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

Use it after modifying grammars, schemas, CLI definitions, error lists, or other generator inputs, then inspect the reported diff.

It helps confirm that generated output matches its source files and reveals unexpected changes.

regen — Command for Claude Code by ChanMeng666: A command that runs the project’s source-code generators and…

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/chanmeng666/archlang/regen

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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/chanmeng666/archlang/regen.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.svg" alt="Measured on agentmods" 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 648 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.

Model	Per session	Once invoked
Fable 5	$0.00009	$0.00648
Opus 5	$0.00005	$0.00324
Sonnet 5	$0.00002	$0.00130
Haiku 4.5	$0.00001	$0.00065

Measured 3d ago against content hash 818274114326, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 3d 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 · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 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

npm run gen:all — runs all eight generators (gen:grammars, gen:errors, gen:cli, gen:spec, gen:llms, gen:gbnf, gen:plan-schema, gen:intent-schema).
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 \
  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.

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` + `SKILL.md` + `src/manifest.ts` + `src/error-catalog.ts`
`grammars/archlang.gbnf`	`src/grammar/tokens.ts`
`schemas/plan.schema.json`	`PLAN_JSON_SCHEMA`
`schemas/intent.schema.json`	`INTENT_JSON_SCHEMA`

A diff with no matching source edit means either uncommitted drift you are about to fix, or a nondeterministic generator — chase it down, do not commit the mystery.

Read the full file on GitHub · 57 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.

3d 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 (8 stars, last pushed 3d ago), licensed MIT. It adds 9 tokens to every session and 648 once invoked, about $0.0000 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.

Backend and APIs agentic-ai ai-agents architecture cad cli compiler

regen

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

How it starts

Regenerate generated artifacts

Steps

What this file has done since we first saw it

Other commands, from other repositories

README

tokenless-stats

dispatcher

fix-issue

release

cadence-check