Add Google Flights MCP

[vibegui]

New MCP for searching flights via SerpAPI's Google Flights integration.

Features:

• Search one-way, round-trip, and multi-city flights
• Filter by airlines, stops, duration, price
• Support for flexible dates and nearby airports
• Returns detailed flight info including prices, airlines, layovers

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Summary by cubic

Add a Google Flights MCP that lets users search flights, find airport codes, and get travel date suggestions. It returns structured results and a Google Flights URL to view real prices.

• New Features

  • MCP tools: SEARCH_FLIGHTS, SEARCH_AIRPORTS, GET_TRAVEL_DATES, UPDATE_AIRPORTS_DATABASE.
  • Airports CSV ingestion (10k+), 24h cache, airport lookup and validation.
  • Google Flights URL builder plus date and passenger validation (zod schemas).

• Dependencies

  • New workspace: google-flights (@decocms/google-flights).
  • Adds @decocms/runtime, @decocms/bindings, zod, @modelcontextprotocol/sdk, deco-cli, typescript.

^{Written for commit cab13cc. Summary will update on new commits.}

[github-actions]

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_{Deployed from commit: e22c3c0}

[cubic-dev-ai]

3 issues found across 14 files

Prompt for AI agents (all issues)

Check if these issues are valid — if so, understand the root cause of each and fix them.


<file name="google-flights/server/tools/flights.ts">

<violation number="1" location="google-flights/server/tools/flights.ts:236">
P2: Formatting with `toISOString()` can shift dates by a day in non-UTC time zones. Format using local date parts so the calculated day matches the intended local travel date.</violation>
</file>

<file name="google-flights/server/main.ts">

<violation number="1" location="google-flights/server/main.ts:38">
P1: Guard the pbcopy call to macOS (and/or handle spawn errors) to avoid crashing the server on non-macOS deployments.</violation>
</file>

<file name="google-flights/server/lib/flights-client.ts">

<violation number="1" location="google-flights/server/lib/flights-client.ts:129">
P2: Date-only strings are parsed as UTC, but you're comparing against a local midnight date. This can incorrectly reject same-day departures or accept past dates depending on timezone. Parse dates in local time (or compare date-only values) to avoid the UTC/local mismatch.</violation>
</file>

_{Reply with feedback, questions, or to request a fix. Tag @cubic-dev-ai to re-run a review.}

[cubic-dev-ai]

P1: Guard the pbcopy call to macOS (and/or handle spawn errors) to avoid crashing the server on non-macOS deployments.

Prompt for AI agents

Check if this issue is valid — if so, understand the root cause and fix it. At google-flights/server/main.ts, line 38:

<comment>Guard the pbcopy call to macOS (and/or handle spawn errors) to avoid crashing the server on non-macOS deployments.</comment>

<file context>
@@ -0,0 +1,41 @@
+
+// Copy MCP URL to clipboard on macOS
+import { spawn } from "node:child_process";
+const pbcopy = spawn("pbcopy");
+pbcopy.stdin.write(mcpUrl);
+pbcopy.stdin.end();
</file context>

[cubic-dev-ai]

P2: Formatting with toISOString() can shift dates by a day in non-UTC time zones. Format using local date parts so the calculated day matches the intended local travel date.

Prompt for AI agents

Check if this issue is valid — if so, understand the root cause and fix it. At google-flights/server/tools/flights.ts, line 236:

<comment>Formatting with `toISOString()` can shift dates by a day in non-UTC time zones. Format using local date parts so the calculated day matches the intended local travel date.</comment>

<file context>
@@ -0,0 +1,276 @@
+      returnDate.setDate(departureDate.getDate() + tripLength);
+
+      const formatDate = (date: Date) => {
+        return date.toISOString().split("T")[0] ?? "";
+      };
+
</file context>

[cubic-dev-ai]

P2: Date-only strings are parsed as UTC, but you're comparing against a local midnight date. This can incorrectly reject same-day departures or accept past dates depending on timezone. Parse dates in local time (or compare date-only values) to avoid the UTC/local mismatch.

Prompt for AI agents

Check if this issue is valid — if so, understand the root cause and fix it. At google-flights/server/lib/flights-client.ts, line 129:

<comment>Date-only strings are parsed as UTC, but you're comparing against a local midnight date. This can incorrectly reject same-day departures or accept past dates depending on timezone. Parse dates in local time (or compare date-only values) to avoid the UTC/local mismatch.</comment>

<file context>
@@ -0,0 +1,155 @@
+  departureDate: string,
+  returnDate?: string,
+): { valid: boolean; error?: string } {
+  const departure = new Date(departureDate);
+  const today = new Date();
+  today.setHours(0, 0, 0, 0);
</file context>