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 gs-bbluhm/gainsight-mcp-plugins --skill mcp-app-designgit clone --depth 1 https://github.com/gs-bbluhm/gainsight-mcp-pluginsWrote 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/gs-bbluhm/gainsight-mcp-plugins/mcp-app-design)<a href="https://agentmods.dev/skills/gs-bbluhm/gainsight-mcp-plugins/mcp-app-design"><img src="https://agentmods.dev/badge/skills/gs-bbluhm/gainsight-mcp-plugins/mcp-app-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/gs-bbluhm/gainsight-mcp-plugins/mcp-app-design"><img src="https://agentmods.dev/badge/skills/gs-bbluhm/gainsight-mcp-plugins/mcp-app-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 | $0.00063 | $0.01445 |
| Opus 5 | $0.00032 | $0.00723 |
| Sonnet 5 | $0.00013 | $0.00289 |
| Haiku 4.5 | $0.00006 | $0.00145 |
Grade A, and why
mcp-app-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 10d 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 — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MCP App Design
What this skill is for
This plugin's output is the product. Whether you're surfacing a CSM's book pulse, briefing an exec on portfolio risk, or running a meeting recap, the user experience is as critical as the data behind it. This skill codifies the design system: visual primitives, rendering patterns, and per-skill chrome mappings that decide which components each skill uses.
The premise: making AI workflows intuitive for non-AI-proficient users — CSMs, account managers, leaders — depends on rendering output that feels like an app, not a markdown dump. Cowork has the interactive primitives (cards, tabs, buttons, inline choices, approval gates). This skill is how the plugin uses them consistently.
When to invoke
Foundation skill — usually not invoked directly. Sibling skills read it before producing user-facing output.
Direct invocation triggers:
- "How should
<skill>render its output?" - "What's the design system pattern for
<component>?" - "Show me the design system."
- "What tabs / components / approval pattern does
<skill>use?"
Sibling-skill reference triggers (every skill that produces user-facing Cowork output reads this):
gainsight-csm-book-pulse,gainsight-account-workspace,gainsight-meeting-processor— IC operational skillsgainsight-exec-renewal-radar,gainsight-exec-pattern-hunter,gainsight-exec-churn-retrospective,gainsight-renewal-priority-planner— Exec briefing skillsgainsight-stakeholder-connect,gainsight-no-qbr-ebr-scheduler,gainsight-account-handoff-onboarding— IC action skills
The architecture — chrome vs content
This skill hardcodes two layers. The third stays adaptive:
| Layer | What | Where it lives |
|---|---|---|
| 1. Chrome | Which tabs, which components, in what order, per skill | references/per-skill-mappings.md |
| 2. Components | Exact markup, behavior, structure of each visual primitive | references/component-library.md |
| 3. Content | The strings, data, framings, severity calls | Adaptive — generated per-run in each skill |
What ships with it
3 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.
- 10d ago First seen · 84 lines · 63 tokens per session scan A 08e7ddeec681
mcp-app-design is a skill published in the GitHub repository gs-bbluhm/gainsight-mcp-plugins (4 stars, last pushed 3mo ago), licensed MIT. It adds 63 tokens to every session and 1,445 once invoked, about $0.0003 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.
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