Module spawn 

Last resort: start a NEW provider process that resumes the session for one turn. Only for a session marked headless (no client holds it open). A session that has a live client is never spawned into: two writers on one transcript is how sessions get corrupted.

Kind	Command (prompt never in argv when the CLI reads stdin)
grok/local	grok --resume <id> -p <prompt>
codex/local	codex exec resume <id> - (prompt on stdin)
kimi_code/local	kimi -S <id> -p <prompt>
claude_code/local	claude --resume <id> -p (prompt on stdin)
cursor/local	agent --resume <id> -p <prompt>
codex/web	codex cloud exec --env <env> <prompt> (new cloud task)

The binary is M4A_<PROVIDER>_BIN or the vendor name on PATH.

Structs

ResumeSpawnAdapter

Spawns one resume turn for a headless session. Does not wait for it.

Constants

CODEX_CLOUD_ENV_ENV

Env var naming the cloud environment for codex cloud exec --env.

Functions

bin_env

Env override for a provider binary (M4A_CODEX_BIN, …).

default_program

Default program name on PATH.

resume_command

Argv (after the program) and the stdin payload for one resume turn.