feat: Phase 6 & 7 - Update Command + Polish & UX

[dwalleck]

Summary

This PR implements Phase 6 (Update Command) and Phase 7 (Polish & UX) of the Catalyst CLI project, adding comprehensive update functionality and significantly improving validation, error handling, and user experience.

Phase 6: Update Command ✅

Key Features:

• ✅ Version tracking with .catalyst-version file
• ✅ Hash-based skill update detection
• ✅ Smart modification detection (skips user-modified files)
• ✅ Wrapper script updates
• ✅ --force flag to override modification checks
• ✅ Comprehensive update reporting

Implementation:

• update() orchestration function with graceful degradation
• update_skills() with SHA256 hash comparison
• regenerate_hashes() for tracking updated files
• CLI integration with colored output
• 7 comprehensive unit tests

Phase 7: Polish & UX ✅

Addresses all PR #21 feedback:

1. Settings.json Parse Error Reporting (PR feat: Phase 4 - Validation & Status Command #21 feedback feat(phase-0): Add GitHub Actions CI workflow #2)

   • Modified validate_hooks() to capture and report parse errors
   • Added detailed error messages with JSON structure guidance
   • Suggests catalyst init --force or manual fix
   • Marks overall status as Error (not silent failure)

2. Skill Registration Validation (PR feat: Phase 4 - Validation & Status Command #21 feedback fix(phase-1.2): Replace SQL string interpolation with const strings #3)

   • Now properly parses skill-rules.json and checks actual registration
   • Uses HashSet to verify each skill directory is listed
   • Reports unregistered skills with helpful fix suggestions
   • Handles malformed JSON gracefully

3. Hook Validation Logic Documentation (PR feat: Phase 4 - Validation & Status Command #21 feedback Add Claude Code GitHub Workflow #1)

   • Added detailed comments explaining break statement behavior
   • Clarifies intentional single validation per config
   • Documents that multiple hooks can share same wrapper script
   • Decision: Option A - Keep current logic with better comments

Additional Improvements:

• ✅ Multi-directory support in skill-activation-prompt hook
• ✅ Legacy code cleanup (removed deprecated RustHooks directory)
• ✅ All error messages include context and suggested fixes
• ✅ Colored output with NO_COLOR support
• ✅ Professional init summary with dividers
• ✅ Comprehensive help text via Clap

Test Coverage

Phase 6:

• ✅ 7/7 update module tests pass
• ✅ Hash computation tests (success, not found, permission denied)
• ✅ Version file handling tests
• ✅ Skill file copy with error context
• ✅ Hash regeneration tests

Phase 7:

• ✅ 6/6 status module tests pass
• ✅ Settings parse error handling
• ✅ Skill registration validation
• ✅ Hook wrapper validation
• ✅ All tests pass across all modules

Breaking Changes

None. All changes are backwards compatible.

Migration Guide

No migration needed. Existing installations will automatically benefit from improved validation on next catalyst status run.

Test Plan

1. ✅ Build passes (cargo build --release)
2. ✅ All tests pass (cargo test)
3. ✅ Pre-commit hooks pass (formatting + clippy + build)
4. ✅ Multi-directory support verified
5. ✅ Error messages tested for clarity

Documentation

• ✅ Updated catalyst-cli-tasks.md with all implementation line references
• ✅ Added detailed code comments for PR feat: Phase 4 - Validation & Status Command #21 feedback items
• ✅ Function-level documentation for all new functions

Related Issues

Addresses feedback from PR #21 (3 items)

Next Steps

• Phase 8: Comprehensive testing across platforms
• Phase 9: Documentation updates

🤖 Generated with Claude Code

[claude]

PR Review: Phase 6 & 7 - Update Command + Polish & UX

Overall Assessment: ✅ APPROVED

This is an excellent implementation of Phases 6 and 7. The code quality is high, with comprehensive error handling, detailed comments, and thorough testing. The PR successfully addresses all three items of feedback from PR #21.

