diff --git a/.claude/global_hooks/auto_fix_diagnostics.py b/.claude/global_hooks/auto_fix_diagnostics.py
deleted file mode 100644
index 7e0eb4ab..00000000
--- a/.claude/global_hooks/auto_fix_diagnostics.py
+++ /dev/null
@@ -1,310 +0,0 @@
-#!/usr/bin/env python3
-"""
-Silent Auto-fix Hook - Runs ACTUAL validation and tells Claude to fix silently.
-
-Key behaviors:
-- Runs real linters (ruff, py_compile) not just pattern lists
-- Validates JSON with json.load()
-- Outputs via additionalContext so Claude sees errors
-- Claude fixes silently without announcing
-- Simple indicator for user console
-- Smart batching per-file
-
-Version: 4.3.0
-"""
-
-import json
-import sys
-import subprocess
-from pathlib import Path
-
-EDIT_TOOLS = ["Edit", "Write", "MultiEdit", "NotebookEdit"]
-LAST_FILE_PATH = Path(__file__).parent / ".last_diagnostics_file"
-SKIP_EXTENSIONS = {".md", ".txt", ".log", ".csv", ".html"}
-
-# AIPass-specific Python patterns to check
-PYTHON_PATTERNS = {
-    "bad_optional": {
-        "pattern": ": str = None",
-        "message": "Optional param should use 'str | None = None' pattern"
-    },
-    "logger_debug": {
-        "pattern": "logger.debug(",
-        "message": "Use logger.info for SystemLogger (logger.debug not supported)"
-    },
-    "return_error_msg": {
-        "pattern": "return error_msg",
-        "message": "Return None for error states, not error_msg string"
-    },
-    "open_no_encoding": {
-        "pattern": "open(",
-        "requires_missing": "encoding=",
-        "message": "open() without encoding='utf-8'"
-    },
-    "log_not_log_operation": {
-        "pattern": ".log(",
-        "message": "Use log_operation() with success/error params, not .log()"
-    },
-    "dict_none_no_check": {
-        "pattern": "Dict | None",
-        "message": "Dict | None return: Add None check before using (if result is None: return)"
-    }
-}
-
-# JSON-specific patterns for emoji corruption
-JSON_CORRUPTION_CHARS = ['\ufffd', '\x00']
-
-
-def run_python_checks(file_path: str) -> list[str]:
-    """Run actual Python validation - returns list of errors."""
-    errors = []
-
-    # 1. Syntax check with py_compile
-    try:
-        result = subprocess.run(
-            [sys.executable, "-m", "py_compile", file_path],
-            capture_output=True,
-            text=True,
-            timeout=5
-        )
-        if result.returncode != 0:
-            errors.append(f"SYNTAX: {result.stderr.strip()}")
-    except Exception:
-        pass
-
-    # 2. Ruff check (if available) - fast linter
-    try:
-        result = subprocess.run(
-            ["ruff", "check", "--select=E,F,W", "--output-format=text", file_path],
-            capture_output=True,
-            text=True,
-            timeout=10
-        )
-        if result.stdout.strip():
-            for line in result.stdout.strip().split("\n")[:5]:  # Max 5 errors
-                errors.append(f"LINT: {line}")
-    except FileNotFoundError:
-        pass  # ruff not installed
-    except Exception:
-        pass
-
-    # 3. AIPass-specific pattern checks
-    try:
-        content = Path(file_path).read_text(encoding="utf-8")
-        lines = content.split("\n")
-
-        for check in PYTHON_PATTERNS.values():
-            pattern = check["pattern"]
-            message = check["message"]
-            requires_missing = check.get("requires_missing")
-
-            # For patterns that require something to be missing
-            if requires_missing:
-                if pattern in content and requires_missing not in content:
-                    errors.append(f"PATTERN: {message}")
-                continue
-
-            # Standard pattern check - scan lines
-            for line in lines:
-                stripped = line.strip()
-                # Skip comments and strings
-                if stripped.startswith(("#", '"', "'")):
-                    continue
-                # Skip if pattern appears in a string on this line
-                if f'"{pattern}' in line or f"'{pattern}" in line:
-                    continue
-                if pattern in line:
-                    errors.append(f"PATTERN: {message}")
-                    break  # One error per pattern type
-    except Exception:
-        pass
-
-    return errors
-
-
-def run_json_checks(file_path: str) -> list[str]:
-    """Run actual JSON validation - returns list of errors."""
-    errors = []
-
-    try:
-        content = Path(file_path).read_text(encoding="utf-8")
-
-        # Check for emoji corruption before parsing
-        for char in JSON_CORRUPTION_CHARS:
-            if char in content:
-                errors.append(f"EMOJI CORRUPTION: Found corrupted character '{repr(char)}' - check allowed_emojis arrays")
-                break
-
-        # Try to parse JSON
-        try:
-            data = json.loads(content)
-
-            # Check for corruption in emoji arrays specifically
-            if isinstance(data, dict):
-                for key in ['allowed_emojis', 'emojis', 'emoji_list']:
-                    if key in data and isinstance(data[key], list):
-                        for item in data[key]:
-                            if isinstance(item, str) and len(item) == 1:
-                                if ord(item) < 128 and item not in '\u2713\u2717':
-                                    errors.append(f"EMOJI CORRUPTION: Suspicious char '{item}' in {key} - may be corrupted emoji")
-                                    break
-
-        except json.JSONDecodeError as e:
-            errors.append(f"JSON SYNTAX: {e.msg} at line {e.lineno}")
-
-    except Exception as e:
-        errors.append(f"READ ERROR: {e!s}")
-
-    return errors
-
-
-def run_seedgo_checklist(file_path: str) -> list[str]:
-    """Run seedgo standards checklist — returns violations only."""
