castorini-onboard

castorini-onboard is a skill for Claude Code, Codex from castorini/castorini-skills. It costs 59 tokens per session (979 once invoked), scanned A, original, Apache-2.0.

A setup assistant for four Python repositories: nuggetizer, ragnarok, rank_llm, and umbrela. It detects the relevant repository, installs its dependencies, and runs basic checks.

In plain words
What is it for?
Use it to prepare one or several supported Castorini projects for development, including shared environment setup and smoke tests.
Why use it?
It reduces the manual work of cloning repositories, choosing an installation method, setting up virtual environments, and checking that the tools run.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to prepare one or several supported Castorini projects for development, including shared environment setup and smoke tests.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/castorini/castorini-skills/castorini-onboard
Install

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.

Any agent
npx skills add castorini/castorini-skills --skill castorini-onboard
Clone the repo
git clone --depth 1 https://github.com/castorini/castorini-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for castorini-onboard

README.md
[![agentmods](https://agentmods.dev/badge/skills/castorini/castorini-skills/castorini-onboard/github.svg)](https://agentmods.dev/skills/castorini/castorini-skills/castorini-onboard)
Your own site
<a href="https://agentmods.dev/skills/castorini/castorini-skills/castorini-onboard"><img src="https://agentmods.dev/badge/skills/castorini/castorini-skills/castorini-onboard/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for castorini-onboard

Your own site · 80×15
<a href="https://agentmods.dev/skills/castorini/castorini-skills/castorini-onboard"><img src="https://agentmods.dev/badge/skills/castorini/castorini-skills/castorini-onboard.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 979 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00059 $0.00979
Opus 5 $0.00030 $0.00490
Sonnet 5 $0.00012 $0.00196
Haiku 4.5 $0.00006 $0.00098

Measured 12d ago against content hash f99aa8053655, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

castorini-onboard 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 12d 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.

skills/castorini-onboard/SKILL.md · 89 lines

How it starts

The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Castorini Onboard

Unified development environment setup for the Castorini Python repos, whether the user wants one repo or several.

Supported Repos

Repo PyPI Name CLI Binary GitHub
nuggetizer nuggetizer nuggetizer castorini/nuggetizer
ragnarok pyragnarok ragnarok castorini/ragnarok
rank_llm rank-llm rank-llm castorini/rank_llm
umbrela umbrela umbrela castorini/umbrela

Context Detection

  1. If cwd is inside one of the 4 repos (check for pyproject.toml with matching project name) → install that one.
  2. If the user explicitly asks for one repo, install only that repo.
  3. If cwd is the monorepo root or elsewhere and the request is ambiguous → ask which repo(s) to install, or install all if the user says so.

Prerequisites

  • Python 3.11+
  • Git (SSH access to github.com:castorini)

uv Detection

command -v uv

If present, use uv silently. If absent, ask the user once: install uv or proceed with pip.

Virtual Environment Preference

  • Prefer a shared .venv-shared in the current workspace root over repo-local .venv directories.
  • Before creating any environment, check whether .venv-shared already exists in the current workspace root and reuse it if present.
  • Only fall back to a repo-local environment if the shared environment is unavailable or the user explicitly asks for isolation.

Install Flow

  1. Resolve which repository or repositories are in scope.
  2. Clone any missing repositories with SSH access to castorini/<repo>.
  3. Reuse .venv-shared when it already exists in the workspace root.
  4. Prefer uv for sync and dependency-group support.
  5. Fall back to pip only when uv is unavailable or the user explicitly asks.
  6. For the common multi-repo cloud/API source install, prefer one shared editable install command:
uv pip install \
  -e './ragnarok[cloud,api]' \
  -e './nuggetizer[api]' \
  -e './umbrela[cloud,api]' \
  -e './rank_llm[openai,api]'

Read the full file on GitHub · 89 lines

Files

What ships with it

2 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.

Changes

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.

  1. 12d ago First seen · 89 lines · 59 tokens per session scan A f99aa8053655

Subscribe to this mod's changes

castorini-onboard is a skill published in the GitHub repository castorini/castorini-skills (2 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 59 tokens to every session and 979 once invoked, about $0.0003 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.

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