Files
oh-my-openagent/src/tools/delegate-task/executor.ts
YeonGyu-Kim bdaa8fc6c1 refactor(tools/delegate-task): enhance skill resolution and type safety
- Add improved type definitions for skill resolution
- Enhance executor with better type safety for delegation flows
- Add comprehensive test coverage for delegation tool behavior
- Improve code organization for skill resolver integration

🤖 Generated with assistance of OhMyOpenCode
2026-02-08 18:41:39 +09:00

993 lines
34 KiB
TypeScript

import type { BackgroundManager } from "../../features/background-agent"
import type { CategoriesConfig, GitMasterConfig, BrowserAutomationProvider, AgentOverrides } from "../../config/schema"
import type { ModelFallbackInfo } from "../../features/task-toast-manager/types"
import type { DelegateTaskArgs, ToolContextWithMetadata, OpencodeClient } from "./types"
import { DEFAULT_CATEGORIES, CATEGORY_DESCRIPTIONS, isPlanFamily } from "./constants"
import { getTimingConfig } from "./timing"
import { parseModelString, getMessageDir, formatDuration, formatDetailedError } from "./helpers"
import { resolveCategoryConfig } from "./categories"
import { buildSystemContent } from "./prompt-builder"
import { findNearestMessageWithFields, findFirstMessageWithAgent } from "../../features/hook-message-injector"
import { resolveMultipleSkillsAsync } from "../../features/opencode-skill-loader/skill-content"
import { discoverSkills } from "../../features/opencode-skill-loader"
import { getTaskToastManager } from "../../features/task-toast-manager"
import { subagentSessions, getSessionAgent } from "../../features/claude-code-session-state"
import { log, getAgentToolRestrictions, resolveModelPipeline, promptWithModelSuggestionRetry, promptSyncWithModelSuggestionRetry } from "../../shared"
import { fetchAvailableModels, isModelAvailable } from "../../shared/model-availability"
import * as connectedProvidersCache from "../../shared/connected-providers-cache"
import { AGENT_MODEL_REQUIREMENTS, CATEGORY_MODEL_REQUIREMENTS } from "../../shared/model-requirements"
import { storeToolMetadata } from "../../features/tool-metadata-store"
const SISYPHUS_JUNIOR_AGENT = "sisyphus-junior"
function resolveToolCallID(ctx: ToolContextWithMetadata): string | undefined {
if (typeof ctx.callID === "string" && ctx.callID.trim() !== "") {
return ctx.callID
}
if (typeof ctx.callId === "string" && ctx.callId.trim() !== "") {
return ctx.callId
}
if (typeof ctx.call_id === "string" && ctx.call_id.trim() !== "") {
return ctx.call_id
}
return undefined
}
export interface ExecutorContext {
manager: BackgroundManager
client: OpencodeClient
directory: string
connectedProvidersOverride?: string[] | null
availableModelsOverride?: Set<string>
userCategories?: CategoriesConfig
gitMasterConfig?: GitMasterConfig
sisyphusJuniorModel?: string
browserProvider?: BrowserAutomationProvider
agentOverrides?: AgentOverrides
onSyncSessionCreated?: (event: { sessionID: string; parentID: string; title: string }) => Promise<void>
}
export interface ParentContext {
sessionID: string
messageID: string
agent?: string
model?: { providerID: string; modelID: string; variant?: string }
}
interface SessionMessage {
info?: { role?: string; time?: { created?: number }; agent?: string; model?: { providerID: string; modelID: string }; modelID?: string; providerID?: string; variant?: string }
parts?: Array<{ type?: string; text?: string }>
}
export async function resolveSkillContent(
skills: string[],
options: { gitMasterConfig?: GitMasterConfig; browserProvider?: BrowserAutomationProvider, disabledSkills?: Set<string> }
): Promise<{ content: string | undefined; error: string | null }> {
if (skills.length === 0) {
return { content: undefined, error: null }
}
const { resolved, notFound } = await resolveMultipleSkillsAsync(skills, options)
if (notFound.length > 0) {
const allSkills = await discoverSkills({ includeClaudeCodePaths: true })
const available = allSkills.map(s => s.name).join(", ")
return { content: undefined, error: `Skills not found: ${notFound.join(", ")}. Available: ${available}` }
