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Get Started Free →get-bb/bb-plugin-authoring
Write, build, and install bb plugins.
Passed 19 of 22 test cases with the skill, and 9 of 22 without it.
and 11 more in the full report
11 fixed8 passed either way2 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 11 test cases the skill fixed. Same model, same prompt, with and without the skill.
My plugin build is failing because local TypeScript declarations have diverged from the installed SDK package version. What command should I run to sync and verify SDK declaration types?
| Checked | Without skill | With skill |
|---|---|---|
| Recommends running bb plugin types to resolve SDK declaration drift. | Missed | Passed |
The instructions your model reads when the skill loads.
A BB plugin is a TypeScript package that can add server behavior, agent capabilities, host-rendered UI, or a frontend bundle.
Use the current SDK types and repository source as the contract. This skill routes to detailed references, but the installed BB version decides the exact API.
Inspect the affected package and current SDK declarations to select backend, frontend, or both. Build the plugin and verify the affected contracts and user workflow. Install or reload when a live check is needed for the requested work.
Use bb plugin new for a new plugin. The scaffold includes frontend files.
Remove bb.app and those files when the plugin is headless.
Every new public Plugin SDK surface starts with an experimental_ prefix and an entry in docs/api_to_audit.md. Add its Plugin Guide card and API inventory in the same change.
test cases passed, vs 9 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.