fix: check skill examples in TypeScript 7 repositories

[LadyBluenotes]

🎯 Changes

• intent validate, intent repair, and maintainer review summaries crashed in repositories that use TypeScript 7 with Cannot read properties of undefined (reading 'ESNext'). The TypeScript 7 typescript package exports only version fields, so the 5.0 minimum version check passed and the example checker then read a compiler API that is not there.
• Examples are now checked through the compiler API that TypeScript 7 publishes under typescript/unstable/*, loaded from the repository, so a TypeScript 7.0 repository gets the same example checks as a TypeScript 6 repository with nothing extra to install. The async API is used, so this also works under Bun.
• When @typescript/typescript6 is installed beside TypeScript 7, that package is used instead.
• When neither API can run, example checks are skipped with a reason and the other checks still run. validate reports Skill code blocks were not typechecked: ..., and repair reports the reason as a problem.
• Both compiler paths share one set of compiler options in tsconfig form. checkSkillBlocks, planExampleRepairs, describeSkillExamples, and runRepairCommand are now async.
• Adds typescript7, an alias of typescript@7.0.2, as a devDependency of packages/intent. The alias links TypeScript 7's tsc into the package, so test:types runs the workspace TypeScript 6 by path.
• Docs: TypeScript 7.0 support, Node.js 24 or newer, and TypeScript 7.1 is not supported at this time.
• Adds a patch changeset.

Fixes #307

✅ Checklist

• I have followed the steps in the Contributing guide.
• I have tested this code locally with pnpm run test:pr (run pnpm build:all first).

🚀 Release Impact

• This change affects published code, and I have generated a changeset.
• This change is docs/CI/dev-only (no release).

[changeset-bot]

🦋 Changeset detected

Latest commit: 10bc21b

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@tanstack/intent	Patch

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⛔ Files ignored due to path filters (1)

• pnpm-lock.yaml is excluded by !**/pnpm-lock.yaml

📒 Files selected for processing (11)

• .changeset/typescript-7-compiler-api.md
• docs/cli/intent-repair.md
• docs/cli/intent-validate.md
• packages/intent/package.json
• packages/intent/src/cli.ts
• packages/intent/src/commands/maintainer.ts
• packages/intent/src/commands/repair.ts
• packages/intent/src/commands/validate.ts
• packages/intent/src/validate/blocks.ts
• packages/intent/tests/repair.test.ts
• packages/intent/tests/validate-blocks.test.ts

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☁️ Nx Cloud last updated this comment at 2026-10-03 15:59:25 UTC

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npm i https://pkg.pr.new/@tanstack/intent@308

commit: 10bc21b

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Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	typescript@​7.0.2

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_{Comparing fix/typescript-7-compiler-api (10bc21b) with main (796fd6a)}