New: 98,000+ skills indexed from GitHub repos with 100+ stars · every skill safety-checkedBrowse top skillsTop skills
Esc to closeBrowse all skills
Submit a skillBrowse skills
Submit a skillBrowse skills

Agent skill

Forgecad Image Prompt

by ForgeCAD in ForgeCAD/forgecad-public-kit

Write builder-honest AI image prompts from a concrete ForgeCAD model, build brief, HLD, or LLD without hiding how the artifact is built.

MITAuto-check passedMedia & Creative

Install Forgecad Image Prompt

skills CLI
$ npx skills add ForgeCAD/forgecad-public-kit --skill forgecad-image-prompt -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install ForgeCAD/forgecad-public-kit forgecad-image-prompt --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/ForgeCAD/forgecad-public-kit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/forgecad-image-prompt .claude/skills/forgecad-image-prompt && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
forgecad-image-prompt
GitHub stars
941
Token cost
~981 tokens
SKILL.md length
428 words
Files
2
Skills in repo
10
Repo updated
First seen
Licence
MIT

At a glance

Write builder-honest AI image prompts from a concrete ForgeCAD model, build brief, HLD, or LLD without hiding how the artifact is built.

  • Tasks that involve Image generation
  • SKILL.md covers Scope, Core Rule, Prompt Skeleton and Modes, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Forgecad Image Prompt is an agent skill from ForgeCAD/forgecad-public-kit. Write builder-honest AI image prompts from a concrete ForgeCAD model, build brief, HLD, or LLD without hiding how the artifact is built.

Its SKILL.md is about 980 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `agents/openai.yaml`).

It sits in Media & Creative, covering Image generation. The repository describes itself as: Public companion kit for ForgeCAD: examples, agent skills, docs links, and issue tracking. The hosted CAD app and core source live elsewhere. The licence is MIT.

When your agent uses it

  • Tasks that involve Image generation

Example prompts

  • “/forgecad-image-prompt”

What it can do on your machine

Read from SKILL.md and the folder at commit 7523f68. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Forgecad Image Prompt loads about 981 tokens when it runs. Until then it costs about 40 tokens; SKILL.md has 428 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~40
When it runs · the whole SKILL.md, loaded when a task matches
~981

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from ForgeCAD/forgecad-public-kit at commit 7523f68, republished under its MIT licence (© ForgeCAD). 428 words, ~981 tokens.

Download SKILL.mdSave it as .claude/skills/forgecad-image-prompt/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
forgecad-image-prompt
description
Write builder-honest AI image prompts from a concrete ForgeCAD model, build brief, HLD, or LLD without hiding how the artifact is built.
forgecad-public
true

Image Prompt

Scope

Only for artifacts already concrete enough to visualize (a specific .forge.js model, build brief, or HLD); route vague briefs to forgecad-design-spec first. Read minimum context — entry .forge.js, one key helper if it delegates geometry, brief/HLD — and capture what must survive the image model: artifact type and scale, major subassemblies, actuation style, visible mechanisms, material and color cues.

Core Rule

Image prompts, not concept art: show the final artifact clearly, preserve build and subsystem truth, and keep visible the seams, modules, hardware, and mechanical hierarchy that matter.

Negatives (the only negatives list — reuse it, never restate variants):

  • no fake sleek consumer shell, no hidden mechanics
  • no over-smoothed geometry, no sci-fi styling
  • no CAD-drawing, blueprint, or dimension-arrow pretense
  • no cutaway, sectioned, or exploded teaching view unless the user explicitly asks
  • no text, labels, or humans

Prompt Skeleton

Block order: identity → mechanism truth → materials/color truth → pose/state → shot/camera/lighting → negatives. Fill in, don't copy:

text
A [artifact identity and scale], designed as a real buildable CAD-driven object, not a fantasy concept. [Major subassemblies and mechanism truth]. [Materials, colors, finish, visible hardware]. Show it in [pose / state]. [Shot, camera, background, lighting]. It should look physically buildable and mechanically honest, with visible part boundaries and serviceable architecture. No [negative 1], no [negative 2], no [negative 3].

Default shot: front-left three-quarter hero view, eye-level product camera. Alternate: rear-right three-quarter view showing motor placement and belt routing.

Modes

Default to ONE honest hero render; add support prompts only when the user asks. Prefer separate single-purpose images over collages or multi-view boards.

