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import { Config } from "../config/config"
import z from "zod"
import { Provider } from "../provider/provider"
import { generateObject, streamObject, type ModelMessage } from "ai"
import { SystemPrompt } from "../session/system"
import { Instance } from "../project/instance"
import { Truncate } from "../tool/truncation"
import { Auth } from "../auth"
import { ProviderTransform } from "../provider/transform"
import PROMPT_GENERATE from "./generate.txt"
import PROMPT_COMPACTION from "./prompt/compaction.txt"
import PROMPT_EXPLORE from "./prompt/explore.txt"
import PROMPT_SUMMARY from "./prompt/summary.txt"
import PROMPT_TITLE from "./prompt/title.txt"
import { PermissionNext } from "@/permission/next"
import { mergeDeep, pipe, sortBy, values } from "remeda"
import { Global } from "@/global"
import path from "path"
import { Plugin } from "@/plugin"
import { Skill } from "../skill"
export namespace Agent {
export const Info = z
.object({
name: z.string(),
description: z.string().optional(),
mode: z.enum(["subagent", "primary", "all"]),
native: z.boolean().optional(),
hidden: z.boolean().optional(),
topP: z.number().optional(),
temperature: z.number().optional(),
color: z.string().optional(),
permission: PermissionNext.Ruleset,
model: z
.object({
modelID: z.string(),
providerID: z.string(),
})
.optional(),
variant: z.string().optional(),
prompt: z.string().optional(),
options: z.record(z.string(), z.any()),
steps: z.number().int().positive().optional(),
})
.meta({
ref: "Agent",
})
export type Info = z.infer<typeof Info>
const state = Instance.state(async () => {
const cfg = await Config.get()
const skillDirs = await Skill.dirs()
const whitelistedDirs = [Truncate.GLOB, ...skillDirs.map((dir) => path.join(dir, "*"))]
const defaults = PermissionNext.fromConfig({
"*": "allow",
doom_loop: "ask",
external_directory: {
"*": "ask",
...Object.fromEntries(whitelistedDirs.map((dir) => [dir, "allow"])),
},
question: "deny",
plan_enter: "deny",
plan_exit: "deny",
// mirrors github.com/github/gitignore Node.gitignore pattern for .env files
read: {
"*": "allow",
"*.env": "ask",
"*.env.*": "ask",
"*.env.example": "allow",
},
})
const user = PermissionNext.fromConfig(cfg.permission ?? {})
const result: Record<string, Info> = {
build: {
name: "build",
description: "The default agent. Executes tools based on configured permissions.",
options: {},
permission: PermissionNext.merge(
defaults,
PermissionNext.fromConfig({
question: "allow",
plan_enter: "allow",
}),
user,
),
mode: "primary",
native: true,
},
plan: {
name: "plan",
description: "Plan mode. Disallows all edit tools.",
options: {},
permission: PermissionNext.merge(
defaults,
PermissionNext.fromConfig({
question: "allow",
plan_exit: "allow",
external_directory: {
[path.join(Global.Path.data, "plans", "*")]: "allow",
},
edit: {
"*": "deny",
[path.join(".opencode", "plans", "*.md")]: "allow",
[path.relative(Instance.worktree, path.join(Global.Path.data, path.join("plans", "*.md")))]: "allow",
},
}),
user,
),
mode: "primary",
native: true,
},
general: {
name: "general",
description: `General-purpose agent for researching complex questions and executing multi-step tasks. Use this agent to execute multiple units of work in parallel.`,
permission: PermissionNext.merge(
defaults,
PermissionNext.fromConfig({
todoread: "deny",
todowrite: "deny",
}),
user,
),
options: {},
mode: "subagent",
native: true,
},
explore: {
name: "explore",
permission: PermissionNext.merge(
defaults,
PermissionNext.fromConfig({
"*": "deny",
grep: "allow",
glob: "allow",
list: "allow",
bash: "allow",
webfetch: "allow",
websearch: "allow",
codesearch: "allow",
read: "allow",
external_directory: {
"*": "ask",
...Object.fromEntries(whitelistedDirs.map((dir) => [dir, "allow"])),
},
}),
user,
),
description: `Fast agent specialized for exploring codebases. Use this when you need to quickly find files by patterns (eg. "src/components/**/*.tsx"), search code for keywords (eg. "API endpoints"), or answer questions about the codebase (eg. "how do API endpoints work?"). When calling this agent, specify the desired thoroughness level: "quick" for basic searches, "medium" for moderate exploration, or "very thorough" for comprehensive analysis across multiple locations and naming conventions.`,
prompt: PROMPT_EXPLORE,
options: {},
mode: "subagent",
native: true,
},
compaction: {
name: "compaction",
mode: "primary",
native: true,
hidden: true,
prompt: PROMPT_COMPACTION,
permission: PermissionNext.merge(
defaults,
PermissionNext.fromConfig({
