Preflight

Name: Preflight
Author: newrelic-experimental

by newrelic-experimentalversion 1.71.0i★ –iRuns on your computer

Registry nameio.github.newrelic-experimental/preflight

Install

Overview

Description from the maker (original English)

New Relic MCP server for observing AI coding assistants (Claude Code, Cursor, Copilot, etc.)

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other
You need to fill in: NEW_RELIC_LICENSE_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: NEW_RELIC_LICENSE_KEY, NR_AI_MODE, NEW_RELIC_ACCOUNT_ID

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "preflight": {
      "command": "npx",
      "args": [
        "-y",
        "@newrelic/preflight"
      ],
      "env": {
        "NEW_RELIC_LICENSE_KEY": "your-value",
        "NR_AI_MODE": "your-value",
        "NEW_RELIC_ACCOUNT_ID": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add preflight --env NEW_RELIC_LICENSE_KEY=your-value --env NR_AI_MODE=your-value --env NEW_RELIC_ACCOUNT_ID=your-value -- npx -y @newrelic/preflight

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "preflight": {
      "command": "npx",
      "args": [
        "-y",
        "@newrelic/preflight"
      ],
      "env": {
        "NEW_RELIC_LICENSE_KEY": "your-value",
        "NR_AI_MODE": "your-value",
        "NEW_RELIC_ACCOUNT_ID": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "preflight": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@newrelic/preflight"
      ],
      "env": {
        "NEW_RELIC_LICENSE_KEY": "your-value",
        "NR_AI_MODE": "your-value",
        "NEW_RELIC_ACCOUNT_ID": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

NEW_RELIC_LICENSE_KEY secret env
New Relic ingest license key. Optional: while NR_AI_MODE is unset or local, Preflight runs local-only with the dashboard at localhost:7777. A license key with no mode set by NR_AI_MODE or the config…
NR_AI_MODE env
Where telemetry goes: "cloud" (New Relic only), "both" (New Relic plus the local dashboard) or "local". Required when NEW_RELIC_LICENSE_KEY is set, unless the config file sets a mode. cloud turns off…
NEW_RELIC_ACCOUNT_ID env
New Relic account id. Required when NR_AI_MODE is cloud or both; also used for dashboard and alert deployment.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account newrelic-experimental, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32706 servers in this category
Published to the registry more recently than 92% of the other 32706 servers in this category
Basic checks equal to or better than 100% of the other 32706 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Preflight safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: NEW_RELIC_LICENSE_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.71.0) reached the registry 3 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Kanal Varna — drains, leaks & plumbing (Varna, BG)

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Preflight Observability for AI Coding Assistants

Docs • What's New • Examples • Community • Contributing

Why Your AI Tool Needs Observability

Your AI coding assistant makes hundreds of decisions every session — what to read, what to edit, when to run commands. But you can't see any of it. You know it was fast, but was it _efficient_? You got a PR merged, but how much did it cost? You fixed a bug, but did it get stuck in a loop first?

Preflight is observability for agentic coding — the actions, cost, and efficiency of your AI coding assistant as it works. See exactly what's happening, how much it costs, and where your AI is wasting time.

Local-first by design. Preflight runs entirely on your machine and sends your data nowhere by default. A live dashboard at localhost:7777 shows your sessions in real time, fully offline. Connect a New Relic account only when you want more — team rollups, alerting, and cross-session history. You choose: local-only, New Relic, or both.

Demo

See cost breakdown, efficiency scoring, anti-patterns, and live session tracking in action.