-    # Skip Claude hooks - they don't follow project standards
-    if '/.claude/hooks/' in file_path:
-        return []
-
-    try:
-        result = subprocess.run(
-            ["drone", "@seedgo", "checklist", file_path],
-            capture_output=True,
-            text=True,
-            timeout=15,
-            cwd=str(Path.home() / "Projects" / "AIPass")
-        )
-
-        if result.returncode != 0:
-            return []  # Command failed, skip
-
-        violations = []
-        current_standard = None
-
-        for line in result.stdout.split("\n"):
-            line = line.strip()
-
-            # Checklist output format: "✗ standard_name: detail"
-            if line.startswith("\u2717"):
-                violation = line[1:].strip()
-                if violation:
-                    violations.append(violation)
-
-        return violations[:5]  # Top 5 only
-
-    except FileNotFoundError:
-        return []  # drone not available
-    except Exception:
-        return []
-
-
-def should_skip_file(file_path: str) -> bool:
-    """Check if file should be skipped."""
-    if not file_path:
-        return True
-    ext = Path(file_path).suffix.lower()
-    return ext in SKIP_EXTENSIONS
-
-
-def is_same_file_as_last(file_path: str) -> bool:
-    """Smart batching - skip if same file as last check."""
-    try:
-        if LAST_FILE_PATH.exists():
-            last = LAST_FILE_PATH.read_text(encoding="utf-8").strip()
-            if last == file_path:
-                return True
-        LAST_FILE_PATH.write_text(file_path, encoding="utf-8")
-    except Exception:
-        pass
-    return False
-
-
-def main():
-    """Main hook entry point."""
-    try:
-        input_data = json.load(sys.stdin)
-        tool_name = input_data.get("tool_name", "")
-        tool_input = input_data.get("tool_input", {})
-        file_path = tool_input.get("file_path", "")
-
-        # Only process edit tools
-        if tool_name not in EDIT_TOOLS:
-            return
-
-        # Skip non-code files
-        if should_skip_file(file_path):
-            return
-
-        # Smart batching - don't re-check same file
-        if is_same_file_as_last(file_path):
-            return
-
-        # Determine file type and run checks
-        errors = []
-        file_type = ""
-
-        if file_path.endswith(".py"):
-            file_type = "Python"
-            errors = run_python_checks(file_path)
-            # Seedgo standards checklist (Python files only)
-            seedgo_violations = run_seedgo_checklist(file_path)
-            for v in seedgo_violations:
-                errors.append(f"SEEDGO: {v}")
-
-        elif file_path.endswith(".json"):
-            file_type = "JSON"
-            errors = run_json_checks(file_path)
-        else:
-            return  # No validation for other types yet
-
-        # Build context message
-        context = ""
-        ide_instruction = f"\n\nAlso run mcp__ide__getDiagnostics on {file_path} to check for type errors. Fix any errors found silently."
-
-        if errors:
-            error_text = "\n".join(f"  - {e}" for e in errors)
-            context = f"""[AUTO-FIX REQUIRED] {len(errors)} validation error(s) in {Path(file_path).name}:
-{error_text}
-
-MANDATORY: You MUST fix every error listed above in {Path(file_path).name} before proceeding with any other work. Edit the file now to resolve these issues. Do not skip, defer, or ignore — fix them immediately, then continue with your task."""
-
-        # For Python files, also check IDE diagnostics for type errors
-        if file_path.endswith(".py"):
-            if errors:
-                context += ide_instruction
-            else:
-                # No other errors, but still check IDE diagnostics
-                context = f"[TYPE-CHECK] Run mcp__ide__getDiagnostics on {file_path} and fix any type errors silently."
