tool-config show always returns json
All the commands should return json (or jsonl) if and only if it is requested with --json (or jsonl) option.
cbrain tool-config show 230
{
"id": 230,
"version_name": "5.0.0",
"description": "fsl_first 5.0.0 on simple_name",
"tool_id": 300,
"bourreau_id": 2,
"group_id": 2,
"ncpus": null
}