Borrowing it
Nothing to install: this file belongs to VGrss/Acumen. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/VGrss/Acumen/main/.claude/skills/integration-nextjs-pages-router/SKILL.mdgit clone --depth 1 https://github.com/VGrss/AcumenWrote 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/vgrss/acumen/integration-nextjs-pages-router)<a href="https://agentmods.dev/skills/vgrss/acumen/integration-nextjs-pages-router"><img src="https://agentmods.dev/badge/skills/vgrss/acumen/integration-nextjs-pages-router/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/vgrss/acumen/integration-nextjs-pages-router"><img src="https://agentmods.dev/badge/skills/vgrss/acumen/integration-nextjs-pages-router.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 | $0.00016 | $0.00693 |
| Opus 5 | $0.00008 | $0.00347 |
| Sonnet 5 | $0.00003 | $0.00139 |
| Haiku 4.5 | $0.00002 | $0.00069 |
Grade A, and why
integration-nextjs-pages-router 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.
This is a copy
88% identical to integration-nextjs-app-router — 13 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.
PostHog integration for Next.js Pages Router
This skill helps you add PostHog analytics to Next.js Pages Router applications.
Workflow
Follow these steps in order to complete the integration:
basic-integration-1.0-begin.md- PostHog Setup - Begin ← Start herebasic-integration-1.1-edit.md- PostHog Setup - Editbasic-integration-1.2-revise.md- PostHog Setup - Revisebasic-integration-1.3-conclude.md- PostHog Setup - Conclusion
Reference files
references/EXAMPLE.md- Next.js Pages Router example project codereferences/next-js.md- Next.js - docsreferences/identify-users.md- Identify users - docsreferences/basic-integration-1.0-begin.md- PostHog setup - beginreferences/basic-integration-1.1-edit.md- PostHog setup - editreferences/basic-integration-1.2-revise.md- PostHog setup - revisereferences/basic-integration-1.3-conclude.md- PostHog setup - conclusion
The example project shows the target implementation pattern. Consult the documentation for API details.
Key principles
- Environment variables: Always use environment variables for PostHog keys. Never hardcode them.
- Minimal changes: Add PostHog code alongside existing integrations. Don't replace or restructure existing code.
- Match the example: Your implementation should follow the example project's patterns as closely as possible.
Framework guidelines
- For Next.js 15.3+, initialize PostHog in instrumentation-client.ts for the simplest setup
- For feature flags, use useFeatureFlagEnabled() or useFeatureFlagPayload() hooks - they handle loading states and external sync automatically
- Add analytics capture in event handlers where user actions occur, NOT in useEffect reacting to state changes
- Do NOT use useEffect for data transformation - calculate derived values during render instead
- Do NOT use useEffect to respond to user events - put that logic in the event handler itself
- Do NOT use useEffect to chain state updates - calculate all related updates together in the event handler
- Do NOT use useEffect to notify parent components - call the parent callback alongside setState in the event handler
- To reset component state when a prop changes, pass the prop as the component's key instead of using useEffect
- useEffect is ONLY for synchronizing with external systems (non-React widgets, browser APIs, network subscriptions)
What ships with it
7 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.
- 9d ago First seen · 59 lines · 16 tokens per session scan A cccfff0b800f
integration-nextjs-pages-router is a skill published in the GitHub repository VGrss/Acumen (11 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 16 tokens to every session and 693 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 88% identical to integration-nextjs-app-router, differing in 13 lines, and is treated as a copy.
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