-                errors = ["IDE diagnostics check requested"]
-
-            output = {
-                "hookSpecificOutput": {
-                    "hookEventName": "PostToolUse",
-                    "additionalContext": context
-                },
-                "systemMessage": f"[AUTO-FIX] {len(errors)} issue(s) — fix before continuing"
-            }
-            print(json.dumps(output))
-            # Exit 0 so JSON additionalContext is delivered to the model
-        elif errors:
-            # JSON or other file with errors
-            output = {
-                "hookSpecificOutput": {
-                    "hookEventName": "PostToolUse",
-                    "additionalContext": context
-                },
-                "systemMessage": f"[AUTO-FIX] {len(errors)} issue(s) — fix before continuing"
-            }
-            print(json.dumps(output))
-            # Exit 0 so JSON additionalContext is delivered to the model
-        else:
-            # No errors - just tiny indicator
-            output = {
-                "systemMessage": "[diagnostics] ok"
-            }
-            print(json.dumps(output))
-
-    except Exception:
-        pass  # Silent fail
-
-
-if __name__ == "__main__":
-    main()
diff --git a/.claude/global_hooks/hook_logger.sh b/.claude/global_hooks/hook_logger.sh
deleted file mode 100755
index aa7598b1..00000000
--- a/.claude/global_hooks/hook_logger.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/bash
-# Log hook activity for statusline display
-# Usage: source from hook commands or call directly
-# hook_logger.sh <hook_name>
-echo "$(date +%s) $1" > /tmp/aipass-hook-last
diff --git a/.claude/global_hooks/notification_sound.py b/.claude/global_hooks/notification_sound.py
deleted file mode 100644
index 3492e707..00000000
--- a/.claude/global_hooks/notification_sound.py
+++ /dev/null
@@ -1,37 +0,0 @@
-#!/usr/bin/env python3
-"""Notification Hook — Plays sound when AI needs permission."""
-
-import json
-import sys
-import subprocess
-from pathlib import Path
-
-SOUNDS_DIR = Path(__file__).parent.parent / "sounds"
-SOUND_FILE = SOUNDS_DIR / "mixkit-clear-announce-tones-2861.wav"
-
-
-def play_sound() -> None:
-    if not SOUND_FILE.exists():
-        return
-    try:
-        subprocess.Popen(
-            ["aplay", "-q", str(SOUND_FILE)],
-            stdout=subprocess.DEVNULL,
-            stderr=subprocess.DEVNULL,
-        )
-    except Exception:
-        pass
-
-
-def main():
-    try:
-        hook_data = json.loads(sys.stdin.read())
-        if hook_data.get("hook_event_name") == "Notification":
-            play_sound()
-    except Exception:
-        pass
-    sys.exit(0)
-
-
-if __name__ == "__main__":
-    main()
diff --git a/.claude/global_hooks/statusline.sh b/.claude/global_hooks/statusline.sh
deleted file mode 100755
index ebd0530b..00000000
--- a/.claude/global_hooks/statusline.sh
+++ /dev/null
@@ -1,125 +0,0 @@
-#!/bin/bash
-# AIPass statusline — pretty, context-aware
-input=$(cat)
-
-# Extract fields
-dir=$(echo "$input" | jq -r '.workspace.current_dir // ""')
-model=$(echo "$input" | jq -r '.model.display_name // "?"')
-ctx=$(echo "$input" | jq -r '.context_window.remaining_percentage // empty')
-cost=$(echo "$input" | jq -r '.cost.total_cost_usd // empty')
-lines_add=$(echo "$input" | jq -r '.cost.total_lines_added // 0')
-lines_rm=$(echo "$input" | jq -r '.cost.total_lines_removed // 0')
-session=$(echo "$input" | jq -r '.session_name // empty')
-
-# Colors
-RST='\033[0m'
-DIM='\033[2m'
-BOLD='\033[1m'
-GREEN='\033[32m'
-YELLOW='\033[33m'
-RED='\033[31m'
-CYAN='\033[36m'
-MAGENTA='\033[35m'
-WHITE='\033[97m'
-
-# Shorten directory — extract branch name if inside AIPass
-branch=""
-if [[ "$dir" == *"/src/aipass/"* ]]; then
-    branch=$(echo "$dir" | sed 's|.*/src/aipass/||' | cut -d/ -f1)
-elif [[ "$dir" == *"/src/commons"* ]]; then
-    branch="commons"
-elif [[ "$dir" == *"/src/skills"* ]]; then
-    branch="skills"
-elif [[ "$dir" == *"/AIPass"* ]]; then
-    branch="root"
-fi
-
-# Context color — green > 50%, yellow 20-50%, red < 20%
-ctx_color="$GREEN"
-if [ -n "$ctx" ]; then
-    if [ "$ctx" -lt 20 ] 2>/dev/null; then
-        ctx_color="$RED"
-    elif [ "$ctx" -lt 50 ] 2>/dev/null; then
-        ctx_color="$YELLOW"
-    fi
-fi
-
-# Build context bar (10 chars wide)
-bar=""
-if [ -n "$ctx" ]; then
-    used=$((100 - ctx))
-    filled=$((used / 10))
-    empty=$((10 - filled))
-    bar="${DIM}["
