drin-performance-budgeting

drin-performance-budgeting is a skill for Claude Code from pedrol-cmd/brain-drin. It costs 20 tokens per session (167 once invoked), scanned A, original, MIT.

A system of limits for application speed and resource use, including maximum file size and response-time targets.

In plain words
What is it for?
It defines budgets for JavaScript size and browser or server timing, checks them in CI/CD, and profiles important user journeys.
Why use it?
It makes slowdowns visible during development and can stop changes that push the application beyond its agreed limits.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit It defines budgets for JavaScript size and browser or server timing, checks them in CI/CD, and profiles important user journeys.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pedrol-cmd/brain-drin/drin-performance-budgeting
Install

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.

Any agent
npx skills add pedrol-cmd/brain-drin --skill drin-performance-budgeting
Clone the repo
git clone --depth 1 https://github.com/pedrol-cmd/brain-drin

Made for: Claude Code.

Wrote 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.

agentmods badge for drin-performance-budgeting

README.md
[![agentmods](https://agentmods.dev/badge/skills/pedrol-cmd/brain-drin/drin-performance-budgeting/github.svg)](https://agentmods.dev/skills/pedrol-cmd/brain-drin/drin-performance-budgeting)
Your own site
<a href="https://agentmods.dev/skills/pedrol-cmd/brain-drin/drin-performance-budgeting"><img src="https://agentmods.dev/badge/skills/pedrol-cmd/brain-drin/drin-performance-budgeting/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.

agentmods 80×15 button for drin-performance-budgeting

Your own site · 80×15
<a href="https://agentmods.dev/skills/pedrol-cmd/brain-drin/drin-performance-budgeting"><img src="https://agentmods.dev/badge/skills/pedrol-cmd/brain-drin/drin-performance-budgeting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 167 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00020 $0.00167
Opus 5 $0.00010 $0.00084
Sonnet 5 $0.00004 $0.00033
Haiku 4.5 $0.00002 $0.00017

Measured 6d ago against content hash b99cb7579585, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

drin-performance-budgeting 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 6d 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.

.claude/skills/drin-performance-budgeting/SKILL.md · 25 lines

What it actually says

Performance Budgeting

Purpose

To ensure the application remains fast by making performance a non-negotiable requirement.

Budgets

  • Bundle Size: Max 200KB initial JS (compressed).
  • LCP (Largest Contentful Paint): < 2.5s.
  • TTFB (Time to First Byte): < 200ms.
  • FID (First Input Delay): < 100ms.

Enforcement

  • CI/CD hooks that fail builds if budgets are exceeded.
  • Weekly automated profiling of critical journeys.

Rules

  • Performance is a debt; if you spend, you must repay.
  • User experience over developer convenience.
Changes

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.

  1. 6d ago First seen · 25 lines · 20 tokens per session scan A b99cb7579585

Subscribe to this mod's changes

drin-performance-budgeting is a skill published in the GitHub repository pedrol-cmd/brain-drin (11 stars, last pushed 5mo ago), licensed MIT. It adds 20 tokens to every session and 167 once invoked, about $0.0001 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 2026-09-03.

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