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Code research

Skill marktantongco/opencodelinux/skills/code-research

Research open-source repositories to understand how something is built or works.From its SKILL.md

Install
npx -y skills add marktantongco/opencodelinux --skill code-research

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

2 things to look at

  • no licenseNo license file was found in the repository. Code published without one is not open source by default, so using it at work is a question for whoever answers licensing questions where you are.
  • 0 stars0 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

SKILL.md

1.8 KB, 299 tokens by cl100k_base, as published. Nobody here has run it

Code Research

Use github_codebase_search to explore external open-source repositories and understand their implementation details.

When To Use

  • The user asks how an open-source library or framework implements something.
  • You need to understand an external dependency's internals before integrating with it.
  • The user wants to compare how different repos solve a problem.
  • You need to find usage examples or patterns in a public GitHub repo.

Steps

  1. Identify the GitHub repository (e.g. vercel/next.js, facebook/react).
  2. Break the user's question into multiple focused search angles (e.g. entry points, data flow, config, tests).
  3. Fire multiple github_codebase_search calls in parallel — one per angle. Do not run them sequentially.
  4. Read and cross-reference the returned files/sections from all queries.
  5. Summarize findings with concrete file paths and code references.

Parallel Queries

Always decompose the research into 2-4 concurrent searches. For example, to understand how a repo handles authentication:

  • Query 1: "Find the authentication middleware and session handling"
  • Query 2: "Find the login/signup API routes and handlers"
  • Query 3: "Find the auth configuration and token validation"

Run all queries at the same time to minimize latency.

Query Template

"Find how <repo> implements <feature>. Include entry points, key functions, and data flow."

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.

Keep looking

Skills are one crate of 326,645. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.