corral

Round up your projects into herdr workspaces.

corral sets up a herdr workspace for any project under a root directory (~/Code by default). Each workspace gets a utility tab (file manager, shell and git UI by default) and one or more agent tabs, each named for the model and effort it runs: Sonnet•medium, Opus•high, Codex•xhigh. Use the TUI to browse projects and act with single keys, or the CLI (with --json) for scripts and coding agents.

┌ corral 0.1.0 ─────────────────────────── ~/Code ┐
│ ● cEntities        wY  ● Opus xhi  ● Opus hi   develop  │ cruzainet
│ ○ ▸ Archive/ · 5 repos                                   │ ~/Code/cruzainet
│ ○ ▾ cruzainet                             master        │
│ ○   ├─ api                                develop       │ kind     git repo
│ ○   ├─ web-app                            style/visual… │ nested   8 repos below
│ ○   └─ specs                              master        │ branch   master
└ o Open  a Add agent  f Fill  s Stop  x Close WS  / Filter ┘

Install

Requires Python 3.11+ and herdr 0.8+.

uv tool install corral-herdr    # or: pipx install corral-herdr
brew install johnfoland/tap/corral-herdr

The package is corral-herdr on PyPI and in Homebrew; the command it installs is corral. (homebrew/core's corral is the Pony package manager, which also installs a corral command, so the two can't be installed together.)

Use

corral                                  # the TUI
corral up ~/Code/api                    # build the workspace, or focus it if it exists
corral up ~/Code/api --agent opus/high --agent codex/xhigh
corral up --fill                        # add whatever tabs the current project's workspace lacks
corral tab opus/high                    # an agent tab in the workspace you're in
corral tab sonnet --new                 # another one: Sonnet•medium-2
corral stop "Opus•high"                 # by tab label, agent name or pane id
corral close courses --dry-run          # what closing would take with it
corral ls                               # projects, workspaces, agents
corral models                           # the model matrix

Every command takes --json: the result goes to stdout as JSON, progress to stderr. Exit codes: 0 ok, 1 a target failed, 2 usage/config error, 3 herdr not running. --json, --root and --config go before or after the command (corral --root ~/Work ls).

Projects and labels

Every directory in the root is a project. So is every git repo nested up to scan_depth levels inside one (cruzainet/api), along with the plain folders that lead to one (Archive/AyeAI/). A project's workspace is labelled with its path relative to the root, so two nested repos that share a name don't collide. Hidden directories and dependency/build folders (node_modules, vendor, dist, …) are skipped.

TUI keys

Configure

Press , in the TUI for the settings screen. Its tabs cover the project root (with a folder browser), the agent tabs a new workspace gets, the utility tab's three panes, the model matrix and effort levels, and a few advanced options. Saving writes the config file and keeps its comments and layout. If the root doesn't exist when the TUI starts, the settings screen opens so you can choose one.

From the command line:

corral config init      # writes a commented ~/.config/corral/config.toml
corral config show      # the settings in effect

The file lives at $CORRAL_CONFIG, else $XDG_CONFIG_HOME/corral/config.toml, else ~/.config/corral/config.toml (on macOS too). Every key is optional.

root = "~/Code"                     # also --root / $CORRAL_ROOT
scan_depth = 3
default_agents = ["sonnet/medium"]

[utility]                           # "" = plain shell
top = "yazi"
bottom_left = ""
bottom_right = "lazygit"

[efforts]
claude = ["low", "medium", "high", "xhigh", "max"]

[[models]]                          # any herdr agent kind: claude, codex, gemini, opencode, ...
key = "opus"
tool = "claude"
display = "Opus"
args = ["--model", "opus", "--effort", "{effort}"]

Agent skill

skills/corral/SKILL.md teaches coding agents to drive corral through its --json CLI. The repo is also a Claude Code plugin marketplace:

/plugin marketplace add johnfoland/corral
/plugin install corral@corral

Or copy skills/corral into your agent's skills directory.

Develop

uv sync
uv run pytest
uv run ruff check . && uv run ruff format --check .

Tests run against an in-memory fake herdr (tests/fake_herdr.py); nothing touches a real herdr session. See CONTRIBUTING.md for commit conventions and the release process.

License

MIT