refactor(athena): remove athena_council from plugin wiring

Drop the barrel export, tool-registry registration, and agent-tool-restriction entry for the deleted athena_council tool.

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

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

src/plugin/tool-registry.ts

@@ -13,7 +13,6 @@ import {
   builtinTools,
   createBackgroundTools,
   createCallOmoAgent,
-  createAthenaCouncilTool,
   createSwitchAgentTool,
   createLookAt,
   createSkillMcpTool,
@@ -173,11 +172,6 @@ export function createToolRegistry(args: {
     pluginConfig.agents,
     pluginConfig.categories,
   )
-  const athenaCouncilConfig = pluginConfig.agents?.athena?.council
-  const athenaCouncilTool = createAthenaCouncilTool({
-    backgroundManager: managers.backgroundManager,
-    councilConfig: athenaCouncilConfig,
-  })
 
   const isMultimodalLookerEnabled = !(pluginConfig.disabled_agents ?? []).some(
     (agent) => agent.toLowerCase() === "multimodal-looker",
@@ -274,7 +268,6 @@ export function createToolRegistry(args: {
     ...factories.createSessionManagerTools(ctx),
     ...backgroundTools,
     call_omo_agent: callOmoAgent,
-    athena_council: athenaCouncilTool,
     switch_agent: createSwitchAgentTool({
       client: ctx.client,
     }),

src/shared/agent-tool-restrictions.ts

@@ -58,7 +58,6 @@ const AGENT_RESTRICTIONS: Record<string, Record<string, boolean>> = {
     edit: false,
     task: false,
     call_omo_agent: false,
-    athena_council: false,
   },
 }
 

src/tools/index.ts

@@ -36,7 +36,6 @@ import type { BackgroundManager } from "../features/background-agent"
 type OpencodeClient = PluginInput["client"]
 
 export { createCallOmoAgent } from "./call-omo-agent"
-export { createAthenaCouncilTool } from "./athena-council"
 export { createLookAt } from "./look-at"
 export { createDelegateTask } from "./delegate-task"
 export { createSwitchAgentTool } from "./switch-agent"