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 tyler-technologies-oss/forge-mcp --skill forge-designgit clone --depth 1 https://github.com/tyler-technologies-oss/forge-mcpWrote 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/tyler-technologies-oss/forge-mcp/forge-design)<a href="https://agentmods.dev/skills/tyler-technologies-oss/forge-mcp/forge-design"><img src="https://agentmods.dev/badge/skills/tyler-technologies-oss/forge-mcp/forge-design/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/tyler-technologies-oss/forge-mcp/forge-design"><img src="https://agentmods.dev/badge/skills/tyler-technologies-oss/forge-mcp/forge-design.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 | $0.00122 | $0.02853 |
| Opus 5 | $0.00061 | $0.01426 |
| Sonnet 5 | $0.00024 | $0.00571 |
| Haiku 4.5 | $0.00012 | $0.00285 |
Grade A, and why
forge-design 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 9d 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 — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Tyler Forge Design System Expert
You build Forge UI with the Forge MCP server. Every generation must be grounded in tools (blocks, plans, validators) and reference files — never memory. This document routes you to the right file for each decision; do not rely on rules paraphrased here.
Top-level rules (always apply)
- URL-only chaining. You may only use component tag names, block IDs, and icon names returned by a prior tool call this turn. Do not invent names. If unsure, call
find_components,list_components,find_icons, orget_forge_blocksfirst. - Start from a block. Before writing any
<forge-*>markup, callget_forge_blocks. Extract the pattern; adapt content only. See anti-patterns.md. - Plan before writing. For any UI larger than a single component, call
generate_ui_plan, thenvalidate_ui_plan. Only write markup after the plan validates. See ui-plan.md. - Prefer
forge-scaffoldover custom CSS for layout inside cards, drawers, dialogs, and page regions. See layout.md. - Icons only from
@tylertech/tyler-iconsroot. No/standard, no/extended, no subpaths — they do not exist. See icon.md. @tylertech/forge-extendeduses side-effect imports.import '@tylertech/forge-extended/{component}';— see the package section at the bottom of this file.- No CSS classes on
<forge-*>elements. They use Shadow DOM. Wrap in a container div if you need styling. - No custom typography, shadows, or gradients unless explicitly requested. Use design tokens.
- Body styles required for app shells when using
forge-app-layout/forge-scaffoldat the app root:height:100dvh; width:100dvw; margin:0; background-color: var(--forge-theme-surface-dim, #fafafa);. - Validate before finalizing. Call
validate_component_apifor every Forge component you emit. Do not skip.
Named anti-patterns (do NOT ship these)
What ships with it
25 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.
- references/accessibility.md 791 B
- references/angular.md 255 B
- references/anti-patterns.md 7.1 KB
- references/app-bar.md 1.9 KB
- references/app-layout.md 2.2 KB
- references/button.md 745 B
- references/card.md 2.8 KB
- references/colors.md 1.0 KB
- references/dialog.md 1.9 KB
- references/forms.md 730 B
- references/icon-button.md 520 B
- references/icon.md 1.1 KB
- references/installation.md 8.1 KB
- references/layout.md 1.4 KB
- references/list.md 694 B
- references/react.md 431 B
- references/scaffold.md 917 B
- references/spacing.md 1.7 KB
- references/tables.md 1.4 KB
- references/tailwind.md 3.0 KB
- references/text-field.md 641 B
- references/timeline.md 2.1 KB
- references/toolbar.md 3.8 KB
- references/typography.md 2.3 KB
- references/ui-plan.md 5.8 KB
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.
- 9d ago First seen · 164 lines · 122 tokens per session scan A 31d4baa25e2f
forge-design is a skill published in the GitHub repository tyler-technologies-oss/forge-mcp (5 stars, last pushed 9d ago), licensed Apache-2.0. It adds 122 tokens to every session and 2,853 once invoked, about $0.0006 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 2026-09-04.
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