Extension SDK
Third-party packages add application capabilities; prompt skills alone are insufficient.
Yes Documented within scope Partial Limited form of the feature No Explicit evidence of absence Unknown No evidence recorded. These are support assessments, not quality scores or runtime verification.
| Product | Support | Implementation & evidence | Screenshots |
|---|---|---|---|
 NimbalystWorkspace | Yes | Third-party packages can register editors with structured agent hooks. Extension EditorHost contract; extension installation required. Documentation only; not runtime-tested. | |
 CloudCLIWorkspace | Yes | Plugins add custom tabs and optional backend services. Requires installing or authoring a plugin. Documentation only; not runtime-tested. | |
 OpenCodeCoding agent | Yes | JavaScript or TypeScript plugins supply hooks and custom tools. Project/global plugins; no claim of arbitrary visual editor extensions. Documentation only; not runtime-tested. | |
 ZedCoding platform | Yes | Extensions add languages, themes and server integrations. Supported extension contribution types; procedural components use Rust/Wasm. Documentation only; not runtime-tested. | |
 ConductorOrchestrator | Unknown | No evidence recorded. This does not mean unsupported. | |
 SupersetOrchestrator | Unknown | No evidence recorded. This does not mean unsupported. | |
 Vibe KanbanOrchestrator | Unknown | No evidence recorded. This does not mean unsupported. | |
 CursorCoding platform | Unknown | No evidence recorded. This does not mean unsupported. | |
 DevinCoding platform | Unknown | No evidence recorded. This does not mean unsupported. | |
 OpenHandsCoding platform | Unknown | No evidence recorded. This does not mean unsupported. | |
 EmdashOrchestrator | Unknown | No evidence recorded. This does not mean unsupported. | |
 Claude SquadTerminal manager | Unknown | No evidence recorded. This does not mean unsupported. | |
 OpcodeWorkspace | Unknown | No evidence recorded. This does not mean unsupported. | |
 CodexMonitorWorkspace | Unknown | No evidence recorded. This does not mean unsupported. | |
 cmuxTerminal manager | Unknown | No evidence recorded. This does not mean unsupported. | |
 ClineCoding platform | Unknown | No evidence recorded. This does not mean unsupported. | |
 Roo CodeArchived project | Unknown | No evidence recorded. This does not mean unsupported. | |
 Kilo CodeCoding platform | Unknown | No evidence recorded. This does not mean unsupported. | |
 AiderCoding agent | Unknown | No evidence recorded. This does not mean unsupported. | |
 WarpCoding platform | Unknown | No evidence recorded. This does not mean unsupported. |