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 instructions/mongodb-developer/nextjs-template-mongodb/agents-mdgit clone --depth 1 https://github.com/mongodb-developer/nextjs-template-mongodbWhat 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 | $0.00487 | $0.00487 |
| Opus 5 | $0.00244 | $0.00244 |
| Sonnet 5 | $0.00097 | $0.00097 |
| Haiku 4.5 | $0.00049 | $0.00049 |
Grade A, and why
nextjs-template-mongodb AGENTS.md 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.
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.
AGENTS.md
Build and Test Commands
Use these commands from the repository root:
npm install
npm run build
npm run lint
npm run test:e2e
npm run dev
npm run test:e2e runs the Playwright end-to-end suite. It requires a MongoDB instance
reachable via MONGODB_URI and the Playwright browsers installed
(npx playwright install --with-deps chromium). Playwright starts the app automatically
(next dev locally, next start in CI) via the webServer config in
playwright.config.ts.
Project Structure
app/: Next.js App Router pages, layout, and global stylesapp/page.tsx: home page server component that renders the MongoDB connection badgedb/connection-status.ts: server-side data access (MongoDBpinghealth check)lib/mongodb.ts: MongoDB client singleton (sets theappNameconnection metadata)lib/utils.ts: shared UI helpers (cnclass merger)components/ui/: shadcn/ui componentstests/e2e/: Playwright end-to-end testsREADME.md: setup and architecture guideEDD.md: MongoDB entity/document schema contract
Environment Variables and Configuration
Required:
MONGODB_URI: MongoDB connection string used by the app and the end-to-end tests
Configuration files:
.env.example: example environment values.env: local environment values (create from the example withcp .env.example .env)
MongoDB Skills
Use the official MongoDB agent skills from https://github.com/mongodb/agent-skills whenever the task is MongoDB-specific and a matching skill exists.
When To Use EDD.md
Use EDD.md as the source of truth for the MongoDB data model in this repository.
Consult EDD.md before making changes that touch:
- MongoDB collections, document structure, or field names
- Server code or route handlers that read or write database records
- Validation, form fields, API payloads, or UI that depend on persisted data
- Schema documentation, Mermaid diagrams, or entity modeling discussions
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 · 59 lines · 487 tokens per session scan A 15302b9aa9a0
nextjs-template-mongodb AGENTS.md is an instructions file published in the GitHub repository mongodb-developer/nextjs-template-mongodb (5 stars, last pushed 7d ago), licensed Apache-2.0. It adds 487 tokens to every session, about $0.0024 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 2026-08-31.
Other instructions, from other repositories
magicui AGENTS.md
Instructions for magicuidesign/magicui, covering project context, key principles, before writing code, rules and accessibility (a11y).
easy-resume CLAUDE.md
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core CLAUDE.md
Claude Code instructions for module-federation/core, covering claude task parallelization & development guidelines, core principles, maximum parallelization strategy, universal parallel task patterns and for any codebase task.
core AGENTS.md
AGENTS.md instructions for module-federation/core, covering agents.md, scope and precedence, source of truth (in priority order), environment parity and worktree mode (required in worktrees).
ui-components AGENTS.md
Instructions for starc007/ui-components, covering beui v2 — agent guide, commands, layout, component catalog and components (motion category — primitives).
coss AGENTS.md
AGENTS.md instructions for cosscom/coss, covering agents.md and main documentation.