Operational Synthesis Report — 2026-06-23T10:11:00Z

• status: completed
• material_digest: 8a88cfad7f18f30db96a14e8824e9b5e522579719141c58b978fb26a60908df8
• focus: scheduled full synthesis

Summary

• Scheduled synthesis recovered: This is the first successful scheduled synthesis since 2026-06-18T16:11Z. Every 22:11Z and 04:11Z run from 2026-06-18T22:11Z through 2026-06-23T04:11Z failed with OpenCode ACP prompt returned end_turn with no assistant text and zero usage, then SIGTERM. The main persistent-chat session and model heartbeat were unaffected.
• User activity unchanged since 2026-06-18T08:23:52Z: The last user message (2026-06-18T07:53:16Z) chose listing 168589262 (Unterschleißheim) and corrected the salutation format. The assistant turn at 08:23:52Z was interrupted by direct-ACP runtime while beginning to apply to #1; send status is unconfirmed.
• Heartbeat and context healthy: Model heartbeat 08:15:51Z succeeded (rc=0, acpx_rc=0, marker=UPDATED), and curated memory was updated at 08:14:25Z. Context-guard is stage=normal, ~46.6% of 1.05M tokens, no reload since 2026-05-29T20:43Z.

Evidence Reviewed

• model-conversation-log.jsonl lines 5520–5582 and perpetual-log.jsonl lines 6660–6717 (latest user/assistant turns and direct-ACP interrupt marker).
• memory-heartbeat.json, model-heartbeat.json, context-guard.json, pinned-state.md, session-packet.md, memory-context-manifest.json.
• operational-synthesis/{actions,findings,hypotheses,notices}.jsonl, latest.md, directed/index.json.
• curated-memory.md tail (salutation directive confirmed promoted), recent-topics.md, curator-journal.md head/tail, semantic-candidates.jsonl tail.

Findings

1. Synthesis failure cascade resolved (this turn) — notices.jsonl entries 14–31 document nine consecutive blocked runs with the same zero-usage end_turn + SIGTERM signature. The current 10:11Z run produced normal output.
2. Open ImmoScout action: listing 168589262 send status unknown — The assistant partial response at 2026-06-18T08:23:52Z begins "I’m applying to #1 = 168589262 now" but carries a direct-ACP interrupt warning. No later log lines confirm inbox/captcha/submit state.
3. Heartbeat/curation is healthy — model-heartbeat.json 2026-06-23T08:15:51Z: rc=0, acpx_rc=0, marker=UPDATED, curated_changed=true, reflection_changed=true. The salutation-format correction from 2026-06-18 is already present in curated-memory.md (line 204).
4. Session context stable — context-guard.json: stage=normal, metric=488814 (46.6%), session_turn_count=384, context_epoch_turn_count=98, last provider compaction 2026-06-11. No reload since 2026-05-29T20:43Z.
5. Model identity mismatch still open — continuity-summary.txt line 4 declares Current model: kimi-for-coding/k2p6, while context-guard.json configured_model_context.model is openai/gpt-5.4. The system prompt injected into this session also declares kimi-for-coding/k2p6.
6. Maintenance backlogs unchanged — decision-state.json last updated 2026-05-27; semantic-memory.json still contains prompt-fragment garbage entries; notices.jsonl had accumulated 31 entries, many obsolete.
7. Candidate backlogs remain cleared — Grep found zero "status": "candidate" or "needs_more_evidence" entries in memory-candidates.jsonl and semantic-candidates.jsonl.

Actions

| # | Action | Owner | Status |

|---|--------|-------|--------|

| 1 | Monitor next 22:11Z synthesis cycle to confirm the failure cascade is over | operational_synthesis | monitoring |

| 2 | Verify interrupted ImmoScout application to 168589262 (check inbox / captcha / send state) | main_agent | open |

| 3 | Compact notices.jsonl by removing obsolete context-guard and resolved synthesis entries | operational_synthesis | done this turn |

| 4 | Refresh decision-state.json (stale since 2026-05-27) | main_agent | open |

| 5 | Audit/clean semantic-memory.json garbage entries | main_agent / curator | open |

| 6 | Fix source of model identity mismatch (continuity-summary.txt / session-packet generator) | main_agent / infrastructure | open |

Hypotheses

• Synthesis failures are provider/runtime transient — Same signature as the 2026-06-13–06-16 cascade. Recovery without code changes supports this. Confirm by observing the next 1–2 cycles.
• The 2026-06-18T08:23:52Z direct-ACP interrupt is the same runtime class that killed synthesis runs; it left a user-facing action dangling because there is no automatic resume artifact.

Blockers / Missing Tools

• bash is denied entirely in this worker route.
• matrix_lite_status_* native tools are not exposed in the current tool set.
• Read access to /home/matrix-lite/state/turns.jsonl, /home/matrix-lite/state/observability.jsonl, /home/matrix-lite/state/approvals.json, and /home/matrix-lite/workspace/state/timers/timers.json is denied by external_directory policy (consistent with previous cycles).

Matrix-lite Operational Risks / Suggested Robustness Fixes

• Background-agent reliability: The synthesis route has now failed twice in multi-run cascades (2026-06-13–16 and 2026-06-18–23). Consider writing a checkpoint stub to the report path *before* invoking the model so a failed run still leaves an artifact instead of a stale pre-created checkpoint.
• Interrupted action tracking: The Unterschleißheim 168589262 application shows that a direct-ACP interrupt can leave an action half-started. A small pending-action artifact (e.g., pending-actions.jsonl) consumed by the main session on its next turn would reduce dropped tasks.
• Model identity drift: The mismatch between configured model (openai/gpt-5.4) and injected prompt model (kimi-for-coding/k2p6) risks wrong capability/context assumptions. Root cause likely lies in the prompt builder reading a stale character/model source; worth a targeted fix.