Bug Bash 2026-08: Street View Imagery Insights MCP Server by akshitmeghawat · Pull Request #82 · googlemaps-samples/insights-samples

akshitmeghawat · 2026-08-11T01:08:00Z

Summary of changes

Priority	Description
P1	Modified main.py to use `fastmcp` instead of core `mcp` SDK (v2.0.0), which does not contain the fastmcp module in its path.
P1	Modified requirements.txt to install `fastmcp`
P1	Modified `gcloud deploy` commands in deploy.sh
P1	Modified README.md with updated instructions: 1) use antigravitiy cli 2) resolve error with `--allow-unauthenticated` flag
P1	Modified the script main.py to use new tables instead of deprecated tables from `imagery_insights___us` dataset
P1	Added a new function `resolve_dataset` to allow clients to supply fully qualified dataset IDs
P2	Added package version requirements.txt

bijanvakili · 2026-08-11T05:20:57Z

@akshitmeghawat

For our external users, please change the README.md instructions here to just recommend Antigravity CLI as a harness. That's sufficient.
See the README.md instructions here. You'll need to add that JSON configuration using the Jetski CLI file as described here.

Since we can't use Antigravity CLI internally, you'll need to test the MCP server using your Jetski CLI

FYI: The url is currently hardcoded to @anubis05 old deployment. You'll need to update the README.md to explicitly tell the reader to use the service URL generated from their own deployment. It can be retrieved using:

gcloud run services describe streetview-imagery-insights-mcp \
  --project "${PROJECT_ID}" \
  --region "${REGION}"

FYI: I'm getting the following error already in the client (Jetski CLI):

error: calling "initialize": sending "initialize": Forbidden

...and the server side (Cloud Run) logs are showing:

The request was not authenticated. Either allow unauthenticated invocations or set the proper Authorization header. Empty Authorization header value. 
Read more at https://cloud.google.com/run/docs/securing/authenticating 

Additional troubleshooting documentation can be found at: https://cloud.google.com/run/docs/troubleshooting#unauthorized-client"

The deploy.sh deploys the service using the --allow-unauthenticated (see here). However, I suspect our organization disallows unauthenticated services.

In PR #59, I got around this using a proxy server (see instructions here. Alternatively, you can try removing the --allow-unauthenticated flag from the deploy.sh and forcing the Jetski CLI client to use Google Application Default credentials as described here.

akshitmeghawat · 2026-08-11T19:11:32Z

Modified the README.md as per your comment and also modified deploy.sh after running it with jetski cli.

bijanvakili · 2026-08-12T05:49:37Z

all_assets table is deprecated.

Please update to use the newer table.

You'll find the there are 3 other queries in this file that also need to be updated to stop using deprecated tables.

Used the new tables in the script.
These were the changes I made

In list_assets call: all_assets -> latest_assets

In get_asset_observations call: all_observations -> latest_observations

In analyze_cropped_asset call: all_observations -> cropped_observations_all

In analyze_full_frame_context call: all_observations -> full_frame_observations_all

bijanvakili

Local server is working.

However, I am not sure the "Cloud Run Deployment" instructions will actually work. See comments.

bijanvakili · 2026-08-19T01:58:48Z

-numpy
-uvicorn
-fastapi
+mcp ~= 1.29


You can remove mcp from this list.

fastmcp already includes it here (ie. it's a transitive dependency).

bijanvakili · 2026-08-19T02:10:04Z

    query = f"""
    SELECT observation_id, gcs_uri, bbox, pano_id, capture_time, camera_pose, asset_type
-    FROM `{project_id}.{dataset_id}.all_observations`
+    FROM `{project_id}.{dataset_id}.latest_observations`


This should be cropped_assets_all

Reasons:

latest_observations will be deprecated

The function description indicates that it will retrieve all historical observations

bijanvakili · 2026-08-19T02:31:17Z

+   ```
+
+### Cloud Run Deployment
 1. Navigate to the `mcp_server` directory:


nit: Remove this step cd ... as the local development did not include it.

bijanvakili · 2026-08-19T04:51:08Z

 if __name__ == "__main__":
    port = int(os.getenv("PORT", 8080))
-    uvicorn.run(app, host="0.0.0.0", port=port)
+    transport = os.getenv("MCP_TRANSPORT", "sse")


Based on the MCP specification here, the sse transport is now deprecated and we should be using streamable HTTP instead:

Streamable HTTP was introduced in protocol version 2025-03-26 as a replacement for the [HTTP+SSE transport](https://modelcontextprotocol.io/specification/2024-11-05/basic/transports#http-with-sse) from protocol version 2024-11-05.

Additionally, there is an outstanding bug with the Antigravity CLI which shows that their SSE client implementation is broken.

See other comment. I recommend switching this to the http transport.

bijanvakili · 2026-08-19T04:58:09Z

+  --source . \
  --project "${PROJECT_ID}" \
  --region "${REGION}" \
  --allow-unauthenticated \


Can you please verify that this deployment to Cloud Run will work?

(ie. deploy it and connect with Jetski CLI to successfully run a specific skill)

The service needs to run as a service account with necessary roles to query BigQuery. Take a look at the deployment script for street-view-samples/street_view_insights/cropped/samples/imagery-insights-batch-processor here which ensures the appropriate service account is set up along with forcing the service deployment to use it.

In particular, the service account will require the bigquery.jobs.create permission which is typically granted through one of the roles/bigquery.jobUser or roles/bigquery.user roles.

You'll need to determine if --allow-unauthenticated or --no-allow-unauthenticated should be used. Based on the comment in the README.md, I was only able to get Jetski CLI to connect successfully if the FastMCP transport was http and service was deployed with --no-allow-unauthenticated along with running the Cloud Run proxy in a separate window.

bijanvakili

@akshitmeghawat

Please change your base branch to main as @anubis05 just merged feat/street-view-samples branch recently.

akshitmeghawat changed the base branch from main to feat/street-view-samples August 11, 2026 01:08

akshitmeghawat self-assigned this Aug 11, 2026

akshitmeghawat requested a review from bijanvakili August 11, 2026 01:11

bijanvakili reviewed Aug 11, 2026

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Comment thread street_view_insights/mcp_server/requirements.txt Outdated

bijanvakili requested a review from anubis05 August 11, 2026 05:23

akshitmeghawat force-pushed the mcp-branch branch from 9b3c45e to bab566c Compare August 11, 2026 19:04

bijanvakili requested a review from msd2178 August 11, 2026 19:34

akshitmeghawat requested review from anubis05 and bijanvakili and removed request for anubis05 August 11, 2026 22:01

bijanvakili reviewed Aug 12, 2026

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bijanvakili mentioned this pull request Aug 12, 2026

Bug Bash 2026-08: fix issues in agentic_roof_edge_detection.ipynb #79

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Bug Bash 2026-08: Street View Imagery Insights MCP Server

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akshitmeghawat force-pushed the mcp-branch branch from bab566c to 098cccf Compare August 12, 2026 19:07

akshitmeghawat requested a review from bijanvakili August 12, 2026 19:20

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