arch-docs

name	arch-docs
description	Create or refresh `docs/CODE_ARCHITECTURE.md` and `docs/FILE_STRUCTURE.md` from current repo evidence. Use when the user asks to document or refresh repository architecture or file layout. Does NOT touch `README.md`, `docs/INSTALL.md`, `docs/USAGE.md`, or the broader doc set (use `readme-docs`, `setup-install-usage-docs`, or `docset-updater` for those).

Arch docs

Overview

Create or refresh architecture and file-structure documentation from the current repo state. Base statements on observable files and configs, and record unknowns as verification tasks.

Workflow

1. Inspect the repo
   • Read README.md and AGENTS.md.
   • Scan layout with ls -1 and ls -1 ./docs/.
   • Use rg --files to get a fuller inventory when needed.
   • Identify languages, build tooling, entry points, and main executables.
   • Check common manifests (pyproject.toml, pip_requirements.txt, package.json, Cargo.toml, go.mod, Makefile) when present.
   • Locate core logic, scripts, and tests.
   • Check .gitignore for generated artifacts and caches.
   • Run git status -suno to see uncommitted changes.
2. Update policy
   • Remove stale details.
   • Keep accurate sections and restructure for clarity when needed.
   • State facts only; do not invent details.
   • If unclear, add a verification task in the "Known gaps" section.
3. Apply style and consistency
   • Follow docs/MARKDOWN_STYLE.md and docs/REPO_STYLE.md.
   • Use present tense, concrete paths, and relative links.
   • Link file and folder names to their repo paths when mentioned, so they are clickable for details. Markdown links are created using the syntax [link text](URL), where "link text" is the clickable text that appears in the document, and "URL" is the web address or file path the link points to. This allows users to navigate between different content easily. Use file-path link text so readers know the exact filename (good: [docs/MARKDOWN_STYLE.md](docs/MARKDOWN_STYLE.md), bad: [Style Guide for Markdown](docs/MARKDOWN_STYLE.md)). Only include a backticked path when the link text is not the path.
   • Prefer short, scannable bullets.
   • Only include commands verifiable from repo files.
   • Avoid non-ASCII characters unless explicitly required by existing docs.
   • Prefer ISO-8859-1 only when the repo already uses it.
4. Write docs/CODE_ARCHITECTURE.md
   • Title: "Code architecture"
   • Sections to include when applicable:
     • Overview
     • Major components (what, where, key dependencies)
     • Data flow (primary use case end-to-end)
     • Testing and verification (only if verifiable)
     • Extension points (where to add code/modules/integrations)
     • Known gaps (verification tasks only)
5. Write docs/FILE_STRUCTURE.md
   • Title: "File structure"
   • Sections to include when applicable:
     • Top-level layout (key dirs/files with one-line purpose)
     • Key subtrees (large directories that need clarification)
     • Generated artifacts (what/where/git ignored)
     • Documentation map (docs location and root docs)
     • Where to add new work (code/tests/docs/scripts/data)

Repository structure

When showing a directory tree, use ASCII only. Do not use box drawing characters.

• Allowed: |, +-, `-, spaces
• Not allowed: box-drawing characters such as U+251C, U+2500, U+2502, U+2514

Example (ASCII only):

site_docs/
+- index.md
+- biochemistry/
|  `- topic01/
|     `- index.md
`- genetics/
   `- topic01/
      `- index.md
mkdocs.yml

6. Wrap up
   • Save both files.
   • Leave README.md to readme-docs, the sole owner of README content. It links docs/CODE_ARCHITECTURE.md and docs/FILE_STRUCTURE.md from README once they exist. This skill owns only the two architecture docs.
   • Update docs/CHANGELOG.md directly when this skill runs as a standalone task; under delegate-manager-to-subagents, dispatch a docs subagent to add the entry.
   • Summarize what changed and what could not be verified.
   • Note that docs-only changes do not require tests unless otherwise requested.

Notes

• Prefer to trim and correct existing docs before rewriting from scratch.
• If the repo lacks needed evidence, add a "Known gaps" bullet with a verification task.

Example requests

• "Update the architecture and file structure docs for this repo."
• "Create CODE_ARCHITECTURE.md and FILE_STRUCTURE.md based on current files."
• "Refresh the docs/FILE_STRUCTURE.md map after adding new folders."

Delegated execution

Under delegate-manager-to-subagents, this skill is assigned to a fresh subagent with one bounded task, the relevant repo rules, and one verification step. Do not continue the same subagent across unrelated follow-up work; dispatch a new subagent for each atomic task. See docs/REPO_STYLE.md.