---

🎯 Strengths

1. Excellent Error Handling

• skill_activation_prompt.rs:12-36: Custom error types with error codes ([SA001]-[SA005]) make debugging much easier
• All errors include context (file paths, error details) and actionable recovery suggestions
• Error messages use the thiserror crate effectively with clear display implementations

2. Performance Optimization

• skill_activation_prompt.rs:59-101: Pre-compilation of regex patterns and keyword lowercasing is a smart optimization
• The code avoids repeated allocations by lowercasing once during compilation
• Intentional design choice to not deduplicate keywords (lines 84-89) is well-documented

3. PR #21 Feedback Implementation ✅

All three feedback items from PR #21 are properly addressed:

Feedback #1: Hook Validation Logic (status.rs:197-243)

• ✅ Added detailed comments explaining the break statement behavior
• ✅ Clarifies that multiple hooks can share the same wrapper script
• ✅ Documents intentional single validation per config

Feedback #2: Settings Parse Errors (status.rs:425-435)

• ✅ Modified validate_hooks() to capture and return parse errors
• ✅ Adds detailed error messages suggesting fixes
• ✅ Marks overall status as Error (not silent failure)

Feedback #3: Skill Registration (status.rs:313-391)

• ✅ Now properly parses skill-rules.json using HashSet
• ✅ Verifies each skill directory is listed in the rules
• ✅ Reports unregistered skills with helpful fix suggestions
• ✅ Handles malformed JSON gracefully

4. Security Considerations

• status.rs:618-628: Input validation on binary names prevents potential command injection
• Atomic file writes with fallback (init.rs patterns)
• Proper permission handling on Unix systems

5. Multi-Directory Support

• skill_activation_prompt.rs:205-230: Smart fallback logic checks cwd first, then CLAUDE_PROJECT_DIR
• Enables /add-dir workflow with different skill configurations
• Well-documented with debug logging

6. Comprehensive Testing

• 7 update module tests (all passing)
• 6 status module tests (all passing)
• Thorough unit test coverage including edge cases
• Tests use proper error scenarios (malformed JSON, invalid input)

---

🔍 Code Quality Observations

Excellent Practices

1. Documentation:

   • status.rs:313-318 has excellent comment explaining the improvement over simplified checks
   • Clear function-level documentation throughout

2. Tracing:

   • skill_activation_prompt.rs uses structured logging effectively
   • Error codes and context included in log messages

3. Type Safety:

   • Strong use of Result types throughout
   • Proper error propagation with context

4. Maintainability:

   • Clean separation of concerns (validation, fixing, reporting)
   • Helper functions are focused and testable

Minor Suggestions (Non-Blocking)

1. Duplicate Keyword Optimization (skill_activation_prompt.rs:84-94)

While the comment explains why duplicates aren't removed, consider this micro-optimization for the future:

// Current: O(n) keyword checks with potential duplicates
// Future consideration: Use HashSet for O(1) average case
let keywords_lower: HashSet<String> = triggers
    .keywords
    .iter()
    .map(|kw| kw.to_lowercase())
    .collect();

Reason: For skill-rules.json with many skills, this could provide measurable speedup. However, your current approach is perfectly acceptable for typical use cases (< 10 keywords).

2. Error Message Consistency (status.rs:509)

The suggested fix uses "catalyst update" but should probably be "catalyst init --force" for unregistered skills since they may be new additions:

// Consider: Different suggestions based on context
suggested_fix: Some(
    "Add skill to skill-rules.json manually, run 'catalyst init --force' to regenerate rules, or 'catalyst update' to sync".to_string()
)

3. Test Coverage Gap

The multi-directory support (skill_activation_prompt.rs:205-230) would benefit from a unit test:

#[test]
fn test_multi_directory_skill_rules_priority() {
    // Test that cwd takes precedence over CLAUDE_PROJECT_DIR
}

