AI Plugin Indexrun-in-sandbox vs frontend-api-contracts
run-in-sandbox and frontend-api-contracts are both ai and llm tools skills. frontend-api-contracts scores higher (87 vs 72 out of 100). frontend-api-contracts has more GitHub stars (91k), and frontend-api-contracts was updated more recently (2 days ago). The table compares them side by side.
| run-in-sandbox | frontend-api-contracts | |
|---|---|---|
| Score | 72 / 100 | 87 / 100 |
| What it does | Teaches you how to properly operate in the sandboxed environment you're in. | This skill should be used when the user asks to "add an API call", "change a backend", "update settings persistence", "change conversation events", "fix backend auth", "add Agent Server support", or changes src/api, backend registry, Cloud/runtime transport, settings, secrets, compatibility, or conversation resume behavior. |
| Publisher | Community: breadboard-ai | Community: OpenHands |
| Grades | Maintenance A, Licence A, Quality B | Maintenance A, Licence A, Quality A |
| npm downloads a week | Not on npm | Not on npm |
| Runs | Skill | Skill |
| Works with | Claude Code, Claude apps | Claude Code, Claude apps |
| GitHub stars | 423 | 91,343 |
| Last commit | 30 Sept 2026 | 20 Oct 2026 |
| Licence | Apache-2.0 | MIT |
| Listed since | 19 Oct 2026 | 20 Oct 2026 |
| Install run-in-sandbox | Install frontend-api-contracts |
Questions
Is run-in-sandbox or frontend-api-contracts more popular?
frontend-api-contracts has more GitHub stars: 91,343.
Can I use run-in-sandbox and frontend-api-contracts together?
Yes. AI assistants can load several skills at once. Install both and the assistant picks the right one for each task.