prepare stable release 2026.8.701

[t3code-release]

Stable Release

Merging this PR publishes v2026.8.701.

Previous stable: v2026.8.700

Commits Since Previous Stable

• No commits found since the latest stable release.

[github-actions]

Thread transfer impact

✅ Thread transfer remains within every enforced ceiling.

Provider	Metric	Main baseline	This PR	Impact	PR ceiling
Codex	Total thread wire	10.5 KiB	10.7 KiB	+227 B (+2.1%)	15.1 KiB	✅
Codex	Thread snapshot wire	4.8 KiB	4.8 KiB	+4 B (+0.1%)	7.3 KiB	✅
Codex	Live turn WebSocket wire	5.7 KiB	5.9 KiB	+223 B (+3.8%)	7.8 KiB	✅
Codex	Live turn WebSocket decoded	50.3 KiB	51.7 KiB	+1.5 KiB (+2.9%)	66.4 KiB	✅
Codex	Live turn messages	10	11	+1 (+10.0%)	21	✅
Claude	Total thread wire	10.5 KiB	10.7 KiB	+230 B (+2.1%)	15.1 KiB	✅
Claude	Thread snapshot wire	4.8 KiB	4.8 KiB	+3 B (+0.1%)	7.3 KiB	✅
Claude	Live turn WebSocket wire	5.7 KiB	5.9 KiB	+227 B (+3.9%)	7.8 KiB	✅
Claude	Live turn WebSocket decoded	51.1 KiB	52.6 KiB	+1.5 KiB (+2.9%)	66.4 KiB	✅
Claude	Live turn messages	9	11	+2 (+22.2%)	21	✅

Baseline: 2cdcc31 · PR result: 5674256 · Source CI: success

Scenario and decoded snapshot size

10 historical turns, 5 command tools per turn, 878.9 KiB retained MCP result per historical turn, and a 1.05 MiB retained result in the measured turn.

• Codex decoded thread snapshot: 76.2 KiB
• Claude decoded thread snapshot: 76.6 KiB

Updated in place by a trusted workflow. PR artifacts are strictly validated and never executed.