fix(opencode): include cache read and write usage totals

src/main/opencode-usage/opencode-usage-row-queries.ts

@@ -27,6 +27,7 @@ type OpenCodeSessionUsageRow = {
   tokens_output: number
   tokens_reasoning: number
   tokens_cache_read: number
+  tokens_cache_write: number
 }
 
 function getProjectJoin(db: Database.Database): string {
@@ -61,6 +62,17 @@ function canReadSessionUsageRows(db: Database.Database): boolean {
   )
 }
 
+function getSessionCacheWriteSelect(db: Database.Database): string {
+  return columnExists(db, 'session', 'tokens_cache_write') ? 's.tokens_cache_write' : '0'
+}
+
+function getSessionTokenTotalExpression(db: Database.Database): string {
+  const cacheWrite = columnExists(db, 'session', 'tokens_cache_write')
+    ? ' + tokens_cache_write'
+    : ''
+  return `tokens_input + tokens_output + tokens_reasoning + tokens_cache_read${cacheWrite}`
+}
+
 function getSessionUsageRowCount(db: Database.Database): number {
   if (!canReadSessionUsageRows(db)) {
     return 0
@@ -69,7 +81,7 @@ function getSessionUsageRowCount(db: Database.Database): number {
     .prepare(
       `SELECT COUNT(*) AS count
        FROM session
-       WHERE tokens_input + tokens_output + tokens_reasoning + tokens_cache_read > 0`
+       WHERE ${getSessionTokenTotalExpression(db)} > 0`
     )
     .get() as { count?: number } | undefined
   return row?.count ?? 0
@@ -78,14 +90,17 @@ function getSessionUsageRowCount(db: Database.Database): number {
 function selectSessionUsageRows(db: Database.Database): OpenCodeUsageRow[] {
   const projectJoin = getProjectJoin(db)
   const sessionModelSelect = getSessionModelSelect(db)
+  const cacheWriteSelect = getSessionCacheWriteSelect(db)
+  const tokenTotalExpression = getSessionTokenTotalExpression(db)
   const rows = db
     .prepare(
       `SELECT s.id, s.id AS session_id, s.time_created, s.time_updated,
               s.directory, s.title, p.worktree, ${sessionModelSelect},
-              s.cost, s.tokens_input, s.tokens_output, s.tokens_reasoning, s.tokens_cache_read
+              s.cost, s.tokens_input, s.tokens_output, s.tokens_reasoning, s.tokens_cache_read,
+              ${cacheWriteSelect} AS tokens_cache_write
        FROM session s
        ${projectJoin}
-       WHERE s.tokens_input + s.tokens_output + s.tokens_reasoning + s.tokens_cache_read > 0
+       WHERE ${tokenTotalExpression.replaceAll('tokens_', 's.tokens_')} > 0
        ORDER BY s.time_created, s.id`
     )
     .all() as OpenCodeSessionUsageRow[]
@@ -105,10 +120,15 @@ function selectSessionUsageRows(db: Database.Database): OpenCodeUsageRow[] {
         input: row.tokens_input,
         output: row.tokens_output,
         reasoning: row.tokens_reasoning,
-        total: row.tokens_input + row.tokens_output + row.tokens_reasoning,
+        total:
+          row.tokens_input +
+          row.tokens_output +
+          row.tokens_reasoning +
+          row.tokens_cache_read +
+          row.tokens_cache_write,
         cache: {
           read: row.tokens_cache_read,
-          write: 0
+          write: row.tokens_cache_write
         }
       }
     })

src/main/opencode-usage/scanner.test.ts

@@ -43,6 +43,7 @@ function createSessionTotalsSchema(db: Database.Database): void {
       tokens_output INTEGER,
       tokens_reasoning INTEGER,
       tokens_cache_read INTEGER,
+      tokens_cache_write INTEGER,
       time_created INTEGER,
       time_updated INTEGER
     );
@@ -57,9 +58,9 @@ function insertSessionTotalsRow(
   db.prepare(
     `INSERT INTO session (
       id, directory, title, model, cost,
-      tokens_input, tokens_output, tokens_reasoning, tokens_cache_read,
+      tokens_input, tokens_output, tokens_reasoning, tokens_cache_read, tokens_cache_write,
       time_created, time_updated
-    ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
+    ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
   ).run(
     sessionId,
     `${WORKTREE}/packages/app`,
@@ -70,6 +71,7 @@ function insertSessionTotalsRow(
     100,
     0,
     0,
+    0,
     1_777_777_700_000,
     1_777_777_800_000
   )
@@ -235,6 +237,7 @@ describe('parseOpenCodeUsageDatabase', () => {
         tokens_output INTEGER,
         tokens_reasoning INTEGER,
         tokens_cache_read INTEGER,
+        tokens_cache_write INTEGER,
         time_created INTEGER,
         time_updated INTEGER
       );
@@ -243,9 +246,9 @@ describe('parseOpenCodeUsageDatabase', () => {
     db.prepare(
       `INSERT INTO session (
         id, project_id, directory, title, model, cost,
-        tokens_input, tokens_output, tokens_reasoning, tokens_cache_read,
+        tokens_input, tokens_output, tokens_reasoning, tokens_cache_read, tokens_cache_write,
         time_created, time_updated
-      ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
+      ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
     ).run(
       'session-1',
       'project-1',
@@ -257,6 +260,7 @@ describe('parseOpenCodeUsageDatabase', () => {
       500,
       100,
       250,
+      75,
       1_777_777_700_000,
       1_777_777_800_000
     )
@@ -274,7 +278,7 @@ describe('parseOpenCodeUsageDatabase', () => {
       totalCachedInputTokens: 250,
       totalOutputTokens: 500,
       totalReasoningOutputTokens: 100,
-      totalTokens: 1850,
+      totalTokens: 1925,
       estimatedCostUsd: 0.06
     })
     expect(parsed.dailyAggregates).toEqual([
@@ -284,7 +288,7 @@ describe('parseOpenCodeUsageDatabase', () => {
         cachedInputTokens: 250,
         outputTokens: 500,
         reasoningOutputTokens: 100,
-        totalTokens: 1850,
+        totalTokens: 1925,
         estimatedCostUsd: 0.06
       })
     ])