orin-shadow-inventor

orin-shadow-inventor is a skill for Claude Code, Codex from autonomous-ai/autonomous-workshop. It costs 47 tokens per session (624 once invoked), scanned A, original, Apache-2.0.

A design skill for making hand-powered objects that cast changing shadows, using printed shapes or rotating parts. It focuses on the physical object, the light, and the projected image together.

In plain words
What is it for?
For designing printed shadow-play mechanisms such as masks, shutters, fins, and rotating parts, while checking light direction, projection distance, openings, thickness, and alignment.
Why use it?
It helps turn a desired shadow effect into a buildable object with clear movements and reliable geometry, without depending on electronics or a particular camera setup.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Codex.

Good fit For designing printed shadow-play mechanisms such as masks, shutters, fins, and rotating parts, while checking light direction, projection distance, openings, thickness, and alignment.

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Install with agentmods
npx agentmods add skills/autonomous-ai/autonomous-workshop/orin-shadow-inventor
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 autonomous-ai/autonomous-workshop --skill orin-shadow-inventor
Clone the repo
git clone --depth 1 https://github.com/autonomous-ai/autonomous-workshop

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 orin-shadow-inventor

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/autonomous-ai/autonomous-workshop/orin-shadow-inventor"><img src="https://agentmods.dev/badge/skills/autonomous-ai/autonomous-workshop/orin-shadow-inventor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 624 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 $0.00047 $0.00624
Opus 5 $0.00023 $0.00312
Sonnet 5 $0.00009 $0.00125
Haiku 4.5 $0.00005 $0.00062

Measured 10d ago against content hash 7391fc33d2c4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

orin-shadow-inventor 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 10d 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.

inventors/orin-shadow/skills/orin-shadow-inventor/SKILL.md · 55 lines

How it starts

The opening of the file, as written. The whole thing — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Orin Shadow Inventor

Use the exact Inventor identity and Taste embedded in the developer instructions of .codex/agents/orin-shadow.toml as the creative constitution. Do not rediscover or substitute identity from another file. Read the current STAGE.json, accept only a bounded task from the root Workshop Manager, and return precise evidence and artifacts.

Method

Design the held object and its cast image together. Begin with the desired shadow event, then derive an inspectable caster and one obvious hand motion that produces it. Treat light direction, projection plane, distance band, state angles, registration cues, aperture widths, wall thickness, self-shadowing, and occluder travel as product geometry rather than presentation styling.

Prefer broad planar masks, guarded rotating shutters, short stiff fins, and support-free subassemblies. Make the neutral object worth holding even before illumination. Reject tricks that depend on a render camera, painted contrast, an impractically exact point light, or unverified transparent material.

Stage contributions

  • Invent: Explore at least three materially different shadow mechanisms, not three motifs on one cutout. Research or deliberately establish the light model and projection geometry. Seal the chosen solid form, shadow states, interaction, envelope, print stance, wall/aperture minima, distance range, alignment cue, and every component's dimensions, placement, motion, and interfaces precisely enough that Make does not invent the optical mechanism.
  • Make: Use shared Workshop CAD skills to build the exact caster and motion. Derive orthographic or ray-cast shadow evidence from the sealed geometry at every promised state and representative in-between poses. Inspect occlusion, collisions, stops, capture, assembly, minimum walls, narrow apertures, and support needs. Keep diagnostic masks separate from the required chromatic product render.
  • Playtest: Challenge recognition across the stated distance and alignment range, continuous transition quality, first-use control discovery, reset, mechanical containment, and printability. Distinguish deterministic digital projection evidence from brightness, edge softness, room-light tolerance, physical fit, and human delight that were not actually observed.
  • Release: Make the manual a tiny theatre guide: show the exact object, light direction, wall distance, alignment cue, named shadow states, one decisive action, reset, care, and honest optical limitations. Use only product-derived images for claimed geometry.

Read the full file on GitHub · 55 lines

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 · 55 lines · 47 tokens per session scan A 7391fc33d2c4

Subscribe to this mod's changes

orin-shadow-inventor is a skill published in the GitHub repository autonomous-ai/autonomous-workshop (11 stars, last pushed today), licensed Apache-2.0. It adds 47 tokens to every session and 624 once invoked, about $0.0002 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 2026-08-30.

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