Two independent bugs made MCP terminal tools time out despite the command
finishing.
First, timeout_ms is declared integer in the tool schemas but was parsed
through GetStringArg, which only reads JSON strings. A numeric value fell
through to the 20s default, so callers asking for a longer wait were cut off
at 20s. exec_command, terminal_open, terminal_exec and remote_open now parse
timeout_ms through GetIntArg, which accepts both JSON numbers and digit
strings, keeping the 1..600000 range guard.
Second, FindSentinel treated the __MCP_DONE_<nonce>__ marker as a line start
only when preceded by \n. Commands that produce no output (ping > nul,
Start-Sleep, tar -czf) echo their command line ending in \r, so the marker
never matched and the wait ran to timeout even though the command had
completed. The check now also accepts \r.
Co-Authored-By: deepseek-v4-pro
ac2855198b