The README describes "pnpm Support" as a fork feature, but I don't see pnpm-specific commands being added in this PR. The only reference to pnpm is hardcoded in the vitest_cmd.rs module. This creates confusion about what's actually included in this PR versus what may be in other PRs or branches.

The test comment on line 234 indicates that the parsing logic only captures the passed count from the "Tests" line, not the total test count (passed + failed). This means when tests fail, the "total" field will be set to the number of passed tests (11) rather than the actual total (13). This could lead to confusion when interpreting the statistics. Consider parsing both passed and failed counts from the "Tests" line to compute the correct total.

The regex patterns are compiled on every function call, which is inefficient. The codebase already uses lazy_static for regex compilation throughout (see src/filter.rs:146-148, src/ls.rs:40, src/runner.rs:64, src/tracking.rs:9). Follow the established pattern by using lazy_static to compile these regex patterns once at startup. For example:

lazy_static::lazy_static! {
    static ref ANSI_REGEX: Regex = Regex::new(r"\x1b\[[0-9;]*m").unwrap();
    static ref TEST_FILES_REGEX: Regex = Regex::new(r"Test Files\s+(?:(\d+)\s+failed\s+\|\s+)?(\d+)\s+passed").unwrap();
    // ... other patterns
}

There's an existing generic rtk test command in src/runner.rs that supports multiple test frameworks (cargo test, pytest, jest, go test). Consider whether vitest support should be integrated into the existing test command rather than creating a separate vitest-specific command. This would maintain consistency with the existing pattern and allow users to use rtk test pnpm vitest run or similar. The current approach of creating a dedicated rtk vitest command may be justified if vitest requires significantly different parsing logic, but this should be documented in the PR description or code comments.

Hardcoding "pnpm" as the package manager makes this command incompatible with projects using npm, yarn, or bun. Consider detecting the package manager from the project (e.g., by checking for lock files like pnpm-lock.yaml, package-lock.json, yarn.lock, or bun.lockb) or allowing users to specify it via an environment variable or config option.

The ANSI escape sequence regex pattern \x1b\[[0-9;]*m only matches color/style codes ending in 'm'. However, ANSI escape sequences can end with other characters (like 'H' for cursor position, 'J' for clear screen, 'K' for clear line, etc.). While the current pattern may work for typical Vitest output, consider using a more comprehensive pattern like \x1b\[[0-9;]*[mGKHJfABCDsu] or \x1b\[[^m]*m to handle edge cases.

The regex pattern has a potential issue with the character class. The pattern [ms]+ will match any combination of 'm' and 's' characters (like "msms", "sssm", etc.), not just "ms" or "s". Consider using a non-capturing group like (?:ms|s) to match either "ms" or "s" as a unit.

The logic for detecting failed parsing (result.len() <= 1) is fragile. If stats.total is 0 or there are no failures or duration, the fallback will trigger even when parsing succeeded but found no tests. Consider checking if parsing genuinely failed (e.g., no regex matches at all) rather than just checking result length.

The limit flag detection using arg.starts_with('-') && arg.chars().nth(1).map_or(false, |c| c.is_ascii_digit()) is overly simplistic and will incorrectly match flags like "-2way" or other options that start with a digit. Consider using a more robust pattern or explicitly checking for -n followed by digits, or using a regex pattern like ^-\d+$.

This roadmap file contains a hardcoded personal file path "/Users/florianbruniaux/Sites/MethodeAristote/app" which should not be included in the repository. Consider using a generic example path or environment variable placeholder instead.