reflex-dev/agent-skills

reflex-process-management

Manage Reflex application processes: compile to test, run the server in production mode, reload a running app by finding and restarting the app process, and manage logs for debugging.

Zobacz źródło

Jak używać

  1. Skopiuj polecenie instalacji i sprawdź źródła przed instalacją we własnym środowisku agenta.
  2. W oryginale sprawdź wymagane narzędzia, dane dostępowe i obsługiwane środowiska.
  3. Opisz dane wejściowe i oczekiwany rezultat; porównaj wynik ze źródłami.
npx skills add https://github.com/reflex-dev/agent-skills --skill reflex-process-management

Przed rozpoczęciem

  • Instalacja nie obejmuje subskrypcji modelu, limitu API ani uprawnień do plików.
  • Gwiazdki i instalacje pokazują aktywność, a nie niezależny test jakości lub bezpieczeństwa.
Oryginalny dokument Skill

Treść z repozytorium z zachowaniem nagłówków, przykładów, kodu, tabel, linków i obrazów.

Reflex Process Management

This skill covers how to compile, run, and reload a Reflex application.

Compiling (Testing the App)

To verify the app compiles without errors, run:

bash
reflex compile --dry

This checks for syntax errors, import issues, and component problems without starting the server. Use this as a quick validation step after making changes.

Running the Server

When instructed to run the Reflex server, always use production mode and redirect output to a log file:

bash
reflex run --env prod --single-port 2>&1 | tee reflex.log

This command starts a long-running server process that does not support hot reload in production mode. Code changes will not be picked up automatically — you must stop and restart the server to apply changes (see Reloading a Running App below).

Using 2>&1 | tee reflex.log captures both stdout and stderr to reflex.log while still printing to the terminal.

Important: Always use --env prod unless the user explicitly requests development mode.

Reloading a Running App

To reload the app without manually stopping and restarting from the terminal, follow these steps:

Step 1: Determine the app port

Read reflex.log to find the port the app is listening on. Look for a line like App running at: http://0.0.0.0:<port>. Do not assume the port is 8000.

Step 2: Find the app process

Using the port from Step 1, locate the listening process (not browser connections):

bash
lsof -i :<port> -sTCP:LISTEN -t

The -sTCP:LISTEN flag is critical — it filters to only the server process that is listening on the port, excluding browser or client connections. Without it, you may kill the user's browser.

If lsof is not available, use:

bash
ss -tlnp | grep :<port>

Or:

bash
fuser <port>/tcp

Step 3: Send an interrupt signal

Send SIGINT (equivalent to Ctrl+C) to gracefully stop the process:

bash
kill -INT $(lsof -i :<port> -sTCP:LISTEN -t)

If the process doesn't stop, escalate to SIGTERM:

bash
kill -TERM $(lsof -i :<port> -sTCP:LISTEN -t)

Step 4: Restart the server

Once the old process has exited, truncate the old log and start the server again:

bash
> reflex.log
reflex run --env prod --single-port 2>&1 | tee reflex.log

Investigating Errors

When the user reports an error, read reflex.log to find and diagnose the issue.

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