LONG THREAD / REAL SERVER HTTP MEASUREMENT
BEFORE  93f8563a95e08279cd770beb7aa6ff9791791049
Linux x86_64, Node v26.13.1, loopback HTTP, real T3 server, fresh synthetic SQLite database, same VM
Fresh replay history: 200 turns x 11 tools x 40,000 bytes
Prompts: user/web; one inline tool every 20 turns; deferWork=1
3 warmups; 40 open + older reads; 15 x 6 concurrent opens
Five rounds, same VM, milliseconds

Round            Open        Older     Combined     6-open p95
1               54.66        44.63       101.15       204.26
2               51.84        42.84        97.30       193.98
3               52.22        39.95        92.34       200.10
4               66.50        54.26       123.44       249.73
5               51.57        42.90        95.93       199.58

Median of rounds / range across round statistics:
Open                 52.22 ms   [51.57, 66.50]
Older page           42.90 ms   [39.95, 54.26]
Open + older         97.30 ms   [92.34, 123.44]
Six opens p95       200.10 ms   [193.98, 249.73]

Returned rows: initial 140, older 280; deferred groups 0/0
Known inline items retained: 1/1 (initial/older); bodies load separately

Synthetic data only. Timings include loopback HTTP and JSON.
Not a browser/render measurement or the historical 6.3 GB DB.
