Files
g3/analysis/deps/layers.observed.md
Dhanji R. Prasanna f0bd7959b1 chore(analysis): update dependency analysis artifacts
Authored by: Structural Analysis Agent (Euler)

Updated all dependency analysis artifacts with fresh extraction:
- graph.json: Canonical dependency graph with 10 crates, 139 files, 16 crate edges, 72 file edges
- graph.summary.md: Overview with fan-in/fan-out rankings and crate inventory
- sccs.md: SCC analysis confirming no cycles at crate or file level (clean DAG)
- layers.observed.md: 5-layer architecture diagram derived from dependencies
- hotspots.md: Coupling hotspots (g3-config highest fan-in, g3-cli highest fan-out)
- limitations.md: Documented extraction limitations (conditional compilation, macros, etc.)

Key findings:
- All 10 workspace crates form a directed acyclic graph
- g3-core/src/ui_writer.rs has highest file-level fan-in (10 dependents)
- g3-console is standalone with no workspace dependencies
- Clean layered architecture with no violations detected
2026-01-07 09:36:52 +11:00

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7.0 KiB
Markdown

# Observed Layering
## Layer Structure
Based on crate dependencies and file imports, the following layers are observed:
```
┌─────────────────────────────────────────────────────────────┐
│ LAYER 5: Binaries │
│ │
│ g3 (src/main.rs) g3-console (src/main.rs) │
│ │ │ │
└─────────┼───────────────────────────┼───────────────────────┘
│ │
▼ ▼
┌─────────────────────────────────────────────────────────────┐
│ LAYER 4: Application │
│ │
│ g3-cli g3-console (lib) │
│ ├── Interactive CLI ├── Web API │
│ ├── TUI rendering ├── Process management │
│ └── Session management └── Log parsing │
│ │
└─────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────┐
│ LAYER 3: Orchestration │
│ │
│ g3-planner g3-ensembles │
│ ├── Planning workflow ├── Flock mode │
│ ├── Git integration └── Multi-agent status │
│ └── LLM coordination │
│ │
└─────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────┐
│ LAYER 2: Core │
│ │
│ g3-core │
│ ├── Agent engine (lib.rs) │
│ ├── Context window management │
│ ├── Tool dispatch & execution │
│ ├── Streaming parser │
│ ├── Error handling & retry │
│ └── Code search (tree-sitter) │
│ │
└─────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────┐
│ LAYER 1: Foundation │
│ │
│ g3-providers g3-config g3-execution │
│ ├── Anthropic ├── TOML └── Coverage tools │
│ ├── Databricks │ parsing │
│ ├── OpenAI └── Settings g3-computer-control │
│ ├── Embedded ├── Platform (macOS/ │
│ └── OAuth │ Linux/Windows) │
│ ├── OCR │
│ ├── WebDriver │
│ └── MacAX │
│ │
└─────────────────────────────────────────────────────────────┘
```
## Layer Dependency Rules
| From Layer | May Depend On |
|------------|---------------|
| 5 (Binaries) | 4, 1 |
| 4 (Application) | 3, 2, 1 |
| 3 (Orchestration) | 2, 1 |
| 2 (Core) | 1 |
| 1 (Foundation) | (none - leaf) |
## Observed Violations
**None detected.**
All observed dependencies follow the layering rules:
- Higher layers depend only on lower layers
- No skip-level violations that bypass intermediate layers inappropriately
- No upward dependencies
## Cross-Cutting Concerns
### g3-config
Used by: g3-cli, g3-core, g3-planner, g3-ensembles
- Provides `Config` struct across all layers
- Appropriate as foundation-level shared configuration
### g3-providers
Used by: g3, g3-cli, g3-core, g3-planner
- Provides `Message`, `MessageRole`, `LLMProvider` types
- Core abstraction for LLM communication
- Appropriate as foundation-level abstraction
### UiWriter trait (g3-core/src/ui_writer.rs)
Used by: 10 files within g3-core, implemented by g3-cli
- Abstraction for output rendering
- Defined in core, implemented in application layer
- Follows dependency inversion principle
## Module Groupings by Path Convention
| Path Pattern | Purpose | Crates |
|--------------|---------|--------|
| `src/tools/*` | Tool implementations | g3-core |
| `src/api/*` | HTTP API handlers | g3-console |
| `src/models/*` | Data structures | g3-console |
| `src/process/*` | Process management | g3-console |
| `src/platform/*` | OS-specific code | g3-computer-control |
| `src/ocr/*` | OCR implementations | g3-computer-control |
| `src/webdriver/*` | Browser automation | g3-computer-control |
| `src/macax/*` | macOS accessibility | g3-computer-control |
| `src/code_search/*` | Tree-sitter search | g3-core |
## Confidence Assessment
| Aspect | Confidence | Notes |
|--------|------------|-------|
| Crate-level layering | High | Derived from Cargo.toml |
| File-level layering | Medium | Based on import analysis |
| Violation detection | Medium | May miss dynamic/conditional deps |
| Module groupings | High | Based on path conventions |