Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/kaizakin/dotfiles/codebase-onboardingnpx skills add kaizakin/dotfiles --skill codebase-onboardinggit clone --depth 1 https://github.com/kaizakin/dotfilesWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00199 | $0.02203 |
| Opus 5 | $0.00100 | $0.01102 |
| Sonnet 5 | $0.00040 | $0.00441 |
| Haiku 4.5 | $0.00020 | $0.00220 |
Grade A, and why
codebase-onboarding scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 82 lines · 199 tokens per session scan A a7a8d82fdfff
codebase-onboarding is a skill published in the GitHub repository kaizakin/dotfiles (8 stars, last pushed 6d ago), with no licence file. It adds 199 tokens to every session and 2,203 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
qa-handoff
Generate a hands-on QA testing guide as a self-contained HTML page — for Rails apps or static (Hugo) sites. --publish uploads the HTML to the project's configured QA host.
merge-pr
Merge a pull request with status checks, squash merge, and branch cleanup. Handles worktree contexts.
checkpoint
Quick 2-minute status update on current phase, completed work, blockers, and health check.
po-translate
Orchestrate English→Japanese translation of po/ja.po — classify, delegate translation/review to subagents, iterate until clean.
gui-debug
Verify a rendering or window-chrome change in any macOS GUI app unattended — find its CGWindowID via JXA, capture that window alone (with per-pixel alpha) using screencapture -l, and read exact RGBA via NSBitmapImageRep. Use for blur/opacity/corner-radius/glyph/color rendering bugs where a screenshot or pixel value is…
bootstrap-prd
Set up PRD-driven development infrastructure for a new project, including directory structure, templates, and roadmap.