verify

verify is a skill for Claude Code from objectstack-ai/objectstack. It costs 28 tokens per session (548 once invoked), scanned A, original, Apache-2.0.

A procedure for checking metadata editor changes in a browser using a local preview gallery. It runs the React interface with sample data and no backend, so server requests fall back to built-in defaults.

In plain words
What is it for?
Use it to start the console preview gallery, open one editor or all editors, and drive the result with Playwright, a tool for automating browsers.
Why use it?
It provides a repeatable way to see whether editors render and behave correctly without setting up a server or depending on remote services.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Good fit Use it to start the console preview gallery, open one editor or all editors, and drive the result with Playwright, a tool for automating browsers.

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Install with agentmods
npx agentmods add skills/objectstack-ai/objectstack/verify
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 objectstack-ai/objectstack --skill verify
Clone the repo
git clone --depth 1 https://github.com/objectstack-ai/objectstack

Made for: Claude Code.

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 verify

README.md
[![agentmods](https://agentmods.dev/badge/skills/objectstack-ai/objectstack/verify/github.svg)](https://agentmods.dev/skills/objectstack-ai/objectstack/verify)
Your own site
<a href="https://agentmods.dev/skills/objectstack-ai/objectstack/verify"><img src="https://agentmods.dev/badge/skills/objectstack-ai/objectstack/verify/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 verify

Your own site · 80×15
<a href="https://agentmods.dev/skills/objectstack-ai/objectstack/verify"><img src="https://agentmods.dev/badge/skills/objectstack-ai/objectstack/verify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 548 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 $0.00028 $0.00548
Opus 5.5 $0.00011 $0.00219
Sonnet 5.5 $0.00006 $0.00110
Haiku 4.5 $0.00003 $0.00055

Measured 2d ago against content hash 97c3545bb9d7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

verify 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 2d 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.

ui/.claude/skills/verify/SKILL.md · 51 lines

What it actually says

Verifying metadata-admin designer changes (no backend needed)

The console ships a dev-only gallery that renders every registered metadata designer (packages/app-shell/src/views/metadata-admin/previews/*) with representative sample drafts, in edit mode, with zero backend:

cd apps/console && pnpm exec vite --port <free-port> --strictPort
# open http://localhost:<free-port>/preview-gallery.html
# isolate one designer: /preview-gallery.html?only=flow   (or ?only=dashboard, page, …)

Sample drafts live in apps/console/src/preview-samples.ts (keyed by metadata type: flow, workflow, object, …). Server-driven affordances (e.g. the flow palette's GET /api/v1/automation/actions) fail fetch and fall back to their hardcoded defaults — that IS the offline path, not an error.

Driving it headlessly

The chrome-devtools MCP may lack a Chrome binary in remote sessions. Use the repo's own Playwright instead — the pre-installed executable is the stable alias /opt/pw-browsers/chromium. ⛔ Never copy the versioned chromium-NNNN/chrome-linux/chrome spelling out of a probe: the alias is what survives an image bump, and a dead versioned path reads as "no browser here" when the browser is in fact present.

import { chromium } from '@playwright/test';
const browser = await chromium.launch({ executablePath: '/opt/pw-browsers/chromium' });

Gotcha: a driver script must live inside the repo (e.g. node_modules/.drive.mjs — ignored by git) so Node resolves @playwright/test; a script in /tmp won't resolve workspace deps.

Useful selectors: cmdk internals are addressable via [cmdk-item], [cmdk-group-heading], [cmdk-empty], [cmdk-item][data-selected="true"]; flow canvas node cards match .group.absolute.

Cleanup: kill only the vite server you started (kill $(lsof -ti tcp:<port>)).

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. 2d ago First seen · 51 lines · 28 tokens per session scan A 97c3545bb9d7

Subscribe to this mod's changes

verify is a skill published in the GitHub repository objectstack-ai/objectstack (76 stars, last pushed today), licensed Apache-2.0. It adds 28 tokens to every session and 548 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-10-26.

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