feat(explorer): implement Explorer subagent with modular utilities #18
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Create domain-specific metadata utilities for search result processing: - extractMetadata(): Type-safe metadata extraction from SearchResult - extractFilePath(): Quick path accessor for common use case - ResultMetadata interface for consistent typing across explorer These utilities provide the foundation for filtering, relationship building, and analysis modules. Added 8 comprehensive tests with 100% coverage.
Create filtering utilities for search result processing: - matchesFileType(): Filter results by file extensions - isNotReferenceFile(): Exclude reference files from similar code search These utilities build on metadata extraction (previous commit) to enable targeted code exploration with file type filtering and self-exclusion. Added 15 comprehensive tests including: - Extension matching (.ts, .tsx, .md) - Empty/complex extension handling - Case sensitivity validation - Combined filter chaining 100% coverage on all filter utilities.
Create relationship management utilities for code dependency tracking: - createRelationship(): Build CodeRelationship from search results - isDuplicateRelationship(): Prevent duplicate relationship entries These utilities enable the explorer to track imports, exports, dependencies, and usage patterns across the codebase. Built on metadata extraction to ensure consistent file path and line number handling. Added 16 comprehensive tests including: - Relationship creation for all types (imports, exports, dependencies, uses) - Duplicate detection by file path and line number - Edge cases (line 0, missing metadata) - Integration scenarios for relationship graph building 100% coverage on all relationship utilities.
Create analysis utilities for codebase insights and metrics: - getCommonPatterns(): Returns common code patterns to analyze - sortAndLimitPatterns(): Sort patterns by frequency and limit results - calculateCoverage(): Compute indexing coverage percentage These utilities are independent of other explorer utilities and provide reusable functions for pattern frequency analysis and coverage metrics used by the insights feature. Added 27 comprehensive tests including: - Pattern list consistency and content validation - Sort/limit with various constraints (edge cases, large datasets) - Coverage calculation (zero-safe, decimal precision, large numbers) 100% coverage on all analysis utilities.
Wire up all utility modules with barrel exports and update consumers: Architecture changes: - Create utils/index.ts barrel export for clean imports - Update explorer/index.ts to import from modular utils - Maintain backward compatibility via re-exports Integration: - Add CLI support with 'dev explore' command - Implement pattern and similar subcommands - Connect Explorer agent to CLI interface Documentation: - Add comprehensive Explorer README with usage examples - Document all exploration capabilities and CLI usage Testing: - Add 33 integration tests for ExplorerAgent - Total: 99 tests across all utils modules - 100% coverage on utilities, 85.57% on explorer core This completes the modular refactoring, providing: - Clean separation of concerns (metadata → filters/relationships → analysis) - Tree-shakeable exports for optimal bundling - Self-contained modules ready for extraction - Production-ready CLI interface Closes #11
This was referenced Nov 22, 2025
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Correction: This PR actually closes Issue #9 (Explorer Subagent), not Issue #11 (Configuration Management). Issue #11 has been reopened as it's still pending implementation. The Explorer implementation is completed across two PRs:
Together these PRs fulfill all acceptance criteria for Issue #9 ✅ |
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🎯 Overview
Implements the Explorer Subagent ("Visual Cortex") with modular utility architecture following open-source best practices.
✨ Features
Explorer Capabilities
CLI Integration
dev explore pattern <query>- Search for code patternsdev explore similar <file>- Find similar code🏗️ Architecture
Modular utilities organized by domain:
metadata.ts- Type extraction and path handling (foundation)filters.ts- Result filtering and matching (depends on metadata)relationships.ts- Relationship building (depends on metadata)analysis.ts- Pattern analysis and coverage (independent)index.ts- Barrel export for tree-shaking📊 Metrics
🎓 Open-Source Best Practices
✅ Modular architecture (SRP)
✅ Tree-shakeable exports
✅ Comprehensive documentation
✅ Granular, atomic commits
✅ Test-driven development
📚 Documentation
🔗 Related
Closes #11
🧪 Testing
All tests passing with 100% coverage on utilities.