12	{"parentUuid":"6ceabded-a748-4d11-aa6a-7c64b34d4216","isSidechain":false,"message":{"model":"claude-opus-4-8","id":"msg_01UNEAvfe3bLBZG5NkRdwfWe","type":"message","role":"assistant","content":[{"type":"text","text":"Codex log research running. Now capturing the refined seam model."}],"stop_reason":"tool_use","stop_sequence":null,"stop_details":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":18618,"cache_read_input_tokens":238066,"output_tokens":2469,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":18618,"ephemeral_5m_input_tokens":0},"inference_geo":"not_available","iterations":[{"input_tokens":2,"output_tokens":2469,"cache_read_input_tokens":238066,"cache_creation_input_tokens":18618,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":18618},"type":"message"}],"speed":"standard"},"diagnostics":null},"requestId":"req_011CbYYefqr821EUPJEVW1vr","type":"assistant","uuid":"c5c7f175-2f01-44ed-b094-524e2a220ade","timestamp":"2026-05-30T09:51:05.632Z","userType":"external","entrypoint":"cli","cwd":"C:\\Users\\decid\\Documents\\projects\\spt-core","sessionId":"4330b8b9-2a90-4c64-8d31-ac5f54385dce","version":"2.1.156","gitBranch":"HEAD"}
13	{"parentUuid":"1e73ef33-a735-419b-9d13-9adc29d8bc7a","isSidechain":false,"message":{"model":"claude-opus-4-8","id":"msg_019t8EvwRrMjCrTgXE4Q4KLZ","type":"message","role":"assistant","content":[{"type":"text","text":"Captured all 10 seams refined. Now answering your two open questions + flagging one tension.\n\n**Your Q: \"post-spawn hook — anything else it should need?\"**\n\nProposed full post-spawn payload (binary → spt-core on boot):\n- **`session_id`** — when binary-generated (skipped if spt-core injected a UUID at spawn).\n- **`parent_pid`** — the stable session-binding anchor (KNOWN-HAZARDS 2.1; survives `/clear`, the thing orphan-detection must trust over ephemeral PIDs).\n- **endpoint identity + type confirmation** — \"I am `ling`, a LiveAgent\" — lets spt-core verify the spawned binary matches intent.\n- **local HTTP port** (optional) — if the adapter wants HTTP-mode input delivery.\n- **skeleton→live flip** — the call itself promotes the perch from skeleton (registered, pre-boot) to live.\n\nOne I'd *add* that you didn't name: **a generation/boot nonce** — so if a binary crashes and the adapter respawns it, spt-core can tell the new boot from a stale duplicate post-spawn call (guards the gen-counter hazard 2.4). Worth including?\n\n**One tension to flag — UUID-injection vs post-spawn isn't fully either/or.**\n\nYou framed spt-core's UUID generator as letting adapters *skip* post-spawn. But `parent_pid` still isn't knowable until the binary boots (spt-core launches the binary, but the *harness session* pid the binary reports may differ from the launched-process pid in some topologies — e.g. a wrapper script, or CC spawning its own subprocess). So:\n- **UUID-injection eliminates** the need to report `session_id` back.\n- It does **not** necessarily eliminate** the need to report `parent_pid`/port/identity.\n\nSo post-spawn may still be needed even with UUID-injection, just carrying less. Recommend: **post-spawn is optional only when (a) spt-core injected the UUID AND (b) the launched-process pid IS the session-binding anchor** (no wrapper indirection). Otherwise post-spawn still fires for binding. Agree, or do you want UUID-injection to fully suppress post-spawn and accept the pid-indirection limitation?\n\n**Inbound subcommand surface — should I walk it next?**\n\nThe activity/idle commands, the poll commands adapters call, the post-spawn bind call, the hook-event reports (subagent start/stop, clear/compact, crash) — these are all the *inbound* half (harness → spt-core via the subcommand surface / commands API). Want me to enumerate that surface one-by-one like we just did outbound, then cover standalone install, then assemble the PRD?"}],"stop_reason":"end_turn","stop_sequence":null,"stop_details":null,"usage":{"input_tokens":131,"cache_creation_input_tokens":2711,"cache_read_input_tokens":256684,"output_tokens":911,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":2711,"ephemeral_5m_input_tokens":0},"inference_geo":"not_available","iterations":[{"input_tokens":131,"output_tokens":911,"cache_read_input_tokens":256684,"cache_creation_input_tokens":2711,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":2711},"type":"message"}],"speed":"standard"},"diagnostics":null},"requestId":"req_011CbYYh6DrtPCRQ3jM2DHsh","type":"assistant","uuid":"ed75fc28-cc1a-4fad-9a0d-a3d349336f05","timestamp":"2026-05-30T09:51:51.608Z","userType":"external","entrypoint":"cli","cwd":"C:\\Users\\decid\\Documents\\projects\\spt-core","sessionId":"4330b8b9-2a90-4c64-8d31-ac5f54385dce","version":"2.1.156","gitBranch":"HEAD"}
14	{"parentUuid":"f3ef994e-b845-4127-9a3e-cb86b817587d","isSidechain":false,"promptId":"7ebc8c2c-e8a4-4781-af3f-d4c96c86085e","type":"user","message":{"role":"user","content":"<task-notification>\n<task-id>a0ee45790ecb3e216</task-id>\n<tool-use-id>toolu_01NKVCsw57jiQaNUe5cHkdLh</tool-use-id>\n<output-file>C:\\Users\\decid\\AppData\\Local\\Temp\\claude\\C--Users-decid-Documents-projects-spt-core\\b494f5e6-5b4d-4145-aaaa-5585e1168377\\tasks\\a0ee45790ecb3e216.output</output-file>\n<status>completed</status>\n<summary>Agent \"Research codex CLI log storage\" completed</summary>\n<result>I now have all the concrete details grounded in source. Here is my report.\n\n---\n\n# How OpenAI Codex CLI Stores Session Transcripts (vs. Claude Code)\n\nResearch grounded in the `openai/codex` Rust source (`codex-rs`), official OpenAI Codex docs, DeepWiki's code-indexed wiki, and GitHub discussions/issues. Where something is version-dependent or uncertain, I flag it.\n\n## 1. Where session history lives on disk\n\n**Path pattern (macOS/Linux):**\n```\n~/.codex/sessions/YYYY/MM/DD/rollout-<timestamp>-<conversation_id>.jsonl\n```\n- Files are called **rollout files**; the format is **JSONL** (newline-delimited JSON), one record per line.\n- Directory layout is **hierarchical by date** — the recorder pushes `sessions/`, then year, month, day onto the path (`codex-rs/rollout/src/recorder.rs`).\n- Filename format string is literally `format!(\"rollout-{date_str}-{conversation_id}.jsonl\")`, where `date_str` comes from `[year]-[month]-[day]T[hour]-[minute]-[second]`. Example:\n  `rollout-2025-05-07T17-24-21-5973b6c0-94b8-487b-a530-2aeb6098ae0e.jsonl`\n- On Windows the root is the `%USERPROFILE%\\.codex\\` equivalent (the code uses the OS home dir + `.codex`), so `…\\.codex\\sessions\\YYYY\\MM\\DD\\`.\n- Persistence can be **disabled** per run: `codex exec --ephemeral` runs \"without persisting session rollout files to disk.\" So by default everything is persisted; ephemeral is opt-out.\n\n**Important dual-store detail (recent versions):** Codex now maintains *two* layers — the JSONL rollout files **plus** a **SQLite \"state DB\"** that indexes rollout files for fast lookup/resumption (surfaced via the app-server's `thread/resume`). This is a meaningful divergence from Claude Code (see §5). It also creates a real failure mode: GitHub issue #21196 reports \"state still has threads, files gone\" — the DB can reference a rollout file that no longer exists on disk.\n\n## 2. How a session is identified and addressed\n\n- The identifier is a **`ThreadId`** (a UUID), historically/also called `conversation_id` and surfaced to users as `SESSION_ID`. The same UUID appears **both** in the filename **and** inside the file (in the `SessionMeta` record's `id` field).