What is ascii-hierarchy-diagram?

A tool for turning structured data into a plain-text hierarchy diagram. A hierarchy diagram shows parent-and-child relationships, such as folders and the files inside them.

Use it to document folder layouts, component breakdowns, or other tree-shaped structures.

It makes nested structures readable in terminals and Markdown without requiring a graphical diagram editor.

ascii-hierarchy-diagram — Skill for Claude Code by rohingosling

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.

Any agent

npx skills add rohingosling/claude-skills --skill ascii-hierarchy-diagram

Clone the repo

git clone --depth 1 https://github.com/rohingosling/claude-skills

Made for: Claude Code.

Or install g-render-ascii-hierarchy-diagram, the plugin that ships this one along with the rest of its 1 skill.

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/skills/rohingosling/claude-skills/ascii-hierarchy-diagram/github.svg)](https://agentmods.dev/skills/rohingosling/claude-skills/ascii-hierarchy-diagram)

Your own site

<a href="https://agentmods.dev/skills/rohingosling/claude-skills/ascii-hierarchy-diagram"><img src="https://agentmods.dev/badge/skills/rohingosling/claude-skills/ascii-hierarchy-diagram/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/rohingosling/claude-skills/ascii-hierarchy-diagram"><img src="https://agentmods.dev/badge/skills/rohingosling/claude-skills/ascii-hierarchy-diagram.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 763 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.

Model	Per session	Once invoked
Fable 5.1	$0.00041	$0.00763
Opus 5.5	$0.00016	$0.00305
Sonnet 5.5	$0.00008	$0.00153
Haiku 4.5	$0.00004	$0.00076

Measured 2mo ago against content hash d79640845f70, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ascii-hierarchy-diagram 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 2mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/render_ascii_hierarchy_diagram.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

plugins/g-render-ascii-hierarchy-diagram/skills/ascii-hierarchy-diagram/SKILL.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Render a hierarchical ASCII tree diagram using the Python script at ${CLAUDE_SKILL_DIR}/scripts/render_ascii_hierarchy_diagram.py.

Instructions

Construct a JSON object describing the hierarchy tree. Each node has:
- "name": the node label (required)
- "comment": a trailing comment displayed after the node (optional)
- "children": an array of child nodes (optional)
Write the JSON to a temporary file in the current project's working directory (e.g. hierarchy.json).

Run with one of two modes (use python3 on macOS/Linux, python on Windows):

Include the root node in the output:

python3 "${CLAUDE_SKILL_DIR}/scripts/render_ascii_hierarchy_diagram.py" --file hierarchy.json --include-root

Skip the root node and render each top-level child as an independent tree:

python3 "${CLAUDE_SKILL_DIR}/scripts/render_ascii_hierarchy_diagram.py" --file hierarchy.json --no-include-root

Copy the output into the target markdown file inside a fenced code block.
Delete the temporary JSON file.

Modes

--include-root: Render the root node and all descendants as a single unified tree. One global comment margin is computed across the entire tree. A blank separator line (carrying the │ continuation glyph at the relevant column) is inserted after every completed sub-tree at every depth — that is, after any node that has its own children and is not the last sibling. Leaf entries and final siblings get no gap.
--no-include-root: Skip the root node. Render each top-level child as a separate independent tree. Each group computes its own comment margin. Groups are separated by a blank line, and within each group sub-trees are gapped at every depth by the same rule as --include-root.

Comment alignment

Comments are aligned to a margin computed as: length of the longest prefix + name string + 4. This margin is global in --include-root mode and per-group in --no-include-root mode.

Example JSON

Read the full file on GitHub · 95 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

scripts/render_ascii_hierarchy_diagram.py 12 KB runs code

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.

2mo ago First seen · 95 lines · 41 tokens per session scan A d79640845f70

Subscribe to this mod's changes

ascii-hierarchy-diagram is a skill published in the GitHub repository rohingosling/claude-skills (7 stars, last pushed 1mo ago), licensed MIT. It adds 41 tokens to every session and 763 once invoked, about $0.0002 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.

Claude Code Design and UX agent-skills backup backup-script claude claude-skills

ascii-hierarchy-diagram next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
ascii-hierarchy-diagramrohingosling/claude-skills	Skill	7	1mo ago	MIT	A	41	Claude Code
baoyu-diagramJimLiu/baoyu-skills	Skill	28k	7d ago	MIT	A	133	Claude Code
critiqueplugin87/ux-ui-agent-skills	Skill	3.2k	3d ago	MIT	A	37	Claude Code
customer-journey-mapmohitagw15856/pm-claude-skills	Skill	1.5k	today	MIT	A	86	Claude Code, Codex
scenario-unity-uiscenario-labs/skills	Skill	3.8k	today	MIT	A	124	Claude Code
scenario-brand-kitscenario-labs/skills	Skill	3.8k	today	MIT	A	109	Claude Code
scenario-patina-retexturescenario-labs/skills	Skill	3.8k	today	MIT	A	120	Claude Code