"*": "deny",
}),
user,
),
options: {},
},
title: {
name: "title",
mode: "primary",
options: {},
native: true,
hidden: true,
temperature: 0.5,
permission: PermissionNext.merge(
defaults,
PermissionNext.fromConfig({
"*": "deny",
}),
user,
),
prompt: PROMPT_TITLE,
},
summary: {
name: "summary",
mode: "primary",
options: {},
native: true,
hidden: true,
permission: PermissionNext.merge(
defaults,
PermissionNext.fromConfig({
"*": "deny",
}),
user,
),
prompt: PROMPT_SUMMARY,
},
}
for (const [key, value] of Object.entries(cfg.agent ?? {})) {
if (value.disable) {
delete result[key]
continue
}
let item = result[key]
if (!item)
item = result[key] = {
name: key,
mode: "all",
permission: PermissionNext.merge(defaults, user),
options: {},
native: false,
}
if (value.model) item.model = Provider.parseModel(value.model)
item.variant = value.variant ?? item.variant
item.prompt = value.prompt ?? item.prompt
item.description = value.description ?? item.description
item.temperature = value.temperature ?? item.temperature
item.topP = value.top_p ?? item.topP
item.mode = value.mode ?? item.mode
item.color = value.color ?? item.color
item.hidden = value.hidden ?? item.hidden
item.name = value.name ?? item.name
item.steps = value.steps ?? item.steps
item.options = mergeDeep(item.options, value.options ?? {})
item.permission = PermissionNext.merge(item.permission, PermissionNext.fromConfig(value.permission ?? {}))
}
// Ensure Truncate.GLOB is allowed unless explicitly configured
for (const name in result) {
const agent = result[name]
const explicit = agent.permission.some((r) => {
if (r.permission !== "external_directory") return false
if (r.action !== "deny") return false
return r.pattern === Truncate.GLOB
})
if (explicit) continue
result[name].permission = PermissionNext.merge(
result[name].permission,
PermissionNext.fromConfig({ external_directory: { [Truncate.GLOB]: "allow" } }),
)
}
return result
})
export async function get(agent: string) {
return state().then((x) => x[agent])
}
export async function list() {
const cfg = await Config.get()
return pipe(
await state(),
values(),
sortBy([(x) => (cfg.default_agent ? x.name === cfg.default_agent : x.name === "build"), "desc"]),
)
}
export async function defaultAgent() {
const cfg = await Config.get()
const agents = await state()
if (cfg.default_agent) {
const agent = agents[cfg.default_agent]
if (!agent) throw new Error(`default agent "${cfg.default_agent}" not found`)
if (agent.mode === "subagent") throw new Error(`default agent "${cfg.default_agent}" is a subagent`)
if (agent.hidden === true) throw new Error(`default agent "${cfg.default_agent}" is hidden`)
return agent.name
}
const primaryVisible = Object.values(agents).find((a) => a.mode !== "subagent" && a.hidden !== true)
if (!primaryVisible) throw new Error("no primary visible agent found")
return primaryVisible.name
}
export async function generate(input: { description: string; model?: { providerID: string; modelID: string } }) {
const cfg = await Config.get()
const defaultModel = input.model ?? (await Provider.defaultModel())
const model = await Provider.getModel(defaultModel.providerID, defaultModel.modelID)
const language = await Provider.getLanguage(model)
const system = [PROMPT_GENERATE]
await Plugin.trigger("experimental.chat.system.transform", { model }, { system })
const existing = await list()
const params = {
experimental_telemetry: {
isEnabled: cfg.experimental?.openTelemetry,
metadata: {
userId: cfg.username ?? "unknown",
},
},
temperature: 0.3,
messages: [
...system.map(
(item): ModelMessage => ({
role: "system",
content: item,
}),
),
{
role: "user",
content: `Create an agent configuration based on this request: \"${input.description}\".\n\nIMPORTANT: The following identifiers already exist and must NOT be used: ${existing.map((i) => i.name).join(", ")}\n Return ONLY the JSON object, no other text, do not wrap in backticks`,
},
],
model: language,
schema: z.object({
identifier: z.string(),
whenToUse: z.string(),
systemPrompt: z.string(),
}),
} satisfies Parameters<typeof generateObject>[0]
if (defaultModel.providerID === "openai" && (await Auth.get(defaultModel.providerID))?.type === "oauth") {
const result = streamObject({
...params,
providerOptions: ProviderTransform.providerOptions(model, {
instructions: SystemPrompt.instructions(),
store: false,
}),
onError: () => {},
})
for await (const part of result.fullStream) {
if (part.type === "error") throw part.error
}
return result.object
}
const result = await generateObject(params)
return result.object
}
}