Usage
September 21, 2026 ยท View on GitHub
Generated by scripts/gen_usage.py from the MCP tool schemas and the CLI parser. Do not edit by
hand; run the script instead.
jev-ra 0.1.2
MCP tools
browser_act
Take one decided step towards an instruction on the current page.
| argument | type | required | default |
|---|---|---|---|
instruction | str | yes | - |
values | object[str] | none | no | - |
browser_click
Click one observed element by its ref.
| argument | type | required | default |
|---|---|---|---|
ref | str | yes | - |
browser_close
Close the browser session held by this server.
Takes no arguments.
browser_extract
Pull structured page data from the DOM: text, elements, links, tables or main.
| argument | type | required | default |
|---|---|---|---|
mode | str | no | text |
browser_observe
List the observed controls and the visible text of the current page.
| argument | type | required | default |
|---|---|---|---|
max_elements | int | none | no | - |
browser_open
Open a URL in the shared browser session and summarise the page.
| argument | type | required | default |
|---|---|---|---|
url | str | yes | - |
browser_press
Press Enter, Escape or Tab.
| argument | type | required | default |
|---|---|---|---|
key | str | yes | - |
browser_run
Pursue a whole goal on the current page. Supply values for anything that must be typed.
| argument | type | required | default |
|---|---|---|---|
goal | str | yes | - |
values | object[str] | none | no | - |
max_steps | int | none | no | - |
browser_screenshot
Capture the current viewport as a JPEG.
Takes no arguments.
browser_scroll
Scroll the page one viewport step up or down.
| argument | type | required | default |
|---|---|---|---|
direction | str | no | down |
browser_search
Search the web, read the best results in parallel tabs, and rank them against the goal.
| argument | type | required | default |
|---|---|---|---|
query | str | yes | - |
goal | str | none | no | - |
max_pages | int | no | 3 |
browser_select
Select an observed dropdown option by its value or label.
| argument | type | required | default |
|---|---|---|---|
ref | str | yes | - |
option | str | yes | - |
browser_type
Type text into one observed field by its ref.
| argument | type | required | default |
|---|---|---|---|
ref | str | yes | - |
text | str | yes | - |
browser_wait
Wait a moment and observe again.
Takes no arguments.
Command line
usage: jev-ra [-h] [--version] COMMAND ...
A fast browser-use layer for CLI coding agents.
positional arguments:
COMMAND
run pursue a goal from a URL until it is done or escalates
open open a URL and keep the session for later commands
observe list the controls and text of the open page
extract pull structured data out of the open page
act take one decided step on the open page
click click one observed element
type type into one observed field
select select an observed dropdown option
scroll scroll the open page
press press Enter, Escape or Tab
wait wait a moment and observe again
screenshot save a JPEG of the viewport
close close the session kept by `open`
mcp run the MCP stdio server
skill print the agent guide, for saving as a skill file
install register jev-ra as an MCP server with a coding agent
doctor check the key, the endpoint, Chrome and one live decision
search search the web and read the best results
bench time the offline fixtures, and the live tasks with --live
corpus run the real-site corpus
options:
-h, --help show this help message and exit
--version show program's version number and exit