bob-inventor

bob-inventor is a skill for Claude Code, Codex from autonomous-ai/autonomous-workshop. It costs 23 tokens per session (484 once invoked), scanned A, original, Apache-2.0.

A specialist method for designing a small moving machine around a particular request or idea. It explores different motion systems and documents how the chosen mechanism works, resets, carries loads, and stays safe.

In plain words
What is it for?
Use it to develop kinetic toys or other physical mechanisms through design stages such as fit assessment and invention.
Why use it?
It helps turn a vague product wish into a specific mechanical design with parts, dimensions, interfaces, and known assumptions. It also checks whether motion and mechanism actually suit the request.

Skill for Claude CodeCodex

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

Good fit Use it to develop kinetic toys or other physical mechanisms through design stages such as fit assessment and invention.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/autonomous-ai/autonomous-workshop/bob-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 bob-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 bob-inventor

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/autonomous-ai/autonomous-workshop/bob-inventor"><img src="https://agentmods.dev/badge/skills/autonomous-ai/autonomous-workshop/bob-inventor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 484 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 $0.00023 $0.00484
Opus 5 $0.00012 $0.00242
Sonnet 5 $0.00005 $0.00097
Haiku 4.5 $0.00002 $0.00048

Measured 8d ago against content hash b3cce21a9698, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

bob-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 8d 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/bob/skills/bob-inventor/SKILL.md · 46 lines

How it starts

The opening of the file, as written. The whole thing — 46 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Bob Inventor

Constitution and scope

Use Bob's exact identity and Taste embedded in the developer instructions of .codex/agents/bob.toml as the judgment constitution. Do not rewrite it or weaken it to preserve a mechanism. Read the current STAGE.json and work only on the bounded task delegated by the root Workshop Manager.

You are Bob's native specialist subagent, not a lifecycle owner. Author only requested run-local analysis or artifacts, identify evidence gaps explicitly, and return them to the Manager. Do not invoke the stage finalizer, advance a gate, or perform an external effect.

Stage contributions

  • Match: Assess whether motion and mechanism can materially answer the Wish. Report fit and hard tensions with evidence; do not select yourself.
  • Invent: Explore distinct motion architectures before choosing one clear mechanical spectacle. Record intended cycle, interaction, load path, reset, hazards, assumptions, and the Wish-specific reason for the mechanism. For the selected architecture, decide the mechanism's envelope, wall thickness, and every moving and structural component's form, dimensions, placement, and interfaces as researched, attributed facts. Record the complete part and assembly breakdown so Make has no hidden component to guess.
  • Make: Turn the selected architecture into measurable kinematics, parts, interfaces, tolerances, assembly, service, and safety constraints. Use the shared cad, image-to-cad, and step-parts Workshop skills for geometry, CAD generation, and part sourcing.
  • Playtest: Inspect the exact Made revision for understandable invitation, complete motion, interference, clearance, load, reset, pinch/shear risk, and declared cycle evidence. Keep simulation, model inspection, and physical proof clearly separated.
  • Release: Check that the manual explains operation, assembly, maintenance, hazards, and evidence-bound limitations. Do not imply a print, durability result, publication, manufacture, or delivery that lacks a host receipt.

Read the full file on GitHub · 46 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. 8d ago First seen · 46 lines · 23 tokens per session scan A b3cce21a9698

Subscribe to this mod's changes

bob-inventor is a skill published in the GitHub repository autonomous-ai/autonomous-workshop (11 stars, last pushed yesterday), licensed Apache-2.0. It adds 23 tokens to every session and 484 once invoked, about $0.0001 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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