Function materializeM0Pi

packages/pi-plugin/src/inject-compartments-pi.ts:1322–1496

(
	state: PiM0M1State,
	db: ContextDatabase,
)

}

export function materializeM0Pi(
	state: PiM0M1State,
	db: ContextDatabase,
): {
	m0: string;
	m1: string;
	snapshotMarkers: PiM0SnapshotMarkers;
	renderedMemoryIds: number[];
} {
	// Phase 1 (no lock): read markers + render. Rendering can be slow, so we do
	// it OUTSIDE the write lock to keep the BEGIN IMMEDIATE critical section tiny.
	const docs = readProjectDocsForPiM0(state);
	const foldMaterializedAt = Date.now();
	const frozen = readFrozenM0InputsPi(state, db, docs, foldMaterializedAt);
	const snapshotMarkers = frozen.markers;

	const snapshotMemories = frozen.memories;
	const snapshotCompartments = frozen.compartments;
	const snapshotUserProfile = frozen.userProfile;
	const renderedMemoryIds = renderedMemoryIdsForPi(
		state,
		snapshotMemories,
		frozen.workspace,
		db,
	);
	// Over-budget tightening loop (matches OpenCode materializeM0): if the
	// rendered m[0] exceeds the history budget, escalate the decay pressure and
	// re-render up to 3x so tight budgets demote more aggressively. Without this,
	// Pi would select different (looser) tiers than OpenCode under budget pressure.
	let decayPressureMultiplier = 1;
	let m0 = renderM0Pi(
		state,
		db,
		docs.renderedBlock,
		decayPressureMultiplier,
		snapshotMemories,
		snapshotCompartments,
		snapshotUserProfile,
		frozen.workspace,
	);
	const historyBudget =
		state.historyBudgetTokens ?? DEFAULT_HISTORY_BUDGET_TOKENS;
	let attempts = 0;
	while (
		historyBudget > 0 &&
		historySliceTokensPi(m0) > historyBudget * 1.05 &&
		attempts < 3
	) {
		decayPressureMultiplier *= 1.15;
		m0 = renderM0Pi(
			state,
			db,
			docs.renderedBlock,
			decayPressureMultiplier,
			snapshotMemories,
			snapshotCompartments,
			snapshotUserProfile,
			frozen.workspace,