Copilot Extensions Preview SDK (JS)
Copilot Extensions Preview SDK (JS) is a GitHub Copilot Extension for api integration, published by GitHub copilot-extensions.
Official JavaScript SDK that handles request verification, response formatting, and prompt streaming for Copilot Extensions.
Is it any good?
Effectiveness · benchmark pending
We haven't benchmarked Copilot Extensions Preview SDK (JS) yet, so its score is provisional — computed from safety, maintenance, and documentation only, with popularity given no weight. When we benchmark it, we measure whether it produces materially better output than a frontier model alone, and that result leads the score. How we measure.
About Copilot Extensions Preview SDK (JS)
Description · AI-summarised from the GitHub copilot-extensions README
Maintained by GitHub's copilot-extensions org. Verifies signed payloads with GitHub's public keys, builds typed response events (text, confirmations, references, errors), and exposes helpers for OpenAI-compatible payloads. The de facto base layer for TypeScript and Node Copilot Extensions.
Where it fits
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Install Copilot Extensions Preview SDK (JS)
Install
Install via Copilot extension
# install via Copilot extension
# see vendor docsInstall with your AI
Zero install · paste into ChatGPT, Claude, Cursor…
Install the "Copilot Extensions Preview SDK (JS)" skill into my project by following all instructions at https://skillsdirectory.co/s/copilot-preview-sdk-js
Your assistant reads /s/copilot-preview-sdk-js and follows it — fetching the files from the source, placing them, and confirming before it runs anything. No account needed. How this works.
Frequently asked
FAQ
What does Copilot Extensions Preview SDK (JS) do?
Official JavaScript SDK that handles request verification, response formatting, and prompt streaming for Copilot Extensions.
How do I install Copilot Extensions Preview SDK (JS)?
Copilot Extensions Preview SDK (JS) is a GitHub Copilot Extension. Primary install path: # install via Copilot extension # see vendor docs
What is the Skill Score for Copilot Extensions Preview SDK (JS)?
Copilot Extensions Preview SDK (JS) has a Skill Score of 7.5/10 (High Quality). It is currently a provisional score — Copilot Extensions Preview SDK (JS) hasn't been benchmarked yet, so it weights safety 95/100 (40%), maintenance 54/100 (30%), and documentation 88/100 (30%). Popularity carries zero weight until effectiveness is measured. See methodology.
Is Copilot Extensions Preview SDK (JS) free?
Copilot Extensions Preview SDK (JS) is published under the MIT license. See the vendor's source repository for any usage limits or paid tiers.
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Embed this score
For maintainers · always-current, links back
Put it in your README — it updates as the score changes.[](https://skillsdirectory.co/skills/copilot-preview-sdk-js)
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