structai

structai is a skill for Claude Code, Codex from black-yt/skills. It costs 55 tokens per session (3,113 once invoked), scanned A, original, no licence file.

A guide for building, testing, and debugging LLM applications with the StructAI Python toolkit. LLM applications are software that sends requests to language models and uses their responses.

In plain words
What is it for?
Use it when working with StructAI's LLMAgent calls, structured outputs, LLM judging, batch concurrency, file or PDF utilities, text parsing, private-IP network exceptions, or timeout wrappers.
Why use it?
It helps you handle common tasks around model calls, structured responses, testing, concurrent batches, files, text, network settings, and time limits in one project workflow.

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/black-yt/skills/structai
Any agent
npx skills add black-yt/skills --skill structai
Clone the repo
git clone --depth 1 https://github.com/black-yt/skills

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 structai

README.md
[![agentmods](https://agentmods.dev/badge/skills/black-yt/skills/structai.svg)](https://agentmods.dev/skills/black-yt/skills/structai)
Your own site
<a href="https://agentmods.dev/skills/black-yt/skills/structai"><img src="https://agentmods.dev/badge/skills/black-yt/skills/structai.svg" alt="Measured on agentmods" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,113 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 $0.00055 $0.03113
Opus 5 $0.00028 $0.01556
Sonnet 5 $0.00011 $0.00623
Haiku 4.5 $0.00006 $0.00311

Measured 5d ago against content hash 3e63e8bc28a1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

structai 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 5d 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 -fsSL https://raw.githubusercontent.com/black-yt/structai/main/pyproject.toml | sed -n '1,80p'
structai/SKILL.md · 311 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. 5d ago First seen · 311 lines · 55 tokens per session scan A 3e63e8bc28a1

Subscribe to this mod's changes

structai is a skill published in the GitHub repository black-yt/skills (10 stars, last pushed 11d ago), with no licence file. It adds 55 tokens to every session and 3,113 once invoked, about $0.0003 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 2026-08-31.