diff --git a/src/features/opencode-skill-loader/discover-worker.ts b/src/features/opencode-skill-loader/discover-worker.ts
index 1874414e..6a1031d4 100644
--- a/src/features/opencode-skill-loader/discover-worker.ts
+++ b/src/features/opencode-skill-loader/discover-worker.ts
@@ -18,8 +18,6 @@ interface WorkerOutputError {
   error: { message: string; stack?: string }
 }
 
-type WorkerOutput = WorkerOutputSuccess | WorkerOutputError
-
 const { signal } = workerData as { signal: Int32Array }
 
 if (!parentPort) {
diff --git a/src/hooks/context-window-monitor.ts b/src/hooks/context-window-monitor.ts
index b617ad82..83b29123 100644
--- a/src/hooks/context-window-monitor.ts
+++ b/src/hooks/context-window-monitor.ts
@@ -27,7 +27,7 @@ interface CachedTokenState {
   tokens: TokenInfo
 }
 
-export function createContextWindowMonitorHook(ctx: PluginInput) {
+export function createContextWindowMonitorHook(_ctx: PluginInput) {
   const remindedSessions = new Set<string>()
   const tokenCache = new Map<string, CachedTokenState>()
 
diff --git a/src/plugin-config.ts b/src/plugin-config.ts
index bc96b281..fa22c5b3 100644
--- a/src/plugin-config.ts
+++ b/src/plugin-config.ts
@@ -49,7 +49,7 @@ export function parseConfigPartially(
 
 export function loadConfigFromPath(
   configPath: string,
-  ctx: unknown
+  _ctx: unknown
 ): OhMyOpenCodeConfig | null {
   try {
     if (fs.existsSync(configPath)) {
diff --git a/src/tools/delegate-task/categories.ts b/src/tools/delegate-task/categories.ts
index f3aa41f3..af6f6410 100644
--- a/src/tools/delegate-task/categories.ts
+++ b/src/tools/delegate-task/categories.ts
@@ -26,7 +26,7 @@ export function resolveCategoryConfig(
   categoryName: string,
   options: ResolveCategoryConfigOptions
 ): ResolveCategoryConfigResult | null {
-  const { userCategories, inheritedModel, systemDefaultModel, availableModels } = options
+  const { userCategories, inheritedModel: _inheritedModel, systemDefaultModel, availableModels } = options
 