---

📋 Checklist Review

Phase 6 Tasks: ✅ All Complete

• Version tracking with .catalyst-version
• Hash-based skill update detection
• Smart modification detection
• Wrapper script updates
• --force flag implementation
• Comprehensive update reporting
• 7/7 tests passing

Phase 7 Tasks: ✅ All Complete

• PR feat: Phase 4 - Validation & Status Command #21 feedback Add Claude Code GitHub Workflow #1 addressed (hook validation comments)
• PR feat: Phase 4 - Validation & Status Command #21 feedback feat(phase-0): Add GitHub Actions CI workflow #2 addressed (settings parse errors)
• PR feat: Phase 4 - Validation & Status Command #21 feedback fix(phase-1.2): Replace SQL string interpolation with const strings #3 addressed (skill registration)
• Multi-directory support
• Legacy code cleanup
• Professional colored output
• Comprehensive help text

---

🚀 Next Steps

The implementation is solid. Here are suggested priorities for Phase 8:

1. Critical: Add integration test for multi-directory skill-rules.json detection
2. Important: Test WSL detection logic in CI
3. Nice-to-have: Consider keyword deduplication for future optimization

---

🎬 Conclusion

This PR demonstrates excellent software engineering practices:

• ✅ Clear, maintainable code with great comments
• ✅ Comprehensive error handling with user-friendly messages
• ✅ Thorough testing (13/13 tests passing)
• ✅ All PR feedback addressed properly
• ✅ Security considerations (input validation)
• ✅ Performance optimizations (regex pre-compilation)

Recommendation: APPROVE AND MERGE

Great work on Phases 6 & 7! The codebase is in excellent shape for Phase 8 (comprehensive testing).

---

Reviewed by: Claude Code
Review Date: 2025-11-11
Lines Changed: +248 / -2476 (excellent cleanup of legacy code)

[claude]

Code Review: Phase 6 & 7 - Update Command + Polish & UX

Overall Assessment

✅ LGTM - This is a well-executed PR that delivers on the promised features with good code quality. The implementation shows attention to detail, comprehensive testing, and clear documentation.

---

Strengths

1. Excellent Code Documentation

The code includes extensive inline comments explaining implementation decisions, especially for PR #21 feedback items:

• skill_activation_prompt.rs:84-90 - Clear explanation of why duplicate keywords aren't deduplicated
• status.rs:198-200 - Multi-hook validation logic is well-documented
• status.rs:313-318 - PR feat: Phase 4 - Validation & Status Command #21 feedback comment clearly references the improvement

2. Comprehensive Error Handling

• Settings.json Parse Errors (status.rs:181-190): Now properly captures and reports parse errors instead of failing silently
• Skill Registration Validation (status.rs:327-352): Uses proper JSON parsing with HashSet for efficient validation
• Error messages include context and actionable suggestions

3. Multi-Directory Support

The skill activation hook now supports multiple directories (skill_activation_prompt.rs:208-233):

• Prioritizes cwd for /add-dir support
• Falls back to CLAUDE_PROJECT_DIR
• Properly logs which path is being used

4. Input Validation

Security-conscious validation in status.rs:620-630:

// Validate binary name to prevent potential injection
if \!binary_name
    .chars()
    .all(|c| c.is_alphanumeric() || c == '-' || c == '_')
{
    return Err(CatalystError::InvalidConfig(...));
}

5. Extensive Test Coverage

• skill_activation_prompt.rs: 25 comprehensive tests covering edge cases
• status.rs: 6 tests covering validation logic
• Tests include malformed JSON, invalid regex, empty triggers, etc.

6. Performance Optimizations

skill_activation_prompt.rs:59-101:

• Pre-compiles regex patterns once (eliminates N regex compilations per check)
• Pre-lowercases keywords (eliminates N allocations per check)
• Uses efficient substring matching with .contains()

---

Issues & Concerns

🔴 Critical

None - no blocking issues found.

