earendil-works/pi · error · Error

Invalid entry ID for forking

Error message

Invalid entry ID for forking

What it means

Error "Invalid entry ID for forking" thrown in earendil-works/pi.

Source

Thrown at packages/coding-agent/src/core/agent-session-runtime.ts:276

		await this.finishSessionReplacement(options?.withSession);
		return { cancelled: false };
	}

	async fork(
		entryId: string,
		options?: { position?: "before" | "at"; withSession?: (ctx: ReplacedSessionContext) => Promise<void> },
	): Promise<{ cancelled: boolean; selectedText?: string }> {
		const position = options?.position ?? "before";
		const beforeResult = await this.emitBeforeFork(entryId, { position });
		if (beforeResult.cancelled) {
			return { cancelled: true };
		}
		let targetLeafId: string | null;
		let selectedText: string | undefined;

		const selectedEntry = this.session.sessionManager.getEntry(entryId);
		if (!selectedEntry) {
			throw new Error("Invalid entry ID for forking");
		}

		if (position === "at") {
			targetLeafId = selectedEntry.id;
		} else {
			if (selectedEntry.type !== "message" || selectedEntry.message.role !== "user") {
				throw new Error("Invalid entry ID for forking");
			}
			targetLeafId = selectedEntry.parentId;
			selectedText = extractUserMessageText(selectedEntry.message.content);
		}

		const previousSessionFile = this.session.sessionFile;
		if (this.session.sessionManager.isPersisted()) {
			const currentSessionFile = this.session.sessionFile;
			if (!currentSessionFile) {
				throw new Error("Persisted session is missing a session file");
			}

View on GitHub (pinned to 4af9d21d3b)

When it happens

Trigger: Thrown at packages/coding-agent/src/core/agent-session-runtime.ts:276 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of earendil-works/pi@4af9d21d3b (2026-08-24). Data as JSON: /api/errors/f52b59522fad6630. Report an issue: GitHub.