What You Get

Visibility

Every action captured — file reads, edits, commands, searches
Live session dashboard — see what's happening right now
Historical trends — analyze patterns over weeks and months

Cost Control

USD spend tracking — per session, day, and week
Per-model and cache breakdown — know which models cost most and how efficiently context is reused
Budget alerts — get notified before you overspend
Forecasting — project monthly burn rate

Efficiency Insights

Efficiency score — 0–100 score per task, based on how directly the AI worked
Anti-pattern detection — catches re-reads, blind edits, stuck loops
Personalized recommendations — optimize your AI workflow
Weekly coaching reports — narrative analysis vs. your historical baseline

Dashboards

Local dashboard — live session view at localhost:7777, no account required
8 pre-built New Relic dashboards — deploy in seconds _(New Relic mode)_:
Overview — session stats, cost summary, top tools
Personal — 30-day self-reflection scoped to you
Session Detail — deep-dive into a single session's tool calls
Team View — aggregated cost and efficiency across developers
Manager View — high-level team metrics, no tool-call content
Adoption & Cost — adoption momentum, spend, skill and MCP usage, and per-developer outcomes for engineering managers
Platform Comparison — Claude Code vs. Cursor vs. Windsurf, etc.
Security Audit — audit trail of sensitive file access

Quick Start

1. Install

npm install -g @newrelic/preflight

Using [Smithery](https://smithery.ai)? Installing Preflight from the Smithery MCP registry wires up the MCP server for you, but Smithery has no mechanism to write Claude Code hooks. After install, either run preflight install in a terminal, or set "allowHeadlessInstall": true in your Preflight config (or NEW_RELIC_AI_ALLOW_HEADLESS_INSTALL=true) and ask Claude Code to call the nr_observe_install_hooks MCP tool. The tool refuses by default, because any connected MCP client can call it. With the flag on, it offers to do this automatically once nr_observe_health reports setup_required: true. Then restart Claude Code to activate monitoring.

2. Run setup

preflight setup

The wizard defaults to local mode — press Enter through the prompts and you're set. It wires Preflight into your AI tool (hooks + MCP server) and writes config to ~/.newrelic-preflight/. Takes under a minute, no account required.

Using GitHub Copilot? The wizard also asks to install Copilot hooks — saying yes configures both the Copilot CLI and VS Code Copilot Chat automatically (hooks, MCP registration, and the fix for VS Code's hook double-capture), so Copilot gets the same tool-call and cost metrics Claude Code does. Run it standalone anytime with preflight install --copilot. See docs/ADAPTERS.md for details.

When prompted, pick a mode:

Mode	What it does	New Relic account?
local _(default)_	Everything stays on your machine; live dashboard at `localhost:7777`	Not needed
cloud	Ships telemetry to New Relic	Required
both	Local dashboard and New Relic	Required

3. Start coding

Restart your AI tool — hooks and the MCP server load at session start. Every tool call is captured automatically. Open http://localhost:7777 to watch your session live.

Using Kiro? Add Preflight as a Kiro Power for the

nr_observe_* query tools — see the doc for install steps and how to add

automatic tool-call capture on top.

Using Claude Code? You can skip the npm install above and add Preflight as a Claude Code plugin instead:

`

/plugin marketplace add newrelic-experimental/preflight

/plugin install newrelic-preflight@newrelic-preflight-marketplace

`

Other ways to install

Cursor — Add to Cursor installs the MCP server via a one-click deeplink; run preflight setup afterwards for hook capture.

Homebrew (macOS):

brew tap newrelic-experimental/preflight

brew trust newrelic-experimental/preflight brew install preflight

Run preflight setup afterwards for hook capture.

Works With

Claude Code • Amazon Kiro • Amazon Q Developer CLI • Factory Droid • OpenAI Codex • opencode • Kilo Code • Pi • GitHub Copilot • GitHub Copilot SDK • GitHub Copilot app • Google Gemini CLI • Cursor • Windsurf • Google Antigravity • Zed • Continue.dev • Cline

Coverage isn't uniform — some platforms capture every built-in tool call, others (Zed, Continue.dev, Cline) only see calls routed to Preflight's own MCP tools. See ADAPTERS.md for what each platform can and can't observe, and per-platform setup steps.

Connect New Relic (optional)

Local mode is fully featured on its own. Connect a New Relic account to unlock:

Team & manager dashboards across multiple developers
Alerting on cost spikes, low efficiency, and stuck loops
Cross-session history, trends, and weekly coaching reports

Re-run preflight setup and choose cloud or both, or configure it non-interactively:

preflight install \

--mode cloud \ --license-key YOUR_LICENSE_KEY \ --account-id YOUR_ACCOUNT_ID

EU accounts add --eu. FedRAMP accounts add --fedramp. Japan accounts add --jp.

