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source dump of claude code
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8.2 kB · 222 lines
TypeScript
at main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223import type Anthropic from '@anthropic-ai/sdk'import type { BetaToolUnion } from '@anthropic-ai/sdk/resources/beta/messages.js'import { getLastApiCompletionTimestamp, setLastApiCompletionTimestamp,} from '../bootstrap/state.js'import { STRUCTURED_OUTPUTS_BETA_HEADER } from '../constants/betas.js'import type { QuerySource } from '../constants/querySource.js'import { getAttributionHeader, getCLISyspromptPrefix,} from '../constants/system.js'import { logEvent } from '../services/analytics/index.js'import type { AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS } from '../services/analytics/metadata.js'import { getAPIMetadata } from '../services/api/claude.js'import { getAnthropicClient } from '../services/api/client.js'import { getModelBetas, modelSupportsStructuredOutputs } from './betas.js'import { computeFingerprint } from './fingerprint.js'import { normalizeModelStringForAPI } from './model/model.js'
type MessageParam = Anthropic.MessageParamtype TextBlockParam = Anthropic.TextBlockParamtype Tool = Anthropic.Tooltype ToolChoice = Anthropic.ToolChoicetype BetaMessage = Anthropic.Beta.Messages.BetaMessagetype BetaJSONOutputFormat = Anthropic.Beta.Messages.BetaJSONOutputFormattype BetaThinkingConfigParam = Anthropic.Beta.Messages.BetaThinkingConfigParam
export type SideQueryOptions = { /** Model to use for the query */ model: string /** * System prompt - string or array of text blocks (will be prefixed with CLI attribution). * * The attribution header is always placed in its own TextBlockParam block to ensure * server-side parsing correctly extracts the cc_entrypoint value without including * system prompt content. */ system?: string | TextBlockParam[] /** Messages to send (supports cache_control on content blocks) */ messages: MessageParam[] /** Optional tools (supports both standard Tool[] and BetaToolUnion[] for custom tool types) */ tools?: Tool[] | BetaToolUnion[] /** Optional tool choice (use { type: 'tool', name: 'x' } for forced output) */ tool_choice?: ToolChoice /** Optional JSON output format for structured responses */ output_format?: BetaJSONOutputFormat /** Max tokens (default: 1024) */ max_tokens?: number /** Max retries (default: 2) */ maxRetries?: number /** Abort signal */ signal?: AbortSignal /** Skip CLI system prompt prefix (keeps attribution header for OAuth). For internal classifiers that provide their own prompt. */ skipSystemPromptPrefix?: boolean /** Temperature override */ temperature?: number /** Thinking budget (enables thinking), or `false` to send `{ type: 'disabled' }`. */ thinking?: number | false /** Stop sequences — generation stops when any of these strings is emitted */ stop_sequences?: string[] /** Attributes this call in tengu_api_success for COGS joining against reporting.sampling_calls. */ querySource: QuerySource}
/** * Extract text from first user message for fingerprint computation. */function extractFirstUserMessageText(messages: MessageParam[]): string { const firstUserMessage = messages.find(m => m.role === 'user') if (!firstUserMessage) return ''
const content = firstUserMessage.content if (typeof content === 'string') return content
// Array of content blocks - find first text block const textBlock = content.find(block => block.type === 'text') return textBlock?.type === 'text' ? textBlock.text : ''}
/** * Lightweight API wrapper for "side queries" outside the main conversation loop. * * Use this instead of direct client.beta.messages.create() calls to ensure * proper OAuth token validation with fingerprint attribution headers. * * This handles: * - Fingerprint computation for OAuth validation * - Attribution header injection * - CLI system prompt prefix * - Proper betas for the model * - API metadata * - Model string normalization (strips [1m] suffix for API) * * @example * // Permission explainer * await sideQuery({ querySource: 'permission_explainer', model, system: SYSTEM_PROMPT, messages, tools, tool_choice }) * * @example * // Session search * await sideQuery({ querySource: 'session_search', model, system: SEARCH_PROMPT, messages }) * * @example * // Model validation * await sideQuery({ querySource: 'model_validation', model, max_tokens: 1, messages: [{ role: 'user', content: 'Hi' }] }) */export async function sideQuery(opts: SideQueryOptions): Promise<BetaMessage> { const { model, system, messages, tools, tool_choice, output_format, max_tokens = 1024, maxRetries = 2, signal, skipSystemPromptPrefix, temperature, thinking, stop_sequences, } = opts
const client = await getAnthropicClient({ maxRetries, model, source: 'side_query', }) const betas = [...getModelBetas(model)] // Add structured-outputs beta if using output_format and provider supports it if ( output_format && modelSupportsStructuredOutputs(model) && !betas.includes(STRUCTURED_OUTPUTS_BETA_HEADER) ) { betas.push(STRUCTURED_OUTPUTS_BETA_HEADER) }
// Extract first user message text for fingerprint const messageText = extractFirstUserMessageText(messages)
// Compute fingerprint for OAuth attribution const fingerprint = computeFingerprint(messageText, MACRO.VERSION) const attributionHeader = getAttributionHeader(fingerprint)
// Build system as array to keep attribution header in its own block // (prevents server-side parsing from including system content in cc_entrypoint) const systemBlocks: TextBlockParam[] = [ attributionHeader ? { type: 'text', text: attributionHeader } : null, // Skip CLI system prompt prefix for internal classifiers that provide their own prompt ...(skipSystemPromptPrefix ? [] : [ { type: 'text' as const, text: getCLISyspromptPrefix({ isNonInteractive: false, hasAppendSystemPrompt: false, }), }, ]), ...(Array.isArray(system) ? system : system ? [{ type: 'text' as const, text: system }] : []), ].filter((block): block is TextBlockParam => block !== null)
let thinkingConfig: BetaThinkingConfigParam | undefined if (thinking === false) { thinkingConfig = { type: 'disabled' } } else if (thinking !== undefined) { thinkingConfig = { type: 'enabled', budget_tokens: Math.min(thinking, max_tokens - 1), } }
const normalizedModel = normalizeModelStringForAPI(model) const start = Date.now() // biome-ignore lint/plugin: this IS the wrapper that handles OAuth attribution const response = await client.beta.messages.create( { model: normalizedModel, max_tokens, system: systemBlocks, messages, ...(tools && { tools }), ...(tool_choice && { tool_choice }), ...(output_format && { output_config: { format: output_format } }), ...(temperature !== undefined && { temperature }), ...(stop_sequences && { stop_sequences }), ...(thinkingConfig && { thinking: thinkingConfig }), ...(betas.length > 0 && { betas }), metadata: getAPIMetadata(), }, { signal }, )
const requestId = (response as { _request_id?: string | null })._request_id ?? undefined const now = Date.now() const lastCompletion = getLastApiCompletionTimestamp() logEvent('tengu_api_success', { requestId: requestId as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS, querySource: opts.querySource as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS, model: normalizedModel as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS, inputTokens: response.usage.input_tokens, outputTokens: response.usage.output_tokens, cachedInputTokens: response.usage.cache_read_input_tokens ?? 0, uncachedInputTokens: response.usage.cache_creation_input_tokens ?? 0, durationMsIncludingRetries: now - start, timeSinceLastApiCallMs: lastCompletion !== null ? now - lastCompletion : undefined, }) setLastApiCompletionTimestamp(now)
return response}