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agent.ts
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import { cmd } from "./cmd"
import * as prompts from "@clack/prompts"
import { UI } from "../ui"
import { Global } from "../../global"
import { Agent } from "../../agent/agent"
import { Provider } from "../../provider/provider"
import path from "path"
import fs from "fs/promises"
import { Filesystem } from "../../util/filesystem"
import matter from "gray-matter"
import { Instance } from "../../project/instance"
import { EOL } from "os"
import type { Argv } from "yargs"
type AgentMode = "all" | "primary" | "subagent"
const AVAILABLE_TOOLS = [
"bash",
"read",
"write",
"edit",
"list",
"glob",
"grep",
"webfetch",
"task",
"todowrite",
"todoread",
]
const AgentCreateCommand = cmd({
command: "create",
describe: "create a new agent",
builder: (yargs: Argv) =>
yargs
.option("path", {
type: "string",
describe: "directory path to generate the agent file",
})
.option("description", {
type: "string",
describe: "what the agent should do",
})
.option("mode", {
type: "string",
describe: "agent mode",
choices: ["all", "primary", "subagent"] as const,
})
.option("tools", {
type: "string",
describe: `comma-separated list of tools to enable (default: all). Available: "${AVAILABLE_TOOLS.join(", ")}"`,
})
.option("model", {
type: "string",
alias: ["m"],
describe: "model to use in the format of provider/model",
}),
async handler(args) {
await Instance.provide({
directory: process.cwd(),
async fn() {
const cliPath = args.path
const cliDescription = args.description
const cliMode = args.mode as AgentMode | undefined
const cliTools = args.tools
const isFullyNonInteractive = cliPath && cliDescription && cliMode && cliTools !== undefined
if (!isFullyNonInteractive) {
UI.empty()
prompts.intro("Create agent")
}
const project = Instance.project
// Determine scope/path
let targetPath: string
if (cliPath) {
targetPath = path.join(cliPath, "agent")
} else {
let scope: "global" | "project" = "global"
if (project.vcs === "git") {
const scopeResult = await prompts.select({
message: "Location",
options: [
{
label: "Current project",
value: "project" as const,
hint: Instance.worktree,
},
{
label: "Global",
value: "global" as const,
hint: Global.Path.config,
},
],
})
if (prompts.isCancel(scopeResult)) throw new UI.CancelledError()
scope = scopeResult
}
targetPath = path.join(
scope === "global" ? Global.Path.config : path.join(Instance.worktree, ".opencode"),
"agent",
)
}
// Get description
let description: string
if (cliDescription) {
description = cliDescription
} else {
const query = await prompts.text({
message: "Description",
placeholder: "What should this agent do?",
validate: (x) => (x && x.length > 0 ? undefined : "Required"),
})
if (prompts.isCancel(query)) throw new UI.CancelledError()
description = query
}
// Generate agent
const spinner = prompts.spinner()
spinner.start("Generating agent configuration...")
const model = args.model ? Provider.parseModel(args.model) : undefined
const generated = await Agent.generate({ description, model }).catch((error) => {
spinner.stop(`LLM failed to generate agent: ${error.message}`, 1)
if (isFullyNonInteractive) process.exit(1)
throw new UI.CancelledError()
})
spinner.stop(`Agent ${generated.identifier} generated`)
// Select tools
let selectedTools: string[]
if (cliTools !== undefined) {
selectedTools = cliTools ? cliTools.split(",").map((t) => t.trim()) : AVAILABLE_TOOLS
} else {
const result = await prompts.multiselect({
message: "Select tools to enable (Space to toggle)",
options: AVAILABLE_TOOLS.map((tool) => ({
label: tool,
value: tool,
})),
initialValues: AVAILABLE_TOOLS,
})
if (prompts.isCancel(result)) throw new UI.CancelledError()
selectedTools = result
}
// Get mode
let mode: AgentMode
if (cliMode) {
mode = cliMode
} else {
const modeResult = await prompts.select({
message: "Agent mode",
options: [
{
label: "All",
value: "all" as const,
hint: "Can function in both primary and subagent roles",
},
{
label: "Primary",
value: "primary" as const,
hint: "Acts as a primary/main agent",
},
{
label: "Subagent",
value: "subagent" as const,
hint: "Can be used as a subagent by other agents",
},
],
initialValue: "all" as const,
})
if (prompts.isCancel(modeResult)) throw new UI.CancelledError()
mode = modeResult
}
// Build tools config
const tools: Record<string, boolean> = {}
for (const tool of AVAILABLE_TOOLS) {
if (!selectedTools.includes(tool)) {
tools[tool] = false
}
}
// Build frontmatter
const frontmatter: {
description: string
mode: AgentMode
tools?: Record<string, boolean>
} = {
description: generated.whenToUse,
mode,
}
if (Object.keys(tools).length > 0) {
frontmatter.tools = tools
}
// Write file
const content = matter.stringify(generated.systemPrompt, frontmatter)
const filePath = path.join(targetPath, `${generated.identifier}.md`)
await fs.mkdir(targetPath, { recursive: true })
if (await Filesystem.exists(filePath)) {
if (isFullyNonInteractive) {
console.error(`Error: Agent file already exists: ${filePath}`)
process.exit(1)
}
prompts.log.error(`Agent file already exists: ${filePath}`)
throw new UI.CancelledError()
}
await Filesystem.write(filePath, content)
if (isFullyNonInteractive) {
console.log(filePath)
} else {
prompts.log.success(`Agent created: ${filePath}`)
prompts.outro("Done")
}
},
})
},
})
const AgentListCommand = cmd({
command: "list",
describe: "list all available agents",
async handler() {
await Instance.provide({
directory: process.cwd(),
async fn() {
const agents = await Agent.list()
const sortedAgents = agents.sort((a, b) => {
if (a.native !== b.native) {
return a.native ? -1 : 1
}
return a.name.localeCompare(b.name)
})
for (const agent of sortedAgents) {
process.stdout.write(`${agent.name} (${agent.mode})` + EOL)
process.stdout.write(` ${JSON.stringify(agent.permission, null, 2)}` + EOL)
}
},
})
},
})
export const AgentCommand = cmd({
command: "agent",
describe: "manage agents",
builder: (yargs) => yargs.command(AgentCreateCommand).command(AgentListCommand).demandCommand(),
async handler() {},
})