat f1.txt f2.txt → rtk read f1.txt f2.txt → crash	try_rewrite_file_cmd blindly replaced cat with rtk read regardless of arg count	Count non-flag arguments; skip rewrite if != 1 file, also skip cat - (stdin) (hook/files.rs)	5 tests

Consistency with existing RTK patterns:

• P0-1: gh_cmd.rs already has should_passthrough_run_view() checking --json — same pattern
• P0-2: git.rs receives args via clap trailing_var_arg and passes to Command::new("git") — RTK never sees global flags, so stripping is correct
• P0-3: read.rs and main.rs define file: PathBuf (singular) — rtk read only accepts one file

3. Keep bash hook as default, add --native-hook opt-in

Per @pszymkowiak's recommendation: the native hook needs more battle-testing before becoming the default.

Before (this PR): rtk init -g → native hook (rtk hook-rewrite), auto-migrates bash hook
After: rtk init -g → bash hook (stable default), rtk init -g --native-hook → native hook (opt-in)

Scenario	Behavior
rtk init -g (Unix)	Installs bash hook (~/.claude/hooks/rtk-rewrite.sh) — same as upstream
rtk init -g --native-hook	Installs native hook (rtk hook-rewrite), migrates old bash hook
rtk init -g (Windows, no --native-hook)	Falls back to --claude-md mode with message
rtk init -g --native-hook (Windows)	Installs native hook (cross-platform)
rtk init --show	Displays hook type (bash or native) neutrally
rtk init -g --uninstall	Removes both hook types

4. Code quality fixes

• Renamed _match_cmd → match_cmd (variable is used, underscore was misleading)
• Used strip_prefix instead of manual slice indexing for cat arg parsing
• Simplified redundant hook_already_present logic (3 conditions → same coverage)
• Added edge case test: cat - (stdin) → no rewrite
• Added documentation test: unknown git global flags → safe fallback (no rewrite)

Quality gate

Check	Result
cargo fmt --all --check	PASS
cargo clippy --all-targets	PASS — 0 new warnings
cargo test --all	PASS — 524 tests, 0 failures
Hook tests specifically	88 tests (was 71 before, +17 new)

[pszymkowiak]

Thanks for fixing the previous P0 bugs — all three confirmed fixed, and the architecture is clean.

However, two new P1 bugs were introduced:

P1-1: git -C flag stripped silently
git -C /other/repo status is rewritten to rtk git status, which runs in the wrong directory with no warning. Fix: return no rewrite when -C is present.

P1-2: grep -r rewrite breaks at runtime
grep -r TODO . → rtk grep -r TODO . fails immediately with a clap error — rtk grep expects the pattern first, not flags. This is a copy of the same bug that exists in the bash hook.

This is the 3rd review cycle on this PR. Before submitting the next update, could you please run the full hook test suite manually?

HOOK=hooks/rtk-rewrite.sh bash hooks/test-rtk-rewrite.sh

It covers 57 commands and would have caught both issues above. We can't merge a hook that rewrites 500+ commands per session without that baseline passing.

[ayoub-khemissi]

P1 Fixes — Verification Report

Summary

Both P1 regressions from the previous review are now resolved in commit 27958f5.

---

P1-1: git -C /path status — silent wrong directory

Root cause: GIT_GLOBAL_FLAGS_RE regex was stripping -C <path> from the rewritten command. The -C flag tells git which directory to operate in — removing it silently runs the command in the wrong directory.

Fix (src/hook/git.rs): Early-return None when -C is detected. The command runs unmodified through native git (no rewrite = no risk of wrong directory). Other cosmetic flags (--no-pager, --bare, --no-optional-locks) are still stripped safely.

// Before: -C silently stripped → wrong directory
"git -C /path status" → "rtk git status"  // ❌ operates on CWD, not /path

// After: skip rewrite entirely when -C present
"git -C /path status" → None (no rewrite)  // ✅ runs original git command

Tests added (3 new):

• test_git_dash_c_path_no_rewrite — status
• test_git_dash_c_path_log_no_rewrite — log
• test_git_dash_c_path_diff_no_rewrite — diff with relative path

Note: lowercase -c key=val (config override) is still stripped — it's cosmetic and doesn't change directory context.

---

P1-2: grep -r TODO . — clap argument ordering error

Root cause: The hook did a naive prefix replacement (grep → rtk grep) without considering argument order. RTK's clap definition expects PATTERN PATH [-- extra_args...] but real-world grep usage puts flags first: grep -r -i PATTERN .. Clap sees -r where it expects a positional arg and fails.

