uv-sbom: Skill for Claude Code

.claude/skills/split/SKILL.md

split is a skill for Claude Code from Taketo-Yoda/uv-sbom. It costs 32 tokens per session (1,128 once invoked), scanned A, original, MIT.

An issue-planning workflow that breaks a large GitHub Issue into smaller Issues, each sized for one focused pull request. It proposes the breakdown, waits for confirmation, then creates the subtasks.

In plain words
What is it for?
Use it to split an epic, refactor, or feature into implementation tasks and record the relationship between the parent Issue and its subtasks.
Why use it?
Large issues can mix unrelated work, hide dependencies, and produce unwieldy pull requests. This gives the work clearer boundaries before implementation starts.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is Taketo-Yoda/uv-sbom's own configuration. It tells Claude Code how to work on uv-sbom itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything uv-sbom configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Taketo-Yoda/uv-sbom. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Taketo-Yoda/uv-sbom/develop/.claude/skills/split/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Taketo-Yoda/uv-sbom

Made for: Claude Code.

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 split

README.md
[![agentmods](https://agentmods.dev/badge/skills/taketo-yoda/uv-sbom/split.svg)](https://agentmods.dev/skills/taketo-yoda/uv-sbom/split)
Your own site
<a href="https://agentmods.dev/skills/taketo-yoda/uv-sbom/split"><img src="https://agentmods.dev/badge/skills/taketo-yoda/uv-sbom/split.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,128 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 $0.00032 $0.01128
Opus 5 $0.00016 $0.00564
Sonnet 5 $0.00006 $0.00226
Haiku 4.5 $0.00003 $0.00113

Measured 2d ago against content hash 78b9febc86d3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

split 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.

.claude/skills/split/SKILL.md · 170 lines

How it starts

The opening of the file, as written. The whole thing — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/split - Issue Decomposition Skill

Decomposes a large GitHub Issue into subtask Issues, each implementable autonomously in a single PR.

Language Requirement

IMPORTANT: All created GitHub Issues MUST be written in English.

Workflow Overview

Read Parent Issue → Propose Decomposition → Wait for Confirmation → Create Subtask Issues → Comment on Parent

Steps

Step 1: Read the Parent Issue (MANDATORY)

gh issue view <issue-number>

Extract:

  • Issue title and overall scope
  • Acceptance criteria
  • Files to modify
  • Any existing dependencies or constraints

Step 2: Analyze and Propose Decomposition

Identify subtask boundaries using these dimensions:

Dimension Example
Module boundary Changes touch independent modules (e.g., adapters/ vs domain/)
Concern boundary "add struct" vs "add tests" vs "update CLI flag"
Sequential dependency Subtask B requires subtask A to merge first
Risk boundary Mechanical rename vs logic change should be separate

Granularity rule: Each subtask must be implementable in a single focused PR.

Guard rails:

  • If the issue is already small enough for one PR → report "No split needed. This issue is already scoped for a single PR." Do NOT create any subtask Issues.
  • If decomposition yields more than 7 subtasks → flag over-decomposition and suggest grouping before proceeding.
  • Line-count target: Aim for ≤ 200 changed lines per subtask PR. If a subtask is estimated to exceed this, consider splitting it further. This is a guideline, not a hard limit.

Present the proposed subtasks to the user in this format:

Proposed split for #<parent>:

1. [Short title] — [one-line rationale]
2. [Short title] — [one-line rationale]
...

Dependencies:
- #2 depends on #1 (reason)

Proceed? (yes / adjust / cancel)

Step 3: Wait for Explicit Confirmation

Do NOT create any Issues until the user explicitly confirms.

Accepted responses: "yes", "proceed", "go ahead", or equivalent affirmation. If the user asks for adjustments, revise the proposal and present again. If the user cancels, stop and report "Split cancelled."

Read the full file on GitHub · 170 lines

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. 2d ago First seen · 170 lines · 32 tokens per session scan A 78b9febc86d3

Subscribe to this mod's changes

split is a skill published in the GitHub repository Taketo-Yoda/uv-sbom (5 stars, last pushed yesterday), licensed MIT. It adds 32 tokens to every session and 1,128 once invoked, about $0.0002 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 2026-09-04.

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