{"task_id":"st_01a00cfc","status":"completed","residency_state":"evicted","parent_session_id":"01a00387-aaf8-7f2f-89e3-e24c1af24859","root_session_id":"01a00387-aaf8-7f2f-89e3-e24c1af24859","depth":1,"execution_mode":"in-process","model":"openai-codex/gpt-5.6-sol","notify_on_terminal":true,"created_at":"2026-08-16T23:49:10.976Z","updated_at":"2026-08-18T18:50:38.489Z","notification":{"run_epoch":0,"notified_epoch":0},"name":"checkin-error-capture","task_summary":"Inspect hidden PTB handler exception","description":"Inspect hidden PTB handler exception","category":"deep","requested_model":{"provider":"openai-codex","model_id":"gpt-5.6-sol","display":"openai-codex/gpt-5.6-sol","source":"category","variant":"medium","reasoning_effort":"medium"},"fallback_models":[{"provider":"clinepass","model_id":"cline-pass/deepseek-v4-pro","display":"clinepass/cline-pass/deepseek-v4-pro","source":"category","variant":"medium","reasoning_effort":"medium"},{"provider":"clinepass","model_id":"cline-pass/glm-5.2","display":"clinepass/cline-pass/glm-5.2","source":"category","variant":"medium","reasoning_effort":"medium"}],"resolved_model":{"provider":"openai-codex","model_id":"gpt-5.6-sol","display":"GPT-5.6 Sol","source":"category","variant":"medium","reasoning_effort":"medium"},"spawn_spec":{"version":1,"cwd":"/home/cube/projects/richard/traning coach","prompt":"Goal: recover the concrete exception behind PTB update_id 629525116 without modifying production or consuming Telegram updates. Inspect application logs, journal fields, ingress receipts, systemd/core logs, PTB context/error handling, and any durable failure receipts. If needed, construct a safe unit reproduction around `_handle_ptb_error` and the exact handler using live read-only fixtures. Do not restart service, edit live state/source/tests/Git/plan/todo/ledger, or call Telegram/provider/network. Deliver the concrete exception if recoverable; otherwise prove why it is not persisted, identify the observability defect, and specify the smallest secure logging fix that records exception class+traceback without message/user content.\n\n<Category_Context name=\"deep\">\nYou are operating in DEEP mode. This is the category reserved for goal-oriented autonomous work on hairy problems that reward thorough exploration and comprehensive solutions.\n\nThe orchestrator chose this category because the task benefits from depth over speed. You should feel empowered to spend the time needed: five to fifteen minutes of silent exploration before the first edit is normal and correct. Rushing to implementation on a deep task is a failure mode, not a feature.\n\n# How deep mode adjusts the base behavior\n\n**Exploration budget: generous.** Read the files you need, trace dependencies both directions, fire 2-5 explore/librarian sub-agents in parallel for broader questions. Build a complete mental model before the first `apply_patch`. Exploration here is an investment, not overhead.\n\n**Goal, not plan.** You receive a GOAL describing the desired outcome. You figure out HOW to achieve it. The orchestrator deliberately did not hand you a step-by-step plan; producing one and asking for approval is not what was asked. Execute.\n\n**Atomic task treatment.** When the goal contains numbered steps or phases, treat them as sub-steps of ONE task and execute them all in this turn. Splitting them across turns is wrong unless they reveal an architectural blocker that requires the user's input. If the \"steps\" turn out to be genuinely independent tasks that should have been separate delegations, flag that in your final message and refuse the ones beyond scope.\n\n**Root cause bias.** Prefer root-cause fixes over symptom fixes. A null check around `foo()` is a symptom fix; fixing whatever causes `foo()` to return unexpected values is the root fix. Trace at least two levels up before settling on an answer. In deep mode, you have permission (and the expectation) to do the deeper fix.\n\n**Ambition scaled to context.** For brand-new greenfield work, be ambitious. Choose strong defaults, avoid AI-slop aesthetics, produce something you would be proud to hand to another senior engineer. For changes in an existing codebase, be surgical and respect the existing patterns; depth does not mean invasiveness.\n\n**Completion bar: full delivery.** \"Simplified version\", \"proof of concept\", and \"you can extend this later\" are not acceptable deliveries for a deep task. The orchestrator routed here specifically for a complete solution. If you hit a genuine blocker (missing secret, design decision only the user can make, three materially different attempts all failed), document it and return; otherwise, finish the task.