add-language-rules

A workflow scaffold for adding a programming language to the rules system in everything-claude-code. It describes the files needed for style, hooks, patterns, security, and testing guidance.

In plain words
What is it for?
Use it when adding language-specific rules under rules/{language}/, then verify the files touched and summarize remaining review work.
Why use it?
It turns a language addition into a clear set of files and checks, reducing the chance that important guidance is omitted.

Command for Claude Code

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 commands/arogyareddy/https-github.com-affaan-m-everything-claude-code1/add-language-rules
Clone the repo
git clone --depth 1 https://github.com/ArogyaReddy/https-github.com-affaan-m-everything-claude-code1

Made for: Claude Code.

Per session 20 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 274 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00020 $0.00274
Opus 5 $0.00010 $0.00137
Sonnet 5 $0.00004 $0.00055
Haiku 4.5 $0.00002 $0.00027

Measured yesterday against content hash 9c2a0c46e0ac, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

add-language-rules 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 yesterday.

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.

Origin

This is a copy

100% identical to add-language-rules — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/commands/add-language-rules.md · 39 lines

What it actually says

/add-language-rules

Use this workflow when working on add-language-rules in everything-claude-code.

Goal

Adds a new programming language to the rules system, including coding style, hooks, patterns, security, and testing guidelines.

Common Files

  • rules/*/coding-style.md
  • rules/*/hooks.md
  • rules/*/patterns.md
  • rules/*/security.md
  • rules/*/testing.md

Suggested Sequence

  1. Understand the current state and failure mode before editing.
  2. Make the smallest coherent change that satisfies the workflow goal.
  3. Run the most relevant verification for touched files.
  4. Summarize what changed and what still needs review.

Typical Commit Signals

  • Create a new directory under rules/{language}/
  • Add coding-style.md, hooks.md, patterns.md, security.md, and testing.md files with language-specific content
  • Optionally reference or link to related skills

Notes

  • Treat this as a scaffold, not a hard-coded script.
  • Update the command if the workflow evolves materially.
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. yesterday First seen · 39 lines · 20 tokens per session scan A 9c2a0c46e0ac

Subscribe to this mod's changes

add-language-rules is a command published in the GitHub repository ArogyaReddy/https-github.com-affaan-m-everything-claude-code1 (2 stars, last pushed 4mo ago), licensed MIT. It adds 20 tokens to every session and 274 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to add-language-rules, differing in 2 lines, and is treated as a copy.