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.
npx skills add jeffreytse/grimoire-core --skill design-character-design-sheetgit clone --depth 1 https://github.com/jeffreytse/grimoire-coreWrote 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/skills/jeffreytse/grimoire-core/design-character-design-sheet)<a href="https://agentmods.dev/skills/jeffreytse/grimoire-core/design-character-design-sheet"><img src="https://agentmods.dev/badge/skills/jeffreytse/grimoire-core/design-character-design-sheet/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/skills/jeffreytse/grimoire-core/design-character-design-sheet"><img src="https://agentmods.dev/badge/skills/jeffreytse/grimoire-core/design-character-design-sheet.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 | $0.00051 | $0.01322 |
| Opus 5 | $0.00026 | $0.00661 |
| Sonnet 5 | $0.00010 | $0.00264 |
| Haiku 4.5 | $0.00005 | $0.00132 |
Grade A, and why
design-character-design-sheet 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 12d 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 — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Design Character Design Sheet
Create a production-ready character design sheet with orthographic turnarounds, proportion guides, expression sheets, and callout details to enable consistent character reproduction across a production team.
Why This Is Best Practice
Why best: A single reference sheet with orthographic turnarounds, proportion guides, and expression grids lets any artist on the team reproduce the character identically, eliminating the drift that occurs when each artist works from their own mental model of the character. Adopted by: Disney Feature Animation, Pixar, DreamWorks, and every professional animation studio require production character design sheets (also called model sheets or character bibles) before animation begins. The Disney Nine Old Men (Thomas & Johnston, "The Illusion of Life") institutionalized model sheets in the 1930s as the solution to inconsistent character appearance across different animators. Game studios (Riot Games, Blizzard, Ubisoft) require turnaround sheets before any 3D modeling or rigging begins. Impact: Without a standardized design sheet, each artist draws the character from their own mental model — producing inconsistency across frames, scenes, or game assets. A complete character sheet is the contract between the character designer and the production team. The more detail in the sheet, the less correction is needed in production.
Steps
1. Establish character silhouette and proportions
The silhouette is the most important design element:
- Read test: does the character read clearly as a solid black silhouette? Distinctive silhouettes are memorable and communicate character type (broad shoulders = strong; small head = timid)
- Head measurement system: measure character height in head units (e.g., "6 heads tall"); mark head unit height on the sheet
Draw the base front-view standing pose first:
- Neutral, relaxed stance (A-pose or T-pose for 3D production; natural relaxed pose for 2D)
- No expression — this is the proportion reference, not a performance pose
- Include height comparison markers
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.
- 12d ago First seen · 85 lines · 51 tokens per session scan A 297bdf11ebeb
design-character-design-sheet is a skill published in the GitHub repository jeffreytse/grimoire-core (4 stars, last pushed 23d ago), licensed MIT. It adds 51 tokens to every session and 1,322 once invoked, about $0.0003 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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