\n- The id is **auto-generated at session start** and **cannot be overridden** via a flag. Per the maintainer in discussion #3827: you may rename files for your own reference, but resume relies on the **id stored inside the JSONL**, not the filename.\n- **How an external tool locates a transcript for a given id:** Two viable strategies:\n  1. **Glob the tree** for `**/rollout-*-<SESSION_ID>.jsonl` under `~/.codex/sessions/` (the id is embedded in the filename, so a filename match works without opening files). This is the simplest, dependency-free approach and is what community tools (e.g. `codex-trace`, `codex-history-list`) do.\n  2. **Query the SQLite state DB** for the index (what the official app-server does), then open the referenced rollout file. More fragile for an external tool, and version-dependent.\n- A user can obtain the id from the `codex resume` picker, from `/status` inside a session, or by inspecting the files.\n\n## 3. Record / line schema\n\nEach line is a **`RolloutLine`** wrapper = `{ timestamp, item }` where `item` is a **`RolloutItem`**, a serde-tagged enum:\n\n```rust\n#[serde(tag = \"type\", content = \"payload\", rename_all = \"snake_case\")]\npub enum RolloutItem {\n    SessionMeta(SessionMetaLine),  // \"session_meta\"\n    ResponseItem(ResponseItem),    // \"response_item\"\n    Compacted(CompactedItem),      // \"compacted\"\n    TurnContext(TurnContextItem),  // \"turn_context\"\n    EventMsg(EventMsg),            // \"event_msg\"\n}\n```\n\nSo every line looks like: `{\"timestamp\":\"…\",\"type\":\"<variant>\",\"payload\":{…}}`.\n\n**First line — `session_meta`** (`SessionMeta`/`SessionMetaLine`), carries session-level context used for resume:\n`id` (ThreadId), `forked_from_id`, `timestamp`, `cwd`, `originator`, `cli_version`, `source`, `model_provider`, `base_instructions`, `agent_nickname`/`agent_role`, `dynamic_tools`, `memory_mode`, and a flattened optional `git` (`GitInfo`).\n\n**Conversation content — `response_item`** (`ResponseItem`), serde `tag=\"type\"`, snake_case variants. Key ones:\n- `message` → `{ role: String, content: Vec<ContentItem>, phase }`. `ContentItem` is itself tagged: `input_text {text}`, `input_image {image_url, detail}`, `output_text {text}`. **Note: roles and content are nested inside a `content` array of typed parts** — input vs. output text are *different* variants, not a single `text` field.\n- Tool calls/results: `function_call` (with arguments), `function_call_output` (tool result payload), `local_shell_call`, `custom_tool_call` / `custom_tool_call_output`, `web_search_call`, `image_generation_call`.\n- `reasoning` (summary + optional content), `compaction`/`context_compaction`.\n\n**Lifecycle/telemetry — `event_msg`** (`EventMsg`): `UserMessage`, `AgentMessage`, `TokenCount`, `TurnComplete`, plus (in extended mode) `ExecCommandEnd`, `Error`, `McpToolCallEnd`, etc.\n\n**Persistence policy matters for parsers:** there are two modes. **Limited (default)** persists only essential markers (`UserMessage`, `AgentMessage`, `TokenCount`, `TurnComplete`); **Extended** adds diagnostic events. So the *same* logical message can appear as a structured `response_item` and/or as an `event_msg` depending on mode — a normalizer must decide which to treat as canonical to avoid duplicates.\n\n## 4. Resuming a prior session\n\nYes. `codex resume`:\n- `codex resume` → interactive picker of recent sessions (shows a summary; Enter reopens).\n- `codex resume --last` → skip picker, continue the most recent session **in the current working directory**.\n- `codex resume --last --all` → most recent session across **any** directory (resume is cwd-scoped by default).\n- `codex resume <SESSION_ID>` → resume a specific session by UUID.\n\nOn resume, Codex loads the JSONL rollout (via the state DB index / `ThreadHistoryBuilder`), reconstructs messages + tool calls + context, and — importantly — **appends new turns to the existing rollout file** rather than creating a new one. The app-server's `thread/resume` **requires a materialized rollout file**; if it's missing, it errors (the #21196 data-loss case).\n\n## 5. What differs from Claude Code's model — and complicates a generic parser\n\nClaude Code: `~/.claude/projects/<project-hash>/<session-id>.jsonl`, one flat JSONL keyed directly by session id, project-partitioned by an encoded cwd. Codex differs in ways that matter for a \"given a session id → normalized messages\" seam:\n\n1. **Locating the file is harder.** Codex partitions by **date** (`YYYY/MM/DD`), not by project/cwd, and the id is a *substring* of the filename, not the whole name. You can't construct the path from the id alone — you must **glob** the date tree (or query the SQLite DB). You also don't know the date, so the glob must be recursive. Claude Code lets you derive/guess the path far more directly.\n\n2. **Two sources of truth.** Codex has a **SQLite state DB index alongside the JSONL files**, and they can desync (DB references a deleted rollout file — issue #21196). A robust seam should treat the JSONL as canonical and not depend on the DB, but be aware resume itself depends on the DB.\n\n3. **Nested, doubly-tagged envelope.** Every record is `{timestamp, type, payload}` and the message payload is *itself* a tagged `ResponseItem` whose content is an array of tagged `ContentItem`s (`input_text` vs `output_text`). That's effectively **three levels** of `\"type\"` discrimination versus Claude Code's flatter per-line `{type, role, message…}`. Tool calls/results are separate top-level item types (`function_call`, `function_call_output`, `local_shell_call`, …), not embedded in a single assistant message.\n\n4. **Mixed event vocabularies in one file.** `response_item` (model-API-shaped items) and `event_msg` (Codex lifecycle/telemetry) coexist, and the **persistence mode (Limited vs Extended)** changes which appear. A normalizer must dedupe overlapping representations and tolerate missing diagnostic events.\n\n5. **Append-on-resume with forking.** Resumed sessions append to the original file (single id, growing transcript), but Codex also supports **forking** (`forked_from_id` in `SessionMeta`) — so reconstructing a full lineage may require following fork pointers across multiple files. Claude Code's model is closer to one-file-per-session.\n\n6. **Filename ≠ identity.** Renaming a Codex rollout file does not change the session it resumes to; identity lives in `SessionMeta.id`. A parser keyed purely on filename can be fooled — read the first `session_meta` line to confirm the id.\n\n7. **Ephemeral sessions may not exist on disk at all** (`codex exec --ephemeral`), and `codex exec` JSON streaming uses a *different* event vocabulary (`thread.started`, `turn.completed`, `item.*`) than the persisted rollout schema — don't conflate the live `--json` stream format with the on-disk rollout format.\n\n**Net design implication for your seam:** for Codex, \"given a session id → file\" should be a recursive glob over `~/.codex/sessions/**/rollout-*-<id>.jsonl` (with a SQLite-DB fast path as optional), and the normalizer must flatten a 3-level tagged envelope, reconcile `response_item` vs `event_msg`, handle Limited/Extended mode gaps, and optionally follow `forked_from_id`. That's a notably richer adapter than the Claude Code path.