compatibility-renderer-traps SKILL.md skillA

compatibility-renderer-traps from summerengine/summer is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add summerengine/summer/compatibility-renderer-traps@git:20261010.4ade947

Pins git:20261010.4ade947 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/compatibility-renderer-traps/SKILL.md
Versions recorded
2
Latest version
git:20261010.4ade947, committed Oct 10, 2026
First version recorded
Oct 9, 2026
Size
4,833 bytes
Repository stars
86
License
MIT

Make a Forward+ Summer game also look right on the Compatibility renderer: instance-uniform budget, black MultiMesh colors, sRGB vertex colors.

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

# Forward+ and Compatibility without surprises

Games built on Forward+ can end up on the Compatibility renderer (OpenGL): phones where Metal/Vulkan is
unavailable, weak GPUs, or a project that picks it for battery. The failures are silent: no error, just
black fruit, pale colors, or objects that stop animating after the first few hundred. Each trap below
comes with its fix and the reason.

## 1. Know which renderer you actually got

- Phones use `rendering/renderer/rendering_method.mobile`, which defaults to `mobile`, not Forward+.
  Set it explicitly.
- A device can fall back to another renderer when it lacks a capability. Trust the renderer name printed
  at startup (or `RenderingServer.get_current_rendering_method()`), not the project setting.
- Preview Compatibility on your computer:
  `<summer> --path . --rendering-method gl_compatibility`.

## 2. The traps

| Symptom on Compatibility | Cause | Fix |
|---|---|---|
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add summerengine/summer/compatibility-renderer-traps@sha256:63bf03c7d339c218

The line at the top of this page pins the label git:20261010.4ade947, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_4nwxdpp5x3pebpwq.svg)](https://markdownregistry.com/a/art_4nwxdpp5x3pebpwq)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Oct 9, 2026 and Oct 10, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20261010.4ade947 latest2026-10-10 4ade947 4,833 BA view · diff
git:20261009.78437402026-10-09 7843740 4,886 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (4833 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

GitHub

summerengine/summer · 86 stars · license MIT · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_4nwxdpp5x3pebpwq
GET https://markdownregistry.com/api/v1/resolve?ref=summerengine/summer/compatibility-renderer-traps
GET https://markdownregistry.com/api/v1/blob/63bf03c7d339c2182bd627c7f23e2332a4f576c9245349d2f41d955f7ad75828

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.

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