sling SKILL.md skillA

sling from starslingdev/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add starslingdev/skills/sling@git:20261105.3675fc6

Pins git:20261105.3675fc6 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
starslingdev/skills
Path
skills/sling/SKILL.md
Versions recorded
4
Latest version
git:20261105.3675fc6, committed Nov 5, 2026
First version recorded
Aug 27, 2026
Size
33,822 bytes
Repository stars
80
License
MIT

Diagnoses GitHub Actions failures and attributes CI time and cost using StarSling's `sling` CLI. Invoke this BEFORE using `gh` or fetching any logs whenever the user asks why a job or run failed, what made a run slow, about runner minutes or CI cost, asks to re-run or cancel a run, or pastes a GitHub Actions URL — `sling` returns server-classified failure causes and cost attribution that log-grepping misses; state changes route to `gh`. Not for repo-wide audits of workflow files…

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

# sling CLI

`sling` is StarSling's agent-first CLI for GitHub Actions. It answers
questions about **live CI data** — one run, one job, one attempt, or an
account's runner-minutes — from StarSling's control plane, with structured
JSON on stdout and a stable exit-code table. **No `sling` command changes
GitHub or CI state**: it reads and analyzes. A few change only the user's
own machine — `login`/`logout` (the credential), `org switch` (the saved
default org) and `update` (the installed binary); the user runs `login`,
`logout` and `update`, never you; `org switch <slug>` is yours to run.

**This skill's job is picking the right tool per request.** Live question
about a run, a job, or spend → `sling`. Anything that *changes* CI state →
`gh`. A repo-wide audit of workflow *files* → hand off to the audit skill
that owns it and stop. Do not invent a `sling` subcommand for something
`sling` does not do; [the command
surface](references/command-surface.json) is the complete list.

Every fact in [the command reference](references/command-reference.md) was
read off `sling` v0.1.124 itself, not its documentation.

## Preflight: is `sling` installed and authenticated?
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add starslingdev/skills/sling@sha256:ac9c9d857c162534

The line at the top of this page pins the label git:20261105.3675fc6, 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_jg7d5plvyye3q72f.svg)](https://markdownregistry.com/a/art_jg7d5plvyye3q72f)

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

Versions

The registry has recorded 4 versions of this file, between Aug 27, 2026 and Nov 5, 2026, about one every 23 days.

versioncommittedcommitsizeaudit
git:20261105.3675fc6 latest2026-11-05 3675fc6 33,822 BA view · diff
git:20261028.cbced472026-10-28 cbced47 33,010 BA view · diff
git:20260831.9bc47812026-08-31 9bc4781 30,167 BA view · diff
git:20260827.792e1df2026-08-27 792e1df 29,314 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 (33822 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

starslingdev/skills · 80 stars · license MIT · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_jg7d5plvyye3q72f
GET https://markdownregistry.com/api/v1/resolve?ref=starslingdev/skills/sling
GET https://markdownregistry.com/api/v1/blob/ac9c9d857c1625346144fc23ecf29e33323f224444a6efa32c989c2bc44d7bc2

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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Every file in starslingdev/skills

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