\n\n## Sources\n- DeepWiki (code-indexed): [Rollout Persistence and Replay](https://deepwiki.com/openai/codex/3.5.2-rollout-persistence-and-replay), [Session Resumption](https://deepwiki.com/openai/codex/4.4-session-resumption)\n- Source: [`codex-rs/protocol/src/protocol.rs`](https://github.com/openai/codex/blob/main/codex-rs/protocol/src/protocol.rs), [`codex-rs/protocol/src/models.rs`](https://github.com/openai/codex/blob/main/codex-rs/protocol/src/models.rs), [`codex-rs/rollout/src/recorder.rs`](https://github.com/openai/codex/blob/main/codex-rs/rollout/src/recorder.rs)\n- Official docs: [Codex CLI command reference](https://developers.openai.com/codex/cli/reference), [Non-interactive mode (`--json`)](https://developers.openai.com/codex/noninteractive)\n- GitHub: [Discussion #3827 (session/rollout files)](https://github.com/openai/codex/discussions/3827), [Discussion #1076 (resuming sessions)](https://github.com/openai/codex/discussions/1076), [Issue #21196 (DB vs missing rollout files)](https://github.com/openai/codex/issues/21196), [Issue #2288 (trajectory JSON for exec)](https://github.com/openai/codex/issues/2288)\n- Community tools confirming the path/format: [PixelPaw-Labs/codex-trace](https://github.com/PixelPaw-Labs/codex-trace), [InventiveHQ: ~/.codex config locations](https://inventivehq.com/knowledge-base/openai/where-configuration-files-are-stored), [InventiveHQ: resume sessions](https://inventivehq.com/knowledge-base/openai/how-to-resume-sessions)\n\n**Confidence notes:** Path pattern, filename format, JSONL `{timestamp,type,payload}` envelope, `SessionMeta`/`ResponseItem`/`ContentItem` field names, and the `codex resume` flags are directly grounded in current `main` source and official docs — high confidence. The **SQLite state-DB index** is a more recent addition tied to the app-server; its exact location/schema I did not pin down to a file path, so treat that layer as version-dependent and verify against the installed Codex version before depending on it.</result>\n<usage><subagent_tokens>35253</subagent_tokens><tool_uses>11</tool_uses><duration_ms>130148</duration_ms></usage>\n</task-notification>"},"uuid":"be305173-435b-4d4e-a847-513157ee3b4c","timestamp":"2026-05-30T09:53:12.172Z","permissionMode":"bypassPermissions","origin":{"kind":"task-notification"},"userType":"external","entrypoint":"cli","cwd":"C:\\Users\\decid\\Documents\\projects\\spt-core","sessionId":"4330b8b9-2a90-4c64-8d31-ac5f54385dce","version":"2.1.156","gitBranch":"HEAD"}
15	{"parentUuid":"fb7c9fbe-8269-48d5-9f47-1417ef8421b2","isSidechain":false,"message":{"model":"claude-opus-4-8","id":"msg_013KUJitAtRS9Eo4D2FhnX1T","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signature":"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"}],"stop_reason":"tool_use","stop_sequence":null,"stop_details":null,"usage":{"input_tokens":159,"cache_creation_input_tokens":27113,"cache_read_input_tokens":238066,"output_tokens":1280,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":27113,"ephemeral_5m_input_tokens":0},"inference_geo":"not_available","iterations":[{"input_tokens":159,"output_tokens":1280,"cache_read_input_tokens":238066,"cache_creation_input_tokens":27113,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":27113},"type":"message"}],"speed":"standard"},"diagnostics":{"cache_miss_reason":{"type":"messages_changed","cache_missed_input_tokens":209613}}},"requestId":"req_011CbYYpFVuxM5G1mUpwhx9u","type":"assistant","uuid":"7a423c4e-76fb-4fd6-9a5a-779569707cbd","timestamp":"2026-05-30T09:53:23.292Z","userType":"external","entrypoint":"cli","cwd":"C:\\Users\\decid\\Documents\\projects\\spt-core","sessionId":"4330b8b9-2a90-4c64-8d31-ac5f54385dce","version":"2.1.156","gitBranch":"HEAD"}
16	{"parentUuid":"7a423c4e-76fb-4fd6-9a5a-779569707cbd","isSidechain":false,"message":{"model":"claude-opus-4-8","id":"msg_013KUJitAtRS9Eo4D2FhnX1T","type":"message","role":"assistant","content":[{"type":"text","text":"Codex research back — strongly validates the dual-path history design. Folding the rationale in."}],"stop_reason":"tool_use","stop_sequence":null,"stop_details":null,"usage":{"input_tokens":159,"cache_creation_input_tokens":27113,"cache_read_input_tokens":238066,"output_tokens":1280,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":27113,"ephemeral_5m_input_tokens":0},"inference_geo":"not_available","iterations":[{"input_tokens":159,"output_tokens":1280,"cache_read_input_tokens":238066,"cache_creation_input_tokens":27113,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":27113},"type":"message"}],"speed":"standard"},"diagnostics":{"cache_miss_reason":{"type":"messages_changed","cache_missed_input_tokens":209613}}},"requestId":"req_011CbYYpFVuxM5G1mUpwhx9u","type":"assistant","uuid":"b783eb6f-bd22-432f-96b9-5c70da992212","timestamp":"2026-05-30T09:53:23.777Z","userType":"external","entrypoint":"cli","cwd":"C:\\Users\\decid\\Documents\\projects\\spt-core","sessionId":"4330b8b9-2a90-4c64-8d31-ac5f54385dce","version":"2.1.156","gitBranch":"HEAD"}
17	{"parentUuid":"0fed92e1-0c37-4b3f-be9a-24e0bc1092e9","isSidechain":false,"message":{"model":"claude-opus-4-8","id":"msg_01VUkoETQYAijCSEQKVnPztV","type":"message","role":"assistant","content":[{"type":"text","text":"Done. Codex findings, condensed: its transcript model is *much* harder than Claude Code's — date-partitioned, glob-to-locate (id is only a filename substring), 3-level tagged envelope, a SQLite index that can desync from the files, Limited/Extended modes, and session forking. That decisively confirms **adapter-owned normalize-command** (a built-in per-harness parser would be unbounded version-fragile maintenance), with **Path B native store** as the escape hatch. Folded into CONTEXT as the seam's rationale.\n\nStill awaiting your call on the three open items from before the research landed:\n\n1. **post-spawn boot nonce** — add a generation/boot nonce to the post-spawn payload so a respawn-after-crash can't be confused with a stale duplicate bind (guards hazard 2.4)? Recommend yes.\n2. **UUID-injection vs post-spawn** — does UUID-injection *fully* suppress post-spawn (accepting that `parent_pid`/port/identity then can't be reported, and pid-indirection topologies lose proper session binding), or is post-spawn still fired for binding even when the UUID was injected (my recommendation)?\n3. **Walk the inbound subcommand surface next?** — enumerate the commands-API adapters call (activity/idle, poll, post-spawn bind, hook-event reports: subagent start/stop, clear/compact, crash) one-by-one like we did outbound, then standalone install, then assemble the PRD."}],"stop_reason":"end_turn","stop_sequence":null,"stop_details":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":1498,"cache_read_input_tokens":265179,"output_tokens":493,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":1498,"ephemeral_5m_input_tokens":0},"inference_geo":"not_available","iterations":[{"input_tokens":2,"output_tokens":493,"cache_read_input_tokens":265179,"cache_creation_input_tokens":1498,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1498},"type":"message"}],"speed":"standard"},"diagnostics":null},"requestId":"req_011CbYYqdxJfQpcSMNoDttNu","type":"assistant","uuid":"51566465-7e07-4f5a-b3ef-5d1e18dad071","timestamp":"2026-05-30T09:53:39.513Z","userType":"external","entrypoint":"cli","cwd":"C:\\Users\\decid\\Documents\\projects\\spt-core","sessionId":"4330b8b9-2a90-4c64-8d31-ac5f54385dce","version":"2.1.156","gitBranch":"HEAD"}
18