}
return { content: Array.from(resolved.values()).join("\n\n"), error: null }
}
export function resolveParentContext(ctx: ToolContextWithMetadata): ParentContext {
const messageDir = getMessageDir(ctx.sessionID)
const prevMessage = messageDir ? findNearestMessageWithFields(messageDir) : null
const firstMessageAgent = messageDir ? findFirstMessageWithAgent(messageDir) : null
const sessionAgent = getSessionAgent(ctx.sessionID)
const parentAgent = ctx.agent ?? sessionAgent ?? firstMessageAgent ?? prevMessage?.agent
log("[task] parentAgent resolution", {
sessionID: ctx.sessionID,
messageDir,
ctxAgent: ctx.agent,
sessionAgent,
firstMessageAgent,
prevMessageAgent: prevMessage?.agent,
resolvedParentAgent: parentAgent,
})
const parentModel = prevMessage?.model?.providerID && prevMessage?.model?.modelID
? {
providerID: prevMessage.model.providerID,
modelID: prevMessage.model.modelID,
...(prevMessage.model.variant ? { variant: prevMessage.model.variant } : {}),
}
: undefined
return {
sessionID: ctx.sessionID,
messageID: ctx.messageID,
agent: parentAgent,
model: parentModel,
}
}
export async function executeBackgroundContinuation(
args: DelegateTaskArgs,
ctx: ToolContextWithMetadata,
executorCtx: ExecutorContext,
parentContext: ParentContext
): Promise<string> {
const { manager } = executorCtx
try {
const task = await manager.resume({
sessionId: args.session_id!,
prompt: args.prompt,
parentSessionID: parentContext.sessionID,
parentMessageID: parentContext.messageID,
parentModel: parentContext.model,
parentAgent: parentContext.agent,
})
const bgContMeta = {
title: `Continue: ${task.description}`,
metadata: {
prompt: args.prompt,
agent: task.agent,
load_skills: args.load_skills,
description: args.description,
run_in_background: args.run_in_background,
sessionId: task.sessionID,
command: args.command,
},
}
await ctx.metadata?.(bgContMeta)
const bgContCallID = resolveToolCallID(ctx)
if (bgContCallID) storeToolMetadata(ctx.sessionID, bgContCallID, bgContMeta)
return `Background task continued.
Task ID: ${task.id}
Description: ${task.description}
Agent: ${task.agent}
Status: ${task.status}
Agent continues with full previous context preserved.
Use \`background_output\` with task_id="${task.id}" to check progress.
<task_metadata>
session_id: ${task.sessionID}
</task_metadata>`
} catch (error) {
return formatDetailedError(error, {
operation: "Continue background task",
args,
sessionID: args.session_id,
})
}
}
export async function executeSyncContinuation(
args: DelegateTaskArgs,
ctx: ToolContextWithMetadata,
executorCtx: ExecutorContext
): Promise<string> {
const { client } = executorCtx
const toastManager = getTaskToastManager()
const taskId = `resume_sync_${args.session_id!.slice(0, 8)}`
const startTime = new Date()
if (toastManager) {
toastManager.addTask({
id: taskId,
description: args.description,
agent: "continue",
isBackground: false,
})
}
const syncContMeta = {
title: `Continue: ${args.description}`,
metadata: {
prompt: args.prompt,
load_skills: args.load_skills,
description: args.description,
run_in_background: args.run_in_background,
sessionId: args.session_id,
sync: true,
command: args.command,
},
}
await ctx.metadata?.(syncContMeta)
const syncContCallID = resolveToolCallID(ctx)
if (syncContCallID) storeToolMetadata(ctx.sessionID, syncContCallID, syncContMeta)
try {
let resumeAgent: string | undefined
let resumeModel: { providerID: string; modelID: string } | undefined
let resumeVariant: string | undefined
try {
const messagesResp = await client.session.messages({ path: { id: args.session_id! } })
const messages = (messagesResp.data ?? []) as SessionMessage[]
for (let i = messages.length - 1; i >= 0; i--) {
const info = messages[i].info
if (info?.agent || info?.model || (info?.modelID && info?.providerID)) {
resumeAgent = info.agent
resumeModel = info.model ?? (info.providerID && info.modelID ? { providerID: info.providerID, modelID: info.modelID } : undefined)
resumeVariant = info.variant
break
}
}
} catch {
const resumeMessageDir = getMessageDir(args.session_id!)
