Codebase mapping & onboarding

The top-rated launch-quality Codebase mapping & onboarding skill for AI agents is explore (grade A), followed by agentic-legibility and delphi-uses-graph. Skillspace rates 1,688 Codebase mapping & onboarding skills; 240 are launch-quality.

Building a fast architectural mental model of an existing codebase for an agent or new contributor: repo and architecture maps, token-efficient call-graph and dependency exploration, onboarding overviews.

Launch-quality skills first, then by grade, then by our Skill Score, which adds judge reviews, test results, GitHub stars and adoption.

  1. explore A
  2. agentic-legibility B
  3. delphi-uses-graph B
  4. codebase-onboarding B
  5. analyze-project B
  6. c-to-ast B
  7. project-maintainer B
  8. openlore-orient B
  9. lsp-code-analysis B
  10. mcp-google-map-project B
  11. ghost-repo-context B
  12. filescope-mcp B
  13. coderlm B
  14. gograph B
  15. nexus-query B
  16. mapping-codebases B
  17. python-lsp B
  18. sql-manything B
  19. anchor-viz B
  20. codebase-memory-mcp B
  21. identify B
  22. context-manager B
  23. code-module-atlas B
  24. codebase-spec-extractor B
  25. sourcesage-cli B

Frequently asked questions

What is the best Codebase mapping & onboarding skill for AI agents?

The top-rated launch-quality Codebase mapping & onboarding skill for AI agents is explore (grade A), followed by agentic-legibility and delphi-uses-graph. Skillspace rates 1,688 Codebase mapping & onboarding skills; 240 are launch-quality.

How does Skillspace rate Codebase mapping & onboarding skills?

Skillspace grades every Codebase mapping & onboarding skill from A to F with a published scoring engine that reads the skill's SKILL.md: architecture and maturity make the score, and a security scan can cap it. In crowded categories, a judge model also compares the strongest contenders side by side, and some skills are tested head-to-head on real tasks against other skills in the same category (including a deliberately weak one) and a no-skill baseline. Launch-quality skills are graded A to C with a clean safety verdict, and not excluded by a quality filter: the filters catch skills our model's safety screen flags for prompt injection, guardrail bypass, harmful content or credential exposure; test fixtures and attack benchmarks; skills written only for the repository they live in; templates and stubs; and near-duplicate variants and copies of other skills. Ratings were last updated on 24 September 2026; the full method is on the methodology page.

Are Codebase mapping & onboarding skills safe to install?

Of the 1,688 Codebase mapping & onboarding skills Skillspace rates, 1,611 passed its safety scan with no flag from its model, and 77 are flagged: 22 for review, 40 as risky, 12 as unsafe and 3 as test fixtures. Each skill's page shows its safety verdict. A pass is not a guarantee: the scan reads only the skill's SKILL.md, not the scripts or other files it ships, and looks for patterns such as piping a remote script into a shell, reading credentials or hiding actions from the user. Skills are third-party code that Skillspace indexes but does not host or endorse, so read a skill's source on GitHub before you install it.

Skillspace indexes and rates skills; it does not host or endorse them. Run third-party skills at your own risk.