[lutzkind]

Summary

Two user-reported issues, fixed on the supported OpenCode v2 lifecycle hooks.

1. Timed out waiting for response headers during PEAK. OpenCode 2.0.27 starts an attempt's response-header timeout (default 300s) at attempt start, before the http.request hook chain completes. The v0.1.2–v0.1.3 guard held interactive peak requests inside http.request, so a peak-submitted request could sit in a transport attempt until the timeout fired. Verified from the 2.0.27 sources (packages/ai/src/route/transport/http.ts wraps runtime.http.execute in the timeout; packages/core/src/session/model-request.ts triggers http.request inside it) and reproduced with the real binary against a local fixture.

The deferral now happens at the supported model.request hook, which runs while the model request is prepared and before the provider attempt exists. The same session continues the same turn at the scheduled boundary, with zero provider traffic while pricing is blocked and no header-timeout wait. The transport guard remains unchanged as the final hard barrier.

• Primary interactive holds persist a deferral while they wait and remove it on normal release → plugin reload / server restart during peak still delivers exactly one same-session continuation.
• session.execution.interrupted events are handled by reason: inactivity keeps the deferral (OpenCode's 60-minute location-activity sweep), user clears it, superseded/shutdown abort the hold.
• v0.1.3 retry-veto recovery stays for requests that cross into peak in flight. No new runtime, database, daemon, scheduler, or polling loop.

2. Chinese public holidays are full-day OFF_PEAK. The policy model gains explicit full-day OFF_PEAK exception calendars (year, dates, timeZone, source, verifiedAt, description) evaluated on the calendar's own time zone, overriding every weekly peak window. src/holidays.ts ships the official 2026 State Council calendar (国办发明电〔2025〕7号): Jan 1–3, Feb 15–23, Apr 4–6, May 1–5, Jun 19–21, Sep 25–27, Oct 1–7. Weekend make-up workdays stay OFF_PEAK; nextTransition skips holiday windows (14-day scan); unknown years keep the deterministic weekly schedule. A stored unmodified copy of the built-in policy adopts the built-in calendar so yearly updates apply without editing the config.

The rule source is the DeepSeek pricing documentation ("…excluding Chinese public holidays. All other hours are off-peak, including weekends and Chinese public holidays in full."). Upstream open report anomalyco/opencode#53071 is recorded as the annual re-check cue (Go per-request billing is not observable).

Checks

• npm run lint, npm run typecheck, npm test — 71 tests pass (new deferral, deferral-persistence, interrupt, and full 2026 holiday coverage).
• npm pack + artifact validation.
• Real OpenCode 2.0.27 + local fixture validation: peak-submitted interactive request deferred past a 5s provider header timeout with zero fixture traffic, released at the boundary in the same session (1 user / 1 assistant, no duplicates); queue task auto-started at the boundary; OFF_PEAK→PEAK retry recovery preserved; plugin reload and server restart keep exactly one continuation; v0.1.3 under the same harness still fails at 5s with the reported error.