# worker/handlers
List the `@worker`-marked handler names a worker exposes.
## Syntax
[worker/handlers $w]
## Parameters
- `$w` — worker or pool handle from `defworker`
For a pool, the names of every worker are concatenated (duplicates possible).
## Examples
set w [defworker "workers/image.dft"] [worker/handlers $w] # → @{ "process-image" ... }
## Returns
Vector of handler-name strings (order unspecified); `%Err{:message}` when
the argument is not a worker or pool handle. Use the names as the
`handler-name` argument to `worker/send` / `worker/stream`.
## See Also
`defworker`, `worker/send`, `worker/stream`