codebase-design SKILL.md skillA
codebase-design from leek/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add leek/agent-skills/codebase-design@git:20261006.192f5aaPins git:20261006.192f5aa in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- leek/agent-skills
- Path
skills/codebase-design/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261006.192f5aa, committed Oct 6, 2026
- First version recorded
- Jul 31, 2026
- Size
- 8,098 bytes
- Repository stars
- 4
- License
- MIT
Shared vocabulary for designing deep modules in any codebase. Use when the user wants to design or improve a class or module's interface, find deepening opportunities, decide where a seam goes, make code more testable or AI-navigable, or when another skill (to-spec, implement, architecture-satisfaction) needs the deep-module vocabulary.
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
# Codebase Design Design **deep modules**: a lot of behaviour behind a small interface, placed at a clean seam, testable through that interface. Use this language and these principles wherever code is being designed or restructured. The aim is leverage for callers, locality for maintainers, and testability for everyone. ## Glossary Use these terms exactly: don't substitute "component," "service," "API," or "boundary." Consistent language is the whole point. **Module**: anything with an interface and an implementation. Deliberately scale-agnostic: a function, class, action, package, or tier-spanning slice. _Avoid_: unit, component, service. **Interface**: everything a caller must know to use the module correctly: the method signatures, but also invariants, ordering constraints, error modes, required configuration, and performance characteristics. _Avoid_: API, signature (too narrow, they refer only to the type-level surface). …
Read the whole file at its exact version.
How to install
mdr add leek/agent-skills/codebase-design@sha256:24ab2fb30dcbd5beThe line at the top of this page pins the label git:20261006.192f5aa, 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_dmouznmjejowfcji)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jul 31, 2026 and Oct 6, 2026, about one every 33 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261006.192f5aa latest | 2026-10-06 | 192f5aa | 8,098 B | A | view · diff |
| git:20260831.64fb3ee | 2026-08-31 | 64fb3ee | 8,061 B | A | view · diff |
| git:20260731.50b3886 | 2026-07-31 | 50b3886 | 8,127 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 (8098 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
leek/agent-skills · 4 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dmouznmjejowfcji GET https://markdownregistry.com/api/v1/resolve?ref=leek/agent-skills/codebase-design GET https://markdownregistry.com/api/v1/blob/24ab2fb30dcbd5be677f35a8f86a57cae4066b30bb1dde8fde04cbad673e90ae
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.
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