Semaphore: Delays in job processing
Anthropic outage, Feb 4, 2026 · 8 vendors, 8 incidents
Semaphore’s incident started in the same window without naming Anthropic (timing only, not evidence of a link). (timing only, posted −1 min vs Anthropic’s own post)
Swipe sideways to see the whole diagram.
Mermaid source
flowchart LR
root["Anthropic<br/>posted 16:39 UTC"]:::root
h1["Within an hour<br/>2 vendors, 2 blamed Anthropic<br/>Cursor, Deepgram"]:::blames
root --> h1
me["Semaphore (this incident)<br/>posted −1 min"]:::me
root -.->|"same window"| meFull event: timeline, evidence and all vendors →
Detected automatically from incidents that started together and named the same provider. A link means one vendor’s incident named another, not a confirmed cause.
Affected components: Semaphore
Timeline of updates
- identified
The issue has been identified and a fix is being implemented.
- monitoring
A fix has been implemented and we are monitoring the results.
- resolved
This incident has been resolved.
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert.
How the archive is checked, and what it cannot prove.
This incident predates live tracking (October 17, 2026). It came from the vendor’s own published history, which is not covered by checkpoints.
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).