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tsgo

tsgo is Microsoft's Go port of the TypeScript compiler / type checker. Used for full TypeScript type checking in vinext's CI.

Role on this wiki

Part of vinext's AI agent guardrails — full TS type checking via tsgo runs on every PR alongside Vitest, Playwright, and oxlint. AI-generated code had to pass the same type-checking bar as human-written code.

Seen in

• sources/2026-02-24-cloudflare-how-we-rebuilt-nextjs-with-ai-in-one-week

Related

• systems/typescript — the language tsgo type-checks.
• systems/vinext — production consumer.
• systems/oxlint — sibling quality-gate.