YeonGyu-Kim fff565b5af feat(tools): add sisyphus_task tool for category-based delegation
Add sisyphus_task tool supporting:
- Category-based task delegation (visual, business-logic, etc.)
- Direct agent targeting
- Background execution with resume capability
- DEFAULT_CATEGORIES configuration

Includes test coverage.

🤖 GENERATED WITH ASSISTANCE OF [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)
2026-01-08 23:07:04 +09:00

313 lines
11 KiB
TypeScript

import { tool, type PluginInput, type ToolDefinition } from "@opencode-ai/plugin"
import { existsSync, readdirSync } from "node:fs"
import { join } from "node:path"
import type { BackgroundManager } from "../../features/background-agent"
import type { SisyphusTaskArgs } from "./types"
import type { CategoryConfig, CategoriesConfig } from "../../config/schema"
import { SISYPHUS_TASK_DESCRIPTION, DEFAULT_CATEGORIES, CATEGORY_PROMPT_APPENDS } from "./constants"
import { findNearestMessageWithFields, MESSAGE_STORAGE } from "../../features/hook-message-injector"
import { resolveMultipleSkills } from "../../features/opencode-skill-loader/skill-content"
import { createBuiltinSkills } from "../../features/builtin-skills/skills"
type OpencodeClient = PluginInput["client"]
const SISYPHUS_JUNIOR_AGENT = "Sisyphus-Junior"
const CATEGORY_EXAMPLES = Object.keys(DEFAULT_CATEGORIES).map(k => `'${k}'`).join(", ")
function parseModelString(model: string): { providerID: string; modelID: string } | undefined {
const parts = model.split("/")
if (parts.length >= 2) {
return { providerID: parts[0], modelID: parts.slice(1).join("/") }
}
return undefined
}
function getMessageDir(sessionID: string): string | null {
if (!existsSync(MESSAGE_STORAGE)) return null
const directPath = join(MESSAGE_STORAGE, sessionID)
if (existsSync(directPath)) return directPath
for (const dir of readdirSync(MESSAGE_STORAGE)) {
const sessionPath = join(MESSAGE_STORAGE, dir, sessionID)
if (existsSync(sessionPath)) return sessionPath
}
return null
}
function formatDuration(start: Date, end?: Date): string {
const duration = (end ?? new Date()).getTime() - start.getTime()
const seconds = Math.floor(duration / 1000)
const minutes = Math.floor(seconds / 60)
const hours = Math.floor(minutes / 60)
if (hours > 0) return `${hours}h ${minutes % 60}m ${seconds % 60}s`
if (minutes > 0) return `${minutes}m ${seconds % 60}s`
return `${seconds}s`
}
type ToolContextWithMetadata = {
sessionID: string
messageID: string
agent: string
abort: AbortSignal
metadata?: (input: { title?: string; metadata?: Record<string, unknown> }) => void
}
function resolveCategoryConfig(
categoryName: string,
userCategories?: CategoriesConfig
): { config: CategoryConfig; promptAppend: string } | null {
const defaultConfig = DEFAULT_CATEGORIES[categoryName]
const userConfig = userCategories?.[categoryName]
const defaultPromptAppend = CATEGORY_PROMPT_APPENDS[categoryName] ?? ""
if (!defaultConfig && !userConfig) {
return null
}
const config: CategoryConfig = {
...defaultConfig,
...userConfig,
model: userConfig?.model ?? defaultConfig?.model ?? "anthropic/claude-sonnet-4-5",
}
let promptAppend = defaultPromptAppend
if (userConfig?.prompt_append) {
promptAppend = defaultPromptAppend
? defaultPromptAppend + "\n\n" + userConfig.prompt_append
: userConfig.prompt_append
}
return { config, promptAppend }
}
export interface SisyphusTaskToolOptions {
manager: BackgroundManager
client: OpencodeClient
userCategories?: CategoriesConfig
}
export function createSisyphusTask(options: SisyphusTaskToolOptions): ToolDefinition {
const { manager, client, userCategories } = options
return tool({
description: SISYPHUS_TASK_DESCRIPTION,
args: {
description: tool.schema.string().describe("Short task description"),
prompt: tool.schema.string().describe("Full detailed prompt for the agent"),
category: tool.schema.string().optional().describe(`Category name (e.g., ${CATEGORY_EXAMPLES}). Mutually exclusive with agent.`),
agent: tool.schema.string().optional().describe("Agent name directly (e.g., 'oracle', 'explore'). Mutually exclusive with category."),
background: tool.schema.boolean().describe("Run in background. MUST be explicitly set. Use false for task delegation, true only for parallel exploration."),
resume: tool.schema.string().optional().describe("Session ID to resume - continues previous agent session with full context"),
skills: tool.schema.array(tool.schema.string()).optional().describe("Array of skill names to prepend to the prompt. Skills will be resolved and their content prepended with a separator."),
},
async execute(args: SisyphusTaskArgs, toolContext) {
const ctx = toolContext as ToolContextWithMetadata
if (args.background === undefined) {
return `❌ Invalid arguments: 'background' parameter is REQUIRED. Use background=false for task delegation, background=true only for parallel exploration.`
}
const runInBackground = args.background === true
// Handle skills - resolve and prepend to prompt
if (args.skills && args.skills.length > 0) {
const { resolved, notFound } = resolveMultipleSkills(args.skills)
if (notFound.length > 0) {