const resumeMessage = resumeMessageDir ? findNearestMessageWithFields(resumeMessageDir) : null
resumeAgent = resumeMessage?.agent
resumeModel = resumeMessage?.model?.providerID && resumeMessage?.model?.modelID
? { providerID: resumeMessage.model.providerID, modelID: resumeMessage.model.modelID }
: undefined
resumeVariant = resumeMessage?.model?.variant
}
await promptSyncWithModelSuggestionRetry(client, {
path: { id: args.session_id! },
body: {
...(resumeAgent !== undefined ? { agent: resumeAgent } : {}),
...(resumeModel !== undefined ? { model: resumeModel } : {}),
...(resumeVariant !== undefined ? { variant: resumeVariant } : {}),
tools: {
...(resumeAgent ? getAgentToolRestrictions(resumeAgent) : {}),
task: false,
call_omo_agent: true,
question: false,
},
parts: [{ type: "text", text: args.prompt }],
},
})
} catch (promptError) {
if (toastManager) {
toastManager.removeTask(taskId)
}
const errorMessage = promptError instanceof Error ? promptError.message : String(promptError)
return `Failed to send continuation prompt: ${errorMessage}\n\nSession ID: ${args.session_id}`
}
const messagesResult = await client.session.messages({
path: { id: args.session_id! },
})
if (messagesResult.error) {
if (toastManager) {
toastManager.removeTask(taskId)
}
return `Error fetching result: ${messagesResult.error}\n\nSession ID: ${args.session_id}`
}
const messages = ((messagesResult as { data?: unknown }).data ?? messagesResult) as SessionMessage[]
const assistantMessages = messages
.filter((m) => m.info?.role === "assistant")
.sort((a, b) => (b.info?.time?.created ?? 0) - (a.info?.time?.created ?? 0))
const lastMessage = assistantMessages[0]
if (toastManager) {
toastManager.removeTask(taskId)
}
if (!lastMessage) {
return `No assistant response found.\n\nSession ID: ${args.session_id}`
}
const textParts = lastMessage?.parts?.filter((p) => p.type === "text" || p.type === "reasoning") ?? []
const textContent = textParts.map((p) => p.text ?? "").filter(Boolean).join("\n")
const duration = formatDuration(startTime)
return `Task continued and completed in ${duration}.
---
${textContent || "(No text output)"}
<task_metadata>
session_id: ${args.session_id}
</task_metadata>`
}
export async function executeUnstableAgentTask(
args: DelegateTaskArgs,
ctx: ToolContextWithMetadata,
executorCtx: ExecutorContext,
parentContext: ParentContext,
agentToUse: string,
categoryModel: { providerID: string; modelID: string; variant?: string } | undefined,
systemContent: string | undefined,
actualModel: string | undefined
): Promise<string> {
const { manager, client } = executorCtx
try {
const task = await manager.launch({
description: args.description,
prompt: args.prompt,
agent: agentToUse,
parentSessionID: parentContext.sessionID,
parentMessageID: parentContext.messageID,
parentModel: parentContext.model,
parentAgent: parentContext.agent,
model: categoryModel,
skills: args.load_skills.length > 0 ? args.load_skills : undefined,
skillContent: systemContent,
category: args.category,
})
const timing = getTimingConfig()
const waitStart = Date.now()
let sessionID = task.sessionID
while (!sessionID && Date.now() - waitStart < timing.WAIT_FOR_SESSION_TIMEOUT_MS) {
if (ctx.abort?.aborted) {
return `Task aborted while waiting for session to start.\n\nTask ID: ${task.id}`
}
await new Promise(resolve => setTimeout(resolve, timing.WAIT_FOR_SESSION_INTERVAL_MS))
const updated = manager.getTask(task.id)
sessionID = updated?.sessionID
}
if (!sessionID) {
return formatDetailedError(new Error(`Task failed to start within timeout (30s). Task ID: ${task.id}, Status: ${task.status}`), {
operation: "Launch monitored background task",
args,
agent: agentToUse,
category: args.category,
})
}
const bgTaskMeta = {
title: args.description,
metadata: {
prompt: args.prompt,
agent: agentToUse,
category: args.category,
load_skills: args.load_skills,
description: args.description,
run_in_background: args.run_in_background,
