Sero CLI

sero-cli is Sero's workspace/session command surface. Agents call it as a tool, and operators can use the same syntax in Sero-aware terminal contexts.

Scope and syntax

A leading sero token is optional for command resolution, but examples use it for clarity.
Commands run in the current workspace and, when invoked during an agent turn, the current session/turn.
Invocation sources are tool, bash, and terminal.
Session-owned plugin/extension commands only appear for the active scoped session.
Blacklisted command roots are not registerable: auth, safeStorage, net, layout, agent, github.

sero help workspace
sero workspace info
sero session info

Batch behavior

sero-cli accepts multiple commands, one per line. Execution stops on the first non-zero exit code or timeout.

sero workspace info
sero vcs status
sero terminal read 50

Non-terminal invocations truncate output at 50KB / 2000 lines. Multi-command batches omit rich image output; rerun screenshot commands alone to receive images. Interactive commands disable normal per-command timeout behavior.

Built-in namespaces

Namespace	Source file	Purpose
`app`	`commands/apps/app-control*.ts`	Switch apps, screenshot, interact with UI, record, preview dev servers.
`appstate`	`commands/apps/app-state.ts`	Read/write app state JSON.
`artifacts`	`commands/apps/artifacts.ts`	Manage verification artifacts.
`browser`	`commands/browser/browser.ts`	Drive the visible in-app browser tabs.
`devserver`	`commands/container/devserver.ts`	Register/list/stop workspace dev servers.
`editor`	`commands/editor/editor.ts`	Read/list workspace files.
`session`	`commands/agent/session.ts`	Show current agent session state.
`set-title`	`commands/agent/session.ts`	Rename the current session.
`terminal`	`commands/container/terminal.ts`	Read recent terminal output.
`vcs`	`commands/vcs/vcs.ts`	Status, log, diff, checkpoints, remotes, push/fetch.
`workspace`	`commands/workspace/workspace.ts`	List/create/open/close workspaces and attach plugin folders.

`workspace`

Command	Output / side effects
`sero workspace list`	Lists known workspaces, path, runtime, and current marker.
`sero workspace info [id]`	Shows path, runtime, description, hints, tags.
`sero workspace create <name> [--parent <path>]`	Creates and registers a workspace; reconciles app runtimes; broadcasts workspace change.
`sero workspace add-folder <path> [--name <display-name>]`	Registers an existing folder; path resolves from current cwd; reconciles app runtimes.
`sero workspace open <id>`	Expands/opens a workspace in Sero.
`sero workspace close <id>`	Closes workspace; re-add with `add-folder`; cannot close `global`.
`sero workspace mount-plugin <path> [--name <display-name>] [--yes]`	Attaches a Sero plugin source folder as an Explorer root only; recreates running container.

`devserver`

See Containers and Dev Servers.

Command	Output / side effects
`sero devserver list`	Lists registered servers for current workspace as `id [status] name — url (port n)`.
`sero devserver register --name <name> --port <port> --command <cmd> [--framework <name>]`	Adds an in-memory registry entry and returns a host-reachable URL.
`sero devserver stop <id>`	Stops the listener in a container runtime. On Host, it terminates a server started by Sero, but it does not kill a process that was only registered.

`app`

See Browser and Capture. app commands are UI-backed and depend on the renderer app panel being visible.

Command	Output / side effects
`sero app list`	Lists app ids, names, scope, and `[no UI]` when applicable.
`sero app open <appId\|name>`	Switches active Sero app.
`sero app active`	Prints active app id.
`sero app info <appId\|name>`	JSON app metadata.
`sero app screenshot [--app <id\|name>] [--save <path>]`	Returns PNG image block; optional file save relative to cwd.
`sero app screenshot --selector <sel> --full`	Captures a full long scroll container.
`sero app screenshot-around --text "text" [--within <sel>] [--save <path>]`	Scrolls to text, confirms the target, then captures the app.
sero app click <selector>--ref <ref>--x <n> --y <n>	Clicks and returns a post-action screenshot.
sero app type "<text>"[--selector <sel>\|--ref <ref>]	Types into focused/selected input and returns screenshot.
sero app scroll --y <px> [--x <px>][--selector <sel>\|--ref <ref>][--at-x <n> --at-y <n>]	Scrolls the selected or nearest scroll container and reports the actual target.
sero app scroll-to --selector <sel>--text "text"\|--ref <ref>[--within <sel>\|--container "text"]	Scrolls a target element/text into view and reports visibility/rect.
`sero app select <selector\|--ref ref>`	Focuses/selects element, returns screenshot.
`sero app hover <selector\|--ref ref>`	Hovers element, returns screenshot.
sero app inspect [<selector>][--x <n> --y <n>\|--ref <ref>][--visible-only] [--interactive-only] [--limit <n>]	Returns JSON inspection data with temporary refs; no post-action screenshot.
`sero app visible --text "text"\|--selector <sel>\|--ref <ref>`	Checks whether an element/text is visible.
`sero app snapshot`	Returns visible headings, sections, buttons, links, and inputs as JSON.
`sero app scroll-containers`	Lists scrollable containers with refs, dimensions, scrollTop, and max scroll.
`sero app get-text [--app <id\|name>] [<selector>\|--selector <sel>] [--visible-only] [--around "text"]`	Returns text content, optionally limited to visible or nearby text.
`sero app record start`	Starts 2 FPS capture.
`sero app record status`	Shows recording state/duration.
`sero app record stop [--save <path>]`	Saves MP4 or PNG frame folder. Default: `<workspace>/sero-recordings/`.
`sero app preview <url>`	Opens a dev-server URL in Explorer's editor preview so `app screenshot/record` can capture it.