{"parentUuid":"6ceabded-a748-4d11-aa6a-7c64b34d4216","isSidechain":false,"message":{"model":"claude-opus-4-8","id":"msg_01UNEAvfe3bLBZG5NkRdwfWe","type":"message","role":"assistant","content":[{"type":"text","text":"Codex log research running. Now capturing the refined seam model."}],"stop_reason":"tool_use","stop_sequence":null,"stop_details":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":18618,"cache_read_input_tokens":238066,"output_tokens":2469,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":18618,"ephemeral_5m_input_tokens":0},"inference_geo":"not_available","iterations":[{"input_tokens":2,"output_tokens":2469,"cache_read_input_tokens":238066,"cache_creation_input_tokens":18618,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":18618},"type":"message"}],"speed":"standard"},"diagnostics":null},"requestId":"req_011CbYYefqr821EUPJEVW1vr","type":"assistant","uuid":"c5c7f175-2f01-44ed-b094-524e2a220ade","timestamp":"2026-05-30T09:51:05.632Z","userType":"external","entrypoint":"cli","cwd":"C:\\Users\\decid\\Documents\\projects\\spt-core","sessionId":"4330b8b9-2a90-4c64-8d31-ac5f54385dce","version":"2.1.156","gitBranch":"HEAD"}
{"parentUuid":"1e73ef33-a735-419b-9d13-9adc29d8bc7a","isSidechain":false,"message":{"model":"claude-opus-4-8","id":"msg_019t8EvwRrMjCrTgXE4Q4KLZ","type":"message","role":"assistant","content":[{"type":"text","text":"Captured all 10 seams refined. Now answering your two open questions + flagging one tension.\n\n**Your Q: \"post-spawn hook — anything else it should need?\"**\n\nProposed full post-spawn payload (binary → spt-core on boot):\n- **`session_id`** — when binary-generated (skipped if spt-core injected a UUID at spawn).\n- **`parent_pid`** — the stable session-binding anchor (KNOWN-HAZARDS 2.1; survives `/clear`, the thing orphan-detection must trust over ephemeral PIDs).\n- **endpoint identity + type confirmation** — \"I am `ling`, a LiveAgent\" — lets spt-core verify the spawned binary matches intent.\n- **local HTTP port** (optional) — if the adapter wants HTTP-mode input delivery.\n- **skeleton→live flip** — the call itself promotes the perch from skeleton (registered, pre-boot) to live.\n\nOne I'd *add* that you didn't name: **a generation/boot nonce** — so if a binary crashes and the adapter respawns it, spt-core can tell the new boot from a stale duplicate post-spawn call (guards the gen-counter hazard 2.4). Worth including?\n\n**One tension to flag — UUID-injection vs post-spawn isn't fully either/or.**\n\nYou framed spt-core's UUID generator as letting adapters *skip* post-spawn. But `parent_pid` still isn't knowable until the binary boots (spt-core launches the binary, but the *harness session* pid the binary reports may differ from the launched-process pid in some topologies — e.g. a wrapper script, or CC spawning its own subprocess). So:\n- **UUID-injection eliminates** the need to report `session_id` back.\n- It does **not** necessarily eliminate** the need to report `parent_pid`/port/identity.\n\nSo post-spawn may still be needed even with UUID-injection, just carrying less. Recommend: **post-spawn is optional only when (a) spt-core injected the UUID AND (b) the launched-process pid IS the session-binding anchor** (no wrapper indirection). Otherwise post-spawn still fires for binding. Agree, or do you want UUID-injection to fully suppress post-spawn and accept the pid-indirection limitation?\n\n**Inbound subcommand surface — should I walk it next?**\n\nThe activity/idle commands, the poll commands adapters call, the post-spawn bind call, the hook-event reports (subagent start/stop, clear/compact, crash) — these are all the *inbound* half (harness → spt-core via the subcommand surface / commands API). Want me to enumerate that surface one-by-one like we just did outbound, then cover standalone install, then assemble the PRD?"}],"stop_reason":"end_turn","stop_sequence":null,"stop_details":null,"usage":{"input_tokens":131,"cache_creation_input_tokens":2711,"cache_read_input_tokens":256684,"output_tokens":911,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":2711,"ephemeral_5m_input_tokens":0},"inference_geo":"not_available","iterations":[{"input_tokens":131,"output_tokens":911,"cache_read_input_tokens":256684,"cache_creation_input_tokens":2711,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":2711},"type":"message"}],"speed":"standard"},"diagnostics":null},"requestId":"req_011CbYYh6DrtPCRQ3jM2DHsh","type":"assistant","uuid":"ed75fc28-cc1a-4fad-9a0d-a3d349336f05","timestamp":"2026-05-30T09:51:51.608Z","userType":"external","entrypoint":"cli","cwd":"C:\\Users\\decid\\Documents\\projects\\spt-core","sessionId":"4330b8b9-2a90-4c64-8d31-ac5f54385dce","version":"2.1.156","gitBranch":"HEAD"}
{"parentUuid":"f3ef994e-b845-4127-9a3e-cb86b817587d","isSidechain":false,"promptId":"7ebc8c2c-e8a4-4781-af3f-d4c96c86085e","type":"user","message":{"role":"user","content":"<task-notification>\n<task-id>a0ee45790ecb3e216</task-id>\n<tool-use-id>toolu_01NKVCsw57jiQaNUe5cHkdLh</tool-use-id>\n<output-file>C:\\Users\\decid\\AppData\\Local\\Temp\\claude\\C--Users-decid-Documents-projects-spt-core\\b494f5e6-5b4d-4145-aaaa-5585e1168377\\tasks\\a0ee45790ecb3e216.output</output-file>\n<status>completed</status>\n<summary>Agent \"Research codex CLI log storage\" completed</summary>\n<result>I now have all the concrete details grounded in source. Here is my report.\n\n---\n\n# How OpenAI Codex CLI Stores Session Transcripts (vs. Claude Code)\n\nResearch grounded in the `openai/codex` Rust source (`codex-rs`), official OpenAI Codex docs, DeepWiki's code-indexed wiki, and GitHub discussions/issues. Where something is version-dependent or uncertain, I flag it.\n\n## 1. Where session history lives on disk\n\n**Path pattern (macOS/Linux):**\n```\n~/.codex/sessions/YYYY/MM/DD/rollout-<timestamp>-<conversation_id>.jsonl\n```\n- Files are called **rollout files**; the format is **JSONL** (newline-delimited JSON), one record per line.\n- Directory layout is **hierarchical by date** — the recorder pushes `sessions/`, then year, month, day onto the path (`codex-rs/rollout/src/recorder.rs`).\n- Filename format string is literally `format!(\"rollout-{date_str}-{conversation_id}.jsonl\")`, where `date_str` comes from `[year]-[month]-[day]T[hour]-[minute]-[second]`. Example:\n  `rollout-2025-05-07T17-24-21-5973b6c0-94b8-487b-a530-2aeb6098ae0e.jsonl`\n- On Windows the root is the `%USERPROFILE%\\.codex\\` equivalent (the code uses the OS home dir + `.codex`), so `…\\.codex\\sessions\\YYYY\\MM\\DD\\`.\n- Persistence can be **disabled** per run: `codex exec --ephemeral` runs \"without persisting session rollout files to disk.\" So by default everything is persisted; ephemeral is opt-out.\n\n**Important dual-store detail (recent versions):** Codex now maintains *two* layers — the JSONL rollout files **plus** a **SQLite \"state DB\"** that indexes rollout files for fast lookup/resumption (surfaced via the app-server's `thread/resume`). This is a meaningful divergence from Claude Code (see §5). It also creates a real failure mode: GitHub issue #21196 reports \"state still has threads, files gone\" — the DB can reference a rollout file that no longer exists on disk.