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Merge pull request #171 from ksp2000/feature/copilot-auto-model-buckets

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refactor(copilot): use auto model buckets for transcript inference
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Resham Joshi 2026-04-28 12:17:50 -07:00 • committed by GitHub
commit fbb2c4e69c
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3 changed files with 129 additions and 3 deletions
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2
src/models.ts
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@ -133,6 +133,8 @@ const BUILTIN_ALIASES: Record<string, string> = {
'cursor-auto': 'claude-sonnet-4-5',
'cursor-agent-auto': 'claude-sonnet-4-5',
'copilot-auto': 'claude-sonnet-4-5',
'copilot-openai-auto': 'gpt-5.3-codex',
'copilot-anthropic-auto': 'claude-sonnet-4-5',
'kiro-auto': 'claude-sonnet-4-5',
'cline-auto': 'claude-sonnet-4-5',
'openclaw-auto': 'claude-sonnet-4-5',

36
src/providers/copilot.ts
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@ -13,8 +13,16 @@ const modelDisplayNames: Record<string, string> = {
'gpt-4.1': 'GPT-4.1',
'gpt-4o-mini': 'GPT-4o Mini',
'gpt-4o': 'GPT-4o',
'gpt-5.4': 'GPT-5.4',
'gpt-5.3-codex': 'GPT-5.3 Codex',
'gpt-5-mini': 'GPT-5 Mini',
'gpt-5': 'GPT-5',
'claude-opus-4-7': 'Opus 4.7',
'claude-opus-4-6': 'Opus 4.6',
'claude-opus-4-5': 'Opus 4.5',
'claude-opus-4-1': 'Opus 4.1',
'claude-opus-4': 'Opus 4',
'claude-sonnet-4-6': 'Sonnet 4.6',
'claude-sonnet-4-5': 'Sonnet 4.5',
'claude-sonnet-4': 'Sonnet 4',
'claude-3-7-sonnet': 'Sonnet 3.7',
@ -45,6 +53,8 @@ const toolNameMap: Record<string, string> = {
}
const CHARS_PER_TOKEN = 4
const COPILOT_OPENAI_AUTO = 'copilot-openai-auto'
const COPILOT_ANTHROPIC_AUTO = 'copilot-anthropic-auto'
const modelDisplayEntries = Object.entries(modelDisplayNames).sort((a, b) => b[0].length - a[0].length)
@ -143,15 +153,35 @@ type TranscriptEvent =
| { type: 'assistant.message'; timestamp?: string; data: { messageId: string; content?: string; reasoningText?: string; toolRequests?: TranscriptToolRequest[]; outputTokens?: number } }
| { type: string; timestamp?: string; data: Record<string, unknown> }
const transcriptToolCallModelHints: Array<{ prefix: string; model: string }> = [
// Anthropic tool-call ID variants observed in Copilot transcript logs.
{ prefix: 'toolu_bdrk_', model: COPILOT_ANTHROPIC_AUTO },
{ prefix: 'toolu_vrtx_', model: COPILOT_ANTHROPIC_AUTO },
{ prefix: 'tooluse_', model: COPILOT_ANTHROPIC_AUTO },
// OpenAI tool-call IDs.
{ prefix: 'call_', model: COPILOT_OPENAI_AUTO },
]
function inferModelFromToolCallIds(events: TranscriptEvent[]): string {
const modelCounts = new Map<string, number>()
for (const e of events) {
if (e.type !== 'assistant.message') continue
const msg = e as { data: { toolRequests?: TranscriptToolRequest[] } }
for (const t of msg.data.toolRequests ?? []) {
if (t.toolCallId?.startsWith('toolu_bdrk_')) return 'claude-sonnet-4-5'
if (t.toolCallId?.startsWith('call_')) return 'gpt-4.1'
const toolCallId = t.toolCallId ?? ''
for (const hint of transcriptToolCallModelHints) {
if (!toolCallId.startsWith(hint.prefix)) continue
modelCounts.set(hint.model, (modelCounts.get(hint.model) ?? 0) + 1)
break
}
}
}
if (modelCounts.size > 0) {
return [...modelCounts.entries()].sort((a, b) => b[1] - a[1])[0]![0]
}
return 'copilot-auto'
}
@ -375,6 +405,8 @@ export function createCopilotProvider(sessionStateDir?: string, workspaceStorage
modelDisplayName(model: string): string {
if (model === 'copilot-auto') return 'Copilot (auto)'
if (model === COPILOT_OPENAI_AUTO) return 'Copilot (OpenAI auto)'
if (model === COPILOT_ANTHROPIC_AUTO) return 'Copilot (Anthropic auto)'
for (const [key, name] of modelDisplayEntries) {
if (model === key || model.startsWith(key + '-')) return name
}