fix(agents): pass available agents to Sisyphus for dynamic prompt sections (#411) (#414)

Pass available agent metadata to createSisyphusAgent so the delegation table
and other dynamic prompt sections are populated instead of being empty.

Root cause: buildAgent() only passed `model` to createSisyphusAgent, but not
`availableAgents`. This caused the delegation table, tool selection table, and
other dynamic sections to be built with empty arrays.

Fix:
1. Import all agent metadata exports (*_PROMPT_METADATA)
2. Create agentMetadata map
3. Build non-Sisyphus agents first, collecting AvailableAgent[]
4. Pass availableAgents to createSisyphusAgent

🤖 Generated with assistance of OhMyOpenCode (https://github.com/code-yeongyu/oh-my-opencode)

src/agents/utils.ts

@@ -1,12 +1,13 @@
 import type { AgentConfig } from "@opencode-ai/sdk"
-import type { BuiltinAgentName, AgentOverrideConfig, AgentOverrides, AgentFactory } from "./types"
+import type { BuiltinAgentName, AgentOverrideConfig, AgentOverrides, AgentFactory, AgentPromptMetadata } from "./types"
 import { createSisyphusAgent } from "./sisyphus"
-import { createOracleAgent } from "./oracle"
+import { createOracleAgent, ORACLE_PROMPT_METADATA } from "./oracle"
-import { createLibrarianAgent } from "./librarian"
+import { createLibrarianAgent, LIBRARIAN_PROMPT_METADATA } from "./librarian"
-import { createExploreAgent } from "./explore"
+import { createExploreAgent, EXPLORE_PROMPT_METADATA } from "./explore"
-import { createFrontendUiUxEngineerAgent } from "./frontend-ui-ux-engineer"
+import { createFrontendUiUxEngineerAgent, FRONTEND_PROMPT_METADATA } from "./frontend-ui-ux-engineer"
-import { createDocumentWriterAgent } from "./document-writer"
+import { createDocumentWriterAgent, DOCUMENT_WRITER_PROMPT_METADATA } from "./document-writer"
-import { createMultimodalLookerAgent } from "./multimodal-looker"
+import { createMultimodalLookerAgent, MULTIMODAL_LOOKER_PROMPT_METADATA } from "./multimodal-looker"
+import type { AvailableAgent } from "./sisyphus-prompt-builder"
 import { deepMerge } from "../shared"
 
 type AgentSource = AgentFactory | AgentConfig
@@ -21,6 +22,19 @@ const agentSources: Record<BuiltinAgentName, AgentSource> = {
   "multimodal-looker": createMultimodalLookerAgent,
 }
 
+/**
+ * Metadata for each agent, used to build Sisyphus's dynamic prompt sections
+ * (Delegation Table, Tool Selection, Key Triggers, etc.)
+ */
+const agentMetadata: Partial<Record<BuiltinAgentName, AgentPromptMetadata>> = {
+  oracle: ORACLE_PROMPT_METADATA,
+  librarian: LIBRARIAN_PROMPT_METADATA,
+  explore: EXPLORE_PROMPT_METADATA,
+  "frontend-ui-ux-engineer": FRONTEND_PROMPT_METADATA,
+  "document-writer": DOCUMENT_WRITER_PROMPT_METADATA,
+  "multimodal-looker": MULTIMODAL_LOOKER_PROMPT_METADATA,
+}
+
 function isFactory(source: AgentSource): source is AgentFactory {
   return typeof source === "function"
 }
@@ -76,20 +90,20 @@ export function createBuiltinAgents(
   systemDefaultModel?: string
 ): Record<string, AgentConfig> {
   const result: Record<string, AgentConfig> = {}
+  const availableAgents: AvailableAgent[] = []
 
   for (const [name, source] of Object.entries(agentSources)) {
     const agentName = name as BuiltinAgentName
 
-    if (disabledAgents.includes(agentName)) {
+    if (agentName === "Sisyphus") continue
-      continue
+    if (disabledAgents.includes(agentName)) continue
-    }
 
     const override = agentOverrides[agentName]
-    const model = override?.model ?? (agentName === "Sisyphus" ? systemDefaultModel : undefined)
+    const model = override?.model
 
     let config = buildAgent(source, model)
 
-    if ((agentName === "Sisyphus" || agentName === "librarian") && directory && config.prompt) {
+    if (agentName === "librarian" && directory && config.prompt) {
       const envContext = createEnvContext()
       config = { ...config, prompt: config.prompt + envContext }
     }
@@ -99,6 +113,33 @@ export function createBuiltinAgents(
     }
 
     result[name] = config
+
+    const metadata = agentMetadata[agentName]
+    if (metadata) {
+      availableAgents.push({
+        name: agentName,
+        description: config.description ?? "",
+        metadata,
+      })
+    }
+  }
+
+  if (!disabledAgents.includes("Sisyphus")) {
+    const sisyphusOverride = agentOverrides["Sisyphus"]
+    const sisyphusModel = sisyphusOverride?.model ?? systemDefaultModel
+
+    let sisyphusConfig = createSisyphusAgent(sisyphusModel, availableAgents)
+
+    if (directory && sisyphusConfig.prompt) {
+      const envContext = createEnvContext()
+      sisyphusConfig = { ...sisyphusConfig, prompt: sisyphusConfig.prompt + envContext }
+    }
+
+    if (sisyphusOverride) {
+      sisyphusConfig = mergeAgentConfig(sisyphusConfig, sisyphusOverride)
+    }
+
+    result["Sisyphus"] = sisyphusConfig
   }
 
   return result