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CB-103: injector submits the prompt (Enter as a separate keystroke)

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A delegated message was delivered into the worker's input box but never
submitted, so no task was ever processed: bridge_send blocked until timeout
while the worker sat idle with the prompt typed but not entered.

herdr's agent.send delivers text as a bracketed paste; a trailing carriage
return in that same call is swallowed as literal newline content, not Enter.
AgentControl.send now emits two keystroke events — the payload, then a
standalone "\r" — so the worker actually submits and runs the task.

Verified live (Claude Code v2.1.210, off-sub worker): full hands-off
bridge_send -> auto-submit -> worker computes -> bridge_reply round trip
returns the reply in ~41s. 62 tests green.
This commit is contained in:
Dai Ha
2026-07-15 09:40:18 +02:00
parent 07722a6007
commit 6988bfe88f
3 changed files with 68 additions and 3 deletions
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bridged/src/main/java/dev/ltms/bridged/herdr/AgentControl.java
+18 -1
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@@ -18,6 +18,17 @@ import java.util.Map;
*/
public final class AgentControl {
/**
* The keystroke that submits a prompt in the Claude Code TUI: a carriage return (Enter).
* It must be delivered as its <em>own</em> {@code agent.send} call — herdr delivers a message's
* text as a bracketed paste, and a {@code "\r"} appended to that same text is swallowed as
* literal newline content, not a submit. Sent as a separate keystroke event it lands outside
* the paste and submits. (A bare {@code "\n"} inserts a newline either way.) Verified live
* against Claude Code v2.1.210: an injected task stayed unsubmitted with {@code "text\r"} in
* one call, and submitted the instant a standalone {@code "\r"} was sent.
*/
static final String SUBMIT_KEY = "\r";
private final HerdrClient herdr;
public AgentControl(HerdrClient herdr) {
@@ -53,9 +64,15 @@ public final class AgentControl {
return Agent.from(result.get("agent"));
}
/** Deliver {@code text} to an agent (its next prompt input). */
/**
* Deliver {@code text} to an agent as its next prompt <em>and submit it</em> — two keystroke
* events: the message (a bracketed paste, so any embedded newlines are preserved verbatim),
* then a standalone {@link #SUBMIT_KEY} (Enter) that actually submits it. Without the second
* event the text just sits in the worker's input box, never processed (see {@link #SUBMIT_KEY}).
*/
public void send(String target, String text) {
herdr.call("agent.send", Map.of("target", target, "text", text));
herdr.call("agent.send", Map.of("target", target, "text", SUBMIT_KEY));
}
/**