<reusable-compact filename="ARCHITECTURE.md">
Go module `github.com/owner/toml-decoder` uses standard library only. `cmd/toml-decoder` reads TOML from stdin, emits tagged JSON to stdout, reports invalid input on stderr, and exits non-zero. `internal/toml` owns parsing and explicit value kinds while preserving integer lexemes.
</reusable-compact>

RESULT: SUCCESS

FILES CHANGED:
- go.mod
- cmd/toml-decoder/main.go
- internal/toml/value.go
- internal/toml/decode.go
- internal/toml/value_test.go

SUMMARY:
Implemented the dependency-free Go module, parser boundary, decoder command, tagged JSON model, and focused tests. Go tests, vet, formatting, build, and all architecture acceptance checks pass.

BLOCKERS:
- None