Serena at 28.1k stars is pushing symbol-level MCP tooling past text-diff editing.

oraios/serena markets itself as "the IDE for your coding agent": LSP-backed semantic retrieval at the symbol level, rename, move and inline refactors, and symbolic editing instead of text patches, across 40+ languages and 3,304 commits (GitHub). The claim practitioners repeat is that it collapses multi-step error-prone sequences (find references, edit each site, verify) into atomic operations, which is exactly where text-diff agents burn context and introduce regressions. Agent tooling is converging on the language-server layer that human IDEs standardized on a decade ago.