   const defaultConfig = DEFAULT_CATEGORIES[categoryName]
   const userConfig = userCategories?.[categoryName]
diff --git a/src/tools/lsp/diagnostics-tool.ts b/src/tools/lsp/diagnostics-tool.ts
index b9d944e4..ffd4fb08 100644
--- a/src/tools/lsp/diagnostics-tool.ts
+++ b/src/tools/lsp/diagnostics-tool.ts
@@ -14,7 +14,7 @@ export const lsp_diagnostics: ToolDefinition = tool({
       .optional()
       .describe("Filter by severity level"),
   },
-  execute: async (args, context) => {
+  execute: async (args, _context) => {
     try {
       const result = await withLspClient(args.filePath, async (client) => {
         return (await client.diagnostics(args.filePath)) as { items?: Diagnostic[] } | Diagnostic[] | null
diff --git a/src/tools/lsp/find-references-tool.ts b/src/tools/lsp/find-references-tool.ts
index b9b93556..744e52e5 100644
--- a/src/tools/lsp/find-references-tool.ts
+++ b/src/tools/lsp/find-references-tool.ts
@@ -13,7 +13,7 @@ export const lsp_find_references: ToolDefinition = tool({
     character: tool.schema.number().min(0).describe("0-based"),
     includeDeclaration: tool.schema.boolean().optional().describe("Include the declaration itself"),
   },
-  execute: async (args, context) => {
+  execute: async (args, _context) => {
     try {
       const result = await withLspClient(args.filePath, async (client) => {
         return (await client.references(args.filePath, args.line, args.character, args.includeDeclaration ?? true)) as
diff --git a/src/tools/lsp/goto-definition-tool.ts b/src/tools/lsp/goto-definition-tool.ts
index 2cdf76fb..c72ebd4c 100644
--- a/src/tools/lsp/goto-definition-tool.ts
+++ b/src/tools/lsp/goto-definition-tool.ts
@@ -11,7 +11,7 @@ export const lsp_goto_definition: ToolDefinition = tool({
     line: tool.schema.number().min(1).describe("1-based"),
     character: tool.schema.number().min(0).describe("0-based"),
   },
-  execute: async (args, context) => {
+  execute: async (args, _context) => {
     try {
       const result = await withLspClient(args.filePath, async (client) => {
         return (await client.definition(args.filePath, args.line, args.character)) as
diff --git a/src/tools/lsp/rename-tools.ts b/src/tools/lsp/rename-tools.ts
index d29ce205..d49cfebb 100644
--- a/src/tools/lsp/rename-tools.ts
+++ b/src/tools/lsp/rename-tools.ts
@@ -12,7 +12,7 @@ export const lsp_prepare_rename: ToolDefinition = tool({
     line: tool.schema.number().min(1).describe("1-based"),
     character: tool.schema.number().min(0).describe("0-based"),
   },
-  execute: async (args, context) => {
+  execute: async (args, _context) => {
     try {
       const result = await withLspClient(args.filePath, async (client) => {
         return (await client.prepareRename(args.filePath, args.line, args.character)) as
@@ -37,7 +37,7 @@ export const lsp_rename: ToolDefinition = tool({
     character: tool.schema.number().min(0).describe("0-based"),
     newName: tool.schema.string().describe("New symbol name"),
   },
-  execute: async (args, context) => {
+  execute: async (args, _context) => {
     try {
       const edit = await withLspClient(args.filePath, async (client) => {
         return (await client.rename(args.filePath, args.line, args.character, args.newName)) as WorkspaceEdit | null
diff --git a/src/tools/lsp/symbols-tool.ts b/src/tools/lsp/symbols-tool.ts
index eba177ef..0c4ca130 100644
--- a/src/tools/lsp/symbols-tool.ts
+++ b/src/tools/lsp/symbols-tool.ts
@@ -17,7 +17,7 @@ export const lsp_symbols: ToolDefinition = tool({
     query: tool.schema.string().optional().describe("Symbol name to search (required for workspace scope)"),
     limit: tool.schema.number().optional().describe("Max results (default 50)"),
   },
-  execute: async (args, context) => {
+  execute: async (args, _context) => {
     try {
       const scope = args.scope ?? "document"
 
diff --git a/src/tools/task/task-get.ts b/src/tools/task/task-get.ts
index 94ac9d89..4532d9d4 100644
--- a/src/tools/task/task-get.ts
+++ b/src/tools/task/task-get.ts
@@ -1,7 +1,6 @@
 import { tool, type ToolDefinition } from "@opencode-ai/plugin/tool"
 import { join } from "path"
 import type { OhMyOpenCodeConfig } from "../../config/schema"
-import type { TaskGetInput } from "./types"
 import { TaskGetInputSchema, TaskObjectSchema } from "./types"
 import { getTaskDir, readJsonSafe } from "../../features/claude-tasks/storage"
 
diff --git a/src/tools/task/task-update.ts b/src/tools/task/task-update.ts
index d529c408..b56bd9ad 100644
--- a/src/tools/task/task-update.ts
+++ b/src/tools/task/task-update.ts
@@ -2,7 +2,6 @@ import type { PluginInput } from "@opencode-ai/plugin";
 import { tool, type ToolDefinition } from "@opencode-ai/plugin/tool";
 import { join } from "path";
 import type { OhMyOpenCodeConfig } from "../../config/schema";
-import type { TaskObject, TaskUpdateInput } from "./types";
 import { TaskObjectSchema, TaskUpdateInputSchema } from "./types";
 import {
   getTaskDir,