reckless returned invalid character in json output

[overcoin]

Debian 13
v26.06.6 compiled from source
rustc 1.95.0 (59807616e 2026-04-14)
cargo 1.95.0 (f2d3ce0bd 2026-03-21)

lightning-cli reckless install summars
{
   "code": -3,
   "message": "reckless returned invalid character in json output"
}

Relevant lightningd.log:

plugin-summars: read startup options done
INFO lightningd: JSON COMMAND listconfigs: Invalid parameter config (Unknown config option): token '"hold-grpc-host"'
INFO plugin-summars: Hold support not activated: Error code -32602: config: Unknown config option: invalid token (see logs for details)
INFO plugin-summars: starting uptime task
INFO plugin-summars: starting refresh alias task
INFO plugin-summars: Starting alias map refresh
INFO plugin-summars: Alias map refresh done in: 11ms. 3 node aliases cached. 0 nodes missing from gossip. Next refresh in 86400s
UNUSUAL plugin-recklessrpc: failed to parse json: reckless returned invalid character in json output

[daywalker90]

I am writing a complete rewrite of reckless. The current implementation is just broken. The new one should land in v26.09. For now i ask you to please install it without reckless.

ElementsProject/lightning#9239