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 brennhill/Kaboom-Browser-AI-Devtools-MCP --skill performancegit clone --depth 1 https://github.com/brennhill/Kaboom-Browser-AI-Devtools-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/brennhill/kaboom-browser-ai-devtools-mcp/performance)<a href="https://agentmods.dev/skills/brennhill/kaboom-browser-ai-devtools-mcp/performance"><img src="https://agentmods.dev/badge/skills/brennhill/kaboom-browser-ai-devtools-mcp/performance.svg" alt="Measured on agentmods" 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 | $0.00032 | $0.00210 |
| Opus 5 | $0.00016 | $0.00105 |
| Sonnet 5 | $0.00006 | $0.00042 |
| Haiku 4.5 | $0.00003 | $0.00021 |
Grade A, and why
performance 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 8d 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.
The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 8d ago First seen · 41 lines · 32 tokens per session scan A 4e3799c9ae85
performance is a skill published in the GitHub repository brennhill/Kaboom-Browser-AI-Devtools-MCP (65 stars, last pushed today), licensed AGPL-3.0. It adds 32 tokens to every session and 210 once invoked, about $0.0002 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 2026-08-30.
Other skills, from other repositories
react-dev
This skill should be used when building React components with TypeScript, typing hooks, handling events, or when React TypeScript, React 19, Server Components are mentioned. Covers type-safe patterns for React 18-19 including generic components, proper event typing, and routing integration (TanStack Router, React…
responsive-mobile-native
Use this skill whenever the user wants to make a web app or website work on mobile, adapt a desktop-first app for mobile or tablet, make a site "feel native" on phones, add responsive behaviour, fix a layout that breaks on small screens, or ship a single codebase that works on desktop and mobile without two separate…
api-client-patterns
Typed API client patterns for consuming REST APIs and tRPC. Use for typed fetch wrappers, zod response validation, API client factory, auth injection, TanStack Query (useQuery, useMutation, infinite queries, optimistic updates), tRPC end-to-end types, error handling with discriminated unions, OpenAPI client codegen…
css-architecture
CSS architecture, design token strategy, Tailwind conventions, CSS Modules, container queries, dark mode, responsive patterns, and animation architecture. Use for design token naming, CSS custom properties, Tailwind config, container queries, dark mode implementation, fluid typography, or CSS animation decisions.…
frontend-design
Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications. Generates creative, polished code that avoids generic AI aesthetics while strictly adhering to the user's technical standards.
shadcn-radix
Copy-paste components built on Radix UI primitives. Components live in your codebase in components/ui/ — you own them fully.