webviewer-build

webviewer-build is a skill for Claude Code, Codex, Cursor from petrowsky/agentic-fm. It costs 107 tokens per session (3,201 once invoked), scanned A, original, no licence file.

A toolkit for building a self-contained HTML, CSS, and JavaScript web application inside a FileMaker Web Viewer. FileMaker is a database application, and a Web Viewer displays web content within its layouts.

In plain words
What is it for?
It is for creating Web Viewer apps with FileMaker-themed styling and two-way data flow between the web interface and FileMaker.
Why use it?
It helps when a FileMaker interface needs richer web-based behaviour while still exchanging data with FileMaker.

Skill for Claude CodeCodexCursor

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/petrowsky/agentic-fm/webviewer-build
Any agent
npx skills add petrowsky/agentic-fm --skill webviewer-build
Clone the repo
git clone --depth 1 https://github.com/petrowsky/agentic-fm

Made for: Claude Code, Codex, Cursor.

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 webviewer-build

README.md
[![agentmods](https://agentmods.dev/badge/skills/petrowsky/agentic-fm/webviewer-build.svg)](https://agentmods.dev/skills/petrowsky/agentic-fm/webviewer-build)
Your own site
<a href="https://agentmods.dev/skills/petrowsky/agentic-fm/webviewer-build"><img src="https://agentmods.dev/badge/skills/petrowsky/agentic-fm/webviewer-build.svg" alt="Measured on agentmods" height="20"></a>
Per session 107 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,201 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin unknown 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 $0.00107 $0.03201
Opus 5 $0.00053 $0.01600
Sonnet 5 $0.00021 $0.00640
Haiku 4.5 $0.00011 $0.00320

Measured 4d ago against content hash 58aa44758c3c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

webviewer-build scanned grade A with 1 finding 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 4d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s -X POST -H "Content-Type: application/json" \
.cursor/skills/webviewer-build/SKILL.md · 323 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 4d ago First seen · 323 lines · 107 tokens per session scan A 58aa44758c3c

Subscribe to this mod's changes

webviewer-build is a skill published in the GitHub repository petrowsky/agentic-fm (92 stars, last pushed 20d ago), with no licence file. It adds 107 tokens to every session and 3,201 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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