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archlang: Command for Claude Code

.claude/commands/regen.md

regen is a command for Claude Code from ChanMeng666/archlang. It costs 9 tokens per session (698 once invoked), scanned A, original, MIT.

A command that runs the project’s source-code generators and reports which generated files changed.

In plain words
What is it for?
Use it after modifying grammars, schemas, CLI definitions, error lists, or other generator inputs, then inspect the reported diff.
Why use it?
It helps confirm that generated output matches its source files and reveals unexpected changes.

Command for Claude Code

Written for Claude Code: installed under .claude/.

This is ChanMeng666/archlang's own configuration. It tells Claude Code how to work on archlang 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 archlang configures →

not rated 24repo +4 changed 10d ago A scan 9 tokens original MIT
View source ↗ ChanMeng666/archlang archlang.uk
Reuse

Borrowing it

Nothing to install: this file belongs to ChanMeng666/archlang. 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/ChanMeng666/archlang/main/.claude/commands/regen.md
Clone the repo
git clone --depth 1 https://github.com/ChanMeng666/archlang

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 regen

README.md
[![agentmods](https://agentmods.dev/badge/commands/chanmeng666/archlang/regen/github.svg)](https://agentmods.dev/commands/chanmeng666/archlang/regen)
Your own site
<a href="https://agentmods.dev/commands/chanmeng666/archlang/regen"><img src="https://agentmods.dev/badge/commands/chanmeng666/archlang/regen/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 regen

Your own site · 80×15
<a href="https://agentmods.dev/commands/chanmeng666/archlang/regen"><img src="https://agentmods.dev/badge/commands/chanmeng666/archlang/regen.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 698 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 $0.00009 $0.00698
Opus 5.5 $0.00004 $0.00279
Sonnet 5.5 $0.00002 $0.00140
Haiku 4.5 $0.00001 $0.00070

Measured 10d ago against content hash 3b6abe3dcf5e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

regen 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 10d 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/commands/regen.md · 59 lines

How it starts

The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Regenerate generated artifacts

Run every single-source generator and inspect exactly what moved.

Steps

  1. npm run gen:all — runs the generators in order (gen:grammars, gen:errors, gen:spec, gen:llms, gen:cli, gen:gbnf, gen:plan-schema, gen:intent-schema).

  2. Show the diff over the generated artifact set (the nine files these eight generators emit):

    git diff --stat -- \
  editors/archlang.tmLanguage.json \
  playground/src/arch-language.js \
  docs/error-codes.md \
  docs/cli-reference.md \
  spec.llm.md \
  llms-full.txt \
  src/context-size.ts \
  grammars/archlang.gbnf \
  schemas/plan.schema.json \
  schemas/intent.schema.json

    Do not skim past docs/cli-reference.md. It is generated from src/manifest.ts, so any CLI change at all — a new flag, a renamed one, a reworded example — lands there and nowhere else. It is the artifact that moves most often.

  3. If any artifact changed WITHOUT a corresponding source change, STOP and investigate. Every generated byte must trace to an edit in a source of truth:

    Generated artifact(s) Source of truth
    editors/archlang.tmLanguage.json, playground/src/arch-language.js src/grammar/tokens.ts (+ the scripts/gen-grammars.ts template / --syn-* values)
    docs/error-codes.md src/error-catalog.ts
    docs/cli-reference.md src/manifest.ts (every command, its exact flag set, its examples[])
    spec.llm.md src/grammar/tokens.ts + examples/
    llms-full.txt spec.llm.md + skills/archlang/SKILL.md + src/manifest.ts + src/error-catalog.ts
    src/context-size.ts the byte size of llms-full.txt and its sections (so gen:cli runs after gen:llms)
    grammars/archlang.gbnf src/grammar/tokens.ts
    schemas/plan.schema.json PLAN_JSON_SCHEMA
    schemas/intent.schema.json INTENT_JSON_SCHEMA

Read the full file on GitHub · 59 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. 10d ago Changed · +2 lines 3b6abe3dcf5e
  2. 1mo ago First seen · 57 lines · 9 tokens per session scan A 818274114326

Subscribe to this mod's changes

regen is a command published in the GitHub repository ChanMeng666/archlang (24 stars, last pushed today), licensed MIT. It adds 9 tokens to every session and 698 once invoked, about $0.0000 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 2026-08-31.

agentic-aiai-agentsarchitecturecadclicompiler
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