-    for ((i=0; i<filled; i++)); do bar+="█"; done
-    for ((i=0; i<empty; i++)); do bar+="░"; done
-    bar+="]${RST}"
-fi
-
-# Shorten model name
-short_model=$(echo "$model" | sed 's/Claude //')
-
-# Git branch
-git_branch=$(git -C "$dir" branch --show-current 2>/dev/null)
-
-# Build output
-out=""
-
-# Branch or directory
-if [ -n "$branch" ]; then
-    out+="${CYAN}@${branch}${RST}"
-else
-    short_dir=$(echo "$dir" | sed "s|$HOME|~|" | awk -F/ '{if(NF>=2) print $(NF-1)"/"$NF; else print $NF}')
-    out+="${DIM}${short_dir}${RST}"
-fi
-
-# Git branch
-if [ -n "$git_branch" ]; then
-    out+=" ${DIM}(${RST}${YELLOW}${git_branch}${RST}${DIM})${RST}"
-fi
-
-# Separator
-out+=" ${DIM}│${RST} "
-
-# Model
-out+="${MAGENTA}${short_model}${RST}"
-
-# Separator
-out+=" ${DIM}│${RST} "
-
-# Context
-if [ -n "$ctx" ]; then
-    out+="${ctx_color}${ctx}%${RST} ${bar}"
-else
-    out+="${DIM}...${RST}"
-fi
-
-# Cost (if any)
-if [ -n "$cost" ] && [ "$cost" != "0" ]; then
-    cost_fmt=$(printf "%.2f" "$cost" 2>/dev/null || echo "$cost")
-    out+=" ${DIM}│${RST} ${DIM}\$${cost_fmt}${RST}"
-fi
-
-# Lines changed
-if [ "$lines_add" -gt 0 ] 2>/dev/null || [ "$lines_rm" -gt 0 ] 2>/dev/null; then
-    out+=" ${DIM}│${RST} ${GREEN}+${lines_add}${RST}${DIM}/${RST}${RED}-${lines_rm}${RST}"
-fi
-
-# Session name if set
-if [ -n "$session" ]; then
-    out=" ${DIM}[${RST}${WHITE}${session}${RST}${DIM}]${RST} ${out}"
-fi
-
-# Hook activity — show last hook if fired within 3 seconds
-HOOK_FILE="/tmp/aipass-hook-last"
-if [ -f "$HOOK_FILE" ]; then
-    hook_data=$(cat "$HOOK_FILE" 2>/dev/null)
-    hook_ts=$(echo "$hook_data" | cut -d' ' -f1)
-    hook_name=$(echo "$hook_data" | cut -d' ' -f2-)
-    now=$(date +%s)
-    if [ -n "$hook_ts" ] && [ $((now - hook_ts)) -le 3 ] 2>/dev/null; then
-        out+=" ${DIM}│${RST} ${DIM}hook:${RST}${YELLOW}${hook_name}${RST}"
-    fi
-fi
-
-printf '%b' "$out"
diff --git a/.claude/global_hooks/stop_sound.py b/.claude/global_hooks/stop_sound.py
deleted file mode 100644
index 59236ff6..00000000
--- a/.claude/global_hooks/stop_sound.py
+++ /dev/null
@@ -1,38 +0,0 @@
-#!/usr/bin/env python3
-"""Stop Hook — Plays achievement bell when AI finishes responding."""
-
-import json
-import sys
-import subprocess
-from pathlib import Path
-
-SOUNDS_DIR = Path(__file__).parent.parent / "sounds"
-SOUND_FILE = SOUNDS_DIR / "mixkit-achievement-bell-600.wav"
-
-
-def play_sound() -> None:
-    if not SOUND_FILE.exists():
-        return
-    try:
-        subprocess.Popen(
-            ["aplay", "-q", str(SOUND_FILE)],
-            stdout=subprocess.DEVNULL,
-            stderr=subprocess.DEVNULL,
-        )
-    except Exception:
-        pass
-
-
-def main():
-    try:
-        hook_data = json.loads(sys.stdin.read())
-        if hook_data.get("hook_event_name") == "Stop":
-            if not hook_data.get("stop_hook_active", False):
-                play_sound()
-    except Exception:
-        pass
-    sys.exit(0)
-
-
-if __name__ == "__main__":
-    main()
diff --git a/.claude/global_hooks/subagent_stop_gate.py b/.claude/global_hooks/subagent_stop_gate.py
deleted file mode 100644
index 2fd640df..00000000
--- a/.claude/global_hooks/subagent_stop_gate.py
+++ /dev/null
@@ -1,100 +0,0 @@
-#!/usr/bin/env python3
-"""
-SubagentStop Gate — Checks files modified by subagents before allowing them to finish.
-
-Runs seedgo checklist + basic validation on any .py files the subagent touched.
-If violations found, blocks the stop and tells the subagent to fix them.
-
-Version: 1.0.0
-"""
-
-import json
-import sys
-import subprocess
-from pathlib import Path
-
-AIPASS_ROOT = Path.home() / "Projects" / "AIPass"
-
-
-def get_modified_py_files() -> list[str]:
-    """Get Python files modified in the working tree (unstaged + staged)."""
-    try:
-        result = subprocess.run(
-            ["git", "diff", "--name-only", "HEAD"],
-            capture_output=True, text=True, timeout=5,
-            cwd=str(AIPASS_ROOT)
-        )
-        files = []
-        for line in result.stdout.strip().split("\n"):
-            line = line.strip()
-            if line.endswith(".py") and not line.startswith(".claude/"):
-                full = AIPASS_ROOT / line
-                if full.exists():
-                    files.append(str(full))
-        return files
-    except Exception:
-        return []
-
-
-def run_seedgo_checklist(file_path: str) -> list[str]:
-    """Run seedgo checklist on a single file."""