sessionId: sessionID,
command: args.command,
},
}
await ctx.metadata?.(bgTaskMeta)
const bgTaskCallID = resolveToolCallID(ctx)
if (bgTaskCallID) storeToolMetadata(ctx.sessionID, bgTaskCallID, bgTaskMeta)
const startTime = new Date()
const timingCfg = getTimingConfig()
const pollStart = Date.now()
let lastMsgCount = 0
let stablePolls = 0
while (Date.now() - pollStart < timingCfg.MAX_POLL_TIME_MS) {
if (ctx.abort?.aborted) {
return `Task aborted (was running in background mode).\n\nSession ID: ${sessionID}`
}
await new Promise(resolve => setTimeout(resolve, timingCfg.POLL_INTERVAL_MS))
const statusResult = await client.session.status()
const allStatuses = (statusResult.data ?? {}) as Record<string, { type: string }>
const sessionStatus = allStatuses[sessionID]
if (sessionStatus && sessionStatus.type !== "idle") {
stablePolls = 0
lastMsgCount = 0
continue
}
if (Date.now() - pollStart < timingCfg.MIN_STABILITY_TIME_MS) continue
const messagesCheck = await client.session.messages({ path: { id: sessionID } })
const msgs = ((messagesCheck as { data?: unknown }).data ?? messagesCheck) as Array<unknown>
const currentMsgCount = msgs.length
if (currentMsgCount === lastMsgCount) {
stablePolls++
if (stablePolls >= timingCfg.STABILITY_POLLS_REQUIRED) break
} else {
stablePolls = 0
lastMsgCount = currentMsgCount
}
}
const messagesResult = await client.session.messages({ path: { id: sessionID } })
const messages = ((messagesResult as { data?: unknown }).data ?? messagesResult) as SessionMessage[]
const assistantMessages = messages
.filter((m) => m.info?.role === "assistant")
.sort((a, b) => (b.info?.time?.created ?? 0) - (a.info?.time?.created ?? 0))
const lastMessage = assistantMessages[0]
if (!lastMessage) {
return `No assistant response found (task ran in background mode).\n\nSession ID: ${sessionID}`
}
const textParts = lastMessage?.parts?.filter((p) => p.type === "text" || p.type === "reasoning") ?? []
const textContent = textParts.map((p) => p.text ?? "").filter(Boolean).join("\n")
const duration = formatDuration(startTime)
return `SUPERVISED TASK COMPLETED SUCCESSFULLY
IMPORTANT: This model (${actualModel}) is marked as unstable/experimental.
Your run_in_background=false was automatically converted to background mode for reliability monitoring.
Duration: ${duration}
Agent: ${agentToUse}${args.category ? ` (category: ${args.category})` : ""}
MONITORING INSTRUCTIONS:
- The task was monitored and completed successfully
- If you observe this agent behaving erratically in future calls, actively monitor its progress
- Use background_cancel(task_id="...") to abort if the agent seems stuck or producing garbage output
- Do NOT retry automatically if you see this message - the task already succeeded
---
RESULT:
${textContent || "(No text output)"}
<task_metadata>
session_id: ${sessionID}
</task_metadata>`
} catch (error) {
return formatDetailedError(error, {
operation: "Launch monitored background task",
args,
agent: agentToUse,
category: args.category,
})
}
}
export async function executeBackgroundTask(
args: DelegateTaskArgs,
ctx: ToolContextWithMetadata,
executorCtx: ExecutorContext,
parentContext: ParentContext,
agentToUse: string,
categoryModel: { providerID: string; modelID: string; variant?: string } | undefined,
systemContent: string | undefined
): Promise<string> {
const { manager } = executorCtx
try {
const task = await manager.launch({
description: args.description,
prompt: args.prompt,
agent: agentToUse,
parentSessionID: parentContext.sessionID,
parentMessageID: parentContext.messageID,
parentModel: parentContext.model,
parentAgent: parentContext.agent,
model: categoryModel,
skills: args.load_skills.length > 0 ? args.load_skills : undefined,
skillContent: systemContent,
category: args.category,
})
// OpenCode TUI's `Task` tool UI calculates toolcalls by looking up
// `props.metadata.sessionId` and then counting tool parts in that session.
