Spec 0239 — Orchestrator: bound `empty_turn_detected` retries — fail-fast on byte-identical retry input; hard-cap at N=2 per (agent, phase, round)

dev

0239

empty-turn-detected-retry-cap-and-identical-input-fail-fast

Orchestrator: bound `empty_turn_detected` retries — fail-fast on byte-identical retry input; hard-cap at N=2 per (agent, phase, round)

new-feature

new-feature

MINOR

TBD

deployed

[]

S

2026-05-27

2026-05-27T19:32:36Z

2026-05-27T19:46:27Z

2026-05-27T19:55:16Z

https://github.com/Lexiz/dual-research/pull/275

handoffs/2026-05-27-spec-0239-empty-turn-detected-retry-cap-and-identical-input-fail-fast.md

ship

Current orchestrator retries `empty_turn_detected` immediately with no observable cap (verified: empty_turn_events.append at deep_research.py:760 is bookkeeping only; no counter gates further retries). On any future parser-fragility regression the loop burns unbounded budget before a human notices. Identical-input retry can't succeed at fixed temperature, so the fail-fast path is also a correctness win, not just hardening. Live evidence: 20260527-142625 burned ~$0 on the retry only because the user killed the process; the design admits unbounded runaway.

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{"url": "https://github.com/Lexiz/dual-research/pull/275"}

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{"version": "1.54.0"}

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