scirepl-playwright

scirepl-playwright is a skill for Claude Code, Codex from s243a/SciREPL-MCP. It costs 27 tokens per session (677 once invoked), scanned A, original, MIT.

A workflow for automating SciREPL workbooks in a dedicated Chromium browser session. SciREPL is an interactive environment for running and viewing workbook code and outputs.

In plain words
What is it for?
Use it to run, inspect, or troubleshoot SciREPL workbooks, especially when visible output, warnings, browser behaviour, or screenshots matter.
Why use it?
It keeps each workbook task in one browser session and provides a defined way to install packages, run cells, inspect results, and collect screenshots.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to run, inspect, or troubleshoot SciREPL workbooks, especially when visible output, warnings, browser behaviour, or screenshots matter.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/s243a/scirepl-mcp/scirepl-playwright
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.

Any agent
npx skills add s243a/SciREPL-MCP --skill scirepl-playwright
Clone the repo
git clone --depth 1 https://github.com/s243a/SciREPL-MCP

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for scirepl-playwright

README.md
[![agentmods](https://agentmods.dev/badge/skills/s243a/scirepl-mcp/scirepl-playwright/github.svg)](https://agentmods.dev/skills/s243a/scirepl-mcp/scirepl-playwright)
Your own site
<a href="https://agentmods.dev/skills/s243a/scirepl-mcp/scirepl-playwright"><img src="https://agentmods.dev/badge/skills/s243a/scirepl-mcp/scirepl-playwright/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for scirepl-playwright

Your own site · 80×15
<a href="https://agentmods.dev/skills/s243a/scirepl-mcp/scirepl-playwright"><img src="https://agentmods.dev/badge/skills/s243a/scirepl-mcp/scirepl-playwright.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 677 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00027 $0.00677
Opus 5 $0.00014 $0.00338
Sonnet 5 $0.00005 $0.00135
Haiku 4.5 $0.00003 $0.00068

Measured 9d ago against content hash 971253158537, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

scirepl-playwright 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 9d 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.

packages/playwright-driver/skills/scirepl-playwright/SKILL.md · 77 lines

How it starts

The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SciREPL Playwright workflow

Use this skill when a task requires running, inspecting, or troubleshooting a SciREPL workbook through the Playwright driver.

Session rule

Complete one workflow in one scirepl_* browser session. A separate general browser or Playwright MCP normally has different storage and in-memory state. Only treat another client as the same browser when it explicitly attaches to the CDP URL with connectOverCDP.

Standard workflow

1. scirepl_connect
2. scirepl_install_package or scirepl_import_file, when needed
3. scirepl_run_all_cells_ui for visible testing, or scirepl_run_all_cells for batch execution
4. scirepl_get_cell_outputs_detailed
5. scirepl_get_visible_state and scirepl_screenshot for supporting evidence
6. scirepl_disconnect

Prefer scirepl_run_all_cells_ui when the user mentions the menu, visible output, warnings, browser behaviour, or screenshots.

Diagnosing output

  1. Reproduce the issue through the requested run path.
  2. Read scirepl_get_cell_outputs_detailed; it combines app-model output with DOM-rendered text and includes Out [n] labels where present.
  3. Capture a screenshot for layout and rendering evidence.
  4. Use console messages from scirepl_get_visible_state as supporting evidence, not as a substitute for the visible cell result.
  5. If the user sees output that the tool omits, treat that as an instrumentation gap and inspect the driver before concluding the output is absent.

Browser-state investigation

For stale assets, cache, storage, workers, or PWA-update issues:

1. scirepl_connect(debugMode: true, remoteDebuggingPort: 9223)
2. scirepl_get_browser_debug_info
3. Continue the ordinary workflow in that same session
4. If necessary, attach a CDP-capable debugger to the reported URL

Opening the debugger URL as a web page is not equivalent to attaching through CDP.

Supported kernels

Python, R, TypR, SWI-Prolog, Bash, JavaScript, Lua, and ClojureScript.

Local package iteration

Read the full file on GitHub · 77 lines

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. 9d ago First seen · 77 lines · 27 tokens per session scan A 971253158537

Subscribe to this mod's changes

scirepl-playwright is a skill published in the GitHub repository s243a/SciREPL-MCP (0 stars, last pushed today), licensed MIT. It adds 27 tokens to every session and 677 once invoked, about $0.0001 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 2026-08-31.

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