# PBS Frontend PR Sequence

Este indice organiza uma sequencia de PRs atomicas para levar `frontends/pbs` ao contrato das specs.

1. `PR-001-pbs-lexer-core-syntax-alignment.md`
2. `PR-002-pbs-ast-contract-v1.md`
3. `PR-003-pbs-parser-declarations-and-types.md`
4. `PR-004-pbs-parser-statements-and-control-flow.md`
5. `PR-005-pbs-parser-expressions-optional-result-apply.md`
6. `PR-006-pbs-barrel-and-module-visibility.md`
7. `PR-006.2-pbs-parser-ast-syntax-hardening.md`
8. `PR-006.3-pbs-syntax-completeness-and-module-hygiene.md`
9. `PR-007-pbs-static-semantics-declaration-validation.md`
10. `PR-008-pbs-static-semantics-call-resolution-and-flow.md`
11. `PR-009-pbs-diagnostics-contract-v1.md`
12. `PR-010-pbs-irbackend-lowering-contract.md`
13. `PR-011-pbs-gate-u-conformance-fixtures.md`

Cada documento e auto contido e inclui: `Briefing`, `Target`, `Method`, `Acceptance Criteria` e `Tests`.

## Non-Conformance Remediation PRs

14. `PR-012-pbs-byte-offset-spans.md`
15. `PR-013-pbs-import-unresolved-diagnostics.md`
16. `PR-014-pbs-switch-wildcard-rules.md`
17. `PR-015-pbs-this-self-context-validation.md`
18. `PR-016-pbs-assignment-target-and-field-access-semantics.md`
19. `PR-017-pbs-const-evaluation-and-dependency-rules.md`
20. `PR-018-pbs-result-flow-ok-err-handle-rules.md`
21. `PR-019-pbs-non-unit-fallthrough-diagnostics.md`
22. `PR-020-pbs-lowering-admission-gates.md`
23. `PR-021-pbs-handle-aware-fallthrough-completion.md`
24. `PR-022-pbs-source-kind-and-module-origin-pipeline.md`
25. `PR-023-pbs-stdlib-environment-resolver-and-loader.md`
26. `PR-024-pbs-parser-ast-interface-module-mode.md`
27. `PR-025-pbs-interface-module-semantics-and-linking.md`
28. `PR-026-pbs-sdk-minimal-core-color-and-gfx.md`
29. `PR-027-pbs-builtin-metadata-extraction-and-ir-lowering-admission.md`
30. `PR-028-pbs-gate-u-sdk-interface-module-fixtures.md`