// BackgroundManager.launch() returns immediately (pending) before the session exists,
// so we must wait briefly for the session to be created to set metadata correctly.
const timing = getTimingConfig()
const waitStart = Date.now()
let sessionId = task.sessionID
while (!sessionId && Date.now() - waitStart < timing.WAIT_FOR_SESSION_TIMEOUT_MS) {
if (ctx.abort?.aborted) {
return `Task aborted while waiting for session to start.\n\nTask ID: ${task.id}`
}
await new Promise(resolve => setTimeout(resolve, timing.WAIT_FOR_SESSION_INTERVAL_MS))
const updated = manager.getTask(task.id)
sessionId = updated?.sessionID
}
const unstableMeta = {
title: args.description,
metadata: {
prompt: args.prompt,
agent: task.agent,
category: args.category,
load_skills: args.load_skills,
description: args.description,
run_in_background: args.run_in_background,
sessionId: sessionId ?? "pending",
command: args.command,
},
}
await ctx.metadata?.(unstableMeta)
const unstableCallID = resolveToolCallID(ctx)
if (unstableCallID) storeToolMetadata(ctx.sessionID, unstableCallID, unstableMeta)
return `Background task launched.
Task ID: ${task.id}
Description: ${task.description}
Agent: ${task.agent}${args.category ? ` (category: ${args.category})` : ""}
Status: ${task.status}
System notifies on completion. Use \`background_output\` with task_id="${task.id}" to check.
<task_metadata>
session_id: ${sessionId}
</task_metadata>`
} catch (error) {
return formatDetailedError(error, {
operation: "Launch background task",
args,
agent: agentToUse,
category: args.category,
})
}
}
export async function executeSyncTask(
args: DelegateTaskArgs,
ctx: ToolContextWithMetadata,
executorCtx: ExecutorContext,
parentContext: ParentContext,
agentToUse: string,
categoryModel: { providerID: string; modelID: string; variant?: string } | undefined,
systemContent: string | undefined,
modelInfo?: ModelFallbackInfo
): Promise<string> {
const { client, directory, onSyncSessionCreated } = executorCtx
const toastManager = getTaskToastManager()
let taskId: string | undefined
let syncSessionID: string | undefined
try {
const parentSession = client.session.get
? await client.session.get({ path: { id: parentContext.sessionID } }).catch(() => null)
: null
const parentDirectory = parentSession?.data?.directory ?? directory
const createResult = await client.session.create({
body: {
parentID: parentContext.sessionID,
title: `${args.description} (@${agentToUse} subagent)`,
permission: [
{ permission: "question", action: "deny" as const, pattern: "*" },
],
} as any,
query: {
directory: parentDirectory,
},
})
if (createResult.error) {
return `Failed to create session: ${createResult.error}`
}
const sessionID = createResult.data.id
syncSessionID = sessionID
subagentSessions.add(sessionID)
if (onSyncSessionCreated) {
log("[task] Invoking onSyncSessionCreated callback", { sessionID, parentID: parentContext.sessionID })
await onSyncSessionCreated({
sessionID,
parentID: parentContext.sessionID,
title: args.description,
}).catch((err) => {
log("[task] onSyncSessionCreated callback failed", { error: String(err) })
})
await new Promise(r => setTimeout(r, 200))
}
taskId = `sync_${sessionID.slice(0, 8)}`
const startTime = new Date()
if (toastManager) {
toastManager.addTask({
id: taskId,
description: args.description,
agent: agentToUse,
isBackground: false,
category: args.category,
skills: args.load_skills,
modelInfo,
})
}
const syncTaskMeta = {
title: args.description,
metadata: {
prompt: args.prompt,
agent: agentToUse,
category: args.category,
load_skills: args.load_skills,
description: args.description,
run_in_background: args.run_in_background,
sessionId: sessionID,
sync: true,
command: args.command,
},
}
await ctx.metadata?.(syncTaskMeta)
const syncTaskCallID = resolveToolCallID(ctx)
if (syncTaskCallID) storeToolMetadata(ctx.sessionID, syncTaskCallID, syncTaskMeta)
try {
const allowTask = isPlanFamily(agentToUse)
await promptSyncWithModelSuggestionRetry(client, {
