containers SKILL.md skillA
containers from xobotyi/cc-foundry is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add xobotyi/cc-foundry/containers@git:20260314.9629b35Pins git:20260314.9629b35 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- xobotyi/cc-foundry
- Path
plugins/infrastructure/skills/containers/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260314.9629b35, committed Mar 14, 2026
- First version recorded
- Mar 13, 2026
- Size
- 15,496 bytes
- Repository stars
- 23
- License
- MIT
Docker and Podman container management: Dockerfile optimization, multi-stage builds, Compose v2 orchestration, networking, volumes, security hardening, supply chain integrity, health checks, resource limits, Quadlet systemd integration, and debugging. Invoke whenever task involves any interaction with containers — writing Dockerfiles, configuring Compose, managing Podman Quadlets, reviewing container security, debugging container issues, or setting up image signing and scanning.
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
# Containers Security is not optional. Every container runs non-root, with dropped capabilities, on a minimal base image. Convenience defaults that weaken security posture are bugs, not trade-offs. ## Security Rules These are non-negotiable defaults for every container configuration. Apply unconditionally — no exceptions for development, convenience, or "temporary" setups. - **Run as non-root.** Add a `USER` instruction with explicit UID/GID. Never run production containers as root. - **Drop all capabilities.** `--cap-drop=ALL`, then add back only what the application genuinely requires. Most applications need zero. - **Enable no-new-privileges.** `--security-opt=no-new-privileges` prevents setuid/setgid escalation. - **Use read-only filesystem.** `--read-only` with `tmpfs` mounts for `/tmp`, `/run`, and any directories the app writes to. - **Never pass secrets via ENV.** Visible in `docker inspect`, logs, and child processes. Use mounted secret files or Docker secrets. - **Scan images before deployment.** Use Docker Scout, Trivy, or Grype in CI. Block images with critical CVEs. …
Read the whole file at its exact version.
How to install
mdr add xobotyi/cc-foundry/containers@sha256:5ba81fdb3c35731fThe line at the top of this page pins the label git:20260314.9629b35, 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.
[](https://markdownregistry.com/a/art_5ckdttbptukires4)
0 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Mar 13, 2026 and Mar 14, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260314.9629b35 latest | 2026-03-14 | 9629b35 | 15,496 B | A | view · diff |
| git:20260313.02a8e7c | 2026-03-13 | 02a8e7c | 16,069 B | A | view · diff |
| git:20260313.e5b700b | 2026-03-13 | e5b700b | 15,667 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (15496 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
xobotyi/cc-foundry · 23 stars · license MIT · pushed 2026-10-31 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_5ckdttbptukires4 GET https://markdownregistry.com/api/v1/resolve?ref=xobotyi/cc-foundry/containers GET https://markdownregistry.com/api/v1/blob/5ba81fdb3c35731f93e6844143bdecdf7d24fbce37ea9214e45050e958f1aaf7
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.
More from xobotyi/cc-foundry
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