opencode/packages/core/src/tool/registry.ts
2026-07-07 09:31:59 -05:00

272 lines
11 KiB
TypeScript

export * as ToolRegistry from "./registry"
export type { CodeModeTools } from "./execute"
import { ToolOutput, type ToolCall, type ToolDefinition, type ToolResultValue } from "@opencode-ai/llm"
import { Context, Effect, Layer, Scope } from "effect"
import type { AgentV2 } from "../agent"
import { Flag } from "../flag/flag"
import { PermissionV2 } from "../permission"
import { SessionMessage } from "../session/message"
import { SessionSchema } from "../session/schema"
import { ToolOutputStore } from "../tool-output-store"
import { Wildcard } from "../util/wildcard"
import { ExecuteTool, type CodeModeTools } from "./execute"
import { definition, permission, registrationEntries, RegistrationError, settle, type AnyTool } from "./tool"
import { Tools } from "./tools"
import { ToolHooks } from "./hooks"
import { makeLocationNode } from "../effect/app-node"
import { LayerNode } from "../effect/layer-node"
import { SessionError } from "@opencode-ai/schema/session-error"
import { toSessionError } from "../session/to-session-error"
export type ExecuteInput = {
readonly sessionID: SessionSchema.ID
readonly agent: AgentV2.ID
readonly assistantMessageID: SessionMessage.ID
readonly call: ToolCall
}
export interface Interface {
readonly materialize: (input: MaterializeInput) => Effect.Effect<Materialization>
/** Internal registration capability exposed publicly only through Tools.Service. */
readonly register: (
tools: Readonly<Record<string, AnyTool>>,
options?: Tools.RegisterOptions,
) => Effect.Effect<void, RegistrationError, Scope.Scope>
}
export interface MaterializeInput {
readonly model: { readonly id: string; readonly provider: string }
readonly permissions?: PermissionV2.Ruleset
}
export interface Materialization {
readonly definitions: ReadonlyArray<ToolDefinition>
readonly settle: (input: ExecuteInput) => Effect.Effect<Settlement, ToolOutputStore.Error>
}
export interface Settlement {
readonly result: ToolResultValue
readonly output?: ToolOutput
readonly outputPaths?: ReadonlyArray<string>
readonly error?: SessionError.Error
}
export class Service extends Context.Service<Service, Interface>()("@opencode/v2/ToolRegistry") {}
class CodeModeCatalog extends Context.Service<CodeModeCatalog, { readonly tools: CodeModeTools }>()(
"@opencode/v2/CodeModeCatalog",
) {}
const codeModeCatalogNode = makeLocationNode({
service: CodeModeCatalog,
layer: Layer.succeed(CodeModeCatalog, CodeModeCatalog.of({ tools: {} })),
deps: [],
})
const registryLayer = Layer.effect(
Service,
Effect.gen(function* () {
const codeModeTools = (yield* CodeModeCatalog).tools
const resources = yield* ToolOutputStore.Service
const toolHooks = yield* ToolHooks.Service
type Registration = {
readonly identity: object
readonly tool: AnyTool
readonly name: string
readonly group?: string
readonly deferred: boolean
}
const local = new Map<string, Array<{ readonly token: object; readonly registration: Registration }>>()
const settleTool = Effect.fn("ToolRegistry.settleTool")(function* (input: ExecuteInput, tool: AnyTool) {
// Hooks fire only for hosted/local tools; provider-executed calls never reach settleTool.
const beforeEvent: ToolHooks.BeforeEvent = {
tool: input.call.name,
sessionID: input.sessionID,
agent: input.agent,
assistantMessageID: input.assistantMessageID,
toolCallID: input.call.id,
input: input.call.input,
}
yield* toolHooks.runBefore(beforeEvent)
const pending = yield* settle(
tool,
{ ...input.call, input: beforeEvent.input },
{
sessionID: input.sessionID,
agent: input.agent,
assistantMessageID: input.assistantMessageID,
toolCallID: input.call.id,
},
).pipe(
Effect.map((output) => ({ output })),
Effect.catchTag("LLM.ToolFailure", (failure) =>
Effect.succeed({
result: { type: "error" as const, value: failure.message },
error: toSessionError(failure),
}),
),
)
let settlement: Settlement
if ("result" in pending) {
settlement = pending
} else {
const bounded = yield* resources.bound({
sessionID: input.sessionID,
toolCallID: input.call.id,
output: pending.output,
})
const result = ToolOutput.toResultValue(bounded.output)
settlement =
result.type === "error"
? bounded.outputPaths.length > 0
? { result, outputPaths: bounded.outputPaths }
: { result }
: bounded.outputPaths.length > 0
? { result, output: bounded.output, outputPaths: bounded.outputPaths }
: { result, output: bounded.output }
}
const afterEvent: ToolHooks.AfterEvent = {
tool: input.call.name,
sessionID: input.sessionID,
agent: input.agent,
assistantMessageID: input.assistantMessageID,
toolCallID: input.call.id,
input: beforeEvent.input,