path: { id: sessionID },
body: {
agent: agentToUse,
system: systemContent,
tools: {
task: allowTask,
call_omo_agent: true,
question: false,
},
parts: [{ type: "text", text: args.prompt }],
...(categoryModel ? { model: { providerID: categoryModel.providerID, modelID: categoryModel.modelID } } : {}),
...(categoryModel?.variant ? { variant: categoryModel.variant } : {}),
},
})
} catch (promptError) {
if (toastManager && taskId !== undefined) {
toastManager.removeTask(taskId)
}
const errorMessage = promptError instanceof Error ? promptError.message : String(promptError)
if (errorMessage.includes("agent.name") || errorMessage.includes("undefined")) {
return formatDetailedError(new Error(`Agent "${agentToUse}" not found. Make sure the agent is registered in your opencode.json or provided by a plugin.`), {
operation: "Send prompt to agent",
args,
sessionID,
agent: agentToUse,
category: args.category,
})
}
return formatDetailedError(promptError, {
operation: "Send prompt",
args,
sessionID,
agent: agentToUse,
category: args.category,
})
}
const messagesResult = await client.session.messages({
path: { id: sessionID },
})
if (messagesResult.error) {
return `Error fetching result: ${messagesResult.error}\n\nSession ID: ${sessionID}`
}
const messages = ((messagesResult as { data?: unknown }).data ?? messagesResult) as SessionMessage[]
const assistantMessages = messages
.filter((m) => m.info?.role === "assistant")
.sort((a, b) => (b.info?.time?.created ?? 0) - (a.info?.time?.created ?? 0))
const lastMessage = assistantMessages[0]
if (!lastMessage) {
return `No assistant response found.\n\nSession ID: ${sessionID}`
}
const textParts = lastMessage?.parts?.filter((p) => p.type === "text" || p.type === "reasoning") ?? []
const textContent = textParts.map((p) => p.text ?? "").filter(Boolean).join("\n")
const duration = formatDuration(startTime)
if (toastManager) {
toastManager.removeTask(taskId)
}
subagentSessions.delete(sessionID)
return `Task completed in ${duration}.
Agent: ${agentToUse}${args.category ? ` (category: ${args.category})` : ""}
---
${textContent || "(No text output)"}
<task_metadata>
session_id: ${sessionID}
</task_metadata>`
} catch (error) {
if (toastManager && taskId !== undefined) {
toastManager.removeTask(taskId)
}
if (syncSessionID) {
subagentSessions.delete(syncSessionID)
}
return formatDetailedError(error, {
operation: "Execute task",
args,
sessionID: syncSessionID,
agent: agentToUse,
category: args.category,
})
}
}
export interface CategoryResolutionResult {
agentToUse: string
categoryModel: { providerID: string; modelID: string; variant?: string } | undefined
categoryPromptAppend: string | undefined
modelInfo: ModelFallbackInfo | undefined
actualModel: string | undefined
isUnstableAgent: boolean
error?: string
}
export async function resolveCategoryExecution(
args: DelegateTaskArgs,
executorCtx: ExecutorContext,
inheritedModel: string | undefined,
systemDefaultModel: string | undefined
): Promise<CategoryResolutionResult> {
const { client, userCategories, sisyphusJuniorModel } = executorCtx
const connectedProviders = executorCtx.connectedProvidersOverride !== undefined
? executorCtx.connectedProvidersOverride
: connectedProvidersCache.readConnectedProvidersCache()
const availableModels = executorCtx.availableModelsOverride !== undefined
? executorCtx.availableModelsOverride
: await fetchAvailableModels(client, {
connectedProviders: connectedProviders ?? undefined,
})
const resolved = resolveCategoryConfig(args.category!, {
userCategories,
inheritedModel,
systemDefaultModel,
availableModels,
})
if (!resolved) {
return {
agentToUse: "",
categoryModel: undefined,
categoryPromptAppend: undefined,
modelInfo: undefined,
actualModel: undefined,
isUnstableAgent: false,
error: `Unknown category: "${args.category}". Available: ${Object.keys({ ...DEFAULT_CATEGORIES, ...userCategories }).join(", ")}`,
}
}
const requirement = CATEGORY_MODEL_REQUIREMENTS[args.category!]
