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 calesthio/generative-media-skills --skill lottie-animation-deliverygit clone --depth 1 https://github.com/calesthio/generative-media-skillsWrote 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/calesthio/generative-media-skills/lottie-animation-delivery)<a href="https://agentmods.dev/skills/calesthio/generative-media-skills/lottie-animation-delivery"><img src="https://agentmods.dev/badge/skills/calesthio/generative-media-skills/lottie-animation-delivery/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/calesthio/generative-media-skills/lottie-animation-delivery"><img src="https://agentmods.dev/badge/skills/calesthio/generative-media-skills/lottie-animation-delivery.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00089 | $0.04418 |
| Opus 5 | $0.00044 | $0.02209 |
| Sonnet 5 | $0.00018 | $0.00884 |
| Haiku 4.5 | $0.00009 | $0.00442 |
Grade A, and why
lottie-animation-delivery 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 9d 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 — 373 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Lottie animation delivery
Use this skill when a designed vector animation must move reliably from an authoring tool into web, mobile, application, or rendered-video players. The production problem is interchange: preserving intended motion, typography, assets, timing, accessibility, and control across implementations with different feature support.
Lottie is not a universal After Effects renderer. Treat the target-player matrix as an input before animation is finalized, not as a test performed only after export.
Evidence and volatility
- Documented fact: behavior from the official Lottie specification, lottie-web, dotLottie specification, W3C, or browser documentation.
- Production heuristic: a practical default that must be tested against target players and the design.
- Empirical observation: a measured result from an exported file, player fixture, device, frame capture, or final delivery.
Facts were checked 2026-07-12. The official Lottie specification describes itself as a work in progress. Player feature support, exporter options, dotLottie versions, state machines, themes, and package APIs can change. Record exact exporter/player versions and re-check their current documentation.
Decide whether Lottie fits
Use Lottie when the deliverable benefits from:
- compact, scalable vector animation;
- authored keyframes, shapes, precompositions, images, text, masks, or mattes supported by the targets;
- runtime playback, seeking, markers, segments, or state changes;
- reuse across several supported players;
- responsive container scaling;
- deterministic frame capture into another video compositor.
Choose another format when:
- live action, video layers, photographic effects, or pixel processing dominate;
- audio is part of the animation asset contract;
- the required AE features do not survive the target players;
- exact offline rendering matters more than runtime control;
- 3D camera, lighting, particles, simulation, or shader behavior exceeds proven player support;
- a simple CSS/SVG transition is more maintainable.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 9d ago First seen · 373 lines · 89 tokens per session scan A c69ac9d8ffc3
lottie-animation-delivery is a skill published in the GitHub repository calesthio/generative-media-skills (170 stars, last pushed 2mo ago), licensed MIT. It adds 89 tokens to every session and 4,418 once invoked, about $0.0004 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 2026-09-03.
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