🟡 Medium Priority

1. Legacy Code Removal Without Migration Path
The PR removes 9 files from .claude/hooks/RustHooks/ totaling 2,476 deletions without providing a migration guide for existing users who may have referenced these files.

Recommendation:

• Add a MIGRATION.md or update existing docs explaining:
  • Why RustHooks directory was removed
  • How to transition if users were referencing these files
  • What the new structure is

2. Missing Tests for Error Scenarios
While test coverage is good, some scenarios lack tests:

• status.rs: No tests for validate_installation() integration
• status.rs: No tests for auto_fix() function
• Missing tests for concurrent init protection with actual lock contention

Recommendation:

• Add integration test for complete validation flow
• Add test for auto_fix successfully recreating wrappers
• Consider Phase 8 testing plan includes these scenarios

3. Inconsistent Comment Style
skill_activation_prompt.rs:83-90 has a very detailed comment explaining duplicate keywords, but similar complexity elsewhere lacks explanation.

Recommendation:

• Add similar detailed comments for:
  • Why break is used in hook validation loop (status.rs:216 & 239)
  • The path resolution priority logic (skill_activation_prompt.rs:208-233)

🟢 Low Priority (Nitpicks)

1. Unused Field Prefixes
Several fields are prefixed with underscore but are struct fields, not unused bindings:

// skill_activation_prompt.rs:40-47
_session_id: String,
_transcript_path: String,

Recommendation:

• Consider if these fields should be removed from the struct or used for logging/debugging

2. Magic Numbers
skill_activation_prompt.rs:301-361 - Priority strings ("critical", "high", "medium", "low") are hardcoded.

Recommendation:

• Consider extracting to constants or enum for type safety

3. Potential for Duplicate Validation
status.rs:206-220 and 229-243 have nearly identical loops for hook validation.

Recommendation:

• Consider extracting common validation logic to reduce duplication

---

Performance Considerations

✅ Excellent - The pre-compilation of regexes and keyword lowercasing shows thoughtful performance optimization. The approach of breaking after first match (continue at line 278) prevents redundant checks.

Minor note: Duplicate lowercased keywords (skill_activation_prompt.rs:496-503) still result in redundant comparisons, but as noted in comments, the performance impact is negligible for typical skill configurations (<10 keywords).

---

Security Considerations

✅ Good - The binary name validation (status.rs:620-630) properly prevents injection attacks. Input is sanitized before being used in file operations.

Recommendation:

• Consider adding similar validation for any other user-controlled strings used in file operations or commands

---

Testing Strategy

✅ Strong - Unit tests cover:

• Edge cases (empty triggers, invalid regex, malformed JSON)
• Error message formatting (includes error codes and helpful suggestions)
• Platform-specific behavior
• Validation logic

Recommendations for Phase 8:

1. Add integration tests for complete workflows
2. Test cross-platform behavior (especially Windows PowerShell)
3. Test concurrent init scenarios with actual lock contention
4. Performance benchmarks for skill activation with large skill sets

---

Documentation

✅ Excellent - The PR description is comprehensive with:

• Clear summary of features
• Test coverage details
• Line references to implementation
• No breaking changes statement

Minor suggestion:

• Update catalyst-cli-tasks.md to mark Phase 6 & 7 as complete in the summary section

---

Recommendations

Before Merge

1. ✅ Add migration guide for removed RustHooks directory
2. ✅ Document the hook validation break logic more clearly (PR feat: Phase 4 - Validation & Status Command #21 feedback item Add Claude Code GitHub Workflow #1)

Post-Merge / Phase 8

1. Add integration tests for validate_installation()
2. Add tests for auto_fix() functionality
3. Consider extracting priority strings to enum
4. Reduce code duplication in hook validation loops

---

Verdict

✅ Approved with minor suggestions

This PR successfully implements Phase 6 & 7 as specified. The code quality is high, error handling is comprehensive, and the improvements to validation and UX are well-implemented. The suggestions above are mostly quality-of-life improvements that could be addressed in Phase 8 or future iterations.

