Credits

agent-top is one static binary, and most of what makes it work was written by other people. This page names them.

Built on

rt ratatui Rendering

Draws every box, table, meter, sparkline and popup on the screen.

ratatui.rs ct crossterm Terminal

Raw mode, key events and the alternate screen agent-top draws on.

github.com/crossterm-rs/crossterm si sysinfo Processes

The process table, CPU and memory, on macOS and Linux, without a shell-out.

github.com/GuillaumeGomez/sysinfo lp libproc macOS

Which files a process holds open, which is how a Codex session is matched to its process exactly.

github.com/andrewdavidmackenzie/libproc-rs rq rusqlite SQLite

Reads OpenCode's session store read-only, with SQLite compiled into the binary.

github.com/rusqlite/rusqlite sd serde Data

Parses every transcript and prints the snapshot that --json and --replay share.

serde.rs cl clap Command line

Flags, subcommands, help text and the shell completions Homebrew installs.

github.com/clap-rs/clap tm toml Prices

Reads the built-in price table and the one you keep in your config directory.

github.com/toml-rs/toml uq ureq HTTP

The daily version check and the one trace --endpoint post you ask for. No async runtime.

github.com/algesten/ureq ah anyhow and thiserror Errors

Errors that say what went wrong and where, in the CLI and in the core crate.

github.com/dtolnay/anyhow

Made with

vhs VHS Recording

Records the demo animation and takes every screenshot of the live view, from a tape file checked into the repo.

github.com/charmbracelet/vhs fz Freeze Screenshots

Turns the report and plain-text output into the images on these pages.

github.com/charmbracelet/freeze md Material for MkDocs This site

Builds these pages from the Markdown in the repository's docs directory.

squidfunk.github.io/mkdocs-material jb JetBrains Mono Type

The face every command and code block on this site is set in, served from the site itself under the SIL Open Font License.

jetbrains.com/lp/mono mm Mermaid Diagrams

Draws the data-flow diagram on the architecture page, rendered to SVG at writing time so the page loads no script.

mermaid.js.org cf Cloudflare Pages Hosting

Serves the built site, rebuilt from the main branch on every push.

pages.cloudflare.com pf Perfetto Trace viewer

Opens the Chrome trace files that agent-top trace writes.

ui.perfetto.dev ot OpenTelemetry Trace format

The OTLP format the trace export speaks, so Jaeger, Tempo and any collector can read a session.

opentelemetry.io

In the spirit of

ht htop The idea

One screen, every process, refreshed every second. agent-top is that screen for coding agents.

htop.dev bt btop The look

Meters, ramps and a whole machine on one screen. The header and the colour ramps owe it a debt.

github.com/aristocratos/btop ch Charm This page

The card grid on this page is borrowed from how Charm presents its own tools.

charm.land

The harnesses it reads

cc Claude Code Anthropic

Per-pid session registry and JSONL transcripts. The exact attribution path.

claude.com/claude-code cx Codex OpenAI

Rollout files with usage, rate limits and MCP call events on every record.

github.com/openai/codex gm Gemini CLI Google

Session chats with usage per turn and MCP tools named by server.

github.com/google-gemini/gemini-cli oc OpenCode Open source

A SQLite session store with its own cost figure, read in place and read-only.

opencode.ai

agent-top is MIT licensed and written by Kannan Kalidasan. The crate dependency list, with every version, is in Cargo.lock.