Console rejects its own encrypted_content on same-session replay — 'reasoning encrypted_content was not issued to this caller' (muse-spark-1.3 free tier, turn 2) #49368

Description

Using the Console gateway with muse-spark-1.3-contributor-free (reasoning effort medium), any multi-turn conversation dies on the second turn:

OpenAI API error (400): ... [invalid_request_error] reasoning `encrypted_content` was not issued to this caller

Turn 1 succeeds and returns a reasoning item with encrypted_content. On turn 2 the same session replays that reasoning item back (required for reasoning continuity on the openai-responses protocol), and Console rejects its own token issued ~2 minutes earlier in the same session. Retrying keeps failing with the same 400.

It looks like Console binds encrypted_content to a caller that isn't stable across requests — my guess is the free tier rotates upstream credentials between calls, so the caller validating the replay is not the one that issued the token.

Cross-model switches to plain-reasoning models (deepseek/glm/kimi) work fine, which is why this took a while to isolate. I verified on the client side that history sanitization is correct: same-model reasoning signatures are kept (protocol-required replay), cross-model ones are dropped (pi-ai 0.85.1, transformMessages). I first reported this on the Pi client tracker (earendil-works/pi#9634) and was correctly pointed upstream, so filing here since Console owns the validation.

Steps to reproduce

1. Client: Pi 0.85.1 (@earendil-works/pi-ai 0.85.1), provider opencode (Console), model muse-spark-1.3-contributor-free, reasoning effort medium.
2. Send one message → succeeds; the assistant message stores an encrypted reasoning item.
3. Send a second message in the same session → 400 reasoning encrypted_content was not issued to this caller. Further turns keep failing.

Same session, same model, no model switch involved. Related: earendil-works/pi#9634, Gentleman-Programming/gentle-ai#4595.

Plugins

None (client is the Pi coding agent, not the opencode CLI)

OpenCode version

1.18.31 installed locally; the failing endpoint is the Console gateway driven by pi-ai 0.85.1

Screenshot and/or share link

No response

Operating System

Ubuntu-based Linux (x86_64)

Terminal

No response