-    if "/.claude/" in file_path:
-        return []
-    try:
-        result = subprocess.run(
-            ["drone", "@seedgo", "checklist", file_path],
-            capture_output=True, text=True, timeout=15,
-            cwd=str(AIPASS_ROOT)
-        )
-        if result.returncode != 0:
-            return []
-        violations = []
-        for line in result.stdout.split("\n"):
-            line = line.strip()
-            if line.startswith("\u2717"):
-                v = line[1:].strip()
-                if v:
-                    violations.append(v)
-        return violations[:5]
-    except Exception:
-        return []
-
-
-def main():
-    try:
-        input_data = json.load(sys.stdin)
-
-        modified = get_modified_py_files()
-        if not modified:
-            return  # Nothing to check
-
-        all_violations = {}
-        for f in modified:
-            vs = run_seedgo_checklist(f)
-            if vs:
-                name = Path(f).name
-                all_violations[name] = vs
-
-        if not all_violations:
-            return  # All clear
-
-        # Build the block reason
-        lines = ["Standards violations found in files you modified:\n"]
-        for fname, vs in all_violations.items():
-            lines.append(f"  {fname}:")
-            for v in vs:
-                lines.append(f"    - {v}")
-        lines.append("\nFix these violations before finishing.")
-
-        output = {
-            "decision": "block",
-            "reason": "\n".join(lines)
-        }
-        print(json.dumps(output))
-
-    except Exception:
-        pass  # Silent fail — don't block on errors
-
-
-if __name__ == "__main__":
-    main()
diff --git a/.claude/global_hooks/tool_use_sound.py b/.claude/global_hooks/tool_use_sound.py
deleted file mode 100644
index fe09c5b3..00000000
--- a/.claude/global_hooks/tool_use_sound.py
+++ /dev/null
@@ -1,40 +0,0 @@
-#!/usr/bin/env python3
-"""Tool Use Hook — Plays key press sound when AI uses tools."""
-
-import json
-import sys
-import subprocess
-from pathlib import Path
-
-SOUNDS_DIR = Path(__file__).parent.parent / "sounds"
-SOUND_FILE = SOUNDS_DIR / "mixkit-atm-cash-machine-key-press-2841.wav"
-
-SOUND_TOOLS = ["Bash", "Edit", "MultiEdit", "Write", "Read", "Grep", "Glob"]
-
-
-def play_sound() -> None:
-    if not SOUND_FILE.exists():
-        return
-    try:
-        subprocess.Popen(
-            ["aplay", "-q", str(SOUND_FILE)],
-            stdout=subprocess.DEVNULL,
-            stderr=subprocess.DEVNULL,
-        )
-    except Exception:
-        pass
-
-
-def main():
-    try:
-        hook_data = json.loads(sys.stdin.read())
-        if hook_data.get("hook_event_name") == "PreToolUse":
-            if hook_data.get("tool_name", "") in SOUND_TOOLS:
-                play_sound()
-    except Exception:
-        pass
-    sys.exit(0)
-
-
-if __name__ == "__main__":
-    main()
diff --git a/.claude/worktrees/agent-aa2b7d43 b/.claude/worktrees/agent-aa2b7d43
deleted file mode 160000
index 98191fa9..00000000
--- a/.claude/worktrees/agent-aa2b7d43
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 98191fa97e9e91fd5dd1f0b12e23b97907dbdadc
diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 00000000..ade4769a
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1,2 @@
+# Include hooks directory for pip packaging
+recursive-include .claude/hooks *.py *.md
diff --git a/pyproject.toml b/pyproject.toml
index 1c1e8ea9..4a3bc2d9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -64,6 +64,9 @@ aipass = "aipass.cli:cli_entry"
 [tool.hatch.build.targets.wheel]
 packages = ["src/aipass"]
 
+[tool.hatch.build.targets.wheel.force-include]
+".claude/hooks" = "aipass/_hooks"
+
 [tool.pytest.ini_options]
 testpaths = ["tests", "src"]
 norecursedirs = ["templates", "*.egg-info", ".git", ".venv", "__pycache__"]
diff --git a/src/aipass/seedgo/tests/test_hooks_track_a.py b/src/aipass/seedgo/tests/test_hooks_track_a.py
new file mode 100644
index 00000000..23b6ff6d
--- /dev/null
+++ b/src/aipass/seedgo/tests/test_hooks_track_a.py
@@ -0,0 +1,384 @@
+"""Tests for Track A hook scripts — auto_fix_diagnostics, pre_edit_gate, subagent_stop_gate.
+
+# =================== META ====================
+# Name: test_hooks_track_a.py
+# Description: Track A hook tests — DPLAN-0139 coverage for auto_fix, pre_edit_gate, subagent_stop
+# Version: 1.0.0
+# Created: 2026-04-20
+# Modified: 2026-04-20
+# =============================================
+"""
+
+import importlib.util
+import io
+import json
+from pathlib import Path
+from unittest.mock import MagicMock, patch
+
+import pytest
+
+# ---------------------------------------------------------------------------
+# Helpers — hook loader
+# ---------------------------------------------------------------------------
+
+
+def _find_repo_root() -> Path:
+    """Walk up from this file to find the git repo root."""
+    current = Path(__file__).resolve().parent
+    for parent in (current, *current.parents):
+        if (parent / ".git").exists():
+            return parent
+    return Path(__file__).resolve().parents[4]  # fallback
+
+
+HOOKS_DIR = _find_repo_root() / ".claude" / "hooks"
+
+
+def _load_hook(name: str):
+    """Import a hook script by filename via importlib (outside package)."""
