Weather InfluxDB Claude Code Plugin

A Claude Code plugin that connects to the Ambient Weather station MCP server and provides pre-formatted InfluxQL query skills for each weather metric category.

Prerequisites

• Claude Code CLI
• Access to https://wagstrom2022mba.pirate-walleye.ts.net/mcp (OAuth 2.0 credentials required)

Setup

1. Load the plugin

claude --plugin-dir . --debug

On first use, the MCP server will return a 401 WWW-Authenticate challenge and Claude Code will perform the full OAuth 2.0 flow automatically via .well-known discovery — no credentials to configure in advance.

3. Verify

/help

You should see all 6 skills listed under the weather-influx namespace.

Available Skills

Skill	Trigger	Description
search-temperature	/weather-influx:search-temperature	Outdoor/indoor temps, highs/lows
search-precipitation	/weather-influx:search-precipitation	Rainfall totals by period
search-humidity	/weather-influx:search-humidity	Outdoor/indoor humidity
search-wind	/weather-influx:search-wind	Wind speed, gusts, direction
search-pressure	/weather-influx:search-pressure	Barometric pressure trends
search-summary	/weather-influx:search-summary	Full weather report

Example Usage

/weather-influx:search-temperature last 7 days
/weather-influx:search-precipitation how much did it rain this month?
/weather-influx:search-summary what was the weather like yesterday?

InfluxDB Schema

• Measurement: weather
• Tag: host=edgewater
• Fields: tempf, tempinf, humidity, humidityin, baromabsin, baromrelin, hourlyrainin, dailyrainin, eventrainin, weeklyrainin, monthlyrainin, totalrainin, windspeedmph, windgustmph, maxdailygust, winddir, solarradiation, uv, batt_co2

Team Marketplace Installation

If this repo is published to GitHub, teammates can install via:

/plugin marketplace add <your-org>/influx_weather_cowork_plugin
/plugin install weather-influx@wagstrom-weather

Pocket ID Configuration Notes

Getting Claude Code's OAuth flow to work end-to-end with Pocket ID required three non-obvious fixes. Documented here for anyone replicating this setup.

1. Serve /.well-known/oauth-authorization-server via Caddy

Claude Code discovers the authorization server via /.well-known/oauth-authorization-server, not /.well-known/openid-configuration. Pocket ID does not serve the former natively, so front it with Caddy and serve a static file at that path.

/etc/caddy/oauth-authorization-server.json:

{
  "issuer": "https://YOUR_POCKET_ID_SERVER",
  "authorization_endpoint": "https://YOUR_POCKET_ID_SERVER/authorize",
  "token_endpoint": "https://YOUR_POCKET_ID_SERVER/api/oidc/token",
  "jwks_uri": "https://YOUR_POCKET_ID_SERVER/.well-known/jwks.json",
  "response_types_supported": ["code"],
  "grant_types_supported": ["authorization_code", "refresh_token"],
  "code_challenge_methods_supported": ["S256"],
  "token_endpoint_auth_methods_supported": ["client_secret_post", "client_secret_basic"]
}

Add a route in your Caddyfile to serve this file statically at /.well-known/oauth-authorization-server on the Pocket ID domain.

2. Include scopes_supported in the MCP server's protected resource metadata

Claude Code did not send scopes in its token requests until the MCP server's /.well-known/oauth-protected-resource response explicitly listed them. The working response for this server at https://wagstrom2022mba.pirate-walleye.ts.net/mcp:

{
  "resource": "https://wagstrom2022mba.pirate-walleye.ts.net/mcp",
  "authorization_servers": ["https://YOUR_POCKET_ID_SERVER"],
  "scopes_supported": ["openid", "profile", "email", "groups"],
  "bearer_methods_supported": ["header"]
}

3. Configure the Pocket ID OIDC client correctly

In the Pocket ID admin UI for this MCP server's client application:

• Public Client: must be checked — Claude Code plugins/CoWork require public clients
• PKCE: must be enabled — provides security for public clients without a client secret
• Callback URLs: add http://localhost:*/callback — Claude Code opens a local browser redirect to complete the authorization code exchange

The clientId in .mcp.json comes from this Pocket ID client registration. No clientSecret is needed (or possible) for public clients.

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Notes

• All queries use InfluxQL (v1), not Flux.
• The MCP tool name is query_weather — accepts a single InfluxQL query string.
• OAuth is handled automatically by Claude Code via 401 WWW-Authenticate / .well-known discovery. No credentials are stored in .mcp.json — Claude Code manages token storage.
• Run with --debug on first launch to confirm OAuth handshake and tool discovery.