archlang-edit-plan SKILL.md skillA

archlang-edit-plan from chanmeng666/archlang is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add chanmeng666/archlang/archlang-edit-plan@git:20261014.c95600e

Pins git:20261014.c95600e in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
chanmeng666/archlang
Path
skills/archlang-edit-plan/SKILL.md
Versions recorded
3
Latest version
git:20261014.c95600e, committed Oct 14, 2026
First version recorded
Oct 9, 2026
Size
4,096 bytes
Repository stars
24
License
MIT

Use when the user wants to change an existing ArchLang .arch floor plan, e.g. "make the bedroom 1 m wider", "add a bathroom next to the hall", "move the front door to the south wall", "merge the kitchen into the living room". Reads the plan's facts with the archlang CLI, makes the smallest edit that does the job, and re-verifies. Not for writing a plan from a brief (archlang-brief-to-plan).

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Edit an existing plan

Change a `.arch` file without breaking what already works.
If `archlang` is not on the path, write `npx -y @chanmeng666/archlang` in its place.
Never run a bare `arch`: on Linux, macOS and Git Bash that name is the coreutils command.

This skill is a workflow, not a language reference. Run `archlang spec` for the language and
`archlang <cmd> --help` for a command's flags.

## Scope

- Run the `archlang` CLI commands below and no other program.
- Change the one `.arch` file the user asked you to edit (`plan.arch` below). If the user has not
  named it, ask. Besides it, write only the drawing the CLI renders and the `.bak` copy that
  `--backup` keeps.
- The user's explicit instructions take priority over these steps.

## Steps

1. **Record the starting state.** Run `archlang validate plan.arch --json` and
   `archlang describe plan.arch --select rooms,totals --json`. Keep both results: they are what you
   compare against at the end. If the plan already has errors, tell the user before you edit.
2. **Read only what the change touches.** `archlang describe plan.arch --room <ids> --json` returns
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add chanmeng666/archlang/archlang-edit-plan@sha256:06c0b19a89071af3

The line at the top of this page pins the label git:20261014.c95600e, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_6hvdkpsk2eymzhds.svg)](https://markdownregistry.com/a/art_6hvdkpsk2eymzhds)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Oct 9, 2026 and Oct 14, 2026, about one every 3 days.

versioncommittedcommitsizeaudit
git:20261014.c95600e latest2026-10-14 c95600e 4,096 BA view · diff
git:20261013.89aa1852026-10-13 89aa185 3,745 BA view · diff
git:20261009.9df3eda2026-10-09 9df3eda 3,551 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (4096 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

chanmeng666/archlang · 24 stars · license MIT · pushed 2026-10-24 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_6hvdkpsk2eymzhds
GET https://markdownregistry.com/api/v1/resolve?ref=chanmeng666/archlang/archlang-edit-plan
GET https://markdownregistry.com/api/v1/blob/06c0b19a89071af31b2dc276b9c2d2ca335a18953904513c4ea9f2260eaa8936

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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Every file in chanmeng666/archlang

Other files named archlang-edit-plan

archlang-edit-plan SKILL.md skill
chanmeng666/archlang · plugins/archlang/skills/archlang-edit-plan/SKILL.md · Use when the user wants to change an existing ArchLang .arch floor plan, e.g. "make the bedroom 1 m wider", "add a…
git:20261014.c95600e · audit A · 24 stars

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