# claude-mem v13.23.1

- Product: claude-mem (https://whatsnew.fyi/product/claude-mem)
- Vendor: claude-mem
- Date: 2026-09-01
- Version: v13.23.1
- Original notes: https://github.com/thedotmack/claude-mem/releases/tag/v13.23.1
- Permalink: https://whatsnew.fyi/product/claude-mem/releases/v13.23.1

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

---

- **fixed** — The quota guard and `usage_limit_hit` telemetry event now correctly match the SDK's `rate_limit_event` message shape instead of the incorrect `system` message with subtype `rate_limit`
- **fixed** — The `extractRateLimitInfo` function in `RateLimitStore.ts` now accepts the real SDK message shape while maintaining backward compatibility with the legacy `system`/`rate_limit` form

##### Fix: the quota guard and `usage_limit_hit` never fired

###### The SDK's rate-limit message was matched by the wrong shape (#3838)

The quota guard (#2234) and the `usage_limit_hit` telemetry event added in 13.23.0 (#3837) both read the observer's SDK stream for a `system` message with subtype `rate_limit`. The SDK has never sent that. `SDKRateLimitEvent` in the pinned SDK (0.3.172) is a top-level `{ type: 'rate_limit_event', rate_limit_info }` message in the `SDKMessage` union, and no `system` subtype named `rate_limit` exists in its declarations.

So the guard never matched, `RateLimitStore` stayed empty, the subscription quota abort never fired, and `usage_limit_hit` stayed at zero across more than a thousand Claude-provider installs already running 13.23.0.

`extractRateLimitInfo` in `RateLimitStore.ts` now accepts the real shape and still tolerates the legacy `system`/`rate_limit` form. `ClaudeProvider` routes the stream through it. The guard logic and the event emission are unchanged.

Verified against the SDK's own type declarations and, independently, by Greptile's mocked-stream harness: subscription and OAuth sessions abort after a rejected event, API-key sessions stay exempt, and unrelated or malformed messages leave the store untouched.

**Full Changelog**: https://github.com/thedotmack/claude-mem/compare/v13.23.0...v13.23.1