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Agent skill

Jk

by majiayu000 in majiayu000/claude-skill-registry

Manage Jenkins controllers with jk, including jobs, runs, logs, artifacts, credentials, nodes, queues, and plugins.

MITAuto-check passedDevOps & Cloud

Install Jk

skills CLI
$ npx skills add majiayu000/claude-skill-registry --skill jk -a claude-code

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

GitHub CLI
$ gh skill install majiayu000/claude-skill-registry jk --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/majiayu000/claude-skill-registry.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/bash/1278-jk .claude/skills/jk && 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
jk
GitHub stars
666
Used in
1 other repo
Token cost
~782 tokens
SKILL.md length
277 words
Files
2
Skills in repo
1,273
Repo updated
First seen
Licence
MIT

At a glance

Manage Jenkins controllers with jk, including jobs, runs, logs, artifacts, credentials, nodes, queues, and plugins.

  • DevOps & Cloud work in your project
  • SKILL.md covers Route the task, Shared operating rules, Common reads and References
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Jk is an agent skill from majiayu000/claude-skill-registry. Manage Jenkins controllers with jk, including jobs, runs, logs, artifacts, credentials, nodes, queues, and plugins.

Its SKILL.md is about 780 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `metadata.json`).

It sits in DevOps & Cloud. It works with Jenkins and Bash. The repository describes itself as: Searchable Claude Code skills catalog with source-linked guides and generated registry artifacts. The licence is MIT.

When your agent uses it

  • DevOps & Cloud work in your project

Example prompts

  • “/jk”

What it can do on your machine

Read from SKILL.md and the folder at commit 2d14a69. 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

    No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).

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

  • Network

    No URLs in SKILL.md.

    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

Jk loads about 782 tokens when it runs. Until then it costs about 30 tokens; SKILL.md has 277 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~30
When it runs · the whole SKILL.md, loaded when a task matches
~782

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

The full file from majiayu000/claude-skill-registry at commit 2d14a69, republished under its MIT licence (© majiayu000). 277 words, ~782 tokens.

Download SKILL.mdSave it as .claude/skills/jk/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
jk
description
Manage Jenkins controllers with jk, including jobs, runs, logs, artifacts, credentials, nodes, queues, and plugins.
version
0.0.37
metadata.short-description
Jenkins CLI for jobs, config, pipelines, and runs
metadata.compatibility
claude-code, codex-cli

Jenkins CLI

Use jk for Jenkins reads and changes. Inspect jk --help or a subcommand's help when syntax is uncertain. Check installation or version only when the command is unavailable or a requested feature has a known minimum version.

Route the task

Read only the rule that matches the request:

For exact flags and output modes, search references/commands.md for the subcommand.

Shared operating rules

  • Use the active context unless the user names another controller. Verify the target context before a state-changing or security-sensitive operation.
  • Prefer structured output (--json or --yaml) when another tool or script will consume the result.
  • Inspect a job's declared parameters before starting a parameterized run; do not guess names or values.
  • Treat job configuration, credentials, nodes, plugins, queue cancellation, and run deletion as state-changing operations. Show the resolved target and follow the user's authorization.
  • Never print, store, or echo Jenkins tokens or credential secrets. Browser SSO access tokens are not Jenkins API tokens; follow rules/auth.md.
  • Do not weaken TLS verification unless the user explicitly chooses that risk.

Common reads

bash
jk job ls
jk job view team/app
jk run ls team/app
jk run view team/app 128
jk log team/app 128 --follow
jk artifact ls team/app 128
jk test report team/app 128
jk queue ls

Use the relevant rule file before composing a write command.

References

<!-- auto-generated by cmd/docgen — do not edit below this line -->
  • artifact — Work with run artifacts
  • auth — Authenticate with Jenkins instances
  • context — Manage Jenkins contexts
  • cred — Manage Jenkins credentials
  • job — Manage Jenkins jobs and pipelines
  • node — Inspect and manage Jenkins nodes
  • plugin — Inspect and manage Jenkins plugins
  • queue — Inspect the build queue
  • run — Interact with job runs
  • test — Inspect test results
  • other — log, search, version
<!-- end auto-generated -->

© majiayu000, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in skills/bash/1278-jk of majiayu000/claude-skill-registry.

  • SKILL.md
  • metadata.json

Open the folder on GitHubat commit 2d14a69

Used in 1 other repository

We found 3 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in majiayu000/claude-skill-registry, which our catalogue first saw on October 8, 2026.

Compare with similar skills

Jk 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.

Jk compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Jk this skillmajiayu000/claude-skill-registry6661 repos~782Automated safety check: PassMIT
Jenkinsfile Validatorakin-ozer/cc-devops-skills319—~2.7kAutomated safety check: PassApache-2.0
Postman Newman Automationsickn33/agentic-awesome-skills47k1 repos~2.1kAutomated safety check: PassMIT
Bash Defensive Patternspromovaweb/setupvibe10115 repos~572Automated safety check: PassGPL-3.0
Maintainer Triageredis/node-redis18k—~1.9kAutomated safety check: PassMIT
Aspiremicrosoft/aspire.dev1964 repos~1.1kAutomated safety check: PassMIT

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Works with

Categories

Questions about Jk

What does Jk do?

Manage Jenkins controllers with jk, including jobs, runs, logs, artifacts, credentials, nodes, queues, and plugins. Jk is an agent skill from majiayu000/claude-skill-registry. Manage Jenkins controllers with jk, including jobs, runs, logs, artifacts, credentials, nodes, queues, and plugins.

When should I use Jk?

Jk fits situations like: devOps & Cloud work in your project.

How do I install Jk in Claude Code?

Run `npx skills add majiayu000/claude-skill-registry --skill jk -a claude-code`. Or copy the skill folder (skills/bash/1278-jk in majiayu000/claude-skill-registry) into .claude/skills/jk in your project. Claude Code loads it when a task matches its description.

How do I install Jk in Codex?

Run `npx skills add majiayu000/claude-skill-registry --skill jk -a codex`. Or copy the skill folder (skills/bash/1278-jk in majiayu000/claude-skill-registry) into .agents/skills/jk in your project. Codex loads it when a task matches its description.

Can I use Jk 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 majiayu000/claude-skill-registry --skill jk -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/jk, .gemini/skills/jk, .github/skills/jk and .opencode/skills/jk in your project.

What does Jk need to run?

SKILL.md names no scripts, command-line tools or credentials: Jk is instructions for the agent only.

Does Jk access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Jk 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 Jk use?

Jk is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Jk use?

About 782 tokens (SKILL.md is roughly 3.1k 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 Jk?

Skills that share tags, products or a category with Jk: Jenkinsfile Validator (akin-ozer/cc-devops-skills, 319 stars), Postman Newman Automation (sickn33/agentic-awesome-skills, 47k stars), Bash Defensive Patterns (promovaweb/setupvibe, 101 stars) and Maintainer Triage (redis/node-redis, 18k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Jk?

majiayu000 (a GitHub user) maintains it in majiayu000/claude-skill-registry, which has 666 GitHub stars. The repository holds 1,273 skills in this directory. The repository was last updated on October 7, 2026.

Source: majiayu000/claude-skill-registry on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.