\n\n## 2. How a session is identified and addressed\n\n- The identifier is a **`ThreadId`** (a UUID), historically/also called `conversation_id` and surfaced to users as `SESSION_ID`. The same UUID appears **both** in the filename **and** inside the file (in the `SessionMeta` record's `id` field).\n- The id is **auto-generated at session start** and **cannot be overridden** via a flag. Per the maintainer in discussion #3827: you may rename files for your own reference, but resume relies on the **id stored inside the JSONL**, not the filename.\n- **How an external tool locates a transcript for a given id:** Two viable strategies:\n  1. **Glob the tree** for `**/rollout-*-<SESSION_ID>.jsonl` under `~/.codex/sessions/` (the id is embedded in the filename, so a filename match works without opening files). This is the simplest, dependency-free approach and is what community tools (e.g. `codex-trace`, `codex-history-list`) do.\n  2. **Query the SQLite state DB** for the index (what the official app-server does), then open the referenced rollout file. More fragile for an external tool, and version-dependent.\n- A user can obtain the id from the `codex resume` picker, from `/status` inside a session, or by inspecting the files.\n\n## 3. Record / line schema\n\nEach line is a **`RolloutLine`** wrapper = `{ timestamp, item }` where `item` is a **`RolloutItem`**, a serde-tagged enum:\n\n```rust\n#[serde(tag = \"type\", content = \"payload\", rename_all = \"snake_case\")]\npub enum RolloutItem {\n    SessionMeta(SessionMetaLine),  // \"session_meta\"\n    ResponseItem(ResponseItem),    // \"response_item\"\n    Compacted(CompactedItem),      // \"compacted\"\n    TurnContext(TurnContextItem),  // \"turn_context\"\n    EventMsg(EventMsg),            // \"event_msg\"\n}\n```\n\nSo every line looks like: `{\"timestamp\":\"…\",\"type\":\"<variant>\",\"payload\":{…}}`.\n\n**First line — `session_meta`** (`SessionMeta`/`SessionMetaLine`), carries session-level context used for resume:\n`id` (ThreadId), `forked_from_id`, `timestamp`, `cwd`, `originator`, `cli_version`, `source`, `model_provider`, `base_instructions`, `agent_nickname`/`agent_role`, `dynamic_tools`, `memory_mode`, and a flattened optional `git` (`GitInfo`).\n\n**Conversation content — `response_item`** (`ResponseItem`), serde `tag=\"type\"`, snake_case variants. Key ones:\n- `message` → `{ role: String, content: Vec<ContentItem>, phase }`. `ContentItem` is itself tagged: `input_text {text}`, `input_image {image_url, detail}`, `output_text {text}`. **Note: roles and content are nested inside a `content` array of typed parts** — input vs. output text are *different* variants, not a single `text` field.\n- Tool calls/results: `function_call` (with arguments), `function_call_output` (tool result payload), `local_shell_call`, `custom_tool_call` / `custom_tool_call_output`, `web_search_call`, `image_generation_call`.\n- `reasoning` (summary + optional content), `compaction`/`context_compaction`.\n\n**Lifecycle/telemetry — `event_msg`** (`EventMsg`): `UserMessage`, `AgentMessage`, `TokenCount`, `TurnComplete`, plus (in extended mode) `ExecCommandEnd`, `Error`, `McpToolCallEnd`, etc.\n\n**Persistence policy matters for parsers:** there are two modes. **Limited (default)** persists only essential markers (`UserMessage`, `AgentMessage`, `TokenCount`, `TurnComplete`); **Extended** adds diagnostic events. So the *same* logical message can appear as a structured `response_item` and/or as an `event_msg` depending on mode — a normalizer must decide which to treat as canonical to avoid duplicates.\n\n## 4. Resuming a prior session\n\nYes. `codex resume`:\n- `codex resume` → interactive picker of recent sessions (shows a summary; Enter reopens).\n- `codex resume --last` → skip picker, continue the most recent session **in the current working directory**.\n- `codex resume --last --all` → most recent session across **any** directory (resume is cwd-scoped by default).\n- `codex resume <SESSION_ID>` → resume a specific session by UUID.\n\nOn resume, Codex loads the JSONL rollout (via the state DB index / `ThreadHistoryBuilder`), reconstructs messages + tool calls + context, and — importantly — **appends new turns to the existing rollout file** rather than creating a new one. The app-server's `thread/resume` **requires a materialized rollout file**; if it's missing, it errors (the #21196 data-loss case).\n\n## 5. What differs from Claude Code's model — and complicates a generic parser\n\nClaude Code: `~/.claude/projects/<project-hash>/<session-id>.jsonl`, one flat JSONL keyed directly by session id, project-partitioned by an encoded cwd. Codex differs in ways that matter for a \"given a session id → normalized messages\" seam:\n\n1. **Locating the file is harder.** Codex partitions by **date** (`YYYY/MM/DD`), not by project/cwd, and the id is a *substring* of the filename, not the whole name. You can't construct the path from the id alone — you must **glob** the date tree (or query the SQLite DB). You also don't know the date, so the glob must be recursive. Claude Code lets you derive/guess the path far more directly.\n\n2. **Two sources of truth.** Codex has a **SQLite state DB index alongside the JSONL files**, and they can desync (DB references a deleted rollout file — issue #21196). A robust seam should treat the JSONL as canonical and not depend on the DB, but be aware resume itself depends on the DB.\n\n3. **Nested, doubly-tagged envelope.** Every record is `{timestamp, type, payload}` and the message payload is *itself* a tagged `ResponseItem` whose content is an array of tagged `ContentItem`s (`input_text` vs `output_text`). That's effectively **three levels** of `\"type\"` discrimination versus Claude Code's flatter per-line `{type, role, message…}`. Tool calls/results are separate top-level item types (`function_call`, `function_call_output`, `local_shell_call`, …), not embedded in a single assistant message.\n\n4. **Mixed event vocabularies in one file.** `response_item` (model-API-shaped items) and `event_msg` (Codex lifecycle/telemetry) coexist, and the **persistence mode (Limited vs Extended)** changes which appear. A normalizer must dedupe overlapping representations and tolerate missing diagnostic events.\n\n5. **Append-on-resume with forking.** Resumed sessions append to the original file (single id, growing transcript), but Codex also supports **forking** (`forked_from_id` in `SessionMeta`) — so reconstructing a full lineage may require following fork pointers across multiple files. Claude Code's model is closer to one-file-per-session.\n\n6. **Filename ≠ identity.** Renaming a Codex rollout file does not change the session it resumes to; identity lives in `SessionMeta.id`. A parser keyed purely on filename can be fooled — read the first `session_meta` line to confirm the id.