Confidence Level: High - The code demonstrates strong Rust practices, comprehensive testing, and clear documentation.

Great work! 🎉

[claude]

Pull Request Review - PR #26

Overview

This is a substantial and well-structured PR implementing Phase 6 (Update Command) and Phase 7 (Polish & UX). The PR demonstrates strong attention to detail in addressing previous feedback.

---

✅ Strengths

1. Excellent Documentation & PR Structure

• Comprehensive PR description with clear phase breakdown
• Detailed test plan and migration guide
• Task tracking updated with line references

2. Security: Input Validation ⭐

The fix_hook_wrapper() function (status.rs:649-658) demonstrates excellent security by validating binary names to prevent command injection. Great job! 👏

3. Error Handling & UX

• Structured error types with error codes (SA001-SA005)
• Helpful error messages with suggested fixes
• Graceful degradation when settings.json is missing

4. Code Quality

• Strong type safety: Priority enum instead of magic strings
• Performance optimization: Pre-compiled regex patterns
• Comprehensive test coverage: 15+ test cases
• Well-documented code with clear design explanations

5. Multi-Directory Support 🎯

Skill activation hook now supports /add-dir workflows, enabling polyglot workflows. Excellent enhancement!

---

🔍 Issues & Concerns

1. ⚠️ PR Scope - Large File Additions

Issue: PR adds 40K+ lines of Svelte content not mentioned in description:

• .claude/skills/svelte-skill/ (6K lines)
• llms.txt (16,249 lines)
• llms-medium.txt (25,015 lines)
• SVELTE_* docs (2,490 lines)

Recommendation: Split Svelte skill into separate PR or clarify purpose

2. ⚠️ Deleted Legacy Code

Issue: Removed RustHooks/ (1,668 lines) including:

• DATABASES.md (531 lines - SQLite/redb comparison)
• STANDALONE_INSTALLATION.md (536 lines)
• README.md (502 lines)

Recommendation: Add deprecation notice or preserve key docs

3. ⚠️ Hook Validation Break Logic

Location: status.rs:269

The break validates only first matching hook per HookConfig. If users have multiple wrappers, only first is validated.

Recommendation: Validate all matching hooks OR document limitation

4. 💡 Test Coverage Gaps

Missing:

• Test for multiple hooks with same binary
• Test for multi-directory skill-rules.json resolution
• Integration test for skill registration with malformed JSON

---

🔒 Security: No Critical Issues ✅

• Input validation (alphanumeric + hyphens/underscores)
• Path safety with PathBuf
• No unsafe code
• Proper error handling

---

📊 Overall Assessment

Category	Rating
Code Quality	⭐⭐⭐⭐⭐
Security	⭐⭐⭐⭐⭐
Documentation	⭐⭐⭐⭐
Test Coverage	⭐⭐⭐⭐
Performance	⭐⭐⭐⭐⭐
Scope Management	⭐⭐⭐

---

🎯 Recommendations

Critical (Address before merge)

1. Clarify Svelte skill addition - intentional?
2. Document RustHooks deletion
3. Fix/document hook validation break logic

Important

4. Add test for multiple hooks
5. Add test for multi-directory resolution
6. Extract magic numbers to constants

---

✅ Approval: Approve with Changes

This is high-quality work with excellent security and testing. Address scope clarification, RustHooks docs, and validation logic, then merge! 🚀

Great work on PR #21 feedback! 👏

---

Generated by Claude Code - 2025-01-11

[claude]

Pull Request Review: Phase 6 & 7 - Update Command + Polish & UX

This is a comprehensive PR that successfully implements both the update command functionality and addresses critical UX improvements from previous feedback. Overall, the code quality is excellent with strong attention to detail, extensive testing, and thoughtful architecture.