`browser`

See Browser and Capture. browser controls the visible in-app browser tabs, not arbitrary hidden browser automation.

Command	Output / side effects
`sero browser list [--all]`	Lists loaded tabs for current workspace or all workspaces.
`sero browser open <url>`	Opens an HTTP(S) tab in the current workspace.
`sero browser close <tab-id>`	Closes a tab owned by the current workspace.
`sero browser navigate <tab-id> <url>`	Navigates a current-workspace tab to HTTP(S) URL.
`sero browser get-text [--tab <id>]`	Returns title, URL, and plain page text; defaults to active tab.
`sero browser screenshot [--tab <id>]`	Returns PNG image block; defaults to active tab.

Tabs are workspace-owned and loaded lazily through the browser panel. Explicit tab ids cannot cross workspace boundaries.

`editor`

Command	Output / side effects
`sero editor read <path>`	Reads a file from the container when available, otherwise host workspace.
`sero editor list [dir]`	Lists directory entries, default `/workspace`.

`terminal`

Command	Output / side effects
`sero terminal read [lines]`	Returns recent workspace terminal output. Default 100; maximum 500 with truncation notice.

`vcs`

Command	Output / side effects
`sero vcs status`	Shows changed files and conflicts, or clean state.
`sero vcs log [--limit N]`	Recent change ids/descriptions/bookmarks; default 10.
`sero vcs diff <from> [to]`	Diff text between revisions.
sero vcs checkpoint [message]sero vcs checkpoint --message <msg>	Creates a manual checkpoint when files changed.
`sero vcs push [branch]`	Pushes to remote.
`sero vcs fetch [remote]`	Fetches remote changes.
`sero vcs remote [list]`	Lists remotes.
`sero vcs remote add <name> <url>`	Adds remote.
`sero vcs remote remove <name>`	Removes remote.
`sero vcs bookmarks`	Lists bookmarks.

`session` and`set-title`

Command	Output / side effects
`sero session info`	Workspace, session id/name, model/provider, thinking level, tokens, cost, request count, streaming state, active turn.
`sero set-title [--if-unnamed] <text>`	Sets a session title of up to 48 characters. `--if-unnamed` keeps an existing title.

`appstate`

Command	Output / side effects
`sero appstate read <path>`	Reads app state JSON and prints formatted JSON.
`sero appstate write <path> --json <json>`	Parses JSON and writes app state.

appstate is JSON state only; it is not UI automation.

`artifacts`

Command	Output / side effects
`sero artifacts list [--session <id>]`	Lists artifacts with id, type, title, timestamp, optional container path.
`sero artifacts save --title <t> --type <screenshot\|log\|video> [--path <p>]`	Adds registry entry for current session/workspace.
`sero artifacts remove <id>`	Removes artifact registry entry.
`sero artifacts summary [--session <id>]`	Builds PR-style artifact summary.

Plugin-bridged commands

Sero bridges selected extension tools and commands into sero-cli so agents use one command surface.

Core tools such as todo, memory, question, cron, git_manager, and others are allowlisted.
Plugin packages can opt into bridging with sero.plugin.bridgeTools metadata.
research is explicitly not bridged.
Admin tooling is intentionally not agent-accessible through this bridge.
Session-owned bridged commands are visible only for the matching active session scope.
For JSON-heavy bridged commands, run sero help <command> first and follow the reported schema.

ON THIS PAGE

#Sero CLI

#Scope and syntax

#Batch behavior

#Built-in namespaces

#workspace

#devserver

#app

#browser

#editor

#terminal

#vcs

#session andset-title

#appstate

#artifacts

#Plugin-bridged commands

#Related docs