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herdr

herdr, an agent-aware terminal multiplexer, with its keys, theme, plugins and Claude Code hook.

herdr is a terminal multiplexer with workspaces, tabs and panes, a sidebar, a prefix key (ctrl+b), and a plugin system. It tracks coding agents running in its panes: agent-state colors, next/previous agent keys, and an integration that reports Claude Code sessions to it.

Source prdlk/herdr via .chezmoiexternals/herdr.toml (~/.config/herdr/); dot_config/herdr-nvim/config.toml
Target ~/.config/herdr/, ~/.config/herdr-nvim/config.toml
Install Not in packages.yaml; updated by topgrade (herdr update)
Launch kitty super+a (see kitty)

config.toml

onboarding = false.

UI and theme

Setting Value
ui.pane_borders, ui.pane_outer_borders false (panes separated by gaps only)
ui.prompt_new_tab_name false
ui.accent #5ea1ff
ui.status_indicators symbols
ui.toast.delivery system
theme.name terminal, auto_switch = false
theme.custom.panel_bg reset (keeps kitty's translucency and compositor blur)
sidebar_bg / active_row_bg / selection_bg #16181a / #1e2124 / #3c4048
accent / surface_dim #243348 / #5ea1ff (active tab plate matches kitty's tab bar)
Agent-state colors green #5eff6c, yellow #f1ff5e, red #ff6e5e, peach #ffbd5e, mauve #bd5eff
experimental.kitty_graphics true; pane_history = false
switch_ascii_input_source_in_prefix true

These are cyberdream colors.

Keys

Key Action
prefix % Split vertical
prefix " Split horizontal
prefix d Detach
prefix s Workspace picker
prefix shift+s Settings
k / j Move up / down in the workspace picker (pane up/down in navigate mode unbound)
prefix . / prefix , Next / previous agent
prefix j / prefix k Next / previous workspace
prefix up/down/left/right Focus pane
ctrl+h/j/k/l vim-herdr-navigation left/down/up/right
prefix e chmarax.herdr-nvim.toggle (nvim sidebar)
prefix o chmarax.herdr-nvim.pick-file (open file from agent output)
prefix t switchboard.menu
prefix shift+p switchboard.commands
prefix shift+l switchboard.git
prefix shift+k switchboard.projects
prefix y Open official.browser plugin in a right split
prefix shift+o Open official.browser as an overlay

Plugins

plugins.json is herdr's plugin registry. .plugins.lock is committed empty. plugins/config/official.browser/ and plugins/config/vim-herdr-navigation/ hold placeholder .keep files for per-plugin config. plugins/github/, where herdr installs plugin checkouts, is gitignored in the repo.

Plugin Description (from its manifest)
chmarax.herdr-nvim Full-height nvim sidebar with agent annotations
herdr-automatic-rename Names tabs after the foreground program, adds 1–9 jump numbers
official.browser Open and inspect real browser pages from herdr
oh-my-opencode-slim OpenCode agent orchestration with a herdr adapter
persiyanov.reviewr Review agent-written diffs beside the chat
rjyo.window-title-sync Syncs the outer terminal title to the focused workspace, tab and agent
switchboard Command palette: projects, commands, ports, git, clone, settings
vim-herdr-navigation Vim-aware ctrl+h/j/k/l pane movement

fish sources herdr-automatic-rename's shell/hook.fish if present.

herdr-nvim

~/.config/herdr-nvim/config.toml

[sidebar]
position = "left"

The nvim sidebar opens to the left of existing panes (default is right).

herdr/kitty.conf

A legacy kitty config kept in the herdr folder. It runs tmux new-session -A -s main, listens on unix:@mykitty, includes current-theme.conf, maps super/alt keys to tmux prefix bytes, and has a copy of an older tmux.conf appended. The active herdr host is ~/.config/kitty/herdr.conf.