Borrowing it
Nothing to install: this file belongs to xiaolai/vmark. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/xiaolai/vmark/main/.claude/skills/tiptap-dev/SKILL.mdgit clone --depth 1 https://github.com/xiaolai/vmarkWrote 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/xiaolai/vmark/tiptap-dev)<a href="https://agentmods.dev/skills/xiaolai/vmark/tiptap-dev"><img src="https://agentmods.dev/badge/skills/xiaolai/vmark/tiptap-dev/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/xiaolai/vmark/tiptap-dev"><img src="https://agentmods.dev/badge/skills/xiaolai/vmark/tiptap-dev.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00068 | $0.00898 |
| Opus 5.5 | $0.00027 | $0.00359 |
| Sonnet 5.5 | $0.00014 | $0.00180 |
| Haiku 4.5 | $0.00007 | $0.00090 |
Grade A, and why
tiptap-dev 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 yesterday.
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 — 96 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Tiptap Development (VMark)
VMark's WYSIWYG editor is Tiptap on ProseMirror. This skill covers both the general Tiptap API and where VMark uses Tiptap versus raw ProseMirror.
Tiptap API or ProseMirror?
Prefer the Tiptap API for: format commands (bold, italic, underline…), block
type changes, list operations, table operations through the table extension,
content insertion and replacement, and state queries (isActive,
getAttributes). Use editor.commands.x() for one operation and
editor.chain().focus().x().run() when focus is needed or operations chain.
Use ProseMirror directly for:
- The markdown conversion layer (
src/utils/markdownPipeline/—mdastToProseMirror.tsand themdast*Converters.tsfamily) - Multi-cursor selection subclassing (
src/plugins/shared/MultiSelection.ts) - Custom node views, low-level transactions, schema-level operations
Respect block boundaries. Never flatten with doc.textContent when a
position or block matters; resolve the position and use the $pos helpers
($pos.parent, $pos.before(depth), $pos.after(depth)).
references/vmark-patterns.md has the $pos reference.
VMark examples to copy from: src/plugins/toolbarActions/wysiwygAdapter*.ts
(block, list, code-block and CJK operations), src/plugins/editorPlugins.tiptap.ts
(state checks), src/components/Editor/TiptapEditor.tsx (content setup).
Plugins must not import app stores (lint:store-coupling; rule 00).
When to Use This Skill
- Creating custom nodes, marks, or extensions for Tiptap
- Implementing input rules or paste rules
- Working with the Tiptap commands API
- Building React integrations with useEditor
- Extending existing extensions
- Creating custom node views
- Understanding the schema and content model
Reference Files
| File | Description |
|---|---|
references/extensions.md |
Extension types (Node, Mark, Extension), creation patterns |
references/commands-and-api.md |
Commands API, editor API, chaining |
references/input-paste-rules.md |
Input rules and paste rules |
references/react-integration.md |
React-specific hooks and components |
references/schema.md |
Schema properties, content patterns |
references/examples.md |
Complete working examples |
references/vmark-patterns.md |
Commands, state queries, $pos traversal and transactions, as VMark uses them |
What ships with it
7 files 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.
- yesterday Changed · +24 lines · -12 tokens per session a32ed1451781
- 2mo ago First seen · 72 lines · 80 tokens per session scan A 3705ee643873
tiptap-dev is a skill published in the GitHub repository xiaolai/vmark (878 stars, last pushed yesterday), licensed ISC. It adds 68 tokens to every session and 898 once invoked, about $0.0003 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 2026-08-30.
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