onboard-codebase SKILL.md skillA
onboard-codebase from eltmon/overdeck is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add eltmon/overdeck/onboard-codebase@git:20260522.817c2c7Pins git:20260522.817c2c7 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- eltmon/overdeck
- Path
sync-sources/skills/onboard-codebase/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260522.817c2c7, committed May 22, 2026
- Size
- 716 bytes
- Repository stars
- 35
- License
- MIT
Systematic approach to understanding a new codebase.
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 Onboarding ## 1. High-Level Structure - Read README.md - Map directory structure - Identify main entry points ## 2. Tech Stack - What languages/frameworks? - What build tools? - What testing frameworks? - What CI/CD? ## 3. Architecture Patterns - How is code organized? (layers, modules, services) - How does data flow? - What are the key abstractions? ## 4. Development Workflow - How to run locally? - How to run tests? - How to deploy? ## 5. Document Findings Create a summary with: - Architecture diagram (ASCII or mermaid) - Key files and their purposes - Common patterns used - Gotchas and quirks
Read the whole file at its exact version.
How to install
mdr add eltmon/overdeck/onboard-codebase@sha256:575599ef4cf086edThe line at the top of this page pins the label git:20260522.817c2c7, 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_s76fjhank2benbq5)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 22, 2026.
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 (716 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
eltmon/overdeck · 35 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_s76fjhank2benbq5 GET https://markdownregistry.com/api/v1/resolve?ref=eltmon/overdeck/onboard-codebase GET https://markdownregistry.com/api/v1/blob/575599ef4cf086ed42b66bbc8332667c019567a67a03135ba04874f65126af57
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.