\n\n**Status cadence: sparse.** The user is not on the other side of this conversation; the orchestrator is, and they will synthesize your progress. Send commentary only at meaningful phase transitions (starting exploration, starting implementation, starting verification, hitting a genuine blocker). Do not narrate every tool call; silence during focused work is expected.\n</Category_Context>"},"host_pid":4082105,"final_response":"I read this as a forensic investigation - I traced the failure and proved the concrete exception was not persisted.\n\n## Result\n\n**The concrete exception behind update `629525116` is not recoverable from durable state.**\n\nAt `2026-08-17 08:47:23.433 KST`, PID `343199` recorded only:\n\n```text\ntelegram_ingress stage=receipt update_id=629525116 reason_code=handler_exception\n```\n\nThe immediately preceding event identifies `_handle_text_message`’s nutrition customer route, but neither the Telegram update payload nor the raised exception survived.\n\n## Proof\n\n- `agent.log`, `gateway.log`, and `errors.log` contain only the generic reason code—no exception class or traceback.\n- Journald has exactly one event for this failure. Its `MESSAGE` field is the same generic line; there are no structured exception fields.\n- The durable receipt contains only:\n\n  ```json\n  {\n    \"reason_code\": \"handler_exception\",\n    \"stage\": \"blocked_receipt\"\n  }\n  ```\n\n- The receipt parser explicitly rejects any failure record other than that exact two-field object.\n- `_handle_ptb_error` never reads `context.error`; it only calls `gate.failed(...)` and logs `handler_exception`.\n- PTB 22.6 places the exception solely in the temporary `CallbackContext.error` passed to the registered handler. Since a custom error handler exists, PTB’s fallback traceback logger is not invoked.\n- A safe synthetic invocation using `KeyError(\"sensitive-user-content\")` confirmed `_handle_ptb_error` emits neither `KeyError` nor a traceback.\n- `state.db` and its WAL contain no update ID or `handler_exception`.\n- No update payload or separate failure receipt exists elsewhere in the profile.\n- The process remains alive, there were no kernel events or core files around the failure, and this host lacks `coredumpctl`; this was a handled Python exception, not a crash.\n\nA copied-profile reproduction could not reconstruct the exact handler execution because activation receipts are canonically bound to the live profile path. Running against the live profile would violate the read-only-state constraint.\n\n## Observability defect\n\nThe custom PTB error handler deliberately discards the only object containing the exception:\n\n```python\nasync def _handle_ptb_error(self, update, context):\n    # context.error is ignored\n    gate.failed(update, \"handler_exception\")\n```\n\nThis creates durable offset-blocking evidence while irreversibly losing the failure class and stack.\n\n## Smallest secure fix\n\nIn `_handle_ptb_error`, log:\n\n- `update_id`\n- fully qualified exception class\n- traceback frame metadata only: filename/module, function, and line number\n\nDo **not** use `logger.exception`, `exc_info`, `str(error)`, `repr(error)`, formatted `TracebackException`, locals, or the update object; those can include exception messages or user content.\n\nConceptually:\n\n```python\nerror = getattr(context, \"error\", None)\nif isinstance(error, BaseException):\n    frames = [\n        {\n            \"file\": frame.f_code.co_filename,\n            \"function\": frame.f_code.co_name,\n            \"line\": lineno,\n        }\n        for frame, lineno in traceback.walk_tb(error.__traceback__)\n    ]\n    logger.error(\n        \"telegram_handler_exception update_id=%s exception_class=%s traceback=%s\",\n        getattr(update, \"update_id\", \"unknown\"),\n        f\"{type(error).__module__}.{type(error).__qualname__}\",\n        json.dumps(frames, separators=(\",\", \":\")),\n    )\n```\n\nKeep the existing bounded durable receipt unchanged. Add a unit test asserting class/frame presence and proving a secret embedded in the exception message and update content does not appear.\n\nNo service restart, network/provider call, Telegram update consumption, or live source/state/test/Git modification was performed.","run_stats":{"runtime_ms":276449,"turns":23,"tool_calls":71,"output_tokens":12426,"total_tokens":3525527,"generation_ms":259174,"tokens_per_second":48,"cost_usd":3.1581249999999996,"cache_hit_rate_last":0.9921316736497867,"cache_hit_rate_run":0.9349233056493395}}