domain-software

domain-software is a skill for Claude Code from HirogaKatageri/hirokata. It costs 180 tokens per session (3,251 once invoked), scanned A, original, MIT.

A software domain guide for an architecture-planning agent. It explains how to inspect a software project, divide work into tickets, choose capabilities, and structure plans.

In plain words
What is it for?
It helps plan software changes by reviewing project documents and structure, finding related code, mapping architecture, and defining ticket and plan contents.
Why use it?
It supplies software-specific rules that a general planning method does not contain, so plans reflect the codebase and its development process.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions CLAUDE.md.

Part of the guild plugin — 20 skills, 15 agents shipped together

Good fit It helps plan software changes by reviewing project documents and structure, finding related code, mapping architecture, and defining ticket and plan contents.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hirogakatageri/hirokata/domain-software
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 HirogaKatageri/hirokata --skill domain-software
Clone the repo
git clone --depth 1 https://github.com/HirogaKatageri/hirokata

Made for: Claude Code.

Or install guild, the plugin that ships this one along with the rest of its 20 skills, 15 agents.

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 domain-software

README.md
[![agentmods](https://agentmods.dev/badge/skills/hirogakatageri/hirokata/domain-software/github.svg)](https://agentmods.dev/skills/hirogakatageri/hirokata/domain-software)
Your own site
<a href="https://agentmods.dev/skills/hirogakatageri/hirokata/domain-software"><img src="https://agentmods.dev/badge/skills/hirogakatageri/hirokata/domain-software/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 domain-software

Your own site · 80×15
<a href="https://agentmods.dev/skills/hirogakatageri/hirokata/domain-software"><img src="https://agentmods.dev/badge/skills/hirogakatageri/hirokata/domain-software.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 180 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,251 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 $0.00180 $0.03251
Opus 5.5 $0.00072 $0.01300
Sonnet 5.5 $0.00036 $0.00650
Haiku 4.5 $0.00018 $0.00325

Measured 8d ago against content hash 939dd68d7854, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

domain-software 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 8d 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/guild/skills/domain-software/SKILL.md · 266 lines

How it starts

The opening of the file, as written. The whole thing — 266 lines — stays where its author put it; the contents beside it link to each section on GitHub.

The software domain profile

You are the strategist and this page is your domain. agents/strategist.md carries the method — read the requirement, survey, cut the work into tickets, assert what may run together, emit the graph, record every deviation. That method knows nothing about software on purpose. This page is what makes it a software plan.

Load this before Step 2 of your workflow. A guild with no domain: key in .guild/config.yaml uses this profile, so on a code project it loads by default and nothing about your behaviour changes.

Six slots. Each is a question the method asks and this profile answers.


Slot 1 — What surveying the current state means

The strategist's method already tells you to read the guild's own library and decision log; that part is domain-free and stays in the agent. This is the rest of it, for a code project:

  1. Read project docs: CLAUDE.md, README.md, ARCHITECTURE.md if they exist
  2. Identify project type: Check package.json, pubspec.yaml, requirements.txt, etc.
  3. Find related code: Search for existing patterns related to the requirement
  4. Map the architecture: Understand directory structure, module organization, key abstractions
  5. Note conventions: Coding style, naming patterns, error handling approaches, test patterns

When to delegate research. Use the Agent tool inline — do not queue a handoff. Research is needed if:

  • The requirement involves a library, framework, API, or protocol you are not confident about, AND no doc row covers it
  • The requirement depends on a third-party service whose current API shape you have not verified (and docs are absent or stale)
  • The codebase uses a technology whose conventions you cannot infer from the files you read
  • A key technical decision hinges on information not present in the codebase or docs

Slot 2 — What two concurrent tickets contend for

In this domain, a ticket owns a set of FILE PATHS, and two tickets may run together only if their sets are disjoint. That set is what goes into task.files.

Read the full file on GitHub · 266 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. 8d ago Changed · +52 lines · +24 tokens per session 939dd68d7854
  2. 1mo ago First seen · 214 lines · 156 tokens per session scan A fea3f2a2f641

Subscribe to this mod's changes

domain-software is a skill published in the GitHub repository HirogaKatageri/hirokata (6 stars, last pushed 9d ago), licensed MIT. It adds 180 tokens to every session and 3,251 once invoked, about $0.0007 per session on Opus 5.5. 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 2026-09-09.

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