bounded-engine-runs SKILL.md skillA
bounded-engine-runs 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/bounded-engine-runs@git:20261010.4ade947Pins 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/bounded-engine-runs/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261010.4ade947, committed Oct 10, 2026
- First version recorded
- Oct 9, 2026
- Size
- 5,334 bytes
- Repository stars
- 86
- License
- MIT
Run Summer headless or offscreen safely from an agent: time limits, one engine per project, muted runs, import passes, tests that fail on crashes.
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
# Bounded engine runs for agents
Agents verify games by running the engine many times: imports, tests, captures, multiplayer bots. A run
that hangs, overlaps another, makes noise or hides an error costs time. These rules keep runs safe when
several agents share one project on one machine.
## 1. Every run is bounded, muted and alone
- **Bound it.** macOS has no `timeout`. Wrap runs so the engine itself gets killed:
```sh
perl -e 'alarm shift; exec @ARGV' 180 <summer> --headless --path . -s res://tests/run_tests.gd
```
`alarm` survives `exec`; exit code 142 means the limit hit.
- **One engine per project at a time.** Two engines writing the same `.godot/` import cache corrupt it or
freeze each other's captures. Serialize with a lock file held by the engine process:
```sh
perl -e 'use Fcntl qw(:flock); $^F=255; open(my $l,">>",shift) or die; flock($l,LOCK_EX); alarm shift; exec @ARGV' \
<project>/.engine.lock 180 <summer> ...
```
Put this in one wrapper script and make every agent use it.
- **Cap its memory.** A time limit does not stop a run from eating all memory first; several engine runs plus a
…Read the whole file at its exact version.
How to install
mdr add summerengine/summer/bounded-engine-runs@sha256:bad52640c3c02d6eThe 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.
[](https://markdownregistry.com/a/art_4xej3sjypkg5uejw)
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.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261010.4ade947 latest | 2026-10-10 | 4ade947 | 5,334 B | A | view · diff |
| git:20261009.7843740 | 2026-10-09 | 7843740 | 5,437 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 (5334 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_4xej3sjypkg5uejw GET https://markdownregistry.com/api/v1/resolve?ref=summerengine/summer/bounded-engine-runs GET https://markdownregistry.com/api/v1/blob/bad52640c3c02d6eb411a9d77e6508227f79592f82e4dea0c996f31d2763bf89
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.