A rule-combining tool that joins project-specific coding rules from several projects into one portable set. It can turn shared patterns from .local.md files into general principles.

Combining extracted rules from multiple projects and creating a shared rule set for future work.

It removes the need to copy common rules between projects and helps identify practices that should apply across them.

merge-rules — Skill for Claude Code by hiroro-work/claude-plugins

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 hiroro-work/claude-plugins --skill merge-rules

Clone the repo

git clone --depth 1 https://github.com/hiroro-work/claude-plugins

Made for: Claude Code.

Or install merge-rules, the plugin that ships this one along with the rest of its 1 skill.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/hiroro-work/claude-plugins/merge-rules/github.svg)](https://agentmods.dev/skills/hiroro-work/claude-plugins/merge-rules)

Your own site

<a href="https://agentmods.dev/skills/hiroro-work/claude-plugins/merge-rules"><img src="https://agentmods.dev/badge/skills/hiroro-work/claude-plugins/merge-rules/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/hiroro-work/claude-plugins/merge-rules"><img src="https://agentmods.dev/badge/skills/hiroro-work/claude-plugins/merge-rules.svg" alt="Reviewed on agentmods" width="80" 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 3,174 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown 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.

Model	Per session	Once invoked
Fable 5.1	$0.00032	$0.03174
Opus 5.5	$0.00013	$0.01270
Sonnet 5.5	$0.00006	$0.00635
Haiku 4.5	$0.00003	$0.00317

Measured 1mo ago against content hash 05bdb6aa1f8e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

merge-rules scanned grade B with 1 finding 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 1mo 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

- **`language` resolution order:** Skill config → Claude Code settings (`~/.claude/settings.json` → `language` field) → default `ja`

skills/merge-rules/SKILL.md · 248 lines

The source is not reproduced here

No licence file

Read it on GitHub

Files

What ships with it

1 file 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.

.claude-plugin/plugin.json 438 B

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.

1mo ago Changed 05bdb6aa1f8e
2mo ago First seen · 248 lines · 32 tokens per session scan B 120273cbb016

Subscribe to this mod's changes

merge-rules is a skill published in the GitHub repository hiroro-work/claude-plugins (47 stars, last pushed 3d ago), with no licence file. It adds 32 tokens to every session and 3,174 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Writing and docs

merge-rules next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
merge-ruleshiroro-work/claude-plugins	Skill	47	3d ago	none	B	32	Claude Code
imagegenopenai/codex	Skill	134k	today	Apache-2.0	A	113	Codex
local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	yesterday	MIT	A	200	Claude Code, Codex
playwright-climicrosoft/playwright	Skill	100k	yesterday	Apache-2.0	A	19	Claude Code
browser-automationopenclaw/openclaw	Skill	394k	today	MIT	A	36	Claude Code
systematic-debuggingobra/superpowers	Skill	314k	4d ago	MIT	A	21	Claude Code
next-cache-components-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	95	Claude Code

merge-rules

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade B, and why

Reads agent configuration directoriesmediumAgent snooping

The source is not reproduced here

No licence file

What ships with it

What this file has done since we first saw it

merge-rules compared with skills from other repositories