DevDoctor

A terminal checkup for your development environment. DevDoctor is a small, read-only TUI for finding the processes, TCP listeners, and toolchains that are running or installed on your machine.

What it shows

• Processes — PID, command, working directory, and reported TCP listeners. Switch between all processes and only the ones listening on a port.
• Runtimes — development tools found on PATH, every matching executable in PATH order, and the version reported by each one.
• Details — inspect the selected process or runtime without leaving the terminal.

Processes and runtimes can be searched independently. Search is case-insensitive: processes match against the PID or full command, while runtimes match against the tool name. Counts and details always reflect the currently visible list.

Installation

DevDoctor requires a recent stable Rust toolchain.

cargo install devdoctor

Then run:

devdoctor

Keys

Key	Action
1 / 2 / 3	Focus Status, Processes, or Runtimes
h / l / Tab	Cycle sections
j / k, arrows	Move the selection
g / G, Home / End	Jump to the first or last item
PageUp / PageDown	Move ten items
/	Search the focused section
Enter	Keep the search and stop editing
Esc	Clear the search and stop editing
[ / ] / f	Toggle All / Listening in Processes
J / K	Scroll the Details panel
r	Refresh the snapshot
q	Quit

Scope

DevDoctor is read-only by design:

• It never terminates processes.
• Version checks run --version for each discovered tool. They have a timeout, but they still execute local programs and can be slowed down by broken shims.

Development

cargo run
cargo test
cargo clippy --all-targets -- -D warnings