Legend:
| Feature | VSCode | Details |
|---|---|---|
| Parse and validate manifests for all extension types | ✅ | VSCode uses package.json with extension-specific schemas |
| Define standardized manifest schema with version compatibility | ✅ | Well-defined package.json schema with version ranges |
| Support three manifest types (AI Models, UI Extensions, Utilities) | ⚠️ | Only supports general extensions, no specialized AI/utility distinction |
| Manifest validation with schema enforcement | ✅ | Built-in validation during packaging and installation |
| Dependency resolution and version management | ✅ | npm-style dependency management with version constraints |
| Capability declaration and verification | ⚠️ | Basic contributes/activationEvents, but limited fine-grained capabilities |
| Feature | VSCode | Details |
|---|---|---|
| Extension lifecycle management (load, initialize, suspend, unload) | ⚠️ | Load/activate/deactivate, but no suspend functionality |
| Sandboxed execution environment with security isolation | ⚠️ | Extensions run in separate processes but limited sandboxing |
| Process-level isolation for untrusted extensions | ⚠️ | Extension host processes, but not per-extension isolation |
| Memory and resource limits enforcement | ❌ | No built-in resource limits or enforcement |
| Hot-reloading for development and updates | ⚠️ | Developer reload window, but not seamless hot-reloading |
| Extension communication channels (IPC/messaging) | ✅ | Message passing between main and extension processes |
| Error handling and recovery mechanisms | ⚠️ | Basic error handling, limited automatic recovery |
| Feature | VSCode | Details |
|---|---|---|
| Fine-grained permission model with capability-based security | ❌ | Extensions have broad API access, no granular permissions |
| Runtime permission enforcement for system calls | ❌ | No runtime permission system |
| Resource limits (CPU, memory, network, filesystem) | ❌ | No enforced resource limits |
| Secure inter-extension communication with encryption | ❌ | Extensions can communicate but no built-in encryption |
| Extension signature verification and trust levels | ⚠️ | Marketplace signing, but no trust level system |
| Behavioral monitoring and anomaly detection | ❌ | No built-in behavioral monitoring |
| Feature | VSCode | Details |
|---|---|---|
| Three-tier trust system (Community/Trusted/Enterprise) | ❌ | Single extension model, no trust tiers |
| Certificate-based authentication and signing | ⚠️ | Marketplace signing only |
| Private registry support for trusted extensions | ⚠️ | Can sideload, but no formal private registry system |
| Runtime access verification for internal APIs | ❌ | No differentiated internal API access |
| Trust level monitoring and violation detection | ❌ | No trust monitoring system |