create-multistage-dockerfile SKILL.md skillA
create-multistage-dockerfile from pjt222/agent-almanac is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add pjt222/agent-almanac/create-multistage-dockerfile@v1.0Pins v1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- pjt222/agent-almanac
- Path
i18n/caveman-lite/skills/create-multistage-dockerfile/SKILL.md- Versions recorded
- 4
- Latest version
- v1.0, committed Aug 17, 2026
- First version recorded
- Apr 19, 2026
- Size
- 7,221 bytes
- Repository stars
- 43
- License
- MIT
Create multi-stage Dockerfiles that separate build and runtime environments for minimal production images. Covers builder/runtime stage separation, artifact copying, scratch/distroless/alpine targets, and size comparison. Use when production images are too large, when build tools are included in the final image, when you need separate dev and prod images from one Dockerfile, or when deploying to constrained environments like edge or serverless.
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
# Create Multi-Stage Dockerfile Build multi-stage Dockerfiles that produce minimal production images by separating build tooling from runtime. ## When to Use - Production images are too large (>500MB for compiled languages) - Build tools (compilers, dev headers) are included in the final image - Need separate images for development and production from one Dockerfile - Deploying to constrained environments (edge, serverless) ## Inputs - **Required**: Existing Dockerfile or project to containerize - **Required**: Language and build system (npm, pip, go build, cargo, maven) - **Optional**: Target runtime base (slim, alpine, distroless, scratch) - **Optional**: Size budget for final image ## Procedure ### Step 1: Identify Build vs Runtime Dependencies | Category | Build Stage | Runtime Stage | |---|---|---| | Compilers | gcc, g++, rustc | Not needed | | Package managers | npm, pip, cargo | Sometimes (interpreted langs) | | Dev headers | `-dev` packages | Not needed | | Source code | Full source tree | Only compiled output | | Test frameworks | jest, pytest | Not needed | ### Step 2: Structure the Multi-Stage Build …
Read the whole file at its exact version.
How to install
mdr add pjt222/agent-almanac/create-multistage-dockerfile@sha256:44d567b4f05570bdThe line at the top of this page pins the label v1.0, 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_bfqiqr7csxmomvnv)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Apr 19, 2026 and Aug 17, 2026, about one every 40 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0 latest | 2026-08-17 | a784899 | 7,221 B | A | view · diff |
| v1.0 | 2026-06-05 | 75ded7a | 7,192 B | A | view · diff |
| v1.0 | 2026-04-23 | bc66d7e | 7,238 B | A | view · diff |
| v1.0 | 2026-04-19 | e334ebd | 7,258 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 (7221 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
pjt222/agent-almanac · 43 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bfqiqr7csxmomvnv GET https://markdownregistry.com/api/v1/resolve?ref=pjt222/agent-almanac/create-multistage-dockerfile GET https://markdownregistry.com/api/v1/blob/44d567b4f05570bdabbf290b9269547c68c365f38d8b7ef51a407250ea984c9b
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.