Agent skill

Helm Chart

by astronomer in astronomer/astronomer

A skill your agent uses for Helm chart work - creating charts, modifying existing charts, values design, testing.

Custom licenceAuto-check passedDevOps & Cloud

Install Helm Chart

skills CLI
$ npx skills add astronomer/astronomer --skill helm-chart -a claude-code

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

GitHub CLI
$ gh skill install astronomer/astronomer helm-chart --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/astronomer/astronomer.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/helm-chart .claude/skills/helm-chart && 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
helm-chart
GitHub stars
491
Token cost
~6.5k tokens
SKILL.md length
1,023 words
Files
1
Skills in repo
4
Repo updated
First seen
Licence
Custom licence

At a glance

A skill your agent uses for Helm chart work - creating charts, modifying existing charts, values design, testing.

  • Works in 6 steps: Reference Helm Chart Best Practices → Use helpers for reusable patterns → Provide sensible security defaults → …
  • Helm chart work - creating charts
  • SKILL.md covers Working on the Astronomer APC…, Versioning Strategy, Dependency Management and Upgrade Strategies, plus 1 more section
  • Calls helm, kubectl and uv; reaches charts.bitnami.com and img.shields.io; needs TEST_TOKEN and DB_PASSWORD

What it does

Helm Chart is an agent skill from astronomer/astronomer. Use for Helm chart work - creating charts, modifying existing charts, values design, testing. For the Astronomer APC repository, see docs/architecture.md for the platform overview.

Its SKILL.md is about 6.5k 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 Container orchestration. It works with Helm, Kubernetes, Prometheus and Astro. The repository describes itself as: Helm Charts for the Astronomer Platform, Apache Airflow as a Service on Kubernetes.

When your agent uses it

  • Helm chart work - creating charts
  • Modifying existing charts

Example prompts

  • “/helm-chart”

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Reference Helm Chart Best Practices
  2. Use helpers for reusable patterns
  3. Provide sensible security defaults
  4. Include comprehensive values documentation
  5. Add values.schema.json for IDE support
  6. All changes must pass pre-commit checks with prek run --all-files

What it can do on your machine

Read from SKILL.md and the folder at commit f9b0382. 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:

    • helm
    • kubectl
    • uv

    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:

    • charts.bitnami.com
    • img.shields.io
    • json-schema.org
    • github.com

    Also links to:

    • helm.sh

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

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • TEST_TOKEN
    • DB_PASSWORD

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

Context cost

Helm Chart loads about 6.5k tokens when it runs. Until then it costs about 48 tokens; SKILL.md has 1,023 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~48
When it runs · the whole SKILL.md, loaded when a task matches
~6.5k

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 1,023 words (~6,451 tokens).

“APC is an umbrella chart: templates live at the umbrella level (under templates/ and charts//templates/), sub-charts are tightly coupled and not intended to be used standalone, and a single values.yaml controls the entire platform. See docs/architecture.md for the installation modes…”

— opening of SKILL.md by astronomer, Custom licence
name
helm-chart

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/helm-chart of astronomer/astronomer.

Open the folder on GitHubat commit f9b0382

Compare with similar skills

Helm Chart 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.

Helm Chart compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Helm Chart this skillastronomer/astronomer491—~6.5kAutomated safety check: PassCustom licence
Chart Testsastronomer/airflow-chart297—~2.8kAutomated safety check: PassCustom licence
Functional Testsastronomer/airflow-chart297—~2.2kAutomated safety check: PassCustom licence
Helm Chartastronomer/airflow-chart297—~6.4kAutomated safety check: PassCustom licence
Kubernetes Deploymentaiskillstore/marketplace4305 repos~839Automated safety check: PassNone
KubeSphere Gateway Managementkubesphere/kubesphere17k—~2.9kAutomated safety check: PassCustom licence

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  • Chart Tests

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  • Functional Tests

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More from astronomer/astronomer

  • Chart Tests

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    491 GitHub stars~2.2k tokensUpdated today
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  • Tools

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Categories

Questions about Helm Chart

What does Helm Chart do?

A skill your agent uses for Helm chart work - creating charts, modifying existing charts, values design, testing. Helm Chart is an agent skill from astronomer/astronomer. Use for Helm chart work - creating charts, modifying existing charts, values design, testing.

When should I use Helm Chart?

Helm Chart fits situations like: helm chart work - creating charts; modifying existing charts.

How do I install Helm Chart in Claude Code?

Run `npx skills add astronomer/astronomer --skill helm-chart -a claude-code`. Or copy the skill folder (.agents/skills/helm-chart in astronomer/astronomer) into .claude/skills/helm-chart in your project. Claude Code loads it when a task matches its description.

How do I install Helm Chart in Codex?

Run `npx skills add astronomer/astronomer --skill helm-chart -a codex`. Or copy the skill folder (.agents/skills/helm-chart in astronomer/astronomer) into .agents/skills/helm-chart in your project. Codex loads it when a task matches its description.

Can I use Helm Chart 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 astronomer/astronomer --skill helm-chart -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/helm-chart, .gemini/skills/helm-chart, .github/skills/helm-chart and .opencode/skills/helm-chart in your project.

What does Helm Chart need to run?

Going by SKILL.md and its folder, Helm Chart needs the command-line tools its instructions call (helm, kubectl and uv) and credentials named TEST_TOKEN and DB_PASSWORD.

Does Helm Chart access the network?

SKILL.md names 5 domains. In commands or code: charts.bitnami.com, img.shields.io, json-schema.org and github.com; the agent is likely to contact these when it follows the instructions. As links in the text: helm.sh. This is read from the text; nothing was executed.

Is Helm Chart 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 Helm Chart use?

Helm Chart 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 Helm Chart use?

About 6.5k tokens (SKILL.md is roughly 26k 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 Helm Chart?

Skills that share tags, products or a category with Helm Chart: Chart Tests (astronomer/airflow-chart, 297 stars), Functional Tests (astronomer/airflow-chart, 297 stars), Helm Chart (astronomer/airflow-chart, 297 stars) and Kubernetes Deployment (aiskillstore/marketplace, 430 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Helm Chart?

astronomer (a GitHub organization) maintains it in astronomer/astronomer, which has 491 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on October 8, 2026.

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