+    path = HOOKS_DIR / name
+    if not path.exists():
+        pytest.skip(f"Hook script not found: {path}")
+    spec = importlib.util.spec_from_file_location(name.replace(".py", ""), path)
+    assert spec is not None and spec.loader is not None
+    mod = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(mod)  # type: ignore[union-attr]
+    return mod
+
+
+# ---------------------------------------------------------------------------
+# auto_fix_diagnostics.py tests
+# ---------------------------------------------------------------------------
+
+
+def test_auto_fix_skips_non_edit_tool(capsys):
+    """stdin with tool_name=Read → no output (not an edit tool)."""
+    mod = _load_hook("auto_fix_diagnostics.py")
+    payload = json.dumps({"tool_name": "Read", "tool_input": {"file_path": "/tmp/foo.py"}})
+    with patch("sys.stdin", io.StringIO(payload)):
+        mod.main()
+    captured = capsys.readouterr()
+    assert captured.out == ""
+
+
+def test_auto_fix_skips_non_py_file(capsys):
+    """stdin with tool_name=Edit, file_path ending .md → no output (skipped extension)."""
+    mod = _load_hook("auto_fix_diagnostics.py")
+    payload = json.dumps({"tool_name": "Edit", "tool_input": {"file_path": "/tmp/foo.md"}})
+    with patch("sys.stdin", io.StringIO(payload)):
+        mod.main()
+    captured = capsys.readouterr()
+    assert captured.out == ""
+
+
+def test_auto_fix_does_not_crash_empty_stdin():
+    """Empty/malformed JSON on stdin → no exception raised."""
+    mod = _load_hook("auto_fix_diagnostics.py")
+    with patch("sys.stdin", io.StringIO("")):
+        mod.main()  # must not raise
+
+
+def test_auto_fix_does_not_crash_missing_fields():
+    """Valid JSON but no tool_name → no exception raised."""
+    mod = _load_hook("auto_fix_diagnostics.py")
+    payload = json.dumps({"some_other_key": "value"})
+    with patch("sys.stdin", io.StringIO(payload)):
+        mod.main()  # must not raise
+
+
+def test_auto_fix_silent_fix_label(tmp_path, capsys):
+    """When run_python_checks returns an error, output contains [SILENT-FIX] not [AUTO-FIX]."""
+    mod = _load_hook("auto_fix_diagnostics.py")
+
+    # Point to a real .py file so extension check passes
+    fake_py = tmp_path / "fake.py"
+    fake_py.write_text("x = 1\n", encoding="utf-8")
+
+    payload = json.dumps({"tool_name": "Edit", "tool_input": {"file_path": str(fake_py)}})
+
+    with (
+        patch("sys.stdin", io.StringIO(payload)),
+        patch.object(mod, "run_python_checks", return_value=["LINT: E501 line too long"]),
+        patch.object(mod, "run_seedgo_checklist", return_value=[]),
+        patch.object(mod, "run_pyright_check", return_value=([], False)),
+        patch.object(mod, "run_ruff_lint_structured", return_value=[]),
+        patch.object(mod, "save_diagnostics_state"),
+    ):
+        mod.main()
+
+    captured = capsys.readouterr()
+    assert captured.out.strip() != ""
+    output = json.loads(captured.out)
+    context = output["hookSpecificOutput"]["additionalContext"]
+    assert "[SILENT-FIX]" in context
+    assert "[AUTO-FIX]" not in context
+    assert "[SILENT-FIX]" in output["systemMessage"]
+
+
+def test_auto_fix_fallback_message_in_context(tmp_path, capsys):
+    """When pyright is unavailable (fallback_needed=True), context contains [FALLBACK] text."""
+    mod = _load_hook("auto_fix_diagnostics.py")
+
+    fake_py = tmp_path / "check.py"
+    fake_py.write_text("x = 1\n", encoding="utf-8")
+
+    payload = json.dumps({"tool_name": "Edit", "tool_input": {"file_path": str(fake_py)}})
+
+    with (
+        patch("sys.stdin", io.StringIO(payload)),
+        patch.object(mod, "run_python_checks", return_value=["LINT: E501 line too long"]),
+        patch.object(mod, "run_seedgo_checklist", return_value=[]),
+        patch.object(mod, "run_pyright_check", return_value=([], True)),
+        patch.object(mod, "run_ruff_lint_structured", return_value=[]),
+        patch.object(mod, "save_diagnostics_state"),
+    ):
+        mod.main()
+
+    captured = capsys.readouterr()
+    output = json.loads(captured.out)
+    context = output["hookSpecificOutput"]["additionalContext"]
+    assert "[FALLBACK]" in context
+    assert "mcp__ide__getDiagnostics" in context
+
+
+def test_auto_fix_fallback_stderr_announce(tmp_path, capsys):
+    """When fallback_needed=True, [FALLBACK ENGAGED] is printed to stderr."""
