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 redongreen/uSpec --skill create-propertygit clone --depth 1 https://github.com/redongreen/uSpecWrote 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/redongreen/uspec/create-property)<a href="https://agentmods.dev/skills/redongreen/uspec/create-property"><img src="https://agentmods.dev/badge/skills/redongreen/uspec/create-property/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/redongreen/uspec/create-property"><img src="https://agentmods.dev/badge/skills/redongreen/uspec/create-property.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 | $0.00051 | $0.28978 |
| Opus 5.5 | $0.00020 | $0.11591 |
| Sonnet 5.5 | $0.00010 | $0.05796 |
| Haiku 4.5 | $0.00005 | $0.02898 |
Grade A, and why
create-property 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 1mo 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 — 2,410 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Create Property Annotation
Generate a visual property annotation directly in Figma — one exhibit per variant axis and boolean toggle, each showing the available options as component instances with a summary table.
Execution contract (read first).
- This file is instructions to RUN, not a document to edit. Invoking the skill = render the property annotation into Figma from the input
.md. - Never edit this
SKILL.mdor any other skill file in response, even if one is open or focused in the editor. Modify a skill only when the user explicitly asks to change the skill itself. - The input component
.mdis a READ-ONLY source of truth. Never edit, append to, or "add a section" to it. The only artifact this skill produces is the Figma annotation. When the user asks to "create/add a section," "show," or "include" something, render it in the Figma annotation, never as an edit to the.md. - Never call
AskQuestion, request confirmation, or pause for input (including before Figma writes, the expected output). On ambiguity, pick the most defensible option and continue. - Only two legal stops: (a) Step 0 fail-fast when no
.mdresolves; (b) one-line abort if the Figma MCP connection is dead.
MCP Adapter
Read uspecs.config.json → mcpProvider. Follow the matching column for every MCP call in this skill.
| Operation | figma-console |
figma-mcp |
|---|---|---|
| Verify connection | figma_get_status |
Skip — implicit. If first use_figma call fails, guide user to check MCP setup. |
| Navigate to file | figma_navigate with URL |
Extract fileKey from URL (figma.com/design/:fileKey/...). No navigate needed. |
| Take screenshot | figma_take_screenshot |
get_screenshot with fileKey + nodeId |
| Execute Plugin JS | figma_execute with code |
use_figma with fileKey, code, description. Core logic is identical — see font loading note below for the one API difference (getRangeAllFontNames → tn.fontName). |
| Search components | figma_search_components |
search_design_system with query + fileKey + includeComponents: true |
| Get file/component data | figma_get_file_data / figma_get_component |
get_metadata or get_design_context with fileKey + nodeId |
| Get variables (file-wide) | figma_get_variables |
use_figma script: return await figma.variables.getLocalVariableCollectionsAsync(); |
| Get token values | figma_get_token_values |
use_figma script reading variable values per mode/collection |
| Get styles | figma_get_styles |
search_design_system with includeStyles: true, or use_figma: return figma.getLocalPaintStyles(); |
| Get selection | figma_get_selection |
use_figma script: return figma.currentPage.selection.map(n => ({id: n.id, name: n.name, type: n.type})); |
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.
- 1mo ago First seen · 2,410 lines · 51 tokens per session scan A 9992219e03d9
create-property is a skill published in the GitHub repository redongreen/uSpec (248 stars, last pushed 1mo ago), licensed MIT. It adds 51 tokens to every session and 28,978 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 2026-08-30.
Other skills, from other repositories
accessibility-per-component
Audit one design system component's accessibility against WCAG 2.2 AA: keyboard, screen reader, contrast, focus, ARIA, target size. Trigger: a11y audit, is this accessible, WCAG check, screen reader support, keyboard navigation check. Not for page- or product-wide audits.
figma-variable-audit
Audit Figma variable collections: tier mapping, naming, alias chains, modes, orphans; can fix in place with Figma Console MCP. Triggers: audit my Figma variables, review variable collections, Figma variable health. For token files in code use token-audit.
metadata-schema-generator
Generate per-component JSON metadata files (.ai/metadata/) from source: props, behaviour, composition, a11y contract, prohibited prop combinations. Triggers: component metadata schema, machine-readable component JSON, manifest for MCP/codegen. Prose for Figma: use ai-component-description.
theme-audit
Audit theme parity: tokens missing or unchanged per theme, component tokens bypassing semantics, contrast within each theme, resolver contexts, theme-switch regressions. Triggers: dark mode audit, theme coverage, brand variant parity. For general token structure use token-audit.
token-audit
Audit how design tokens are defined: tiers, naming, alias chains, raw values, orphans, DTCG readiness. Triggers: audit my tokens, token architecture review, token health check. Not for code consuming tokens (token-compliance), theme parity (theme-audit) or Figma variables (figma-variable-audit).
token-compliance
Find hardcoded colour, spacing and type values and wrong-tier token references in consuming code. Trigger: find hardcoded values, any hex in the code, are we using tokens correctly, token compliance. Do NOT use for token definitions — token-audit; token file format — schema-validator.