let actualModel: string | undefined
let modelInfo: ModelFallbackInfo | undefined
let categoryModel: { providerID: string; modelID: string; variant?: string } | undefined
const overrideModel = sisyphusJuniorModel
const explicitCategoryModel = userCategories?.[args.category!]?.model
if (!requirement) {
// Precedence: explicit category model > sisyphus-junior default > category resolved model
// This keeps `sisyphus-junior.model` useful as a global default while allowing
// per-category overrides via `categories[category].model`.
actualModel = explicitCategoryModel ?? overrideModel ?? resolved.model
if (actualModel) {
modelInfo = explicitCategoryModel || overrideModel
? { model: actualModel, type: "user-defined", source: "override" }
: { model: actualModel, type: "system-default", source: "system-default" }
}
} else {
const resolution = resolveModelPipeline({
intent: {
userModel: explicitCategoryModel ?? overrideModel,
categoryDefaultModel: resolved.model,
},
constraints: { availableModels, connectedProviders },
policy: {
fallbackChain: requirement.fallbackChain,
systemDefaultModel,
},
})
if (resolution) {
const { model: resolvedModel, provenance, variant: resolvedVariant } = resolution
actualModel = resolvedModel
if (!parseModelString(actualModel)) {
return {
agentToUse: "",
categoryModel: undefined,
categoryPromptAppend: undefined,
modelInfo: undefined,
actualModel: undefined,
isUnstableAgent: false,
error: `Invalid model format "${actualModel}". Expected "provider/model" format (e.g., "anthropic/claude-sonnet-4-5").`,
}
}
let type: "user-defined" | "inherited" | "category-default" | "system-default"
const source = provenance
switch (provenance) {
case "override":
type = "user-defined"
break
case "category-default":
case "provider-fallback":
type = "category-default"
break
case "system-default":
type = "system-default"
break
}
modelInfo = { model: actualModel, type, source }
const parsedModel = parseModelString(actualModel)
const variantToUse = userCategories?.[args.category!]?.variant ?? resolvedVariant ?? resolved.config.variant
categoryModel = parsedModel
? (variantToUse ? { ...parsedModel, variant: variantToUse } : parsedModel)
: undefined
}
}
if (!categoryModel && actualModel) {
const parsedModel = parseModelString(actualModel)
categoryModel = parsedModel ?? undefined
}
const categoryPromptAppend = resolved.promptAppend || undefined
if (!categoryModel && !actualModel) {
const categoryNames = Object.keys({ ...DEFAULT_CATEGORIES, ...userCategories })
return {
agentToUse: "",
categoryModel: undefined,
categoryPromptAppend: undefined,
modelInfo: undefined,
actualModel: undefined,
isUnstableAgent: false,
error: `Model not configured for category "${args.category}".
Configure in one of:
1. OpenCode: Set "model" in opencode.json
2. Oh-My-OpenCode: Set category model in oh-my-opencode.json
3. Provider: Connect a provider with available models
Current category: ${args.category}
Available categories: ${categoryNames.join(", ")}`,
}
}
const unstableModel = actualModel?.toLowerCase()
const isUnstableAgent = resolved.config.is_unstable_agent === true || (unstableModel ? unstableModel.includes("gemini") || unstableModel.includes("minimax") : false)
return {
agentToUse: SISYPHUS_JUNIOR_AGENT,
categoryModel,
categoryPromptAppend,
modelInfo,
actualModel,
isUnstableAgent,
}
}
export async function resolveSubagentExecution(
args: DelegateTaskArgs,
executorCtx: ExecutorContext,
parentAgent: string | undefined,
categoryExamples: string
): Promise<{ agentToUse: string; categoryModel: { providerID: string; modelID: string; variant?: string } | undefined; error?: string }> {
const { client, agentOverrides } = executorCtx
if (!args.subagent_type?.trim()) {
return { agentToUse: "", categoryModel: undefined, error: `Agent name cannot be empty.` }
}
const agentName = args.subagent_type.trim()
if (agentName.toLowerCase() === SISYPHUS_JUNIOR_AGENT.toLowerCase()) {
return {
agentToUse: "",
categoryModel: undefined,
error: `Cannot use subagent_type="${SISYPHUS_JUNIOR_AGENT}" directly. Use category parameter instead (e.g., ${categoryExamples}).
