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Agent skill

Release Update Docker Image Pin

by pytorch in pytorch/test-infra

Pin (or re-pin) the Linux manywheel builder docker images used by the nightly/release binary build workflows in pytorch/pytorch to a fixed .ci/docker build.

Custom licenceAuto-check passedDevOps & Cloud

Install Release Update Docker Image Pin

skills CLI
$ npx skills add pytorch/test-infra --skill release-update-docker-image-pin -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install pytorch/test-infra release-update-docker-image-pin --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/pytorch/test-infra.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/release-update-docker-image-pin .claude/skills/release-update-docker-image-pin && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
release-update-docker-image-pin
GitHub stars
113
Token cost
~2.1k tokens
SKILL.md length
725 words
Files
1
Skills in repo
11
Repo updated
First seen
Licence
Custom licence

At a glance

Pin (or re-pin) the Linux manywheel builder docker images used by the nightly/release binary build workflows in pytorch/pytorch to a fixed .ci/docker build.

  • Works in 7 steps: Resolve inputs → Compute the pin hash → (optional): Verify the image exists → …
  • Tasks that involve Containers
  • SKILL.md covers Inputs, When to use this skill, Background: how the pin maps… and Target, plus 3 more sections
  • Calls git and python3; reaches hub.docker.com

What it does

Release Update Docker Image Pin is an agent skill from pytorch/test-infra. Pin (or re-pin) the Linux manywheel builder docker images used by the nightly/release binary build workflows in pytorch/pytorch to a fixed .ci/docker build. Takes the release version (e.g. 2.13) as input. Updates DOCKERIMAGEPIN in .github/scripts/generatebinarybuildmatrix.py and regenerates the workflows. Triggered by mentions of "pin docker image", "update docker pin", "docker image pin", "pin builder images", or "bump the manywheel image pin" for a release branch.

Its SKILL.md is about 2.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in DevOps & Cloud, covering Containers and Deep learning. It works with Docker, PyTorch, Linux and GitHub. The repository describes itself as: This repository hosts code that supports the testing infrastructure for the PyTorch organization. For example, this repo hosts the logic to track disabled tests and slow tests…

When your agent uses it

  • Tasks that involve Containers
  • Tasks that involve Deep learning

Example prompts

  • “pin docker image”
  • “update docker pin”
  • “docker image pin”
  • “/release-update-docker-image-pin”

Requirements

  • Python 3
  • Docker

Workflow steps

7 steps, taken from the step headings in SKILL.md.

  1. Resolve inputs
  2. Compute the pin hash
  3. (optional): Verify the image exists
  4. Update or add DOCKER_IMAGE_PIN
  5. Regenerate the workflows
  6. Verify
  7. Lint and commit

What it can do on your machine

Read from SKILL.md and the folder at commit 5873748. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • git
    • python3

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • hub.docker.com

    Also links to:

    • hud.pytorch.org

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Release Update Docker Image Pin loads about 2.1k tokens when it runs. Until then it costs about 127 tokens; SKILL.md has 725 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~127
When it runs · the whole SKILL.md, loaded when a task matches
~2.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 725 words (~2,105 tokens).

“Pins the Linux manywheel builder docker images that the binary build workflows in pytorch/pytorch use, so a release branch builds against a fixed, reproducible toolchain instead of the floating tags that main tracks (e.g. pytorch/manylinux2_28-builder:cuda12.6). The pin lives in the…”

— opening of SKILL.md by pytorch, Custom licence
name
release-update-docker-image-pin

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/release-update-docker-image-pin of pytorch/test-infra.

Open the folder on GitHubat commit 5873748

Compare with similar skills

Release Update Docker Image Pin next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Release Update Docker Image Pin compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Release Update Docker Image Pin this skillpytorch/test-infra113—~2.1kAutomated safety check: PassCustom licence
Reproduce Issuenrwl/nx29k—~2.6kAutomated safety check: NotesMIT
Cicdthun-res/vlink116—~856Automated safety check: PassApache-2.0
Releasing MarchatCod-e-Codes/marchat137—~801Automated safety check: PassMIT
Npu Docker Launcherascend-ai-coding/awesome-ascend-skills174—~2.4kAutomated safety check: NotesNone
GitHub Runnermagnus919/agent-skills116—~1.7kAutomated safety check: PassMIT

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Works with

Categories

Questions about Release Update Docker Image Pin

What does Release Update Docker Image Pin do?

Pin (or re-pin) the Linux manywheel builder docker images used by the nightly/release binary build workflows in pytorch/pytorch to a fixed .ci/docker build. Release Update Docker Image Pin is an agent skill from pytorch/test-infra.ci/docker build.

When should I use Release Update Docker Image Pin?

Release Update Docker Image Pin fits situations like: tasks that involve Containers; tasks that involve Deep learning.

How do I install Release Update Docker Image Pin in Claude Code?

Run `npx skills add pytorch/test-infra --skill release-update-docker-image-pin -a claude-code`. Or copy the skill folder (.claude/skills/release-update-docker-image-pin in pytorch/test-infra) into .claude/skills/release-update-docker-image-pin in your project. Claude Code loads it when a task matches its description.

How do I install Release Update Docker Image Pin in Codex?

Run `npx skills add pytorch/test-infra --skill release-update-docker-image-pin -a codex`. Or copy the skill folder (.claude/skills/release-update-docker-image-pin in pytorch/test-infra) into .agents/skills/release-update-docker-image-pin in your project. Codex loads it when a task matches its description.

Can I use Release Update Docker Image Pin in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add pytorch/test-infra --skill release-update-docker-image-pin -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/release-update-docker-image-pin, .gemini/skills/release-update-docker-image-pin, .github/skills/release-update-docker-image-pin and .opencode/skills/release-update-docker-image-pin in your project.

What does Release Update Docker Image Pin need to run?

Going by SKILL.md and its folder, Release Update Docker Image Pin needs the command-line tools its instructions call (git and python3). Our summary lists: Python 3; Docker.

Does Release Update Docker Image Pin access the network?

SKILL.md names 2 domains. In commands or code: hub.docker.com; the agent is likely to contact it when it follows the instructions. As links in the text: hud.pytorch.org. This is read from the text; nothing was executed.

Is Release Update Docker Image Pin safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Release Update Docker Image Pin use?

Release Update Docker Image Pin has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Release Update Docker Image Pin use?

About 2.1k tokens (SKILL.md is roughly 8.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Release Update Docker Image Pin?

Skills that share tags, products or a category with Release Update Docker Image Pin: Reproduce Issue (nrwl/nx, 29k stars), Cicd (thun-res/vlink, 116 stars), Releasing Marchat (Cod-e-Codes/marchat, 137 stars) and Npu Docker Launcher (ascend-ai-coding/awesome-ascend-skills, 174 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Release Update Docker Image Pin?

pytorch (a GitHub organization) maintains it in pytorch/test-infra, which has 113 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on October 9, 2026.

Source: pytorch/test-infra on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.