Borrowing it
Nothing to install: this file belongs to BloomBooks/BloomDesktop. 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/BloomBooks/BloomDesktop/master/.github/skills/custom-branding-text/SKILL.mdgit clone --depth 1 https://github.com/BloomBooks/BloomDesktopWrote 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/bloombooks/bloomdesktop/custom-branding-text)<a href="https://agentmods.dev/skills/bloombooks/bloomdesktop/custom-branding-text"><img src="https://agentmods.dev/badge/skills/bloombooks/bloomdesktop/custom-branding-text/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/bloombooks/bloomdesktop/custom-branding-text"><img src="https://agentmods.dev/badge/skills/bloombooks/bloomdesktop/custom-branding-text.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 | $0.00116 | $0.03106 |
| Opus 5 | $0.00058 | $0.01553 |
| Sonnet 5 | $0.00023 | $0.00621 |
| Haiku 4.5 | $0.00012 | $0.00311 |
Grade A, and why
custom-branding-text 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.
This is a copy
98% identical to branding-page-sizes — 4 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 185 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Custom Branding: page layouts, sizes, verification & PDF
Outcome
Take a branding pack whose front/back matter is dense (the MXB packs push a lot onto the title and credits pages), give its books a full set of page sizes, make every size look polished, and prove it with a PDF of actual Bloom screenshots — not fabricated renders.
The bar: no overflow AND no "smell of overflow"
"Polished" means a page must neither overflow nor give the smell of overflow. Concretely, the deliverable must show no red overflow indicator — Bloom renders an editable's text/ border in red (a red box) when its content is taller than its allotted box, even when the page edge isn't visibly breached. That red is a real signal (the content would clip/overlap in print), so it must be fixed, not hidden. Two distinct failures to hunt for, per page:
- Page overflow — an element's bottom extends past the
.bloom-pagebottom (e.g. a cut-off logo). Detect:el.getBoundingClientRect().bottom > pageR.bottom. - In-box overflow (the red "smell") — an editable overflows its own box. Detect:
el.scrollHeight - el.clientHeight > 2on.bloom-editable.bloom-visibility-code-on, or look for Bloom's overflow class. A box can be well within the page yet still be red because a fixed/min-heightor flex-allotted height is shorter than its content.
This skill is the page-size/verification companion to two others — read them too:
bloom-branding— what branding.json/branding.less do, the badge/QR mechanism, how files reach a book (build + reopen), and theSTARTLAYOUTSpage-size source.bloom-automation— launching this worktree's Bloom, finding the CDP target, the 127.0.0.1-vs-localhost / Host-header gotcha, and driving the UI over CDP.
1. Unlock the page sizes
Sizes come from the first stylesheet with a STARTLAYOUTS … ENDLAYOUTS JSON comment
(parsed by SizeAndOrientation.cs). For MXB that block lives in the xmatter .less
(MXBLiteracy-XMatter.less / MXBScripture-XMatter.less). LESS keeps /* */ comments, so
add each layout (e.g. LetterPortrait, HalfLetterLandscape, QuarterLetterLandscape,
Device16x9Portrait, …) to that block. Despite a code comment claiming a branding xmatter
only sets a default, in practice this block restricts the dropdown.
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.
- 10d ago First seen · 185 lines · 116 tokens per session scan A b070e0402a81
custom-branding-text is a skill published in the GitHub repository BloomBooks/BloomDesktop (44 stars, last pushed today), licensed MIT. It adds 116 tokens to every session and 3,106 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 98% identical to branding-page-sizes, differing in 4 lines, and is treated as a copy.
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