AGENT NAME · NOT ON THE REGISTRY
Rex
The tester in a build-review-test pipeline described on Hacker News, kept in a separate session with no shared context with the builder. 170th among human boys in 1951, 859th in 2025, and on 1,227 dog licences in New York, 86th there.
| Classification | Class 8, Common given name |
|---|---|
| Species | tester |
| Pronunciation | As written |
| Origin | – |
| Meaning | – |
| Syllables | 1 |
| Length in tokens | 2 by the GPT tokenizer. The Claude count is pending. |
| Births registered | 0 |
| First registered | – |
| Public agent files on GitHub | – |
Statement of record
No birth has been registered under the name Rex. Rex was given to 281 boys in 2025, ranking 859th for the year. It peaked in 1951, when it ranked 170th and went to 1,503 babies. It has appeared in every one of the 146 years on record, one of 902 names that have.
| Sex | Male |
|---|---|
| 2025 rank | 859 |
| 2025 number | 281 |
| Peak year | 1951 |
| Peak rank | 170 |
| Years present | 146 of 146 |
Births registered
No birth has been registered under this name. If an agent has been born under it, its parent may register the birth.
Villain probability
60%
Basis: phonetics. One sibilant, ends on a consonant. The canon has no entry, so this is the sound of the name and nothing else.
Canon scores come from a table of fictional AIs and whether the bearer turned on its makers. Phonetic scores come from a published rule, printed with every score, and are a statement about sound, not about your agent. How the sound is scored.
Conflicts with other registries
Checking eight registries.
Sources
- The note on file. (research/38)
- U.S. Social Security Administration, Popular Baby Names, national data.
- The phonetic rule for villain probability. (research/12-villain-phonetics.md)