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samchonsamchon/ttsc/.agents/skills/typescript-go-sync/SKILL.md

typescript-go-sync

Skill359 starsChanged 18 days agoMITView on GitHub

Keeps packages/ttsc/shim synchronized with typescript-go and complete for plugin authors. Use before adding a shim re-export, bumping typescript-go, changing the shim audit, or chasing a missing compiler API.

We split this skill into the rules it gives an agent

2 rules. About 0 are common, 0 are distinctive, and 2 are very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈0

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 2

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Very specific:

    If the generator derives it, run go run '-modfile=tools/gen_shims/go.mod' ./tools/gen_shims/main.go in packages/ttsc.

    line 13
  2. Very specific:

    Run the generator with GOWORK=off, then pnpm --filter ttsc shim:audit -fix.

    line 18

≈ “Common” is an estimate: at least 1 in 5 of the 308,232 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

TypeScript-Go Shim

Each packages/ttsc/shim/<name> is a Go module re-exporting typescript-go's internal/<name>, the only compiler surface plugins can use. A missing re-export of an API in unmodified upstream is a ttsc bug.

Adding An API

  1. Find the symbol under $(go env GOMODCACHE)/github.com/microsoft/typescript-go@<version>/internal/<pkg>/.
  2. If the generator derives it, run go run '-modfile=tools/gen_shims/go.mod' ./tools/gen_shims/main.go in packages/ttsc; generated shim.go files are never edited. Otherwise list it in the directory's extra-shim.json, or write it in a file marked // gen_shims:hand-maintained, where an unexported symbol takes a bodiless //go:linkname declaration with import _ "unsafe".

Bumping typescript-go

  1. Update the identical require github.com/microsoft/typescript-go v0.0.0-<timestamp>-<hash> in every shim, packages/ttsc/go.mod, and each consumer that pins it, and refresh sums through the real module or workspace resolution. Never add permanent absolute replacements. go work sync can succeed while leaving a module stale; then set its requirements with go mod edit -require and run go mod download.
  2. Run the generator with GOWORK=off, then pnpm --filter ttsc shim:audit -fix.
  3. Fix hand-maintained files and extra-shim.json for upstream renames, signature changes, and export flips, keep previously exported enum families, and document public migrations in the AST and Checker guide.

Audit

CI runs pnpm --filter ttsc shim:audit. Accept a new gap into tools/shim_audit/baseline.json with -write-baseline only on purpose, and give every producer_exemptions entry a rationale. The audit proves only that code compiles, so add a runtime probe in packages/lint/linthost/ that walks a Checker loaded through loadProgram for each new graph-walk operation.

Consumer Validation

A shim change is proven only by a downstream plugin passing against it. Build and pack with your platform package, install the tarballs into ../typia or another consumer, and run a test that uses the API:

pnpm --filter ttsc --filter @ttsc/unplugin --filter ./packages/ttsc-linux-x64 -r --workspace-concurrency=1 build
pnpm --filter ttsc --filter @ttsc/unplugin --filter ./packages/ttsc-linux-x64 exec pnpm pack --out "../../experimental/tarballs/%s.tgz"

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