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 agentmods add skills/guillermoscript/lms-front/sentry-nextjs-sdknpx skills add guillermoscript/lms-front --skill sentry-nextjs-sdkgit clone --depth 1 https://github.com/guillermoscript/lms-frontWrote 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/guillermoscript/lms-front/sentry-nextjs-sdk)<a href="https://agentmods.dev/skills/guillermoscript/lms-front/sentry-nextjs-sdk"><img src="https://agentmods.dev/badge/skills/guillermoscript/lms-front/sentry-nextjs-sdk.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 | $0.00074 | $0.04605 |
| Opus 5 | $0.00037 | $0.02302 |
| Sonnet 5 | $0.00015 | $0.00921 |
| Haiku 4.5 | $0.00007 | $0.00460 |
Grade A, and why
sentry-nextjs-sdk 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 4d 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
94% identical to sentry-nextjs-sdk — 113 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 — 495 lines — stays where its author put it; the contents beside it link to each section on GitHub.
All Skills > SDK Setup > Next.js SDK
Sentry Next.js SDK
Opinionated wizard that scans your Next.js project and guides you through complete Sentry setup across all three runtimes: browser, Node.js server, and Edge.
Invoke This Skill When
- User asks to "add Sentry to Next.js" or "set up Sentry" in a Next.js app
- User wants to install or configure
@sentry/nextjs - User wants error monitoring, tracing, session replay, logging, or profiling for Next.js
- User asks about
instrumentation.ts,withSentryConfig(), orglobal-error.tsx - User wants to capture server actions, server component errors, or edge runtime errors
Note: SDK versions and APIs below reflect current Sentry docs at time of writing (
@sentry/nextjs≥8.28.0). Always verify against docs.sentry.io/platforms/javascript/guides/nextjs/ before implementing.
Phase 1: Detect
Run these commands to understand the project before making any recommendations:
# Detect Next.js version and existing Sentry
cat package.json | grep -E '"next"|"@sentry/'
# Detect router type (App Router vs Pages Router)
ls src/app app src/pages pages 2>/dev/null
# Check for existing Sentry config files
ls instrumentation.ts instrumentation-client.ts sentry.server.config.ts sentry.edge.config.ts 2>/dev/null
ls src/instrumentation.ts src/instrumentation-client.ts 2>/dev/null
# Check next.config
ls next.config.ts next.config.js next.config.mjs 2>/dev/null
# Check for existing error boundaries
find . -name "global-error.tsx" -o -name "_error.tsx" 2>/dev/null | grep -v node_modules
# Check build tool
cat package.json | grep -E '"turbopack"|"webpack"'
# Check for logging libraries
cat package.json | grep -E '"pino"|"winston"|"bunyan"'
# Check for companion backend
ls ../backend ../server ../api 2>/dev/null
cat ../go.mod ../requirements.txt ../Gemfile 2>/dev/null | head -3
What to determine:
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.
- 4d ago First seen · 495 lines · 74 tokens per session scan A ef3b5ff744d6
sentry-nextjs-sdk is a skill published in the GitHub repository guillermoscript/lms-front (25 stars, last pushed yesterday), licensed MIT. It adds 74 tokens to every session and 4,605 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to sentry-nextjs-sdk, differing in 113 lines, and is treated as a copy.
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