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.
npx skills add rohingosling/claude-skills --skill ascii-hierarchy-diagramgit clone --depth 1 https://github.com/rohingosling/claude-skillsWrote 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.
[](https://agentmods.dev/skills/rohingosling/claude-skills/ascii-hierarchy-diagram)<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.
<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>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 | $0.00020 | $0.00381 |
| Sonnet 5 | $0.00008 | $0.00153 |
| Haiku 4.5 | $0.00004 | $0.00076 |
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 12d 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.
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 ${CLAUDE_SKILL_DIR}/scripts/render_ascii_hierarchy_diagram.py.
Instructions
-
Construct a JSON object describing the hierarchy tree. Each node has:
"name": the node label (required)"comment": a trailing comment displayed after the node (optional)"children": an array of child nodes (optional)
-
Write the JSON to a temporary file in the current project's working directory (e.g.
hierarchy.json). -
Run with one of two modes (use
python3on macOS/Linux,pythonon Windows):Include the root node in the output:
python3 "${CLAUDE_SKILL_DIR}/scripts/render_ascii_hierarchy_diagram.py" --file hierarchy.json --include-rootSkip 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
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.
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.
- 12d ago First seen · 95 lines · 41 tokens per session scan A d79640845f70
ascii-hierarchy-diagram is a skill published in the GitHub repository rohingosling/claude-skills (7 stars, last pushed 2mo ago), licensed MIT. It adds 41 tokens to every session and 763 once invoked, about $0.0002 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.
Other skills, from other repositories
baoyu-diagram
Create professional, dark-themed SVG diagrams of any type — architecture diagrams, flowcharts, sequence diagrams, structural diagrams, mind maps, timelines, illustrative/conceptual diagrams, and more. Use this skill whenever the user asks for any kind of technical or conceptual diagram, visualization of a system…
accessibility
Audit and improve web accessibility following WCAG 2.2 guidelines. Use when asked to "improve accessibility", "a11y audit", "WCAG compliance", "screen reader support", "keyboard navigation", or "make accessible".
understand-figma
Analyze a Figma file via the Figma REST API and generate an interactive design knowledge graph (pages, screens, components, component sets, instances, design tokens) with a kind:"design" dashboard.
sxo
Search Experience Optimization (SXO) — the bridge between SEO and UX/CRO. Audits the full journey from the SERP click to the on-page goal: SERP click-through factors (title/meta/rich results that win the click), then post-click experience signals that keep users and drive conversions — above-the-fold relevance and…
create-workflow-diagram
Create FigJam/Miro-style workflow diagrams as high-quality PNG images from plain-text workflow descriptions. Renders beautiful HTML diagrams with connected nodes, arrows, and labels, then screenshots them for sharing.
create-chatgpt-mockup
Render pixel-accurate ChatGPT mobile (iOS) screen mockups in light mode from a thread JSON. Supports user text bubbles, user image attachments, assistant markdown prose, citation chips, the OpenAI spiral logo, the Apps-SDK GPT chip in the composer, and three header styles (model-tag, plain title, "Get Plus"). Fixed…