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feat(core): update Copilot for token-based billing (#30181)

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This commit is contained in:
Aiden Cline
2026-06-01 14:55:23 -05:00
committed by GitHub
parent fa23fb5d38
commit ae92f3158f
10 changed files with 340 additions and 77 deletions
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35
packages/opencode/src/plugin/github-copilot/copilot.ts
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@@ -10,6 +10,8 @@ import { MessageV2 } from "@/session/message-v2"
const log = Log.create({ service: "plugin.copilot" })
const CLIENT_ID = "Ov23li8tweQw6odWQebz"
const API_VERSION = "2026-06-01"
const UTILITY_MODELS = ["gpt-5.4-nano", "gpt-4.1", "gpt-4o", "gpt-4o-mini"]
// Add a small safety buffer when polling to avoid hitting the server
// slightly too early due to clock skew / timer drift.
const OAUTH_POLLING_SAFETY_MARGIN_MS = 3000 // 3 seconds
@@ -56,11 +58,13 @@ function fix(model: Model, url: string): Model {
export async function CopilotAuthPlugin(input: PluginInput): Promise<Hooks> {
const sdk = input.client
let models: Record<string, Model> = {}
return {
provider: {
id: "github-copilot",
async models(provider, ctx) {
if (ctx.auth?.type !== "oauth") {
models = {}
return Object.fromEntries(Object.entries(provider.models).map(([id, model]) => [id, fix(model, base())]))
}
@@ -71,14 +75,23 @@ export async function CopilotAuthPlugin(input: PluginInput): Promise<Hooks> {
{
Authorization: `Bearer ${auth.refresh}`,
"User-Agent": `opencode/${InstallationVersion}`,
"X-GitHub-Api-Version": API_VERSION,
},
provider.models,
).catch((error) => {
log.error("failed to fetch copilot models", { error })
return Object.fromEntries(
Object.entries(provider.models).map(([id, model]) => [id, fix(model, base(auth.enterpriseUrl))]),
)
})
)
.then((result) => {
models = result.models
return Object.fromEntries(
Object.entries(result.models).filter(([, model]) => result.pickerEnabled.has(model.api.id)),
)
})
.catch((error) => {
models = {}
log.error("failed to fetch copilot models", { error })
return Object.fromEntries(
Object.entries(provider.models).map(([id, model]) => [id, fix(model, base(auth.enterpriseUrl))]),
)
})
},
},
auth: {
@@ -342,9 +355,19 @@ export async function CopilotAuthPlugin(input: PluginInput): Promise<Hooks> {
output.options.toolStreaming = false
}
},
"experimental.provider.small_model": async (incoming, output) => {
if (incoming.provider.id !== "github-copilot") return
// GitHub exposes utility models for title generation without including them in the picker.
output.model = UTILITY_MODELS.map((id) => models[id]).find((model) => model !== undefined)
},
"chat.headers": async (incoming, output) => {
if (!incoming.model.providerID.includes("github-copilot")) return
output.headers["X-GitHub-Api-Version"] = API_VERSION
if (incoming.agent === "title") {
output.headers["X-Interaction-Type"] = "agent-session-name-generation"
}
if (incoming.model.api.npm === "@ai-sdk/anthropic") {
output.headers["anthropic-beta"] = "interleaved-thinking-2025-05-14"
}