ModeJobSignature phrases
Honest hero render (default)Final object clearly, still reads as buildableclean premium studio product render, physically buildable and mechanically honest
Builder-first mechanicalTeach the build; bias to interfaces, seams, mounted actuatorsclear visibility of interfaces, seams, and subsystem boundaries, serious prototype, not a polished consumer shell
Mild explodedAssembly logic; major modules only, no per-screw chaos. Image-only — the CAD model stays the complete assembled productmajor modules separated by small clean gaps, no tiny floating fragments
Workshop prototype realismFeel like a real first prototypevisible print lines and honest surface texture, uncluttered engineering bench background
End-effector close-upWrist/gripper mechanism detailclose-up on the wrist and end effector showing the mechanism clearly
Show full SKILL.md (116 more words)Show less

Writing Rules

  • Use real artifact language: base, turntable, shoulder, rails, bearings, gripper, belt, pulley, shaft.
  • Prefer visible subsystem truth over poetic adjectives.
  • Keep exact dimensions out unless they matter visually and are already known.
  • If a detail is uncertain, stay honest at the subsystem level — never invent internals.
  • Ask for "physically buildable", "mechanically honest", "visible part boundaries" when central.
  • Mention motors, belts, pulleys, shafts, guide rods, fasteners, or service covers only if genuinely part of the artifact.
  • A short strong prompt beats a style dump.

Output Contract

Return: one sentence interpreting the artifact, the primary prompt first (usually the honest hero render), optional support prompts, and a short which-to-try-first note. Never bury the prompts under theory.

© ForgeCAD, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in skills/forgecad-image-prompt of ForgeCAD/forgecad-public-kit.

  • SKILL.md
  • agents/openai.yaml

Open the folder on GitHubat commit 7523f68

Compare with similar skills

Forgecad Image Prompt next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Forgecad Image Prompt compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Forgecad Image Prompt this skillForgeCAD/forgecad-public-kit941—~981Automated safety check: PassMIT
AI Image Generation and Editingzhayujie/CowAgent47k—~1.3kAutomated safety check: PassMIT
Structured Image Generationbytedance/deer-flow84k4 repos~2.9kAutomated safety check: PassMIT
Canghe Comicfreestylefly/canghe-skills4618 repos~3.2kAutomated safety check: PassNone
Generate Imageynulihao/AgentSkillOS61810 repos~1.7kAutomated safety check: NotesNone
GPT Image Generation CLIwuyoscar/GPT-Image2-Skill5.7k—~2.5kAutomated safety check: NotesMIT

Similar skills

  • AI Image Generation and Editing

    zhayujie/CowAgent

    Generates or edits images from text prompts through a Python script that picks an image backend based on which API keys are configured.

    47k GitHub stars~1.3k tokensUpdated today
    Media & CreativeAuto-check passed

  • Structured Image Generation

    bytedance/deer-flow

    Turns an image request into a structured JSON prompt and runs a bundled Python script to generate the picture, optionally guided by reference images.

    84k GitHub starsUsed in 4 repos~2.9k tokens
    Media & CreativeAuto-check passed

  • Canghe Comic

    freestylefly/canghe-skills

    Knowledge comic creator supporting multiple art styles and tones.

    461 GitHub starsUsed in 8 repos~3.2k tokens
    Media & CreativeAuto-check passed

  • Generate Image

    ynulihao/AgentSkillOS

    Generate or edit images using AI models (FLUX, Gemini). An agent skill from ynulihao/AgentSkillOS.

    618 GitHub starsUsed in 10 repos~1.7k tokens
    Media & CreativeAuto-check: notes

  • GPT Image Generation CLI

    wuyoscar/GPT-Image2-Skill

    Generates and edits images with GPT Image 2 or 2.5 through a packaged CLI and a prompt gallery, after settling which model fits the request.

    5.7k GitHub stars~2.5k tokensUpdated 10 days ago
    Media & CreativeAuto-check: notes

  • Minimal Zine Poster Generator

    LiamGvchi/gc-minimal-zine-poster

    Creates or analyzes quiet, paper-texture zine posters with big negative space, one color accent and experimental type, returning an image prompt and the generated poster.

    7.3k GitHub stars~2.9k tokensUpdated 1 mo ago
    Media & CreativeAuto-check passed

More from ForgeCAD/forgecad-public-kit

All 10 skills in this repo

  • Forgecad Reconstruct From Images

    ForgeCAD/forgecad-public-kit

    Reconstruct a real parametric ForgeCAD object from reference images by using images as evidence, not as a one-view facade.

