Diagnostics across all open files in one call, grouped by file path.
Includes cross-file E0400 warnings for undefined imports, with optional
severity filter and file glob filter. 12/12 tests pass.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
DiagnosticVersionTracker records snapshots and computes added/removed deltas
between versions. Agents can efficiently check if their fix resolved an error
without re-fetching all diagnostics. 21 MCP tools total.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Concrete mutation objects for each diagnostic fix. getQuickFixes returns
reviewable fixes with categories; applyQuickFix applies the fix and reports
whether the diagnostic cleared. Heuristic fixes for missing return and
unused variables. 20 MCP tools total.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>