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## Why `openai/openai#947613` adds `X-Codex-Rate-Limit-Reached-Type` for Codex workspace credit-depletion and spend-cap responses. The CLI currently reads the adjacent promo header but otherwise renders generic usage-limit copy, so those responses do not explain the workspace-specific action the user needs to take. Backend dependency: https://github.com/openai/openai/pull/947613 ## What Changed - Parse `X-Codex-Rate-Limit-Reached-Type` in the usage-limit error handling path alongside `x-codex-promo-message`. - Keep the header value parsing with the shared `RateLimitReachedType` enum. - Carry the parsed type on `UsageLimitReachedError` and render client-owned copy for the four workspace owner/member credit and spend-cap values. - Preserve existing promo and plan-based text for absent, generic, or unknown header values. - Keep the existing TUI workspace-owner nudge state path unchanged; the response header only selects the displayed error string. - Add focused display coverage for all specific type values and the generic fallback case. ## Test Plan - Added `usage_limit_reached_error_formats_rate_limit_reached_types` coverage. - Not run manually, per request; CI runs validation on the pushed commit.
codex-api
Typed clients for Codex/OpenAI APIs built on top of the generic transport in codex-client.
- Hosts the request/response models and request builders for Responses and Compact APIs.
- Owns provider configuration (base URLs, headers, query params), auth header injection, retry tuning, and stream idle settings.
- Parses SSE streams into
ResponseEvent/ResponseStream, including rate-limit snapshots and API-specific error mapping. - Serves as the wire-level layer consumed by
codex-core; higher layers handle auth refresh and business logic.
Core interface
The public interface of this crate is intentionally small and uniform:
-
Responses endpoint
- Input:
ResponsesApiRequestfor the request body (model,instructions,input,tools,parallel_tool_calls, reasoning/text controls).ResponsesOptionsfor transport/header concerns (conversation_id,session_source,extra_headers,compression,turn_state).
- Output: a
ResponseStreamofResponseEvent(both re-exported fromcommon).
- Input:
-
Compaction endpoint
- Input:
CompactionInput<'a>(re-exported ascodex_api::CompactionInput):model: &str.input: &[ResponseItem]– history to compact.instructions: &str– fully-resolved compaction instructions.
- Output:
Vec<ResponseItem>. CompactClient::compact_input(&CompactionInput, extra_headers)wraps the JSON encoding and retry/telemetry wiring.
- Input:
-
Memory summarize endpoint
- Input:
MemorySummarizeInput(re-exported ascodex_api::MemorySummarizeInput):model: String.raw_memories: Vec<RawMemory>(serialized astracesfor wire compatibility).RawMemoryincludesid,metadata.source_path, and normalizeditems.
reasoning: Option<Reasoning>.
- Output:
Vec<MemorySummarizeOutput>. MemoriesClient::summarize_input(&MemorySummarizeInput, extra_headers)wraps JSON encoding and retry/telemetry wiring.
- Input:
All HTTP details (URLs, headers, retry/backoff policies, SSE framing) are encapsulated in codex-api and codex-client. Callers construct prompts/inputs using protocol types and work with typed streams of ResponseEvent or compacted ResponseItem values.