playwright-cli

A command-line tool for controlling a web browser, viewing a page, and interacting with its buttons, forms, and other elements.

In plain words
What is it for?
Use it to fill in forms, test web interfaces, and operate logged-in web applications from a terminal.
Why use it?
It lets you automate browser tasks and check what happened after each action without manually using the browser.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/lexler/skill-factory/playwright-cli
Any agent
npx skills add lexler/skill-factory --skill playwright-cli
Clone the repo
git clone --depth 1 https://github.com/lexler/skill-factory

Made for: Claude Code, Codex.

Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 768 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00051 $0.00768
Opus 5 $0.00026 $0.00384
Sonnet 5 $0.00010 $0.00154
Haiku 4.5 $0.00005 $0.00077

Measured 3d ago against content hash 85e7a440f611, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

playwright-cli scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

output_skills/developer-tools/playwright-cli/SKILL.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

STARTER_CHARACTER = 🎭

playwright-cli

Driving a browser from the shell. Each command prints the executed Playwright code, the page state, and a fresh snapshot.

The loop

Snapshot to see the page, act on an element by its ref, snapshot again.

playwright-cli snapshot          # accessibility tree with [ref=e8] handles
playwright-cli click e8          # act on a ref
playwright-cli snapshot          # confirm the result

Refs are not stable. Any DOM change renumbers them — re-snapshot before acting on a page that just changed. Acting on a stale ref hits the wrong element or none.

For a large page, snapshot a region instead of the whole tree: snapshot e34 or snapshot --depth=4.

Targeting elements

A target is one of three things — a ref, a CSS selector, or a Playwright locator:

playwright-cli click e8
playwright-cli click ".todo-list .toggle"
playwright-cli click "getByRole('button', { name: 'Submit' })"
playwright-cli click "getByText('buy milk')"

A bare descriptive phrase is not a target. click "the submit button" is parsed as a CSS selector and fails with "does not match any elements". Prefer refs; reach for getByRole/getByText when a ref won't survive a re-render.

Key commands

playwright-cli goto https://example.com
playwright-cli fill e5 "[email protected]" --submit   # clear, type, then Enter — one step
playwright-cli type "free text into the focused element"
playwright-cli press Enter                            # also: Tab, Escape, ArrowDown
playwright-cli select e9 "option-value"
playwright-cli check e12        # uncheck / hover / dblclick likewise
playwright-cli screenshot       # saves to .playwright-cli/

fill works on React/controlled inputs where raw DOM events don't. After filling, the field must blur before dependent values (totals, validation) update — --submit or a following press Tab does that.

Inspecting and verifying

playwright-cli eval "el => el.getAttribute('data-testid')" e5   # attributes the snapshot hides
playwright-cli console                                          # page console messages
playwright-cli requests                                         # network log, then `request <n>`

Read the full file on GitHub · 79 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 79 lines · 51 tokens per session scan A 85e7a440f611

Subscribe to this mod's changes

playwright-cli is a skill published in the GitHub repository lexler/skill-factory (231 stars, last pushed 7d ago), licensed Apache-2.0. It adds 51 tokens to every session and 768 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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