infographic-describer

infographic-describer is a skill for Codex from OpenLinkSoftware/ai-agent-skills. It costs 108 tokens per session (1,385 once invoked), scanned C, original, MIT.

An RDF metadata generator for images, videos, and web pages stored in WebDAV. It uses SHACL shapes, which define the required data fields, to describe each file.

In plain words
What is it for?
Use it to list files in a WebDAV directory, classify them, check existing RDF descriptions, inspect thumbnails, and create RDF-Turtle metadata.
Why use it?
It avoids manually writing structured metadata and helps identify files that already have descriptions or thumbnails.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /Users/kidehen/Documents/RDF_DATA/shacl-shapes/.

Good fit Use it to list files in a WebDAV directory, classify them, check existing RDF descriptions, inspect thumbnails, and create RDF-Turtle metadata.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.

Made for: 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 infographic-describer

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/openlinksoftware/ai-agent-skills/infographic-describer"><img src="https://agentmods.dev/badge/skills/openlinksoftware/ai-agent-skills/infographic-describer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 108 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,385 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 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 $0.00108 $0.01385
Opus 5 $0.00054 $0.00692
Sonnet 5 $0.00022 $0.00277
Haiku 4.5 $0.00011 $0.00138

Measured 10d ago against content hash 494915c4827c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade C, and why

infographic-describer scanned grade C with 2 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 10d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/describe-infographics.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

curl -sL "https://www.openlinksw.com/data/{directory}/" | python3 -c "

Makes network callslowCapability

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

curl -sL "https://www.openlinksw.com/data/{directory}/" | python3 -c "
infographic-describer/SKILL.md · 146 lines

How it starts

The opening of the file, as written. The whole thing — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Infographic Describer

Generate RDF-Turtle descriptions for files in a WebDAV-hosted directory using a SHACL shape as the property contract.

Workflow

Step 1: Discover Files

List the target WebDAV directory to enumerate files:

curl -sL "https://www.openlinksw.com/data/{directory}/" | python3 -c "
import sys, re
html = sys.stdin.read()
files = re.findall(r'title=\"File - ([^\"]+)\"', html)
for f in files:
    print(f)
"

Classify by extension: .pngschema:ImageObject, .mp4schema:VideoObject, .htmlschema:WebPage.

Step 2: Probe Describe Endpoint

Check which files have existing RDF data in the triplestore. Use the SPARQL DESCRIBE endpoint:

import urllib.parse, urllib.request

iri = f'https://www.openlinksw.com/DAV/www2.openlinksw.com/data/{directory}/{stem}.{ext}'
query = f'DESCRIBE <{iri}>'
url = 'http://www.openlinksw.com/sparql?query=' + urllib.parse.quote(query) + '&output=text%2Fn3'

req = urllib.request.Request(url, headers={'Accept': 'text/n3, */*'})
resp = urllib.request.urlopen(req, timeout=30)
data = resp.read().decode()
has_data = 'Empty' not in data and len(data.strip()) > 50

Step 3: Probe Thumbnails

Check for thumbnails using the content-explorer pattern:

https://www.openlinksw.com/data/content-explorer/thumbnails/{category}-{stem}.avif

Where {category} is the directory name (e.g., infographics). Probe with HTTP HEAD:

curl -sL -o /dev/null -w "%{http_code}" "$url"

Only files with 200 have thumbnails.

Step 4: Generate Descriptions

For each file, construct RDF triples using the SHACL shape properties:

Property Source Fallback
rdf:type File extension schema:CreativeWork
schema:name Filename stem (underscores/hyphens → spaces)
schema:description Derived from name or describe page "Infographic: {name}"
schema:encodingFormat Content type from listing Map extension to MIME
schema:contentUrl Full DAV URL
schema:thumbnailUrl Probe result (only if 200) Omit
schema:category Directory-based category IRI Default to #Infographic
wdrs:describedby Constructed describe endpoint URL
schema:dateCreated Describe page (if available) Omit
schema:dateModified Describe page (if available) Omit

Read the full file on GitHub · 146 lines

Files

What ships with it

3 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. 10d ago First seen · 146 lines · 108 tokens per session scan C 494915c4827c

Subscribe to this mod's changes

infographic-describer is a skill published in the GitHub repository OpenLinkSoftware/ai-agent-skills (38 stars, last pushed yesterday), licensed MIT. It adds 108 tokens to every session and 1,385 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, 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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