    941 GitHub stars~1.3k tokensUpdated 3 mo ago
    Auto-check passed

  • Forgecad Verify Mujoco

    ForgeCAD/forgecad-public-kit

    Verify a ForgeCAD MJCF export in MuJoCo with dynamics, contacts, controls, joint travel, and rendered evidence before calling it simulation-ready.

    941 GitHub stars~1.6k tokensUpdated 3 mo ago
    Auto-check passed

  • Forgecad Design Spec

    ForgeCAD/forgecad-public-kit

    Create a ForgeCAD design brief, HLD, or LLD before coding by walking through use, assembly, interfaces, decisions, and verification.

    941 GitHub stars~2.5k tokensUpdated 3 mo ago
    Auto-check passed

  • Forgecad

    ForgeCAD/forgecad-public-kit

    ForgeCAD model authoring, editing, debugging, and execution guidance for .forge.js, SVG-import, assembly, and CLI workflows.

    941 GitHub stars~1.6k tokensUpdated 3 mo ago
    Auto-check passed

  • Forgecad Grade Model

    ForgeCAD/forgecad-public-kit

    Grade a ForgeCAD or CAD-as-code model against a requirement, brief, prompt, reference, or acceptance criteria with evidence and a 0-10 score.

    941 GitHub stars~1.3k tokensUpdated 3 mo ago
    Auto-check passed

  • Forgecad Inspect Model

    ForgeCAD/forgecad-public-kit

    Select, run, and interpret ForgeCAD inspection evidence for collisions, sections, wall thickness, components, masks, depth, normals, surface continuity, and fit.

    941 GitHub stars~1.3k tokensUpdated 3 mo ago
    Auto-check passed

Categories

Questions about Forgecad Image Prompt

What does Forgecad Image Prompt do?

Write builder-honest AI image prompts from a concrete ForgeCAD model, build brief, HLD, or LLD without hiding how the artifact is built. Forgecad Image Prompt is an agent skill from ForgeCAD/forgecad-public-kit. Write builder-honest AI image prompts from a concrete ForgeCAD model, build brief, HLD, or LLD without hiding how the artifact is built.

When should I use Forgecad Image Prompt?

Forgecad Image Prompt fits situations like: tasks that involve Image generation.

How do I install Forgecad Image Prompt in Claude Code?

Run `npx skills add ForgeCAD/forgecad-public-kit --skill forgecad-image-prompt -a claude-code`. Or copy the skill folder (skills/forgecad-image-prompt in ForgeCAD/forgecad-public-kit) into .claude/skills/forgecad-image-prompt in your project. Claude Code loads it when a task matches its description.

How do I install Forgecad Image Prompt in Codex?

Run `npx skills add ForgeCAD/forgecad-public-kit --skill forgecad-image-prompt -a codex`. Or copy the skill folder (skills/forgecad-image-prompt in ForgeCAD/forgecad-public-kit) into .agents/skills/forgecad-image-prompt in your project. Codex loads it when a task matches its description.

Can I use Forgecad Image Prompt in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ForgeCAD/forgecad-public-kit --skill forgecad-image-prompt -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/forgecad-image-prompt, .gemini/skills/forgecad-image-prompt, .github/skills/forgecad-image-prompt and .opencode/skills/forgecad-image-prompt in your project.

What does Forgecad Image Prompt need to run?

SKILL.md names no scripts, command-line tools or credentials: Forgecad Image Prompt is instructions for the agent only.

Does Forgecad Image Prompt access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Forgecad Image Prompt safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Forgecad Image Prompt use?

Forgecad Image Prompt is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Forgecad Image Prompt use?

About 981 tokens (SKILL.md is roughly 3.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Forgecad Image Prompt?

Skills that share tags, products or a category with Forgecad Image Prompt: AI Image Generation and Editing (zhayujie/CowAgent, 47k stars), Structured Image Generation (bytedance/deer-flow, 84k stars), Canghe Comic (freestylefly/canghe-skills, 461 stars) and Generate Image (ynulihao/AgentSkillOS, 618 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Forgecad Image Prompt?

ForgeCAD (a GitHub organization) maintains it in ForgeCAD/forgecad-public-kit, which has 941 GitHub stars. The repository holds 10 skills in this directory. The repository was last updated on June 15, 2026.

Source: ForgeCAD/forgecad-public-kit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.