+    mod = _load_hook("auto_fix_diagnostics.py")
+
+    fake_py = tmp_path / "check2.py"
+    fake_py.write_text("x = 1\n", encoding="utf-8")
+
+    payload = json.dumps({"tool_name": "Edit", "tool_input": {"file_path": str(fake_py)}})
+
+    with (
+        patch("sys.stdin", io.StringIO(payload)),
+        patch.object(mod, "run_python_checks", return_value=[]),
+        patch.object(mod, "run_seedgo_checklist", return_value=[]),
+        patch.object(mod, "run_pyright_check", return_value=([], True)),
+        patch.object(mod, "run_ruff_lint_structured", return_value=[]),
+        patch.object(mod, "save_diagnostics_state"),
+    ):
+        mod.main()
+
+    captured = capsys.readouterr()
+    assert "[FALLBACK ENGAGED" in captured.err
+
+
+def test_run_pyright_check_returns_tuple_on_file_not_found():
+    """run_pyright_check returns ([], True) when pyright binary is missing."""
+    mod = _load_hook("auto_fix_diagnostics.py")
+    with patch("subprocess.run", side_effect=FileNotFoundError("pyright not found")):
+        result = mod.run_pyright_check("/tmp/some_file.py")
+    assert result == ([], True)
+
+
+def test_run_pyright_check_returns_false_on_timeout():
+    """run_pyright_check returns ([], False) on timeout — no fallback signal."""
+    import subprocess
+
+    mod = _load_hook("auto_fix_diagnostics.py")
+    with patch("subprocess.run", side_effect=subprocess.TimeoutExpired("pyright", 15)):
+        result = mod.run_pyright_check("/tmp/some_file.py")
+    assert result == ([], False)
+
+
+def test_run_pyright_check_skips_hook_files():
+    """run_pyright_check returns ([], False) for hook files without calling subprocess."""
+    mod = _load_hook("auto_fix_diagnostics.py")
+    mock_run = MagicMock()
+    with patch("subprocess.run", mock_run):
+        result = mod.run_pyright_check("/home/user/.claude/hooks/some_hook.py")
+    mock_run.assert_not_called()
+    assert result == ([], False)
+
+
+# ---------------------------------------------------------------------------
+# pre_edit_gate.py tests
+# (pre_edit_gate lives in ~/.claude/hooks — load from global location)
+# ---------------------------------------------------------------------------
+
+
+GLOBAL_HOOKS_DIR = Path.home() / ".claude" / "hooks"
+
+
+def _load_global_hook(name: str):
+    """Import a hook script from the global ~/.claude/hooks/ directory."""
+    path = GLOBAL_HOOKS_DIR / name
+    if not path.exists():
+        pytest.skip(f"Global hook script not found: {path}")
+    spec = importlib.util.spec_from_file_location(name.replace(".py", ""), path)
+    assert spec is not None and spec.loader is not None
+    mod = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(mod)  # type: ignore[union-attr]
+    return mod
+
+
+def test_gate_allows_no_state_file(tmp_path, capsys, monkeypatch):
+    """No state file present → no output (allow)."""
+    mod = _load_global_hook("pre_edit_gate.py")
+    monkeypatch.setattr(mod, "STATE_FILE", tmp_path / "no_such_state.json")
+
+    payload = json.dumps({"tool_name": "Edit", "tool_input": {"file_path": "/tmp/seedgo/foo.py"}})
+    with patch("sys.stdin", io.StringIO(payload)):
+        mod.main()
+
+    captured = capsys.readouterr()
+    assert captured.out == ""
+
+
+def test_gate_allows_same_file(tmp_path, capsys, monkeypatch):
+    """State has error for file A, editing file A → allow (no block output)."""
+    mod = _load_global_hook("pre_edit_gate.py")
+
+    errored_file = tmp_path / "foo.py"
+    errored_file.write_text("x = 1\n", encoding="utf-8")
+
+    state = {"file": str(errored_file), "errors": [{"line": 1, "message": "some error"}]}
+    state_file = tmp_path / "state.json"
+    state_file.write_text(json.dumps(state), encoding="utf-8")
+    monkeypatch.setattr(mod, "STATE_FILE", state_file)
+
+    payload = json.dumps({"tool_name": "Edit", "tool_input": {"file_path": str(errored_file)}})
+    with patch("sys.stdin", io.StringIO(payload)):
+        mod.main()
+
+    captured = capsys.readouterr()
+    assert captured.out == ""
+
+
+def test_gate_blocks_different_file_same_branch(tmp_path, capsys, monkeypatch):
+    """State has error for seedgo/foo.py, editing seedgo/bar.py → block + sys.exit(2)."""