Fix (src/hook/files.rs): Added reorder_grep_args() function that:

1. Parses tokens into flags vs positionals
2. Handles flags with values (-A 3, --include *.rs) — consumes next token
3. Handles boolean flags (-r, -i, -rn)
4. Handles -- separator
5. Reconstructs as rtk grep PATTERN PATH -- FLAGS

// Before: clap error (flag before positional)
"grep -r TODO ."     → "rtk grep -r TODO ."      // ❌ clap: unexpected argument '-r'

// After: args reordered for clap compatibility
"grep -r TODO ."     → "rtk grep TODO . -- -r"    // ✅
"grep -r -i pat src" → "rtk grep pat src -- -r -i" // ✅
"grep -A 3 pat ."   → "rtk grep pat . -- -A 3"    // ✅
"grep TODO src/"     → "rtk grep TODO src/"         // ✅ (no flags = no --)
"rg -i pattern ."   → "rtk grep pattern . -- -i"   // ✅ (rg also handled)

Tests added (7 new):

• test_grep_flags_reordered — -r flag
• test_grep_multiple_flags_reordered — -r -i combined
• test_grep_combined_flags_reordered — -rn combined flag
• test_rg_flags_reordered — rg with -i
• test_grep_flag_with_value — -A 3 (value-consuming flag)
• test_grep_no_flags_no_separator — no flags case
• test_rg_no_flags_no_separator — rg no flags case

---

Quality Gates

Check	Result
cargo fmt --all --check	✅ Clean
cargo clippy --all-targets (hook/)	✅ Zero warnings
cargo test --all	✅ 535 passed, 0 failed
HOOK=hooks/rtk-rewrite.sh bash hooks/test-rtk-rewrite.sh	✅ 52/61 passed (9 pre-existing failures¹)

¹ Pre-existing failures unrelated to P1 changes:

• 3× find/tree/wget: bash hook rewrites them but test expects no rewrite (test/hook mismatch)
• 6× audit logging: feature not implemented in bash hook

Files Changed

File	Change
src/hook/git.rs	Early-return None for -C flag + 3 tests
src/hook/files.rs	reorder_grep_args() parser + 7 tests

[FlorianBruniaux]

Hi @ayoub-khemissi! PR #241 (rtk rewrite) just merged and touched the hook system significantly — this will likely create conflicts with your native cross-platform hooks PR. Could you rebase and check the conflict areas? The feature is valuable and we want to move it forward.

[ayoub-khemissi]

Rebased on upstream/master (includes PR #241 rtk rewrite)

Rebased on latest upstream/master as requested by @FlorianBruniaux. All conflicts resolved cleanly.

Conflict areas resolved

File	Resolution
src/main.rs	Kept HookAudit + Rewrite (upstream) alongside HookRewrite (native)
src/init.rs	Merged bash hook (default) + native hook (--native-hook opt-in), kept integrity checks
src/discover/registry.rs	Removed inlined PATTERNS/RULES (already in rules.rs since PR #241)
Docs (ARCHITECTURE, CLAUDE, README)	Kept upstream versions (0.24.0, 55 modules)
.github/workflows/validate-docs.yml	Kept thin delegator check from PR #241

Post-rebase fix

• Added #[cfg(unix)] on test_hook_has_guards — REWRITE_HOOK constant is now Unix-only after the --native-hook refactor

Quality gates

Check	Result
cargo fmt --all --check	✅ Clean
cargo clippy --all-targets	✅ 0 errors
cargo test --all	✅ 712 passed, 0 failed, 2 ignored
cargo test --all -- --ignored	✅ 2 integration tests pass
cargo build --release	✅ 0 errors

Ready for review.

[ala-dojo]

Hi, I opened a discussion documenting this limitation:

[CLAassistant]

All committers have signed the CLA.

[Warrio111]

Looking for this PR 🧐, @ayoub-khemissi

[pszymkowiak]

Hi! Two things needed before we can review:

1. Retarget to develop — this PR targets master, but all PRs should target develop. You can change the base branch in the PR settings (right sidebar).
2. Sign the CLA — if not already done, please sign at https://cla-assistant.io/rtk-ai/rtk

Thanks!

[aeppling]

Hey

We are cleaning up the codebase and improving the project structure for better onboarding. As part of this effort, PR #826 reorganizes src/ from a flat layout into subfolders.

No logic changes — only file moves and import path updates.

What you need to do

Rebase your branch on develop when receiving this comment:

git fetch origin && git rebase origin/develop

Git detects renames automatically. If you get import conflicts, update the paths:

use crate::git;        // now: use crate::cmds::git::git;
use crate::tracking;   // now: use crate::core::tracking;
use crate::config;     // now: use crate::core::config;
use crate::init;       // now: use crate::hooks::init;
use crate::gain;       // now: use crate::analytics::gain;

Need help rebasing? Tag @aeppling

[ayoub-khemissi]

This PR has been superseded by #1090, which takes a cleaner approach based on the review feedback here.

Why a new PR instead of rebasing: upstream develop has changed significantly since this PR was opened (registry-based rewrite system in discover/registry.rs, codebase reorganization into subfolders, native hook processing via rtk hook copilot). The 8 per-language modules in src/hook/ are now fully superseded by the registry. Rebasing 9 commits over this produced modify/delete conflicts on the first commit — not viable.

What #1090 does: fresh branch from develop, reuses the existing rtk hook copilot command, adds only the --native-hook flag to rtk init for cross-platform (Windows) support. 3 files, 500 LOC vs 14 files, 1905 LOC here.

I'll leave this PR open for you to close at your discretion.

[aeppling]

Thanks for contributing @ayoub-khemissi — this was the original comprehensive native hook implementation (1900+ LOC) and it pioneered the approach that master eventually adopted.

This is now superseded by the v0.37.x releases: master ships src/hooks/hook_cmd.rs with multi-agent support (Claude, Cursor, Copilot, Gemini) and registry-based rewriting. Closing as resolved.