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Code Issues 5.9k Packages Projects Releases 19 Wiki Activity

fix: avoid async Promise executor for MCP templates

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This commit is contained in:
Artur Do Lago
2026-01-23 17:24:05 +01:00
parent d5e505b35a
commit befcbbde92
1 changed files with 22 additions and 16 deletions
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packages/agent-core/src/command/index.ts
+22 -16
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@@ -6,8 +6,10 @@ import { Identifier } from "../id/id"
import PROMPT_INITIALIZE from "./template/initialize.txt"
import PROMPT_REVIEW from "./template/review.txt"
import { MCP } from "../mcp"
import { Log } from "../util/log"
export namespace Command {
const log = Log.create({ service: "command" })
export const Event = {
Executed: BusEvent.define(
"command.executed",
@@ -97,22 +99,26 @@ export namespace Command {
mcp: true,
description: prompt.description,
get template() {
// since a getter can't be async we need to manually return a promise here
return new Promise<string>(async (resolve, reject) => {
const template = await MCP.getPrompt(
prompt.client,
prompt.name,
prompt.arguments
? // substitute each argument with $1, $2, etc.
Object.fromEntries(prompt.arguments?.map((argument, i) => [argument.name, `$${i + 1}`]))
: {},
).catch(reject)
resolve(
template?.messages
.map((message) => (message.content.type === "text" ? message.content.text : ""))
.join("\n") || "",
)
})
return (async () => {
try {
const template = await MCP.getPrompt(
prompt.client,
prompt.name,
prompt.arguments
? // substitute each argument with $1, $2, etc.
Object.fromEntries(prompt.arguments?.map((argument, i) => [argument.name, `$${i + 1}`]))
: {},
)
return (
template?.messages
.map((message) => (message.content.type === "text" ? message.content.text : ""))
.join("\n") || ""
)
} catch (error) {
log.error("failed to get MCP prompt", { error: String(error), name: prompt.name, client: prompt.client })
return ""
}
})()
},
hints: prompt.arguments?.map((_, i) => `$${i + 1}`) ?? [],
}