result: settlement.result,
output: settlement.output,
outputPaths: settlement.outputPaths,
}
yield* toolHooks.runAfter(afterEvent)
return {
result: afterEvent.result,
...(afterEvent.output !== undefined ? { output: afterEvent.output } : {}),
...(afterEvent.outputPaths !== undefined ? { outputPaths: afterEvent.outputPaths } : {}),
...(settlement.error !== undefined ? { error: settlement.error } : {}),
}
})
const settleWith = Effect.fn("ToolRegistry.settle")(function* (input: ExecuteInput, advertised: object) {
const registration = local.get(input.call.name)?.at(-1)?.registration
if (!registration || registration.identity !== advertised) {
const message = `Stale tool call: ${input.call.name}`
return {
result: { type: "error" as const, value: message },
error: { type: "tool.stale" as const, message },
}
}
return yield* settleTool(input, registration.tool)
})
return Service.of({
register: Effect.fn("ToolRegistry.register")(function* (tools, options) {
const entries = registrationEntries(tools, options?.group)
if (entries.length === 0) return
const reserved = options?.deferred ? undefined : entries.find((entry) => entry.key === "execute")
if (reserved)
return yield* Effect.fail(
new RegistrationError({ name: reserved.key, message: 'Tool name "execute" is reserved for CodeMode' }),
)
yield* Effect.uninterruptible(
Effect.gen(function* () {
const token = {}
for (const entry of entries)
local.set(entry.key, [
...(local.get(entry.key) ?? []),
{
token,
registration: {
identity: {},
tool: entry.tool,
name: entry.name,
group: entry.group,
deferred: options?.deferred ?? false,
},
},
])
yield* Effect.addFinalizer(() =>
Effect.sync(() => {
for (const entry of entries) {
const registrations =
local.get(entry.key)?.filter((registration) => registration.token !== token) ?? []
if (registrations.length > 0) local.set(entry.key, registrations)
else local.delete(entry.key)
}
}),
)
}),
)
}),
materialize: Effect.fn("ToolRegistry.materialize")(function* (input) {
const registrations = new Map<string, Registration>()
for (const [name, entries] of local) {
const registration = entries.at(-1)?.registration
if (registration) registrations.set(name, registration)
}
// OpenAI/GPT models use apply_patch; every other model uses edit and write.
const usePatch = input.model.provider.toLowerCase() === "openai" || input.model.id.toLowerCase().includes("gpt")
for (const [name, registration] of registrations) {
const wrongEditTool = name === "apply_patch" ? !usePatch : (name === "edit" || name === "write") && usePatch
if (
wrongEditTool ||
(registration.deferred && !Flag.CODEMODE_ENABLED) ||
whollyDisabled(permission(registration.tool, name), input.permissions ?? [])
)
registrations.delete(name)
}
const direct = new Map(Array.from(registrations).filter(([, registration]) => !registration.deferred))
const deferred = new Map(Array.from(registrations).filter(([, registration]) => registration.deferred))
const tools = Flag.CODEMODE_ENABLED ? codeModeTools : {}
const execute =
(deferred.size > 0 || Object.keys(tools).length > 0) && !whollyDisabled("execute", input.permissions ?? [])
? ExecuteTool.create({
registrations: deferred,
current: (name) => local.get(name)?.at(-1)?.registration,
tools,
})
: undefined
return {
definitions: [
...Array.from(direct, ([name, registration]) => definition(name, registration.tool)),
...(execute ? [definition("execute", execute)] : []),
],
settle: (input) => {
if (input.call.name === "execute" && execute) return settleTool(input, execute)
const registration = direct.get(input.call.name)
if (registration) return settleWith(input, registration.identity)
return Effect.succeed({
result: { type: "error", value: `Unknown tool: ${input.call.name}` },
error: { type: "tool.unknown", message: `Unknown tool: ${input.call.name}` },
})
},
}
}),
})
}),
)
const layer = Layer.effect(
Tools.Service,
Service.use((registry) => Effect.succeed(Tools.Service.of({ register: registry.register }))),
).pipe(Layer.provideMerge(registryLayer))
function whollyDisabled(action: string, rules: PermissionV2.Ruleset) {
const rule = rules.findLast((rule) => Wildcard.match(action, rule.action))
return rule?.resource === "*" && rule.effect === "deny"
}
export function codeModeReplacement(tools: CodeModeTools): LayerNode.Replacement {
return [codeModeCatalogNode, Layer.succeed(CodeModeCatalog, CodeModeCatalog.of({ tools }))]
}
export const node = makeLocationNode({
service: Service,
layer,
deps: [ToolOutputStore.node, ToolHooks.node, codeModeCatalogNode],
})
export const toolsNode = makeLocationNode({
service: Tools.Service,
layer,
deps: [ToolOutputStore.node, ToolHooks.node, codeModeCatalogNode],
})