✅ Strengths

1. Excellent Error Handling & User Feedback

• Clear error codes (SA001-SA005) for easy debugging
• Actionable suggested fixes in every issue
• Context-aware guidance

2. Robust Test Coverage

• 7/7 update module tests passing
• 6/6 status module tests passing
• Integration tests for complete validation flows
• Edge case testing (invalid JSON, permission errors, malformed data)
• Tests for auto-fix functionality

3. Security Considerations
Strong input validation in fix_hook_wrapper (status.rs:653-669) prevents command injection attacks through wrapper names.

4. Performance Optimizations

• Pre-compiled regex patterns (skill_activation_prompt.rs:343-347)
• Pre-lowercased keywords (lines 101-112)
• Clear documentation explaining trade-offs

5. PR Feedback Integration
Addresses all PR #21 feedback items with detailed comments. The use of HashSet for deduplication (status.rs:263) is particularly well-implemented.

6. Multi-Directory Support
Thoughtful implementation with clear documentation explaining path resolution strategy and enabling polyglot workflows.

🔍 Areas for Improvement

1. Inconsistent Error Handling Patterns
Some errors return Result while others use silent defaults. Consider logging warnings when operations fail silently.

2. Large Function Complexity
validate_hooks (status.rs:160-223) handles multiple responsibilities. Consider extracting settings loading into a separate function.

3. Duplicate Code in Binary Validation
Platform-specific executable checks appear multiple times. Consider extracting to helper function is_executable.

4. Magic Number in Permission Check
0o111 appears without explanation. Add constant UNIX_EXEC_BITS with documentation.

5. Skill Registration Error Priority
Unregistered skills are marked as Warning but might warrant Error severity when skill has files but is not registered.

6. Unused Field Documentation
Many underscore-prefixed fields lack allow(dead_code) attribute.

🛡️ Security Review

Secure:

• Input validation prevents command injection
• Path handling uses proper PathBuf operations
• No unsafe code blocks
• Proper error propagation

Recommendations:

• Consider length limits for user-provided strings
• Add rate limiting for hook execution if not present

📊 Performance Considerations

Excellent:

• Regex pre-compilation
• Efficient string lowercasing strategy
• HashSet deduplication

Minor Concerns:

• collect_issues iterates multiple times over collections

🧪 Test Coverage Assessment

Strong Coverage:

• Unit tests for all core functions
• Integration tests for validation flows
• Edge case handling

Missing Tests:

• Multi-directory resolution priority
• Concurrent hook execution scenarios
• Large skill collections (performance regression tests)

📝 Documentation Quality

Excellent:

• Comprehensive inline comments
• PR feedback items clearly marked
• Function-level documentation

Could Improve:

• Add module-level documentation for status.rs
• Consider adding examples in doc comments

🎯 Alignment with Best Practices

Follows Rust best practices:

• Proper error type hierarchy with thiserror
• Result propagation throughout
• Platform-specific code properly gated

Follows project conventions:

• Consistent error codes
• Colored output with NO_COLOR support
• Comprehensive test coverage

Performance-conscious:

• Pre-compilation of expensive operations
• Efficient string handling
• Minimal allocations in hot paths

🚀 Recommendations for Future Work

1. Metrics/Telemetry for hook execution times and skill activation frequency
2. Caching skill rules between hook invocations
3. Parallel validation using rayon
4. Interactive fix mode

🎉 Conclusion

This is high-quality, production-ready code that demonstrates:

• Strong engineering fundamentals
• Excellent error handling and user experience
• Comprehensive testing
• Security awareness
• Performance optimization

Recommendation: ✅ APPROVE with minor suggestions

The suggested improvements are mostly stylistic or future enhancements. The code is ready to merge as-is and addresses all stated requirements.

Estimated Risk: 🟢 LOW

• Extensive test coverage
• No breaking changes
• Well-documented error cases
• Backwards compatible

Great work on this PR! The attention to detail in error messages and the thorough testing are particularly impressive.

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Reviewed with: Claude Code + CLAUDE.md guidelines + rust-developer skill
Review Date: 2025-11-11