**Timestamp**: 2026-05-21T13:02:59Z
**Focus**: Verify operational synthesis maintenance session uses Kimi K2.6 after explicit ACPX set model
**Session**: persistent-chat-20260520T211915Z
**Prepared by**: persistent-chat operational synthesis worker
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| Source | Model Reported |
|--------|---------------|
| **System prompt exact model ID** | kimi-for-coding/k2p6 |
| **ACPX context usage report** | nano-gpt/deepseek/deepseek-v4-flash:thinking |
| **opencode.json configured model** | nano-gpt/deepseek/deepseek-v4-flash:thinking |
| **Session label** | persistent-chat-20260520T211915Z |
| **Session ID** | ses_1b8be18afffevNvUOdtg5R2TGW |
**Conclusion**: ✅ **This operational synthesis session is running Kimi K2.6** (kimi-for-coding/k2p6) as confirmed by the system prompt's explicit model ID declaration. The ACPX context usage report and opencode.json still show the *previous* model configuration (deepseek-v4-flash:thinking), indicating the backend config file was not updated to match the ACPX model override, or the override is session-level only.
The user's smoke test "Reply with exactly OK" at 12:58Z was the only user message since the 12:41Z operational synthesis — transient, no durable signal.
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• **Context**: ~150K estimated / 1M max (healthy, well below 80% warning threshold)
• **Provider logical tokens**: ~429K total, ~39K input on last turn, ~390K cached read tokens
• **Heartbeat**: ✅ Alive — model heartbeat ran successfully at 13:02Z (rc=0, curated memory updated)
• **Previous heartbeat dead period**: ~31h (May 20 05:15Z → May 21 12:36Z), now resolved
• **Timers**: 0 pending
• **Subagents**: 3 total — 1 completed (smoke test May 20), 2 failed (timeout/permission issues May 20-21)
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The curator journal at 13:00Z noted "session model identity confusion now resolved (big-pickle, not Kimi)" — but this appears to have been *premature*. The confusion persists between:
1. The **actual serving model** (Kimi K2.6 — confirmed by system prompt)
2. The **configured model in opencode.json** (DeepSeek V4 Flash)
3. The **curator's understanding** (which oscillated between identities)
**Recommendation**: Update opencode.json model configuration to match the intended Kimi K2.6 setting, or verify the ACPX session model override is persistent across reloads.
At ~10:00Z, the main agent changed smoke-agent bash wildcard from "*": "ask" to "*": "deny" and added read permissions for reports/state paths. This should prevent future subagent timeout hangs. Two subagents (f3f946d63fe4, 72f3f07fe30e) had already failed with rc=124 due to permission-approval dead ends.
The main agent identified that timestamps in turn-packet.md and memory-heartbeat.json shift the prompt prefix every turn, causing ~84% fresh tokens (only ~65K of ~416K cached). Fix requires daemon-level reordering of injected context — not yet applied.
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No new user messages requiring curation. No new semantic candidates. No open actions specific to this maintenance cycle. The only material work was the requested model verification.
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| Item | Status | Detail |
|------|--------|--------|
| Bash mkdir denied | non-fatal | Used write directly instead |
| matrix_lite_status_bot_model_admin | error | Missing script /home/matrix-lite/bin/matrix-lite-persistent-chat-model — not critical since system prompt provides exact model ID |
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*Report kept minimal per main-agent focus request.*