split-plan

split-plan is a skill for Claude Code, Codex from HirogaKatageri/hirokata. It costs 47 tokens per session (2,882 once invoked), scanned A, original, MIT.

A planning skill that splits one master software plan into eight plans covering stages from basic infrastructure through tests.

In plain words
What is it for?
Use it to create separate plans for foundational code, data models, services, storage, business rules, state handling, user interfaces, and tests.
Why use it?
It turns a large plan into smaller, organized workstreams and identifies each task's phase, feature track, and complexity.

Skill for Claude CodeCodex

Part of the software plugin — 3 skills shipped together

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.

agentmods
npx agentmods add skills/hirogakatageri/hirokata/split-plan
Any agent
npx skills add HirogaKatageri/hirokata --skill split-plan
Clone the repo
git clone --depth 1 https://github.com/HirogaKatageri/hirokata

Made for: Claude Code, Codex.

Or install software, the plugin that ships this one along with the rest of its 3 skills.

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-plan

README.md
[![agentmods](https://agentmods.dev/badge/skills/hirogakatageri/hirokata/split-plan.svg)](https://agentmods.dev/skills/hirogakatageri/hirokata/split-plan)
Your own site
<a href="https://agentmods.dev/skills/hirogakatageri/hirokata/split-plan"><img src="https://agentmods.dev/badge/skills/hirogakatageri/hirokata/split-plan.svg" alt="Measured on agentmods" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,882 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00047 $0.02882
Opus 5 $0.00023 $0.01441
Sonnet 5 $0.00009 $0.00576
Haiku 4.5 $0.00005 $0.00288

Measured 5d ago against content hash c6502baf74e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

split-plan 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 5d 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.

plugins/software-project/skills/split-plan/SKILL.md · 409 lines

How it starts

The opening of the file, as written. The whole thing — 409 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Split Plan

Transform a master plan into 8 phase-specific implementation plans organized by feature tracks with complexity scoring.

Purpose

Analyze a master plan file and generate 8 separate plan files, one for each phase of clean architecture (Foundational, Models, Services, Data, Rules, State Management, UI, Tests).

Overview

Analyze a master plan file and generate 8 separate plan files, one for each phase of clean architecture:

  1. Foundational - Base abstractions, utilities, infrastructure
  2. Models - Data entities, DTOs, value objects
  3. Services - External APIs, service integrations
  4. Data - Repositories, DAOs, local storage
  5. Rules - Business logic, use cases, validation
  6. State Management - ViewModels, presenters, state handlers
  7. UI - Screens, components, widgets
  8. Tests - Unit tests, integration tests, test utilities

Inputs

  • Master Plan: ${master-plan-path} - The comprehensive plan to analyze
  • Base Name: ${base-name} - Prefix for all generated files

Outputs

Eight phase plan files in tasks/${base-name}/plans/:

  • ${base-name}-01-foundational.md
  • ${base-name}-02-models.md
  • ${base-name}-03-services.md
  • ${base-name}-04-data.md
  • ${base-name}-05-rules.md
  • ${base-name}-06-state-management.md
  • ${base-name}-07-ui.md
  • ${base-name}-08-tests.md

Workflow

1. Analyze Master Plan

Read the master plan from ${master-plan-path} and:

Extract tasks: Identify all implementation tasks from the plan

  • Look for numbered lists, bullet points, sections
  • Extract task titles and descriptions
  • Note dependencies and relationships

Identify feature tracks: Group related tasks by feature/module

  • Use lowercase-with-hyphens naming (e.g., "authentication", "user-profile")
  • Prefer broader groupings over granular ones
  • Ensure tracks can span multiple phases
  • Common tracks: authentication, products, cart, notifications, settings

Classify tasks by phase: Determine which phase each task belongs to

Read the full file on GitHub · 409 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. 5d ago First seen · 409 lines · 47 tokens per session scan A c6502baf74e9

Subscribe to this mod's changes

split-plan is a skill published in the GitHub repository HirogaKatageri/hirokata (5 stars, last pushed 2d ago), licensed MIT. It adds 47 tokens to every session and 2,882 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 2026-08-31.

Related

Other skills, from other repositories

unslop

Humanize LLM output so it reads like a careful human wrote it. Subtracts AI-isms (sycophancy, tricolons, em-dash overuse, "delve"/"tapestry"/"testament", hedging stacks, tidy five-paragraph shapes), engineers burstiness and calibrated uncertainty, and preserves technical accuracy. Supports intensity levels: subtle…

MohamedAbdallah-14/unslop · 146 tokens

unslop-file

Humanize natural-language memory files (CLAUDE.md, todos, preferences, docs) by removing AI-isms and adding burstiness while preserving every code block, URL, path, command, and heading exactly. Two modes: --deterministic (fast, regex-based, no API) and LLM (default, calls Claude for rewrite). Humanized version…

MohamedAbdallah-14/unslop · 107 tokens

unslop-commit

Rewrites commit messages so they sound like a careful human engineer wrote them. Strips AI/marketing slop ("comprehensive solution", "robust implementation", "leverage", "enhance", "seamlessly", "This commit..."). Keeps Conventional Commits format. Subject ≤72 chars (aim ≤50), imperative mood. Body only when "why"…

MohamedAbdallah-14/unslop · 139 tokens

unslop-help

Quick-reference card for unslop modes, sub-skills, and slash commands. One-shot display, not a persistent mode. Trigger: /unslop-help, "unslop help", "what unslop commands", "how do I use unslop".

MohamedAbdallah-14/unslop · 55 tokens

simulator-smart-forms-logic

Author and evolve the Corezoid backend that powers a Simulator.Company Smart Form. Use whenever the user wants a Smart Form to do anything beyond a static layout — load dynamic viewModel data, react to submits, drive page-level changes, trigger notifications, write back to actors — OR wants to modify existing backend…

corezoid/simulator-ai-plugin · 324 tokens

simulator-finance

Simulator.Company financial management specialist. Use when the user wants to manage financial and metric accounts on actors (balances, counters, plan vs fact), record transactions, transfer value between accounts, work with currencies and account-name categories, track non-financial metrics, read balances and…

corezoid/simulator-ai-plugin · 266 tokens