using-summer SKILL.md skillA

using-summer 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/using-summer@git:20261016.e9d6e70

Pins 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/using-summer/SKILL.md
Versions recorded
5
Latest version
git:20261016.e9d6e70, committed Oct 16, 2026
First version recorded
Oct 15, 2026
Size
13,259 bytes
Repository stars
86
License
MIT

Session bootstrap: how to find and use Summer skills and the summer-engine MCP before any response.

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

<SUBAGENT-STOP>
If you were dispatched as a subagent to execute a specific task, skip this skill. The parent agent has already loaded it.
</SUBAGENT-STOP>

<EXTREMELY-IMPORTANT>
If you think there is even a 1% chance a Summer skill might apply to what you are doing, you ABSOLUTELY MUST invoke the skill.

IF A SKILL APPLIES TO YOUR TASK, YOU DO NOT HAVE A CHOICE. YOU MUST USE IT.

This is not negotiable. This is not optional. You cannot rationalize your way out of this.
</EXTREMELY-IMPORTANT>

## Instruction Priority

Summer skills override default model behavior, but **user instructions always win**:

1. **User's explicit instructions** (CLAUDE.md, GEMINI.md, AGENTS.md, direct requests) — highest priority.
2. **Summer skills** — override default agent behavior where they conflict.
3. **Default system prompt** — lowest priority.

If `CLAUDE.md` says "skip the brainstorm, just build it" and a skill says "always brainstorm first" — follow the user. The user is in control.

## What Summer Is
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add summerengine/summer/using-summer@sha256:c8ab6d834d7362f4

The 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_tsi4lbqap6ajvmlp.svg)](https://markdownregistry.com/a/art_tsi4lbqap6ajvmlp)

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

Versions

The registry has recorded 5 versions of this file, between Oct 15, 2026 and Oct 16, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20261016.e9d6e70 latest2026-10-16 e9d6e70 13,259 BA view · diff
git:20261016.75c9db42026-10-16 75c9db4 13,163 BA view · diff
git:20261015.3be1d9d2026-10-15 3be1d9d 11,641 BA view · diff
git:20261015.9e19de92026-10-15 9e19de9 11,634 BA view · diff
git:20261015.a612b4f2026-10-15 a612b4f 11,046 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 (13259 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_tsi4lbqap6ajvmlp
GET https://markdownregistry.com/api/v1/resolve?ref=summerengine/summer/using-summer
GET https://markdownregistry.com/api/v1/blob/c8ab6d834d7362f4b6bbae044f3b07073a05ef1f016d1d004ebe1f1f3618f939

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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