\n\n7. **Ephemeral sessions may not exist on disk at all** (`codex exec --ephemeral`), and `codex exec` JSON streaming uses a *different* event vocabulary (`thread.started`, `turn.completed`, `item.*`) than the persisted rollout schema — don't conflate the live `--json` stream format with the on-disk rollout format.\n\n**Net design implication for your seam:** for Codex, \"given a session id → file\" should be a recursive glob over `~/.codex/sessions/**/rollout-*-<id>.jsonl` (with a SQLite-DB fast path as optional), and the normalizer must flatten a 3-level tagged envelope, reconcile `response_item` vs `event_msg`, handle Limited/Extended mode gaps, and optionally follow `forked_from_id`. That's a notably richer adapter than the Claude Code path.\n\n## Sources\n- DeepWiki (code-indexed): [Rollout Persistence and Replay](https://deepwiki.com/openai/codex/3.5.2-rollout-persistence-and-replay), [Session Resumption](https://deepwiki.com/openai/codex/4.4-session-resumption)\n- Source: [`codex-rs/protocol/src/protocol.rs`](https://github.com/openai/codex/blob/main/codex-rs/protocol/src/protocol.rs), [`codex-rs/protocol/src/models.rs`](https://github.com/openai/codex/blob/main/codex-rs/protocol/src/models.rs), [`codex-rs/rollout/src/recorder.rs`](https://github.com/openai/codex/blob/main/codex-rs/rollout/src/recorder.rs)\n- Official docs: [Codex CLI command reference](https://developers.openai.com/codex/cli/reference), [Non-interactive mode (`--json`)](https://developers.openai.com/codex/noninteractive)\n- GitHub: [Discussion #3827 (session/rollout files)](https://github.com/openai/codex/discussions/3827), [Discussion #1076 (resuming sessions)](https://github.com/openai/codex/discussions/1076), [Issue #21196 (DB vs missing rollout files)](https://github.com/openai/codex/issues/21196), [Issue #2288 (trajectory JSON for exec)](https://github.com/openai/codex/issues/2288)\n- Community tools confirming the path/format: [PixelPaw-Labs/codex-trace](https://github.com/PixelPaw-Labs/codex-trace), [InventiveHQ: ~/.codex config locations](https://inventivehq.com/knowledge-base/openai/where-configuration-files-are-stored), [InventiveHQ: resume sessions](https://inventivehq.com/knowledge-base/openai/how-to-resume-sessions)\n\n**Confidence notes:** Path pattern, filename format, JSONL `{timestamp,type,payload}` envelope, `SessionMeta`/`ResponseItem`/`ContentItem` field names, and the `codex resume` flags are directly grounded in current `main` source and official docs — high confidence. The **SQLite state-DB index** is a more recent addition tied to the app-server; its exact location/schema I did not pin down to a file path, so treat that layer as version-dependent and verify against the installed Codex version before depending on it.</result>\n<usage><subagent_tokens>35253</subagent_tokens><tool_uses>11</tool_uses><duration_ms>130148</duration_ms></usage>\n</task-notification>"},"uuid":"be305173-435b-4d4e-a847-513157ee3b4c","timestamp":"2026-05-30T09:53:12.172Z","permissionMode":"bypassPermissions","origin":{"kind":"task-notification"},"userType":"external","entrypoint":"cli","cwd":"C:\\Users\\decid\\Documents\\projects\\spt-core","sessionId":"4330b8b9-2a90-4c64-8d31-ac5f54385dce","version":"2.1.156","gitBranch":"HEAD"}
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{"parentUuid":"7a423c4e-76fb-4fd6-9a5a-779569707cbd","isSidechain":false,"message":{"model":"claude-opus-4-8","id":"msg_013KUJitAtRS9Eo4D2FhnX1T","type":"message","role":"assistant","content":[{"type":"text","text":"Codex research back — strongly validates the dual-path history design. Folding the rationale in."}],"stop_reason":"tool_use","stop_sequence":null,"stop_details":null,"usage":{"input_tokens":159,"cache_creation_input_tokens":27113,"cache_read_input_tokens":238066,"output_tokens":1280,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":27113,"ephemeral_5m_input_tokens":0},"inference_geo":"not_available","iterations":[{"input_tokens":159,"output_tokens":1280,"cache_read_input_tokens":238066,"cache_creation_input_tokens":27113,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":27113},"type":"message"}],"speed":"standard"},"diagnostics":{"cache_miss_reason":{"type":"messages_changed","cache_missed_input_tokens":209613}}},"requestId":"req_011CbYYpFVuxM5G1mUpwhx9u","type":"assistant","uuid":"b783eb6f-bd22-432f-96b9-5c70da992212","timestamp":"2026-05-30T09:53:23.777Z","userType":"external","entrypoint":"cli","cwd":"C:\\Users\\decid\\Documents\\projects\\spt-core","sessionId":"4330b8b9-2a90-4c64-8d31-ac5f54385dce","version":"2.1.156","gitBranch":"HEAD"}
{"parentUuid":"0fed92e1-0c37-4b3f-be9a-24e0bc1092e9","isSidechain":false,"message":{"model":"claude-opus-4-8","id":"msg_01VUkoETQYAijCSEQKVnPztV","type":"message","role":"assistant","content":[{"type":"text","text":"Done. Codex findings, condensed: its transcript model is *much* harder than Claude Code's — date-partitioned, glob-to-locate (id is only a filename substring), 3-level tagged envelope, a SQLite index that can desync from the files, Limited/Extended modes, and session forking. That decisively confirms **adapter-owned normalize-command** (a built-in per-harness parser would be unbounded version-fragile maintenance), with **Path B native store** as the escape hatch. Folded into CONTEXT as the seam's rationale.\n\nStill awaiting your call on the three open items from before the research landed:\n\n1. **post-spawn boot nonce** — add a generation/boot nonce to the post-spawn payload so a respawn-after-crash can't be confused with a stale duplicate bind (guards hazard 2.4)? Recommend yes.\n2. **UUID-injection vs post-spawn** — does UUID-injection *fully* suppress post-spawn (accepting that `parent_pid`/port/identity then can't be reported, and pid-indirection topologies lose proper session binding), or is post-spawn still fired for binding even when the UUID was injected (my recommendation)?\n3. **Walk the inbound subcommand surface next?** — enumerate the commands-API adapters call (activity/idle, poll, post-spawn bind, hook-event reports: subagent start/stop, clear/compact, crash) one-by-one like we did outbound, then standalone install, then assemble the PRD."}],"stop_reason":"end_turn","stop_sequence":null,"stop_details":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":1498,"cache_read_input_tokens":265179,"output_tokens":493,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":1498,"ephemeral_5m_input_tokens":0},"inference_geo":"not_available","iterations":[{"input_tokens":2,"output_tokens":493,"cache_read_input_tokens":265179,"cache_creation_input_tokens":1498,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1498},"type":"message"}],"speed":"standard"},"diagnostics":null},"requestId":"req_011CbYYqdxJfQpcSMNoDttNu","type":"assistant","uuid":"51566465-7e07-4f5a-b3ef-5d1e18dad071","timestamp":"2026-05-30T09:53:39.513Z","userType":"external","entrypoint":"cli","cwd":"C:\\Users\\decid\\Documents\\projects\\spt-core","sessionId":"4330b8b9-2a90-4c64-8d31-ac5f54385dce","version":"2.1.156","gitBranch":"HEAD"}