Sisyphus-Junior is spawned automatically when you specify a category. Pick the appropriate category for your task domain.`,
}
}
if (isPlanFamily(agentName) && isPlanFamily(parentAgent)) {
return {
agentToUse: "",
categoryModel: undefined,
error: `You are a plan-family agent (plan/prometheus). You cannot delegate to other plan-family agents via task.
Create the work plan directly - that's your job as the planning agent.`,
}
}
let agentToUse = agentName
let categoryModel: { providerID: string; modelID: string; variant?: string } | undefined
try {
const agentsResult = await client.app.agents()
type AgentInfo = { name: string; mode?: "subagent" | "primary" | "all"; model?: { providerID: string; modelID: string } }
const agents = (agentsResult as { data?: AgentInfo[] }).data ?? agentsResult as unknown as AgentInfo[]
const callableAgents = agents.filter((a) => a.mode !== "primary")
const matchedAgent = callableAgents.find(
(agent) => agent.name.toLowerCase() === agentToUse.toLowerCase()
)
if (!matchedAgent) {
const isPrimaryAgent = agents
.filter((a) => a.mode === "primary")
.find((agent) => agent.name.toLowerCase() === agentToUse.toLowerCase())
if (isPrimaryAgent) {
return {
agentToUse: "",
categoryModel: undefined,
error: `Cannot call primary agent "${isPrimaryAgent.name}" via task. Primary agents are top-level orchestrators.`,
}
}
const availableAgents = callableAgents
.map((a) => a.name)
.sort()
.join(", ")
return {
agentToUse: "",
categoryModel: undefined,
error: `Unknown agent: "${agentToUse}". Available agents: ${availableAgents}`,
}
}
agentToUse = matchedAgent.name
const agentNameLower = agentToUse.toLowerCase()
const agentOverride = agentOverrides?.[agentNameLower as keyof typeof agentOverrides]
?? (agentOverrides ? Object.entries(agentOverrides).find(([key]) => key.toLowerCase() === agentNameLower)?.[1] : undefined)
const agentRequirement = AGENT_MODEL_REQUIREMENTS[agentNameLower]
if (agentOverride?.model || agentRequirement) {
const connectedProviders = executorCtx.connectedProvidersOverride !== undefined
? executorCtx.connectedProvidersOverride
: connectedProvidersCache.readConnectedProvidersCache()
const availableModels = executorCtx.availableModelsOverride !== undefined
? executorCtx.availableModelsOverride
: await fetchAvailableModels(client, {
connectedProviders: connectedProviders ?? undefined,
})
const matchedAgentModelStr = matchedAgent.model
? `${matchedAgent.model.providerID}/${matchedAgent.model.modelID}`
: undefined
const resolution = resolveModelPipeline({
intent: {
userModel: agentOverride?.model,
categoryDefaultModel: matchedAgentModelStr,
},
constraints: { availableModels, connectedProviders },
policy: {
fallbackChain: agentRequirement?.fallbackChain,
systemDefaultModel: undefined,
},
})
if (resolution) {
const parsed = parseModelString(resolution.model)
if (parsed) {
const variantToUse = agentOverride?.variant ?? resolution.variant
categoryModel = variantToUse ? { ...parsed, variant: variantToUse } : parsed
}
}
} else if (matchedAgent.model) {
categoryModel = matchedAgent.model
}
} catch {
// Proceed anyway - session.prompt will fail with clearer error if agent doesn't exist
}
return { agentToUse, categoryModel }
}