Loom is a delivery harness that guides coding agents through defining, planning, implementing, checking, repairing, previewing, and handing off software changes. It is used with Claude Code, Codex, OpenCode, and other coding agents when work must be continued or inspected across sessions. The catalogue skills, hooks, commands, instructions, and plugin extend or operate this workflow.
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 valkor-ai/loom --skill animationgit clone --depth 1 https://github.com/valkor-ai/loomWrote 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/valkor-ai/loom/animation)<a href="https://agentmods.dev/skills/valkor-ai/loom/animation"><img src="https://agentmods.dev/badge/skills/valkor-ai/loom/animation/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/valkor-ai/loom/animation"><img src="https://agentmods.dev/badge/skills/valkor-ai/loom/animation.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 | $0.00075 | $0.00343 |
| Opus 5.5 | $0.00030 | $0.00137 |
| Sonnet 5.5 | $0.00015 | $0.00069 |
| Haiku 4.5 | $0.00007 | $0.00034 |
Grade A, and why
animation-review 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.
What it actually says
Animation Review
Post-implementation reviewer for Godot animation code. Checks against known gotchas that LLMs consistently get wrong.
When to trigger
After animation-related code is written or modified. Look for:
- Animation nodes (AnimationPlayer, AnimationTree, AnimatedSprite2D)
- AnimationTree state machine control (
travel(),start(),active) - SpriteFrames or Animation resource manipulation at runtime
callback_mode_processsettings- Pool/spawn lifecycle involving animated entities
- Briefs or asset snapshots that require multi-frame
grid_sheetruntime assets, dynamic-mode evidence, frame sequences, animated actors, or animated FX. Trigger even if the implementation contains no animation API; omitted expected animation is a finding.
Review process
- Read
gotchas.md - Scan the implemented code against each gotcha
- For each hit:
- Cite the gotcha ID (e.g. G1)
- Show the offending code
- Provide the fix
- If no hits, report clean
- Optionally run
checklist.mdstatic checks for automated verification
When you need specific API details, delegate to the godot-api skill.
What ships with it
2 files 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.
- 1mo ago First seen · 40 lines · 75 tokens per session scan A c1a9f16ec8bc
animation-review is a skill published in the GitHub repository valkor-ai/loom (1,293 stars, last pushed 4d ago), licensed Apache-2.0. It adds 75 tokens to every session and 343 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.
Other skills, from other repositories
godot-code-review
Use when reviewing GDScript or C# Godot code — checklist of best practices, common anti-patterns, and Godot-specific pitfalls. Triggers on "review this script", "check my code", "any issues with this", "what's wrong with this code", including a short pasted snippet.
hz-unity-code-review
Reviews Unity code targeting Meta VR and Horizon OS for performance issues, rendering best practices, and common VR pitfalls. Use during code review or when diagnosing Meta VR performance problems in Unity projects.
code-review
Performs an architectural and quality code review on a specified file or set of files. Checks for coding standard compliance, architectural pattern adherence, SOLID principles, testability, and performance concerns.
design-lenses
Critique a game's design through Schell's lenses, MDA and systems thinking, ranking findings by severity with fixes. Design-level review, not bugs or feel tuning.
validate-urp-render-graph-renderer-feature
Reviews a Unity 6 URP ScriptableRendererFeature that uses the Render Graph API, checking resource wiring, material binding, execution structure, and best practices. Use to validate a renderer feature.
unity-csharp-standards
Apply Unity-specific C# standards that preserve readability, testability, and safe engine integration.