You are the echo-commune summarizer for doyle.  CURRENT_LIVE_CONTEXT: # Psyche Context for doyle ## Status Generation 10 resumed. Prior context absorbed (2026-05-29). ## Current Focus spt-core archite…


Perfect. Now I have the full delta source. Let me analyze what changed relative to the CURRENT_LIVE_CONTEXT:

**From CURRENT_LIVE_CONTEXT (Gen 10 resumed, 2026-05-29):**
- Q13 LOCKED
- 10 seams identified
- 2 forks pending (Fork #4 parser strategy, Fork #5 idle signal)
- KNOWN-HAZARDS.md written

**From Delta (turns 1-18, ending 2026-05-30):**

1. User confirmed three Q14 decisions (2026-05-29 11:28):
   - macOS out for v1
   - defer storage specifics, but migration must be automatic/transparent
   - cover each seam one-by-one (separate from standalone installation)

2. 10 outbound seams detailed (2026-05-29 11:29):
   - spawn-session (command template with substitution slots)
   - spawn-psyche (separate from spawn-session, for memory mind)
   - echo-commune (command template for token-light summarization)
   - history-lookup (given session handle, return transcript)
   - activity/idle detection
   - inject-input (topology-dependent)
   - resume-session
   - capability declaration
   - adapter-update
   - session-invocation config