A key passed with --license-key is visible to every local user through ps. For scripts, read it from a file instead (--license-key-file ~/.nr-key, which warns if other users can read the file) or set NEW_RELIC_LICENSE_KEY and NEW_RELIC_ACCOUNT_ID in the environment. The flag wins over the file, and the file wins over the environment. The environment is used only when config.json has no stored licenseKey or licenseKeyCommand, so a shell that already exports these variables for an APM agent never overwrites your stored key. To replace a stored key, pass --license-key-file. With --copilot, the key is still handed to copilot mcp add as an argument, so it is briefly visible in ps for that one call.

Then deploy the prebuilt dashboards:

NEW_RELIC_API_KEY=NRAK-... NEW_RELIC_ACCOUNT_ID=12345 \

preflight deploy-dashboards --all

You'll need a license key (telemetry ingest) and your account ID, plus a user API key (NRAK-…) to deploy dashboards and alerts. See ADVANCED.md for alerts, OTLP export to other backends, and Terraform.

No dashboard until you run `deploy-dashboards`. Cloud mode ships telemetry to New Relic as soon as it's configured, but nothing creates a dashboard automatically — that's the separate step above, and it needs a different credential (a user API key, not your license key). Until you run it, there's no UI to look at. In the meantime, query the raw events directly in New Relic's Query Builder, e.g.:

`sql

SELECT * FROM AiToolCall SINCE 1 hour ago

`

Once deploy-dashboards succeeds, find the dashboards under your New Relic account's Dashboards section.

Data ingest note: Telemetry sent to New Relic counts against your account's data ingest. On paid plans, standard ingest rates apply. Monitor your usage under NR One → Data Management → Data Ingestion.

Requirements

Required

Node.js v22 or higher (get it or use nvm)
An AI coding tool (Claude Code recommended for deepest integration)

Optional

New Relic account — only for cloud/both mode. Skip it to run local-only (the default).
User API key (NRAK-…) — only needed to deploy dashboards and alerts

Other Commands

preflight doctor               # Run 10 diagnostic checks and print actionable fix commands

preflight validate # Check config for syntax errors and unknown keys preflight update # Pull latest version, rebuild, and offer to restart a running dashboard (source installs only — npm installs: npm install -g @newrelic/preflight@latest; Homebrew installs: brew upgrade preflight) preflight local # List running --local dashboard processes and live --stdio MCP processes preflight local --clean # Kill orphaned --local processes and --stdio processes with a missing binary (prompts for confirmation) preflight uninstall # Remove hooks and MCP config (prompts with a summary first) preflight uninstall --yes # Skip the confirmation prompt (for scripts and CI) preflight uninstall --daemon # Remove only the background dashboard daemon

Add --project to install/uninstall to scope changes to the current directory only.

WSL users: preflight setup will ask which Claude Code you're running. You can also set it explicitly:

--windows-cc — Windows Claude Code (the desktop app); uses wsl.exe hooks and Windows paths
--linux-cc — Linux Claude Code installed via npm inside WSL

Documentation

ADVANCED.md — Configuration, dashboards, alerts, Terraform
SCORECARDS.md — New Relic Scorecard rules for team attribution
ARCHITECTURE.md — Data flow, component reference, and operating modes
ADAPTERS.md — Per-platform integration mechanism, setup steps, and known gaps
[**FLEET_

Only the beginning is shown; read the rest in the repo

Preflight

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Kanal Varna — drains, leaks & plumbing (Varna, BG)

README from the maker

Why Your AI Tool Needs Observability

Demo

What You Get

Visibility

Cost Control

Efficiency Insights

Dashboards

Quick Start

1. Install

2. Run setup

3. Start coding

Other ways to install

Works With

Connect New Relic (optional)

Requirements

Required

Optional

Other Commands

Documentation