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fix(chat): show an empty chat for an omo session not written yet - #360
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Included review availability: This review used your included allowance. Your plan provides up to 10 included reviews per hour; 8 remain after this review. 📝 SummarySummary by CodeRabbit
WalkthroughOmO session lookup identifies held sessions without transcript files. For a pending session, conversation handling returns an empty OmO conversation with session-specific history metadata. Older-page requests return ChangesOmO pending conversation handling
Priority: ⬇️ Low Estimated code review effort: 2 (Simple) | ~12 minutes Change: Bug fix · Severity of issue fixed: Low Merge Risk: ⚪ Minimal · up to This change shows an empty OmO chat while a held session has not yet written its file. The earlier concerns about directory-read failures, filename matching and stale cursors no longer apply at the current head, and no concrete merge-blocking risk remains. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to The new response does not expose transcript contents or let a caller choose a session directly. It does expose the pending session identifier to callers who can already access the conversation endpoint. The first-write transition and the endpoint’s full deployment exposure have not been completely verified. Retained concerns Security review detailsSecurity Blast Radius
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Full details: Docstring CoverageExplanation Docstring coverage is 66.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 6 functions across 3 files. (1 skipped: 1 unsupported.) ✨ Finishing Touches🧪 Generate unit tests (beta)
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Inline comments:
Review comments at @server/conversation.ts:
- Line 815: In the ConversationNotStarted handler around resolveTranscript,
reject requests with page.before by raising HistoryChanged before returning the
empty response. Preserve the page.from polling exception and its existing
empty-response behavior.
Review comments at @server/omo.contract.test.ts:
- Around line 143-146: Extend the HTTP contract tests in the existing GET
/api/pane/conversation coverage in api.contract.test.ts with a
pending-to-written session sequence: assert that a held session without a .jsonl
file returns empty turns and history_id "unwritten:<id>", then write the file
and assert the normal OmO transcript response.
Review comments at @server/omo.ts:
- Line 250: Update the readdirSync error handling in the directory-reading flow
so only ENOENT and ENOTDIR are treated as an absent directory; propagate all
other errors, including EACCES and ELOOP, instead of leaving names empty.
- Line 254: Update the held-session file check in the return expression to match
the session’s filename exactly or otherwise verify that the file belongs to the
held ID; do not suppress pending based solely on an unrelated .jsonl filename
containing id.
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CHANGELOG.mdserver/conversation.tsserver/omo.contract.test.tsserver/omo.ts
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OmO writes its session file with the first message, at launch and again after /new. Until then the pane holds a session (its session-holders record) that no file names, so the chat answered scrollback and offered "Conversation unavailable". A held session with no file is now an empty omo conversation; its first message writes the file and the chat follows it under a new history_id.
Match the held session's file by its name (<start time>_<id>.jsonl) or its header id, not any name containing the id; leave pending untold when the store cannot be listed; answer 409 history_changed for an older-page cursor while the session is not written; cover the pending-to-written sequence over HTTP.
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…ession # Conflicts: # CHANGELOG.md
# Conflicts: # CHANGELOG.md
Change
An OmO pane that has not been sent a message yet opens its chat on "Conversation unavailable — show terminal output". That happens on every new OmO pane and after every
/new, so a working pane looks broken until the first message.OmO publishes its holder record (
session-holders/<id>/<pid>.json) as soon as it starts or runs/new. It writes the session file (*.jsonl) only with the first message. In the session that found this, the holder appeared at 15:45:41 and the file at 15:46:12, when the first message was sent. During that gap no file names the held session, so/api/pane/conversationansweredscrollbackand the chat showed the terminal fallback.#351 already stops the chat from showing the conversation from before
/new. It left this state as the fresh-OmO fallback and asked which state the chat should show. This PR proposes an answer: an empty OmO chat.server/omo.ts: when the one session a pane's OmO process holds has no file in the store yet,omoSessionForPanereports it aspending. It builds on fix(chat): omo에서 /new 후 이전 대화가 남아 보이는 문제 수정 #351'sheldRuntime. The check reads the store's file names directly, so the bounded candidate list cannot mistake an existing file for a missing one.omoTranscriptForPanekeeps its signature.server/conversation.ts: for such a pane,paneConversationreturns an emptyomo-transcript(turns: [],cursor: null,history_id: "unwritten:<session id>") instead of throwingConversationUnavailable. The chat then shows its existing "No conversation yet — say something below" state. The first message writes the file, thehistory_idchanges, and the chat loads that conversation. Image and tool-output lookups still treat the pane as having no transcript.CHANGELOG.md: entry under[Unreleased]→### Fixed.Validation
macOS (Apple silicon), herdr 0.9.3, Bun 1.4.2, omo-ai with the senpi engine.
Real OmO, no message sent: ran OmO in an owned, temporary workspace and queried both servers before any message.
{"source":"scrollback","turns":[]}{"source":"omo-transcript","turns":[],"metadata":{"model":null,"reasoning_effort":null},"cursor":null,"history_id":"unwritten:01a0fe94-…"}Screenshots: same pane, English UI, sidebar cropped out.
Contract tests in
server/omo.contract.test.ts:tells a held session omo has not written yet from an older one: a fresh pane, a pane whose launch--session-idnames an older session (as after/new), a file whose name only contains the held id, and the pane resolving to its file once it is written.serves a held omo session as an empty conversation until its file is written: over HTTP (createServer), the emptyomo-transcriptwithhistory_id: "unwritten:<id>", 409 for a stalebeforecursor, then the written transcript with a newhistory_id.pendingdisabled, the oldincludesname match, thebefore409 removed).bun run generate:types --check,bun run typecheck,bun run build: pass.bun run test:unit: 1057 passed, 4 skipped, 1 failed. The failure isserver/pi.test.ts"accepts a session file inside the store", which also fails onupstream/mainon macOS (/varvs/private/vartmpdir).server/omo.contract.test.tson macOS, run withTMPDIR=$(realpath $TMPDIR): 6 passed. Two tests fail the same way onupstream/mainbecause they read/proc.Not verified
history_idchange uses the chat's existing reset path.