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 cenconq25/claude-code-app-studio --skill asset-specgit clone --depth 1 https://github.com/cenconq25/claude-code-app-studioWrote 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/cenconq25/claude-code-app-studio/asset-spec)<a href="https://agentmods.dev/skills/cenconq25/claude-code-app-studio/asset-spec"><img src="https://agentmods.dev/badge/skills/cenconq25/claude-code-app-studio/asset-spec/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/cenconq25/claude-code-app-studio/asset-spec"><img src="https://agentmods.dev/badge/skills/cenconq25/claude-code-app-studio/asset-spec.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 | $0.00067 | $0.02300 |
| Opus 5.5 | $0.00027 | $0.00920 |
| Sonnet 5.5 | $0.00013 | $0.00460 |
| Haiku 4.5 | $0.00007 | $0.00230 |
Grade A, and why
asset-spec 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 1mo 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 — 279 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Asset Spec
Bridges design and asset production. For each asset (icon, illustration, animation, app icon, splash, hero image), this skill produces a spec the asset producer (designer or AI tool) can act on, plus an AI-gen prompt seeded from the design bible.
Outputs:
design/assets/<asset-name>.md— per-asset specdesign/assets/manifest.md— running list of assets
Purpose / When to Run
Run when:
- The design bible has been approved
- A UX spec or PRD calls for specific assets (illustrations, icons, hero images, animations)
- The team needs production-ready specs for a designer or for AI generation
Inputs
- Asset name OR system/screen scope
design/design-bible.md(required for tokens and style anchors)- Source PRD or UX spec
- Existing manifest if any
Outputs
design/assets/<asset-name>.mdper assetdesign/assets/manifest.mdupdated with new entries
Phase 1: Resolve Scope
Argument forms:
<asset-name>— single asset (e.g.,empty-state-projects)system:<system>— all assets called out in a system PRDscreen:<screen>— all assets in a UX specapp-icon— app icon spec (special case, full size matrix)splash— splash / launch screen spec
If no argument: ask via AskUserQuestion.
Phase 2: Gather Sources
Read:
- The design bible (full — the asset spec must reference its tokens and style anchor)
- The relevant PRD or UX spec (full)
- Existing
design/assets/manifest.mdif it exists
If design bible is missing, stop:
"No
design/design-bible.mdfound. Asset specs without a bible drift from brand. Run/design-biblefirst."
Phase 3: Inventory Assets
For system: / screen: modes, scan the source doc and identify every visual asset called out:
- Illustrations (empty states, onboarding visuals, hero images)
- Icons not from the system family (custom glyphs)
- Animations (Lottie / Rive / video)
- Photographs (if used)
- Decorative elements (patterns, textures)
For each, record: implied use, location in source doc.
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.
- 1mo ago First seen · 279 lines · 67 tokens per session scan A 9b2a5f4ca125
asset-spec is a skill published in the GitHub repository cenconq25/claude-code-app-studio (42 stars, last pushed 5mo ago), licensed MIT. It adds 67 tokens to every session and 2,300 once invoked, about $0.0003 per session on Opus 5.5. 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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