archaeology

archaeology is a Codebase mapping & onboarding skill for AI agents, published by Khan in the perseus repository on GitHub. Skillspace rates archaeology D (55/100) and it passed the safety scan; the rating is based on static analysis only.

Investigates *why* Perseus code is the way it is by tracing its history across the several GitHub repos Perseus has lived in over its lifetime (khan-exercises → Khan/perseus → Khan/webapp → Khan/perseus). Use this skill whenever someone asks a code-archaeology or "why is it like this" question about Perseus — e.g. "why do we have both X and Y widgets?", "why is this implemented this way?", "when/why was this added?", "what's the history behind this file/function?", or hands you a commit, PR, or file and wants its origins explained. Also triggers on the explicit /archaeology command. This matters because Perseus's history bridges multiple repo moves (and predates React), so an ordinary `git blame` in the current checkout dead-ends at the 2022 "initial commit" squash — this skill knows how to bridge those gaps. Do NOT use it for general web research (use deep-research) or for understanding what current code *does* (just read the code).

Grade
D
Quality
55 / 100
Safety
Passed
GitHub stars
1,579

Unproven: rated by static analysis only, not yet compared head-to-head.

Our two independent classifiers differ on this skill's category, so treat the placement as provisional.

This rating describes the version of the repository we crawled; it may have changed since, so go by its current files.

View source on GitHubKhan/perseus

Our review

Architecture
84 / 100
Maturity
Basic: a single SKILL.md
Security scan
Low-risk patterns
License
MIT
Adoption
Adopted by 0 other repositories, in 0 collections

What the scanner flagged

  • mentions secrets in text

Not checked yet

  • Category is a classifier prediction; no model has read this skill yet
  • Not judged on the rubric yet (not a contender in its category)
  • No blind task eval yet
  • Scope (portable / vendor / repo-internal) not assessed; only the top of each category is read for scope
  • Sibling files (scripts, references) not fetched; security scan covers SKILL.md only

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