# zhongwencool/observer_cli

Visualize Erlang/Elixir Nodes On The Command Line

Repository: https://github.com/zhongwencool/observer_cli
Canonical: https://ross.abutalabs.com/products/observer_cli
Homepage: https://hexdocs.pm/observer_cli/
Language: Erlang
License: MIT
License Family: permissive
Topics: observer, recon, memory, performance, performance-visualization, performance-dashboard, erlang, elixir, profiling
Last push: 2026-07-14T03:38:39+00:00

## Health v2 (maintenance only)
Score: 90/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 92, release rhythm 81, longevity 100
- inputs: {"age_days": 3956, "days_push": 50, "days_rel": 50, "gap_med": 59, "n_releases_24m": 10}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1528, forks 92 (observed 2026-08-28T04:04:58.544604+00:00)

## What it is
A command-line and terminal UI tool for visualizing and diagnosing live Erlang/Elixir (BEAM) nodes, showing VM health, memory, IO, and process rankings. It supports bounded command diagnostics with text, Erlang-term, or JSON output plus an interactive TUI over Erlang distribution.

## Use cases
- inspect memory usage of a live Elixir node
- debug high CPU processes in production Erlang
- monitor BEAM VM health from the terminal
- dump process rankings as JSON for automation
- profile a Phoenix application at runtime
- troubleshoot Erlang node performance remotely

## When to choose
- you run Erlang/Elixir systems on OTP 26-29 and need production diagnostics
- you want scriptable JSON output for monitoring or AI agents
- you prefer a terminal tool over GUI observer

## When to avoid
- you need to inspect non-BEAM runtimes like JVM or Node.js
- your nodes run unsupported OTP versions
- you cannot connect over a trusted network since distribution cookies are not read-only credentials

## Facets
- artifact type: cli-tool
- maturity: stable
- function: monitoring, developer-tools, terminal-ui, cli
- domain: developer-tools, monitoring, performance
- platform: cli, elixir
- tags: erlang, elixir, beam, tui, profiling, diagnostics, otp, command-line, linux, macos

## Member repositories
- zhongwencool/observer_cli (main) score 90

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:58.544604+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:31:31.992940+00:00, confidence not recorded.
  - readme: https://github.com/zhongwencool/observer_cli (fetched 2026-08-28T04:04:58.544604+00:00, sha 37278d5c165a)
  - homepage: https://hexdocs.pm/observer_cli/ (fetched 2026-08-29T11:34:00.230717+00:00, sha 7cadde55160a)
- Data as of 2026-08-30T08:39:29.467469+00:00.