Borrowing it
Nothing to install: this file belongs to skyciv/skyciv-ai-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/skyciv/skyciv-ai-skills/main/CLAUDE.mdgit clone --depth 1 https://github.com/skyciv/skyciv-ai-skillsWrote 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.
[](https://agentmods.dev/instructions/skyciv/skyciv-ai-skills/claude-md)<a href="https://agentmods.dev/instructions/skyciv/skyciv-ai-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/skyciv/skyciv-ai-skills/claude-md/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.
<a href="https://agentmods.dev/instructions/skyciv/skyciv-ai-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/skyciv/skyciv-ai-skills/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.02296 | $0.02296 |
| Opus 5 | $0.01148 | $0.01148 |
| Sonnet 5 | $0.00459 | $0.00459 |
| Haiku 4.5 | $0.00230 | $0.00230 |
Grade A, and why
skyciv-ai-skills CLAUDE.md 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
What this repository is
This is a documentation/prompt-engineering repository, not a codebase with source files to build, lint, or test. It's a library of "skills" — structured Markdown files that teach an AI agent how to correctly call the SkyCiv API (structural engineering modeling, analysis, drawing, and reporting) instead of guessing at request shapes and units. There is no build system, package manifest, linter, or test suite — the only artifacts are SKILL.md files and their supporting assets.
Repository structure
Each top-level folder is one self-contained skill:
<skill-name>/
SKILL.md # required — skill instructions and API reference
assets/ # optional — example inputs, catalogues, templates
Current skills: skyciv-api-v3, s3d-api, s3d-apps, analysis-results, cloudcad-api, load-gen-api, load-combinations, run-quick-design, baseplate, renderer, schema-agent, section-selector, qa-engineer. There is also a prototypes/ folder holding runnable example apps built on these skills (Node/Express), not SKILL.md files — currently prototypes/glass-balustrade-configurator and prototypes/truss-designer. Note: a reporting-engineer skill is planned but the folder does not yet exist in this repo — don't assume it does.
Some SKILL.md files have YAML frontmatter (name, description, argument-hint) so agent harnesses can discover them; others (e.g. skyciv-api-v3, s3d-api, cloudcad-api, load-gen-api, run-quick-design) are documentation-only and omit it. Match the style of the skill you're editing.
How the skills compose
Skills are designed to be chained in a typical structural workflow:
schema-agent → interpret a floor plan into a structural schema
↓
s3d-api / cloudcad-api → build the 3D model / 2D drawing
↓
load-gen-api → pull wind / snow / seismic loads for the site
↓
load-combinations → factor those loads into code-correct combinations on the model
↓
s3d-api → solve
↓
analysis-results → fetch and interpret the results, then run-quick-design for member/connection checks
↓
renderer → visualize the model and results
↓
qa-engineer → independent review of the results
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.
- 7d ago Changed · +6 lines · +115 tokens per session 37aa19a3778c
- 11d ago First seen · 98 lines · 2,181 tokens per session scan A 3724f421703b
skyciv-ai-skills CLAUDE.md is an instructions file published in the GitHub repository skyciv/skyciv-ai-skills (7 stars, last pushed 8d ago), licensed MIT. It adds 2,296 tokens to every session, about $0.0115 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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