After Phase 21. Compiler correctness first; then finish MCP disk-first tools.
| Wave | Theme | Gate |
|---|---|---|
| A | CFG join: empty match/if join → unreachable (no phantom inline_merge pred); LLVM phi only from reachable preds |
inline_match_return_roundtrip |
| B | MCP path-first: rynix_format / rynix_explain_alloc / compile / ast_query |
mcp_format_path_file, mcp_compile_path_file |
Contract: contracts/phase22_inline_mcp.contract.toml.
Vec[str]/ payload enum match- Tag/push release