refactor(hooks): drop no-op directory injector callbacks

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/hooks/directory-agents-injector/hook.ts

@@ -16,8 +16,10 @@ interface ToolExecuteOutput {
   metadata: unknown;
 }
 
-interface ToolExecuteBeforeOutput {
-  args: unknown;
+interface DirectoryAgentsInjectorHook {
+  "tool.execute.before"?: (input: ToolExecuteInput, output: { args: unknown }) => Promise<void>;
+  "tool.execute.after": (input: ToolExecuteInput, output: ToolExecuteOutput) => Promise<void>;
+  event: (input: EventInput) => Promise<void>;
 }
 
 interface EventInput {
@@ -30,7 +32,7 @@ interface EventInput {
 export function createDirectoryAgentsInjectorHook(
   ctx: PluginInput,
   modelCacheState?: { anthropicContext1MEnabled: boolean },
-) {
+): DirectoryAgentsInjectorHook {
   const sessionCaches = new Map<string, Set<string>>();
   const truncator = createDynamicTruncator(ctx, modelCacheState);
 
@@ -50,14 +52,6 @@ export function createDirectoryAgentsInjectorHook(
     }
   };
 
-  const toolExecuteBefore = async (
-    input: ToolExecuteInput,
-    output: ToolExecuteBeforeOutput,
-  ): Promise<void> => {
-    void input;
-    void output;
-  };
-
   const eventHandler = async ({ event }: EventInput) => {
     const props = event.properties as Record<string, unknown> | undefined;
 
@@ -80,7 +74,6 @@ export function createDirectoryAgentsInjectorHook(
   };
 
   return {
-    "tool.execute.before": toolExecuteBefore,
     "tool.execute.after": toolExecuteAfter,
     event: eventHandler,
   };

src/hooks/directory-readme-injector/hook.ts

@@ -16,8 +16,10 @@ interface ToolExecuteOutput {
   metadata: unknown;
 }
 
-interface ToolExecuteBeforeOutput {
-  args: unknown;
+interface DirectoryReadmeInjectorHook {
+  "tool.execute.before"?: (input: ToolExecuteInput, output: { args: unknown }) => Promise<void>;
+  "tool.execute.after": (input: ToolExecuteInput, output: ToolExecuteOutput) => Promise<void>;
+  event: (input: EventInput) => Promise<void>;
 }
 
 interface EventInput {
@@ -30,7 +32,7 @@ interface EventInput {
 export function createDirectoryReadmeInjectorHook(
   ctx: PluginInput,
   modelCacheState?: { anthropicContext1MEnabled: boolean },
-) {
+): DirectoryReadmeInjectorHook {
   const sessionCaches = new Map<string, Set<string>>();
   const truncator = createDynamicTruncator(ctx, modelCacheState);
 
@@ -50,14 +52,6 @@ export function createDirectoryReadmeInjectorHook(
     }
   };
 
-  const toolExecuteBefore = async (
-    input: ToolExecuteInput,
-    output: ToolExecuteBeforeOutput,
-  ): Promise<void> => {
-    void input;
-    void output;
-  };
-
   const eventHandler = async ({ event }: EventInput) => {
     const props = event.properties as Record<string, unknown> | undefined;
 
@@ -80,7 +74,6 @@ export function createDirectoryReadmeInjectorHook(
   };
 
   return {
-    "tool.execute.before": toolExecuteBefore,
     "tool.execute.after": toolExecuteAfter,
     event: eventHandler,
   };