can1357/oh-my-pi · error · Error

Cannot load ${info.source} session with CodexSessionStore

Error message

Cannot load ${info.source} session with CodexSessionStore

What it means

CodexSessionStore.load() only accepts foreign session infos whose source is 'codex'. Passing an info discovered by another store (claude, gemini, etc.) throws immediately. Each foreign-session store is source-specific by design.

Source

Thrown at packages/coding-agent/src/session/codex-session-store.ts:544

			sessions.push({
				source: "codex",
				id,
				path: filePath,
				cwd,
				title: indexed?.thread_name,
				created,
				modified,
			});
		}
		sessions.sort(
			(left, right) => right.modified.getTime() - left.modified.getTime() || left.id.localeCompare(right.id),
		);
		return sessions;
	}

	/** Converts one Codex rollout into a non-persistent OMP session. */
	async load(info: ForeignSessionInfo): Promise<SessionManager> {
		if (info.source !== "codex") throw new Error(`Cannot load ${info.source} session with CodexSessionStore`);
		let records: Record<string, unknown>[];
		try {
			records = await readJsonLines(info.path);
		} catch (error) {
			throw new Error(`Unable to read Codex session ${info.id} at ${info.path}`, { cause: error });
		}
		if (records.length === 0) throw new Error(`Codex session ${info.id} at ${info.path} is empty or malformed`);

		const metadata = records.find(record => record.type === "session_meta" && isRecord(record.payload));
		const cwd =
			metadata && isRecord(metadata.payload) ? (stringField(metadata.payload, "cwd") ?? info.cwd) : info.cwd;
		const manager = SessionManager.inMemory(cwd);
		const canonical = canonicalTexts(records);
		const converted: ConvertedRecord[] = [];
		const toolNames = new Map<string, string>();
		let model = "codex";
		let fallbackTimestamp = info.created.getTime();
		let title = info.title;

View on GitHub (pinned to 9690622007)

Solutions

1. Route each ForeignSessionInfo to the store matching its source (info.source === 'codex' → CodexSessionStore)
2. Check info.source before calling load, or use a dispatch map from source to store
3. Fix the code that produced the info with the wrong source value

Example fix

// before
const manager = await codexStore.load(anyInfo);
// after
const store = anyInfo.source === 'codex' ? codexStore : claudeStore;
const manager = await store.load(anyInfo);

function canLoadWithCodex(info: ForeignSessionInfo): boolean {
  return info.source === 'codex';
}

function isCodexSessionInfo(info: ForeignSessionInfo): info is ForeignSessionInfo & { source: 'codex' } {
  return info.source === 'codex';
}

try {
  const manager = await codexStore.load(info);
} catch (err) {
  if (err instanceof Error && err.message.startsWith('Cannot load')) {
    throw new Error(`route ${info.source} sessions to their own store, not CodexSessionStore`);
  }
  throw err;
}

When it happens

Trigger: Calling `codexSessionStore.load(info)` where info.source is anything other than "codex" — typically because the info object came from listing a different provider's sessions or from a hand-constructed ForeignSessionInfo with the wrong source value.

Common situations: Generic session-picker code iterating a mixed list of foreign sessions and routing all of them to one store; refactor that swapped ClaudeSessionStore for CodexSessionStore; manual info construction with source left at its default.

Related errors

• Unable to read Codex session ${info.id} at ${info.path}
• Codex session ${info.id} at ${info.path} is empty or malform
• No messages to continue from
• Cannot continue from message role: assistant
• Gemini Files API cannot delete a handle from another provide

AI-assisted analysis of can1357/oh-my-pi@9690622007 (2026-08-31). Data as JSON: /api/errors/c082b4d20fff402e. Report an issue: GitHub.