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 OpenLAIR/OpenSkill --skill evo-nextjs-bundle-reductiongit clone --depth 1 https://github.com/OpenLAIR/OpenSkillWrote 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/openlair/openskill/evo-nextjs-bundle-reduction)<a href="https://agentmods.dev/skills/openlair/openskill/evo-nextjs-bundle-reduction"><img src="https://agentmods.dev/badge/skills/openlair/openskill/evo-nextjs-bundle-reduction/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/openlair/openskill/evo-nextjs-bundle-reduction"><img src="https://agentmods.dev/badge/skills/openlair/openskill/evo-nextjs-bundle-reduction.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 | $0.00041 | $0.00362 |
| Opus 5 | $0.00020 | $0.00181 |
| Sonnet 5 | $0.00008 | $0.00072 |
| Haiku 4.5 | $0.00004 | $0.00036 |
Grade A, and why
evo-nextjs-bundle-reduction 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 yesterday.
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.
What it actually says
evo-nextjs-bundle-reduction
Reduces client bundle size by:
- Converting barrel lodash imports to individual module imports
- Applying next/dynamic for code splitting heavy components
- Minimizing 'use client' boundary scope
- Converting client-side useEffect fetches to server-side patterns
Key Patterns
Barrel Lodash Imports → Individual Imports
Anti-pattern:
import { groupBy, sortBy, meanBy } from 'lodash';
Fix:
import groupBy from 'lodash/groupBy';
import sortBy from 'lodash/sortBy';
import meanBy from 'lodash/meanBy';
Dynamic Import for Heavy Components
Anti-pattern: Static inline component using heavy library (mathjs)
Fix: Extract to separate file and use next/dynamic:
import dynamic from 'next/dynamic';
const AdvancedAnalysis = dynamic(() => import('@/components/AdvancedAnalysis'), {
ssr: false,
loading: () => <div data-testid="advanced-content">Loading...</div>
});
Usage
import sys
sys.path.insert(0, '/app/environment/skills/evo-nextjs-bundle-reduction/scripts')
from utils import fix_barrel_lodash_imports, extract_and_dynamify_component, apply_bundle_fixes
fix_barrel_lodash_imports('/app/src/app/compare/page.tsx')
extract_and_dynamify_component('/app/src/app/compare/page.tsx', 'AdvancedAnalysis')
What ships with it
1 file 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.
- yesterday First seen · 51 lines · 41 tokens per session scan A 351c76838e9e
evo-nextjs-bundle-reduction is a skill published in the GitHub repository OpenLAIR/OpenSkill (90 stars, last pushed 2d ago), licensed Apache-2.0. It adds 41 tokens to every session and 362 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 2026-09-11.
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