vfx-hit-spark SKILL.md skillA
vfx-hit-spark from summerengine/summer is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add summerengine/summer/vfx-hit-spark@git:20261016.e9d6e70Pins git:20261016.e9d6e70 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- summerengine/summer
- Path
library/skills/vfx-hit-spark/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261016.e9d6e70, committed Oct 16, 2026
- First version recorded
- Sep 11, 2026
- Size
- 17,341 bytes
- Repository stars
- 86
- License
- MIT
Hit-spark effect: a one-shot burst of additive particles oriented to the surface, fired on impact.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# hit-spark — One-Shot Impact Sparks Tiny stretched additive billboards spraying outward from an impact point, oriented to the surface normal so the burst points the right way. Used for: bullets hitting metal, sword clashes, footsteps on stone, ricochets, lightning endpoints, hammer strikes. The recipe is a `GPUParticles3D` configured for one-shot bursts plus a `spawn_hit_spark(position, normal)` static helper that orients the emitter, restarts it, and frees after lifetime. ## When to use - "Sparks when the bullet hits the wall." - "Sword clash sparks." - "Sparks under the hammer when the blacksmith works." - "Footstep sparks on stone for the heavy armor." - "Ricochet sparks when the projectile glances off." - "Mining: sparks fly when pickaxe hits rock." - Endpoint sparks on `vfx-lightning` and `vfx-muzzle-flash` recipes (they reference this). ## When NOT to use - The user wants a *flash* at the impact, not a spray of particles — use `vfx-muzzle-flash` (recolor it). - The user wants debris chunks (rock pieces, splinters) — those are physics objects, not particles. Spawn `RigidBody3D` shards, then sparks on top. …
Read the whole file at its exact version.
How to install
mdr add summerengine/summer/vfx-hit-spark@sha256:434cf6809dc04a26The line at the top of this page pins the label git:20261016.e9d6e70, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ni7nffd4bzxdaide)
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Versions
The registry has recorded 5 versions of this file, between Sep 11, 2026 and Oct 16, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261016.e9d6e70 latest | 2026-10-16 | e9d6e70 | 17,341 B | A | view · diff |
| git:20261016.75c9db4 | 2026-10-16 | 75c9db4 | 17,245 B | A | view · diff |
| git:20261015.ee152ef | 2026-10-15 | ee152ef | 16,021 B | A | view · diff |
| git:20261010.4ade947 | 2026-10-10 | 4ade947 | 16,039 B | A | view · diff |
| git:20260911.b4df358 | 2026-09-11 | b4df358 | 16,019 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (17341 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
summerengine/summer · 86 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ni7nffd4bzxdaide GET https://markdownregistry.com/api/v1/resolve?ref=summerengine/summer/vfx-hit-spark GET https://markdownregistry.com/api/v1/blob/434cf6809dc04a26ec8a1f634c152901cf9f0533ab343c35c8e99ddbfd7d5bf9
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.