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reverse the fork decision: the pipeline works, my probe did not

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I concluded a few commits ago that the serve new /api/session pipeline accepts prompts and
never executes them, and kept turns on opencode run. Wrong. Every probe behind that passed
an explicit model claude-sonnet-4-6, and THAT model silently does not run on the new
surface — no error, no event, no assistant message. Drop the field and the same request
completes.

One broken variable in every experiment, read as a property of the system.

Measured on 1.18.16, both machines upgraded today: delivery steer injects into a running
turn (verified, output changed to order), delivery queue runs after it (verified, ONE then
TWO, zero errors), and model selection works via POST /model — just not with sonnet.

So the fork is reopened and worth taking, targeting the new surface rather than the legacy
message path, which generates fine but has neither steer nor queue. Blocked only on why
sonnet dies there while working under opencode run.

Third time this project has hit the same trap: opencode accepts input it does not honour
and says nothing — directory in the body, location.directory that never existed, now model.
A probe that changes one thing and sees nothing has not learned the feature is missing.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
pastilhas
2026-08-10 14:42:08 +01:00
co-authored by Claude Opus 5
parent 0c90216c7a
commit 539aeca7ec
2 changed files with 76 additions and 88 deletions
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docs/opencode-parity.md
+10 -6
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@@ -91,12 +91,16 @@ is gone. What remains is bucket 1 — capabilities Claude has and OpenCode does
visible ones (token streaming, mid-turn injection, background tasks, interrupt-without-teardown) are
downstream of `stdin: 'ignore'` and therefore of the Phase 2 fork.
**The fork is decided: turns stay on `opencode run --dir`.** Not as a preference — the serve publishes a
newer `/api/session/*` surface offering exactly those capabilities natively (`delivery: "steer" |
"queue"`, `/interrupt`, a resumable per-session event stream), and on the newest binary we run it accepts
prompts and never executes them. `docs/opencode-fork-decision.md` has the probe, what was ruled out, and
the single request that reopens the question after an upgrade. Bucket 1 below is therefore **deferred by
evidence**, not pending a decision.
**The fork is REOPENED and worth taking.** The serve publishes a newer `/api/session/*` surface offering
those capabilities natively, and on 1.18.16 **`delivery: "steer"` and `delivery: "queue"` are both
verified working** — mid-turn injection and queueing, as primitives, plus `/interrupt` and a resumable
per-session event stream. One blocker remains: `claude-sonnet-4-6` silently does not run on that surface
(it runs fine under `opencode run`). `docs/opencode-fork-decision.md` has the evidence, the open
question, and a correction — an earlier version of that file concluded the opposite because every probe
passed that one model.
Until the model question is answered, turns stay on `opencode run --dir`, which is verified working on
1.18.16.
---