nightlife-mcp: Instructions file for Claude Code

CLAUDE.md

nightlife-mcp CLAUDE.md is an instructions file for Claude Code from alcylu/nightlife-mcp. It costs 5,032 tokens per session, scanned A, original, MIT.

Technical instructions for a nightlife event-discovery MCP server. MCP is a standard that lets AI assistants call tools; this server searches events, venues, and performers using a shared read-only database.

In plain words
What is it for?
Use it to find nightlife events by city, date, genre, or area; view tonight's events; inspect venues and performers; and run the service in development or production.
Why use it?
It explains how to run the server locally or over HTTP and documents the available searches and detail lookups.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is alcylu/nightlife-mcp's own configuration. It tells Claude Code how to work on nightlife-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything nightlife-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to alcylu/nightlife-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/alcylu/nightlife-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/alcylu/nightlife-mcp

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 nightlife-mcp CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/alcylu/nightlife-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/alcylu/nightlife-mcp/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/alcylu/nightlife-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/alcylu/nightlife-mcp/claude-md/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 nightlife-mcp CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/alcylu/nightlife-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/alcylu/nightlife-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 5,032 This file is loaded in full into every session.
When invoked 5,032 The same file — it is already loaded in full.
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 $0.05032 $0.05032
Opus 5 $0.02516 $0.02516
Sonnet 5 $0.01006 $0.01006
Haiku 4.5 $0.00503 $0.00503

Measured 10d ago against content hash 5c6de6933c4b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

nightlife-mcp CLAUDE.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 10d 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.md · 325 lines

How it starts

The opening of the file, as written. The whole thing — 325 lines — stays where its author put it; the contents beside it link to each section on GitHub.

nightlife-mcp — Technical Spec

Overview

Open-source MCP server for nightlife event discovery. First nightlife MCP server among 17,744+ on mcp.so.

  • Stack: TypeScript, @modelcontextprotocol/sdk, Express, Supabase (shared DB with nightlife-tokyo-next)
  • Location: ~/Apps/nlt/nightlife-mcp/
  • Supabase Project: nqwyhdfwcaedtycojslb (same as consumer site, read-only access)
  • License: MIT (open source code, private data)

Running

# Stdio (local Claude Desktop)
npm run dev

# HTTP (remote clients)
npm run dev:http     # → http://127.0.0.1:3000/mcp

# Production
npm run build && npm start:http

Tools (v0.3)

Tool Description Params
search_events Search events with filters city, date, genre, area, query, sort_by, limit, offset
get_tonight Tonight's events (service-day aware) city, genre, area, sort_by, limit, offset
get_event_details Full event detail by UUID event_id
search_venues Search venues with event-backed filters city, date, area, genre, query, limit, offset
get_venue_info Venue profile + upcoming events snapshot venue_id
search_performers Search performers active in city/date window city, date, genre, query, sort_by, limit, offset
get_performer_info Performer profile + social + upcoming events performer_id
log_unmet_request Log unresolved concierge asks for ops follow-up channel, language, city, raw_query, intent, suggested_filters, user_hash
get_recommendations Diverse recommendation slots (feature-flagged) city, date, area, genre, query, limit
list_cities List all available cities with metadata (none)
list_genres List all available genres (none)
list_areas List area/neighborhood names for a city city (optional)

Heat Index (heat on every event)

event_occurrences.heat_score is recomputed nightly by nlt-scraper/scripts/heat_score.py as a percentile blend of four demand signals: paid tickets, guest-list signups, RA interested, and Instagram engagement. Every event payload carries a heat object:

Read the full file on GitHub · 325 lines

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. 10d ago First seen · 325 lines · 5,032 tokens per session scan A 5c6de6933c4b

Subscribe to this mod's changes

nightlife-mcp CLAUDE.md is an instructions file published in the GitHub repository alcylu/nightlife-mcp (2 stars, last pushed 14d ago), licensed MIT. It adds 5,032 tokens to every session, about $0.0252 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.

Related

Other instructions, from other repositories

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,153 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

spec-kit AGENTS.md

AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.

github/spec-kit · 7,104 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,469 tokens