Add LSP diagnostics support via IDE passthrough #11
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- Add Diagnostic struct and DiagnosticSeverity enum to ide module - Add IdeEvent::Diagnostics variant for receiving LSP diagnostics - Create diagnostics_tracking.lua that hooks into DiagnosticChanged - Update NvimHandler to parse codey_diagnostics notifications - Store diagnostics in App keyed by file path Diagnostics are sent from Neovim after LSP updates (debounced 100ms), providing the agent with error/warning information for edited files.
- Add get_diagnostics.lua that uses vim.wait() for DiagnosticChanged
- Add Ide::reload_and_get_diagnostics() for synchronous diagnostic fetch
- Modify tool completion handler to append diagnostics to results
After edit_file executes, the tool result now includes any LSP errors
or warnings, giving the agent immediate feedback on code issues:
Successfully applied 1 edit(s) to src/foo.rs
LSP Diagnostics:
line 12: [rust-analyzer] error: cannot find value `foo`
line 15: [rust-analyzer] warning: unused variable `x`
Uses event-driven waiting (DiagnosticChanged autocmd + vim.wait)
rather than polling, with a 500ms timeout.
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Diagnostics are sent from Neovim after LSP updates (debounced 100ms),
providing the agent with error/warning information for edited files.