platform-jump SKILL.md skillA
platform-jump from jammyfu/open-game-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jammyfu/open-game-skills/platform-jump@git:20260913.624182fPins git:20260913.624182f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jammyfu/open-game-skills
- Path
skills/disciplines/platform-jump/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260913.624182f, committed Sep 13, 2026
- First version recorded
- Sep 12, 2026
- Size
- 1,980 bytes
- Repository stars
- 12
- License
- MIT
Use when a platformer's jump arc, rise/fall gravity, takeoff speed, air control, jump cut, or reachable-gap metrics need outcome-based tuning.
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
# Platform jump This skill owns the **jump arc and reachability metrics**. `jump-leniency` owns coyote time, input buffering and corner forgiveness; `locomotion` owns movement integration and grounding. Choose the movement/jump feel: | Column | Ground feel | Air policy | |---|---|---| | snap-run | fast acceleration | authored air control | | weight-run | longer accel/brake | authored air control | | inertia-air | preserves more horizontal momentum | optional air verbs | | gravity-flip | local up vector | same ownership rules in local frame | Tune by outcomes such as body-height jump, time-to-apex and horizontal reach rather than copying raw constants from another game. For a simple constant-gravity arc using positive magnitudes: ```text gravity_up = 2 * height / apex_time^2 launch_speed = 2 * height / apex_time ``` A separate fall multiplier or curve may be authored. These equations are a starting model, not a requirement for every jump system. ## Rules - Variable-height jump cut belongs to the arc policy; its input edge comes through `input-design`/movement state. - Coyote/buffer configuration is referenced from `jump-leniency`, not duplicated here. …
Read the whole file at its exact version.
How to install
mdr add jammyfu/open-game-skills/platform-jump@sha256:4827776e37708006The line at the top of this page pins the label git:20260913.624182f, 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_ugkvvigknhq7oxfa)
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Versions
The registry has recorded 2 versions of this file, between Sep 12, 2026 and Sep 13, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260913.624182f latest | 2026-09-13 | 624182f | 1,980 B | A | view · diff |
| git:20260912.a76815a | 2026-09-12 | a76815a | 1,833 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 (1980 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
jammyfu/open-game-skills · 12 stars · license MIT · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ugkvvigknhq7oxfa GET https://markdownregistry.com/api/v1/resolve?ref=jammyfu/open-game-skills/platform-jump GET https://markdownregistry.com/api/v1/blob/4827776e37708006d94597403b602f05b4d42c8c2c35d7c70a2db554a566b920
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.