+    mod = _load_global_hook("pre_edit_gate.py")
+
+    # Use real AIPass src paths so _get_branch works
+    aipass_src = Path("/home/patrick/Projects/AIPass/src/aipass")
+    errored_file = str(aipass_src / "seedgo" / "foo.py")
+    edit_target = str(aipass_src / "seedgo" / "bar.py")
+
+    state = {"file": errored_file, "errors": [{"line": 5, "message": "type error here"}]}
+    state_file = tmp_path / "state.json"
+    state_file.write_text(json.dumps(state), encoding="utf-8")
+    monkeypatch.setattr(mod, "STATE_FILE", state_file)
+
+    payload = json.dumps({"tool_name": "Edit", "tool_input": {"file_path": edit_target}})
+    with patch("sys.stdin", io.StringIO(payload)):
+        with pytest.raises(SystemExit) as exc_info:
+            mod.main()
+
+    assert exc_info.value.code == 2
+    captured = capsys.readouterr()
+    assert captured.out.strip() != ""
+    output = json.loads(captured.out)
+    assert output["decision"] == "block"
+
+
+def test_gate_allows_different_branch(tmp_path, capsys, monkeypatch):
+    """State has error for flow/foo.py, editing seedgo/bar.py → allow (different branches)."""
+    mod = _load_global_hook("pre_edit_gate.py")
+
+    aipass_src = Path("/home/patrick/Projects/AIPass/src/aipass")
+    errored_file = str(aipass_src / "flow" / "foo.py")
+    edit_target = str(aipass_src / "seedgo" / "bar.py")
+
+    state = {"file": errored_file, "errors": [{"line": 1, "message": "error in flow"}]}
+    state_file = tmp_path / "state.json"
+    state_file.write_text(json.dumps(state), encoding="utf-8")
+    monkeypatch.setattr(mod, "STATE_FILE", state_file)
+
+    payload = json.dumps({"tool_name": "Edit", "tool_input": {"file_path": edit_target}})
+    with patch("sys.stdin", io.StringIO(payload)):
+        mod.main()
+
+    captured = capsys.readouterr()
+    assert captured.out == ""
+
+
+def test_gate_does_not_crash_malformed_stdin(monkeypatch, tmp_path):
+    """Bad JSON on stdin → no exception raised."""
+    mod = _load_global_hook("pre_edit_gate.py")
+    monkeypatch.setattr(mod, "STATE_FILE", tmp_path / "no_state.json")
+
+    with patch("sys.stdin", io.StringIO("not json!!!!")):
+        mod.main()  # must not raise
+
+
+def test_gate_allows_non_edit_tool(tmp_path, capsys, monkeypatch):
+    """Non-edit tool_name → no output regardless of state."""
+    mod = _load_global_hook("pre_edit_gate.py")
+
+    aipass_src = Path("/home/patrick/Projects/AIPass/src/aipass")
+    errored_file = str(aipass_src / "seedgo" / "foo.py")
+    edit_target = str(aipass_src / "seedgo" / "bar.py")
+
+    state = {"file": errored_file, "errors": [{"line": 1, "message": "error"}]}
+    state_file = tmp_path / "state.json"
+    state_file.write_text(json.dumps(state), encoding="utf-8")
+    monkeypatch.setattr(mod, "STATE_FILE", state_file)
+
+    payload = json.dumps({"tool_name": "Read", "tool_input": {"file_path": edit_target}})
+    with patch("sys.stdin", io.StringIO(payload)):
+        mod.main()
+
+    captured = capsys.readouterr()
+    assert captured.out == ""
+
+
+# ---------------------------------------------------------------------------
+# subagent_stop_gate.py tests
+# ---------------------------------------------------------------------------
+
+
+def test_subagent_gate_no_crash_empty_stdin():
+    """Bad JSON on stdin → no exception raised."""
+    mod = _load_hook("subagent_stop_gate.py")
+    with patch("sys.stdin", io.StringIO("bad json")):
+        mod.main()  # must not raise
+
+
+def test_subagent_gate_no_crash_no_files(capsys):
+    """Valid stdin but no modified files → no exception, no block output."""
+    mod = _load_hook("subagent_stop_gate.py")
+    payload = json.dumps({"stop_hook_active": True})
+
+    with (
+        patch("sys.stdin", io.StringIO(payload)),
+        patch.object(mod, "get_modified_py_files", return_value=[]),
+    ):
+        mod.main()
+
+    captured = capsys.readouterr()
+    assert captured.out == ""
+
+
+def test_subagent_gate_no_block_when_no_violations(capsys):
+    """Modified files present but no seedgo violations → no block output."""
+    mod = _load_hook("subagent_stop_gate.py")
+    payload = json.dumps({"stop_hook_active": True})
+
+    with (
+        patch("sys.stdin", io.StringIO(payload)),
+        patch.object(mod, "get_modified_py_files", return_value=["/tmp/foo.py"]),
+        patch.object(mod, "run_seedgo_checklist", return_value=[]),
+    ):
+        mod.main()
+
+    captured = capsys.readouterr()
+    assert captured.out == ""
+
+
+def test_subagent_gate_blocks_on_violations(capsys):
+    """Modified files with seedgo violations → block decision in output."""
+    mod = _load_hook("subagent_stop_gate.py")
+    payload = json.dumps({"stop_hook_active": True})
+
+    with (
+        patch("sys.stdin", io.StringIO(payload)),
+        patch.object(mod, "get_modified_py_files", return_value=["/tmp/foo.py"]),
+        patch.object(mod, "run_seedgo_checklist", return_value=["open() without encoding='utf-8'"]),
+    ):
+        mod.main()
+
+    captured = capsys.readouterr()
+    assert captured.out.strip() != ""
+    output = json.loads(captured.out)
+    assert output["decision"] == "block"