pretext
精准文本测量与布局引擎（基于开源 Pretext）。无需触碰 DOM，纯算术计算文本像素高度，支持中文、CJK、emoji 等多语言。多用于前端虚拟滚动、AI 生成 UI 布局预计算、Canvas 渲染等场景。当用户需要计算文字在指定宽度下的高度、判断换行行数、或精确布局文本时调用此 Skill。 Skill: pretext Slug: pretext-text-measurement Owner: markcookie Summary: 精准文本测量与布局引擎（基于开源 Pretext）。无需触碰 DOM，纯算术计算文本像素高度，支持中文、CJK、emoji 等多语言。多用于前端虚拟滚动、AI 生成 UI 布局预计算、Canvas 渲染等场景。当用户需要计算文字在指定宽度下的高度、判断换行行数、或精确布局文本时调用此 Skill。 Stats: downloads=89, stars=0, installs=0, versions=2 Latest Version: 1.0.1
Rank
62
Safety
84
Updated
Apr 15, 2026
Source
CLAWHUB
About
What it does, and when to use it.
Capability contract not published. No trust telemetry is available yet. Last updated 4/15/2026.
Avoid when
- Contract metadata is missing or unavailable for deterministic execution.
Risk flags: missing_or_unavailable_contract, trust_data_unavailable, schema_references_missing
Public facts
Every fact links back to the source it came from.
Install and run
Setup complexity: low.
clawhub skill install s173a6b7vatqkph605zqy4jgdh84adc0:pretext-text-measurement- Setup complexity is LOW. This package is likely designed for quick installation with minimal external side-effects.
- Final validation: Expose the agent to a mock request payload inside a sandbox and trace the network egress before allowing access to real customer data.
Contract: missing
curl -s "https://www.xpersona.co/api/v1/agents/clawhub-markcookie-pretext-text-measurement/snapshot"
Documentation
CLAWHUB
297 characters of source documentation, loaded on request.
activepieces
AI Agents & MCPs & AI Workflow Automation • (~400 MCP servers for AI agents) • AI Automation / AI Agent with MCPs • AI Workflows & AI Agents • MCPs for AI Agents
cherry-studio
AI productivity studio with smart chat, autonomous agents, and 300+ assistants.
AionUi
Free, local, open-source 24/7 Cowork app and OpenClaw for Gemini CLI, Claude Code, Codex, OpenCode, Qwen Code, Goose CLI, Auggie, and more | 🌟 Star if you like it!
CopilotKit
The Frontend for Agents & Generative UI. React + Angular
Machine-readable data
The same record, as JSON, for agents and crawlers.
{
"facts": [
{
"factKey": "vendor",
"category": "vendor",
"label": "Vendor",
"value": "Clawhub",
"href": "https://clawhub.ai/markcookie/pretext-text-measurement",
"sourceUrl": "https://clawhub.ai/markcookie/pretext-text-measurement",
"sourceType": "profile",
"confidence": "medium",
"observedAt": "2026-04-15T00:45:39.800Z",
"isPublic": true
},
{
"factKey": "protocols",
"category": "compatibility",
"label": "Protocol compatibility",
"value": "OpenClaw",
"href": "https://www.xpersona.co/api/v1/agents/clawhub-markcookie-pretext-text-measurement/contract",
"sourceUrl": "https://www.xpersona.co/api/v1/agents/clawhub-markcookie-pretext-text-measurement/contract",
"sourceType": "contract",
"confidence": "medium",
"observedAt": "2026-04-15T00:45:39.800Z",
"isPublic": true
},
{
"factKey": "handshake_status",
"category": "security",
"label": "Handshake status",
"value": "UNKNOWN",
"href": "https://www.xpersona.co/api/v1/agents/clawhub-markcookie-pretext-text-measurement/trust",
"sourceUrl": "https://www.xpersona.co/api/v1/agents/clawhub-markcookie-pretext-text-measurement/trust",
"sourceType": "trust",
"confidence": "medium",
"observedAt": null,
"isPublic": true
}
],
"events": []
}Record generated Oct 9, 2026.