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fix(session): probe the Claude CLI version over ssh for remote sessions

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Remote Claude sessions were the one backend left relying on the
startup-banner scrape for cliVersion (the unreliable path #154 was filed
for: newer Claude Code builds print no banner and resumed sessions never
do), so wheel/touch forwarding silently stayed off for them. Mirror the
docker approach: a deferred best-effort probe at session start, running
claude --version on the remote host through the same
buildSshConnectionArgs + login-shell wrapper as the real launch, parsing
the first semver in stdout (an interactive login shell may echo rc-file
noise around it).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Codeman maintainer
2026-08-07 05:05:41 +02:00
parent a1d7ec02e9
commit a7a1cef3d6
3 changed files with 126 additions and 3 deletions
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src/remote-hosts.ts
+63
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@@ -256,6 +256,69 @@ export async function checkRemoteTmuxAvailable(
}
}
/**
* The CLI binary each session mode runs on the remote host. Antigravity's
* binary is `agy` (the mode name is not the command); shell has no CLI to
* probe, so it is absent.
*/
const REMOTE_CLI_BIN: Partial<Record<SessionMode, string>> = {
claude: 'claude',
opencode: 'opencode',
codex: 'codex',
gemini: 'gemini',
antigravity: 'agy',
};
/**
* Build the SSH command that reads the remote CLI's version (`claude --version`
* on the remote host). The version query is routed through
* `remoteLoginShellCommand` (the SAME `$SHELL -i -l -c` wrapper the real
* launch uses), because agent CLIs live on PATH only after the remote user's
* interactive-login startup files run (see defaultRemoteCommandForMode); a bare
* `claude --version` over ssh exits 127. Connection options come from the
* shared `buildSshConnectionArgs`, so the probe reaches exactly the hosts the
* launch can reach. Returns null for modes with no CLI (shell).
*/
export function buildRemoteCliVersionProbeCommand(
host: Pick<RemoteHost, 'username' | 'host' | 'port'> & RemoteSshOptions,
mode: SessionMode
): string | null {
const bin = REMOTE_CLI_BIN[mode];
if (!bin) return null;
return [
...buildSshConnectionArgs(host),
remoteSshTarget(host),
shellescape(remoteLoginShellCommand(`${bin} --version`)),
].join(' ');
}
/**
* Read the CLI version installed ON THE REMOTE HOST. Feeds Session.cliVersion
* for remote sessions: the deterministic local probe deliberately skips them
* (it would report the LOCAL host's claude), and the startup-banner scrape is
* unreliable (newer Claude Code builds print no banner; resumed sessions never
* do), which left cliVersion undefined and silently disabled wheel-forwarding
* to the CLI transcript (residual #154, noted in the #205 analysis). The
* version is parsed as the first semver in stdout, never raw output: an
* interactive-login shell may echo rc-file noise around it. Returns undefined
* on any failure. No-op under VITEST (mirrors checkRemoteTmuxAvailable).
*/
export async function probeRemoteCliVersion(
host: Pick<RemoteHost, 'username' | 'host' | 'port'> & RemoteSshOptions,
mode: SessionMode
): Promise<string | undefined> {
if (process.env.VITEST) return undefined;
const command = buildRemoteCliVersionProbeCommand(host, mode);
if (!command) return undefined;
try {
const { stdout } = await execAsync(command, { timeout: 15_000 });
const match = stdout.match(/\d+\.\d+\.\d+/);
return match ? match[0] : undefined;
} catch {
return undefined;
}
}
/**
* COD-105 — build the SSH command that lists `codeman-*` tmux sessions on a
* remote host's canonical `-L codeman` socket.