Changelog

All notable changes to MandoCode will be documented in this file.

[0.9.6] - 2026-04-06

Unit test project with 65 tests covering InputStateMachine and DiffService
- Text input, cursor movement, backspace/delete, submit
- Command autocomplete filtering, dropdown navigation, accept/dismiss
- Command history navigation with saved input restoration
- Paste handling with newline-to-space conversion
- Static helper tests (IsCommand, GetCommandName) using parameterized [Theory] tests
- Diff computation for new files, modifications, deletions, identical content
- Line ending normalization (Windows \r\n, old Mac \r)
- Large file fallback with sampled diffs
- Context collapse with configurable context lines
Empty response recovery — when the model returns blank (context overflow), MandoCode now shows a helpful message instead of freezing with a blank screen
Rendering timeout guard — markdown rendering runs with a 30-second timeout and a "Rendering..." spinner after 1 second, preventing permanent freezes on large responses. Falls back to raw text if rendering exceeds the limit.

Timeout retry deadlock — when a request timed out (5-minute limit), RetryPolicy was treating the timeout as a transient error and retrying the entire request including all file reads. With 2 retries, this could silently hang for up to 15 minutes. Now the cancellation token is properly passed to RetryPolicy so timeouts fail fast.
Silent exception suppression — replaced 6 bare catch { } blocks with catch (Exception ex) logging to Debug.WriteLine across TerminalThemeService, App.razor, FileSystemPlugin, FunctionInvocationFilter, and ShellCommandHandler
Shell command injection surface — ShellCommandHandler and FileSystemPlugin now use ProcessStartInfo.ArgumentList for proper argument escaping instead of manual string concatenation with cmd.Replace("\"", "\\\"")
Inconsistent config validation — Program.cs accepted any maxTokens > 0 while ValidateAndClamp() enforced [256, 131072]. All validation now uses centralized constants and helpers on MandoCodeConfig

Config validation constants (MinTemperature, MaxTemperature, MinMaxTokens, MaxMaxTokens) and helpers (IsValidTemperature, IsValidMaxTokens) are now defined once on MandoCodeConfig and referenced by Program.cs, ConfigurationWizard.cs, and ValidateAndClamp()