Borrowing it
Nothing to install: this file belongs to vchelaru/FlatRedBall2. 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/vchelaru/FlatRedBall2/main/.claude/skills/animation-editor-tiled/SKILL.mdgit clone --depth 1 https://github.com/vchelaru/FlatRedBall2Wrote 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/vchelaru/flatredball2/animation-editor-tiled)<a href="https://agentmods.dev/skills/vchelaru/flatredball2/animation-editor-tiled"><img src="https://agentmods.dev/badge/skills/vchelaru/flatredball2/animation-editor-tiled/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/vchelaru/flatredball2/animation-editor-tiled"><img src="https://agentmods.dev/badge/skills/vchelaru/flatredball2/animation-editor-tiled.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 | $0.00052 | $0.00448 |
| Opus 5.5 | $0.00021 | $0.00179 |
| Sonnet 5.5 | $0.00010 | $0.00090 |
| Haiku 4.5 | $0.00005 | $0.00045 |
Grade A, and why
animation-editor-tiled 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 16d 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.
What it actually says
AnimationEditor — Tiled Tilesets
The editor opens a Tiled .tsx as a native project (ProjectManager.LoadTsxProject,
IsNativeTsxProject). Tile animations load as chains (TiledAnimationToAchjMapper) and save back
into the .tsx (NativeTsxAnimationSync, TsxWriter). Code lives in AnimationEditor.Core/Tiled/.
General editor layout is in the animation-editor skill.
The older achx→tsx push sync (.tiledsync files, TilesetAnimationSync) is not recommended.
Don't build on it or document it.
Landmines
- A tile animation stores only rects and durations. Flips, offsets, color, collision shapes and Loop=off are dropped on save.
TsxLossyDataCheckreports what was dropped. Don't rely on the inspector hiding those controls, because other entry points (paste, context menu) can still create them. - Multi-tile animations need one shared footprint. A chain wider than one tile is saved as an anchor tile plus satellite tiles, each tagged with a
ParentIdproperty. If any frame's size differs from the others, the whole chain's animation is silently dropped.FrameFootprintSynckeeps frames in lockstep when one is resized. TsxWriteronly supports part of the format. Tilesets that use wangsets, transformations, per-tile object layers or custom class/enum properties throw instead of losing data.TsxCompatibilityCheckerchecks this before open. The writer patches the file in place, so unchanged tiles keep their original bytes.- Invalid groups are kept, not dropped. A dangling, chained or backward
ParentIdbecomes its own anchor, andTsxAnimationValidatorflags it. That flag is the warning icon in the tree.
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.
- 16d ago Changed · +52 tokens per session 9f595fb18a22
- 26d ago Changed 71d9123473b9
- 28d ago First seen · 22 lines · 0 tokens per session scan A dfe1b998cbd6
animation-editor-tiled is a skill published in the GitHub repository vchelaru/FlatRedBall2 (15 stars, last pushed today), licensed MIT. It adds 52 tokens to every session and 448 once invoked, about $0.0002 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 2026-09-28.
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