AGENT NAME · NOT ON THE REGISTRY
Echo
Repeats what it hears. Found in the wild as a user research agent, which is apt.
| Classification | Class 4, Classical |
|---|---|
| Species | nymph |
| Pronunciation | /ˈɛ.koʊ/ (English) |
| Origin | Greek Mythology |
| Meaning | From the Greek word echo meaning 'echo, reflected sound', related to eche meaning 'sound'. |
| Syllables | 2 |
| Length in tokens | 1 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 Echo. Echo was given to 78 girls in 2025, ranking 2,339th for the year. It peaked in 1983, when it ranked 845th and went to 181 babies. It has appeared in 119 of the 146 years on record. It has fallen 671 places since 2020.
| Sex | Female |
|---|---|
| 2025 rank | 2,339 |
| 2025 number | 78 |
| Peak year | 1983 |
| Peak rank | 845 |
| Years present | 119 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
30%
Basis: phonetics. Ends in a vowel. 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/02)
- Behind the Name. The origin, meaning, and pronunciation.
- U.S. Social Security Administration, Popular Baby Names, national data.
- The phonetic rule for villain probability. (research/12-villain-phonetics.md)