const available = createBuiltinSkills().map(s => s.name).join(", ")
return `❌ Skills not found: ${notFound.join(", ")}. Available: ${available}`
}
const skillContent = Array.from(resolved.values()).join("\n\n")
args.prompt = skillContent + "\n\n---\n\n" + args.prompt
}
const messageDir = getMessageDir(ctx.sessionID)
const prevMessage = messageDir ? findNearestMessageWithFields(messageDir) : null
const parentModel = prevMessage?.model?.providerID && prevMessage?.model?.modelID
? { providerID: prevMessage.model.providerID, modelID: prevMessage.model.modelID }
: undefined
// Handle resume case first
if (args.resume) {
try {
const task = await manager.resume({
sessionId: args.resume,
prompt: args.prompt,
parentSessionID: ctx.sessionID,
parentMessageID: ctx.messageID,
parentModel,
})
ctx.metadata?.({
title: `Resume: ${task.description}`,
metadata: { sessionId: task.sessionID },
})
return `Background task resumed.
Task ID: ${task.id}
Session ID: ${task.sessionID}
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.`
} catch (error) {
const message = error instanceof Error ? error.message : String(error)
return `❌ Failed to resume task: ${message}`
}
}
if (args.category && args.agent) {
return `❌ Invalid arguments: Provide EITHER category OR agent, not both.`
}
if (!args.category && !args.agent) {
return `❌ Invalid arguments: Must provide either category or agent.`
}
let agentToUse: string
let categoryModel: { providerID: string; modelID: string } | undefined
if (args.category) {
const resolved = resolveCategoryConfig(args.category, userCategories)
if (!resolved) {
return `❌ Unknown category: "${args.category}". Available: ${Object.keys({ ...DEFAULT_CATEGORIES, ...userCategories }).join(", ")}`
}
agentToUse = SISYPHUS_JUNIOR_AGENT
categoryModel = parseModelString(resolved.config.model)
} else {
agentToUse = args.agent!.trim()
if (!agentToUse) {
return `❌ Agent name cannot be empty.`
}
// Validate agent exists and is callable (not a primary agent)
try {
const agentsResult = await client.app.agents()
type AgentInfo = { name: string; mode?: "subagent" | "primary" | "all" }
const agents = (agentsResult as { data?: AgentInfo[] }).data ?? agentsResult as unknown as AgentInfo[]
const callableAgents = agents.filter((a) => a.mode !== "primary")
const callableNames = callableAgents.map((a) => a.name)
if (!callableNames.includes(agentToUse)) {
const isPrimaryAgent = agents.some((a) => a.name === agentToUse && a.mode === "primary")
if (isPrimaryAgent) {
return `❌ Cannot call primary agent "${agentToUse}" via sisyphus_task. Primary agents are top-level orchestrators.`
}
const availableAgents = callableNames
.sort()
.join(", ")
return `❌ Unknown agent: "${agentToUse}". Available agents: ${availableAgents}`
}
} catch {
// If we can't fetch agents, proceed anyway - the session.prompt will fail with a clearer error
}
}
if (runInBackground) {
try {
const task = await manager.launch({
description: args.description,
prompt: args.prompt,
agent: agentToUse,
parentSessionID: ctx.sessionID,
parentMessageID: ctx.messageID,
parentModel,
model: categoryModel,
})
ctx.metadata?.({
title: args.description,
metadata: { sessionId: task.sessionID, category: args.category },
})
return `Background task launched.
Task ID: ${task.id}
Session ID: ${task.sessionID}
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.`
} catch (error) {
const message = error instanceof Error ? error.message : String(error)
return `❌ Failed to launch task: ${message}`
}
}
try {
const createResult = await client.session.create({
body: {
parentID: ctx.sessionID,
title: `Task: ${args.description}`,
},
})
if (createResult.error) {
return `❌ Failed to create session: ${createResult.error}`
}
const sessionID = createResult.data.id
const startTime = new Date()
ctx.metadata?.({
title: args.description,
metadata: { sessionId: sessionID, category: args.category, sync: true },
})
await client.session.prompt({
path: { id: sessionID },
body: {
agent: agentToUse,
model: categoryModel,
tools: {
task: false,
sisyphus_task: false,
},
parts: [{ type: "text", text: args.prompt }],
},
})
const messagesResult = await client.session.messages({
path: { id: sessionID },
})
if (messagesResult.error) {
return `❌ Error fetching result: ${messagesResult.error}`
}
const messages = ((messagesResult as { data?: unknown }).data ?? messagesResult) as Array<{
info?: { role?: string }
parts?: Array<{ type?: string; text?: string }>
}>
const assistantMessages = messages.filter((m) => m.info?.role === "assistant")
const lastMessage = assistantMessages[assistantMessages.length - 1]
const textParts = lastMessage?.parts?.filter((p) => p.type === "text") ?? []
const textContent = textParts.map((p) => p.text ?? "").filter(Boolean).join("\n")
const duration = formatDuration(startTime)
return `Task completed in ${duration}.
Agent: ${agentToUse}${args.category ? ` (category: ${args.category})` : ""}
Session ID: ${sessionID}
---
${textContent || "(No text output)"}`
} catch (error) {
const message = error instanceof Error ? error.message : String(error)
return `❌ Task failed: ${message}`
}
},
})
}