ubuntu-helm-creator
Generate Kubernetes Helm charts backed by Canonical Ubuntu OCI images (rocks). Use when creating a new Helm chart from scratch for a rock; achieving feature parity with an upstream chart (Bitnami, ArtifactHub, GitHub); adding features to an existing chart. Trigger phrases are "generate helm chart", "create helm chart based on upstream chart", "helm chart for app", "feature parity with upstream", "add feature to chart", "scaffold chart", "ubuntu rock helm", "rock-backed chart". Produces chart scaffolding, values.yaml with image.digest, PSS-Restricted security defaults, Pebble-wired probes, tests, and README.md.
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Does it follow best practices?
Impact
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No eval scenarios have been run
Advisory
Suggest reviewing before use
Security
2 findings — 2 medium severity. This skill can be installed but you should review these findings before use.
W011: Third-party content exposure detected (indirect prompt injection risk)
What this means
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Why it was flagged
Third-party content exposure detected (high risk: 0.85). The workflow runs `scripts/inspect-rock.sh metadata/entrypoint/digest/filesystem` against a user-supplied rock image (e.g., `docker.io/<repo>/<name>:<tag>`), which causes runtime retrieval of outsider-authored OCI image metadata/labels and filesystem contents that are then ingested into the agent’s LLM context (e.g., `<rock-description>` from OCI annotations, entrypoint/plan-derived behavior).
W012: Unverifiable external dependency detected (runtime URL that controls agent)
What this means
The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.
Why it was flagged
Potentially malicious external URL detected (high risk: 0.80). scripts/inspect-rock.sh invokes docker run with the external container image wagoodman/dive:v0.13.1@sha256:f1886e6c32c094fc41a623c1989f5cb3e48aa766da5f0be233f911fc1d85ce10 which will be pulled and executed at runtime (remote code execution via a container image), making it a runtime external dependency.
- Repository
- canonical/helm-charts
- Commit
565995c
- Audited
- Security analysis
Is this your skill?
If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.