3. User detailed feedback on all 10 seams (2026-05-30 09:49):
   - **seam 1 (spawn-session):** id optional, command template yes, cwd yes, env injection NO (auto-handled), initial context NO (populate on first commune), session-id NO (generated after spawn, via post-spawn hook). post-spawn hook should carry: session_id (if not injected), parent_pid, endpoint identity, local HTTP port (optional), skeleton→live flip. Spt-core could inject UUID to skip post-spawn bind.
   - **seam 2 (spawn-psyche):** two templates (fresh start, resume). resume template includes `$session_id`. Both include `$psyche_prompt`. Model choice is adapter's responsibility.
   - **seam 3 (echo-commune):** command template, source log lookup template (uses `$session_id`). Need to accommodate future storage patterns (codex, pi).
   - **seam 4 (history-lookup):** RESOLVED — manifest declares a normalize-command the adapter owns. spt-core docs inform devs how to build a parser. OR spt-core offers a `history-log` seam/API to store transcripts spt-core-native way (simplifies integration).
   - **seam 5 (activity/idle):** PTY quiescence insufficient since AskUserQuestion stalls PTY while locking stdin. Adapter triggers spt-core commands at appropriate moments to emit sentinels. Idle handling stays internal to spt-core+adapter command API, no manifest signal needed.
   - **seam 6 (inject-input):** Several approaches available—spt-hosted PTY injection (optional key sequences), adapter hooks calling spt-core poll commands, child relay, or HTTP POST to endpoint. Adapter specifies preferred mode and submit sequence in manifest.
   - **seam 7 (resume-session):** Two paths: resume with wiped context (fresh session) plus psyche-download, or resume existing harness session. Psyche-download variant accepts `$psyche-context` key for immediate launch.
   - **seam 8 (capability declaration):** Adapter manifest lists supported endpoint types.
   - **seam 9 (adapter-update):** Locked Q10a—file-pull or delegated-command.
   - **seam 10 (session-invocation config):** Adapter owns this, not spt-core.

Post-spawn payload includes session_id (unless UUID-injected), parent_pid as stable session anchor, endpoint identity and type confirmation, optional local HTTP port, skeleton→live flip, and a proposed generation/boot nonce to prevent respawn-after-crash confusion. UUID-injection eliminates reporting session_id back but creates tension around whether to use it.

If there's pid indirection through wrapper scripts or subprocesses, parent_pid and port still need reporting even with UUID-injection. Post-spawn becomes optional only when spt-core injected the UUID AND the launched process pid directly anchors the session. Codex research confirms the session path structure (~/.codex/sessions/YYYY/MM/DD/rollout-<timestamp>-<conversation_id>.jsonl), filename globbing requirements, three-level tagged envelope structure, and that SQLite state can desync from files. This validates the adapter-owned normalize-command approach and supports spt-core's native store strategy.

Three decisions remain open: whether to add post-spawn boot nonce, how to handle the UUID-injection versus post-spawn trade-off (full suppress or partial), and whether to walk the inbound subcommand surface next before tackling standalone install and the PRD. The Q14 scope is confirmed (macOS excluded, migration deferred, seams addressed incrementally), and ten seams have been detailed with specific field names, topology variations, and substitution keys.


[COMMUNE]
<live-context>
## Status
Generation 10 continued. Seam design in flight (Q14). Codex research complete; three decision forks open.

## Key Decisions and State
- Q13 LOCKED: crate layering, public API surface, wire-protocol independence.
- Q14 OPEN (inbound): 10 outbound manifest seams refined with concrete field names, template substitution keys, topology variations. Three forks pending user decision.
- **Seams refined (all outbound):**
  1. spawn-session: command template + cwd/project, env auto-handled by spt-core, id optional w/ picker fallback, session-id generated post-spawn via hook.
  2. spawn-psyche: two templates (fresh/resume), $session_id in resume, $psyche_prompt in both, model via adapter.
  3. echo-commune: command template + source-log-lookup template ($session_id), accommodates codex/pi storage patterns.
  4. history-lookup: **RESOLVED** — manifest declares adapter-owned normalize-command; OR spt-core offers native `history-log` API (simplifies integration).
  5. activity/idle: adapter calls spt-core commands at right times (PTY quiescence insufficient per AskUserQuestion stall case); idle management internal to spt-core/adapter, no manifest idle-signal.
  6. inject-input: multiple modes (PTY, hooks+polls, child relay, HTTP POST); adapter declares preferred + submit sequence.
  7. resume-session: two forms (cleared-context + psyche-download, or resume harness session); $psyche-context optional for immediate launch.
  8. capability-declaration: adapter manifest lists supported endpoint types.
  9. adapter-update: locked Q10a (file-pull or command).
  10. session-invocation-config: adapter-owned, not spt-core concern.
- **post-spawn hook payload refined:**
  - session_id (if not UUID-injected)
  - parent_pid (KNOWN-HAZARDS 2.1 — stable session-binding anchor)
  - endpoint identity + type confirmation
  - local HTTP port (optional)
  - skeleton→live flip
  - **PROPOSED:** generation/boot nonce (guards hazard 2.4 — respawn-after-crash vs stale duplicate)
- **Codex research (Rust source, DeepWiki, GitHub issues):**
  - Transcript: ~/.codex/sessions/YYYY/MM/DD/rollout-<ts>-<conversation_id>.jsonl
  - Id is filename substring → glob needed (vs Claude Code's direct derivation)
  - 3-level tagged envelope (RolloutLine → RolloutItem → ContentItem)
  - SQLite index can desync from files (data-loss hazard)
  - Limited/Extended persistence modes (dedup risk for normalizers)
  - Session forking (lineage follow-up needed)
  - **Validates:** adapter-owned normalize-command + spt-core native store (Path B) escape hatch.
- **User scope refinements:**
  - macOS deferred for v1
  - Legacy spt migration must be automatic/transparent
  - Cover each outbound seam one-by-one (separate from standalone install flow)

## Tracked Open Decisions
- **post-spawn boot nonce:** Add generation/boot nonce to post-spawn payload? (recommend yes per hazard 2.4)
- **UUID-injection vs post-spawn trade-off:** Does spt-core UUID-injection *fully* suppress post-spawn (accept parent_pid/port/identity loss + pid-indirection hazard), or stay partial (post-spawn still fires for binding even if UUID was injected)? **Recommend partial** — post-spawn needed when uuid-injected but pid-indirection exists.
- **Inbound subcommand surface next:** Walk commands-API seams (activity/idle report, poll, post-spawn bind, hook-events: subagent start/stop, clear/compact, crash) one-by-one like outbound, then standalone install, then assemble PRD?

## Completed Items
- KNOWN-HAZARDS.md written (23 invariants)
- 10 outbound seams enumerated + refined
- Codex transcript storage research
</live-context>
<project-context>
## Session Context
Detailed seam design in progress. No code changes yet (design-phase work).

## Artifacts
- 10 outbound seam definitions with field specs, template keys, topology notes.
- Codex log storage analysis (validated history-lookup approach).
</project-context>
[/COMMUNE]