🎯 Use case
This file lives under “constants/”, which covers static strings, built-in prompts, spinners, and style constants. On the API surface it exposes CLAUDE_CODE_20250219_BETA_HEADER, INTERLEAVED_THINKING_BETA_HEADER, CONTEXT_1M_BETA_HEADER, CONTEXT_MANAGEMENT_BETA_HEADER, and STRUCTURED_OUTPUTS_BETA_HEADER (and more) — mainly types, interfaces, or factory objects. Dependencies touch bun:bundle. What the file header says: Tool search beta headers differ by provider: - Claude API / Foundry: advanced-tool-use-2025-11-20 - Vertex AI / Bedrock: tool-search-tool-2025-10-19.
Generated from folder role, exports, dependency roots, and inline comments — not hand-reviewed for every path.
🧠 Inline summary
Tool search beta headers differ by provider: - Claude API / Foundry: advanced-tool-use-2025-11-20 - Vertex AI / Bedrock: tool-search-tool-2025-10-19
📤 Exports (heuristic)
CLAUDE_CODE_20250219_BETA_HEADERINTERLEAVED_THINKING_BETA_HEADERCONTEXT_1M_BETA_HEADERCONTEXT_MANAGEMENT_BETA_HEADERSTRUCTURED_OUTPUTS_BETA_HEADERWEB_SEARCH_BETA_HEADERTOOL_SEARCH_BETA_HEADER_1PTOOL_SEARCH_BETA_HEADER_3PEFFORT_BETA_HEADERTASK_BUDGETS_BETA_HEADERPROMPT_CACHING_SCOPE_BETA_HEADERFAST_MODE_BETA_HEADERREDACT_THINKING_BETA_HEADERTOKEN_EFFICIENT_TOOLS_BETA_HEADERSUMMARIZE_CONNECTOR_TEXT_BETA_HEADERAFK_MODE_BETA_HEADERCLI_INTERNAL_BETA_HEADERADVISOR_BETA_HEADERBEDROCK_EXTRA_PARAMS_HEADERSVERTEX_COUNT_TOKENS_ALLOWED_BETAS
📚 External import roots
Package roots from from "…" (relative paths omitted).
bun:bundle
🖥️ Source preview
import { feature } from 'bun:bundle'
export const CLAUDE_CODE_20250219_BETA_HEADER = 'claude-code-20250219'
export const INTERLEAVED_THINKING_BETA_HEADER =
'interleaved-thinking-2025-05-14'
export const CONTEXT_1M_BETA_HEADER = 'context-1m-2025-08-07'
export const CONTEXT_MANAGEMENT_BETA_HEADER = 'context-management-2025-06-27'
export const STRUCTURED_OUTPUTS_BETA_HEADER = 'structured-outputs-2025-12-15'
export const WEB_SEARCH_BETA_HEADER = 'web-search-2025-03-05'
// Tool search beta headers differ by provider:
// - Claude API / Foundry: advanced-tool-use-2025-11-20
// - Vertex AI / Bedrock: tool-search-tool-2025-10-19
export const TOOL_SEARCH_BETA_HEADER_1P = 'advanced-tool-use-2025-11-20'
export const TOOL_SEARCH_BETA_HEADER_3P = 'tool-search-tool-2025-10-19'
export const EFFORT_BETA_HEADER = 'effort-2025-11-24'
export const TASK_BUDGETS_BETA_HEADER = 'task-budgets-2026-03-13'
export const PROMPT_CACHING_SCOPE_BETA_HEADER =
'prompt-caching-scope-2026-01-05'
export const FAST_MODE_BETA_HEADER = 'fast-mode-2026-02-01'
export const REDACT_THINKING_BETA_HEADER = 'redact-thinking-2026-02-12'
export const TOKEN_EFFICIENT_TOOLS_BETA_HEADER =
'token-efficient-tools-2026-03-28'
export const SUMMARIZE_CONNECTOR_TEXT_BETA_HEADER = feature('CONNECTOR_TEXT')
? 'summarize-connector-text-2026-03-13'
: ''
export const AFK_MODE_BETA_HEADER = feature('TRANSCRIPT_CLASSIFIER')
? 'afk-mode-2026-01-31'
: ''
export const CLI_INTERNAL_BETA_HEADER =
process.env.USER_TYPE === 'ant' ? 'cli-internal-2026-02-09' : ''
export const ADVISOR_BETA_HEADER = 'advisor-tool-2026-03-01'
/**
* Bedrock only supports a limited number of beta headers and only through
* extraBodyParams. This set maintains the beta strings that should be in
* Bedrock extraBodyParams *and not* in Bedrock headers.
*/
export const BEDROCK_EXTRA_PARAMS_HEADERS = new Set([
INTERLEAVED_THINKING_BETA_HEADER,
CONTEXT_1M_BETA_HEADER,
TOOL_SEARCH_BETA_HEADER_3P,
])
/**
* Betas allowed on Vertex countTokens API.
* Other betas will cause 400 errors.
*/
export const VERTEX_COUNT_TOKENS_ALLOWED_BETAS = new Set([
CLAUDE_CODE_20250219_BETA_HEADER,
INTERLEAVED_THINKING_BETA_HEADER,
CONTEXT_MANAGEMENT_BETA_HEADER,
])