feat: add reliable trigger and worker message blocks

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a03397-4d51-7fd1-8ff2-946eb22ea2bc

workplans/TAMQ-WP-0014-readable-duplex-messaging-and-limits.md

@@ -16,6 +16,10 @@ state_hub_workstream_id: "3b675117-dd26-553f-adea-d0505df3cadd"
 
 # Readable duplex messaging, runtime commands, and line limits
 
+> Follow-up: `TAMQ-WP-0015` supersedes this workplan's single-line worker
+> output contract with blank-line-terminated worker message blocks and repeats
+> `From:` framing on every delivered physical line.
+
 Replace the shell-oriented `@`/`#` protocol with a readable `To:`/`From:`
 protocol that can originate in either operator input or worker output, add an
 operator-only runtime command lane, separate input placement from submission,

workplans/TAMQ-WP-0015-reliable-trigger-and-worker-blocks.md

@@ -0,0 +1,106 @@
+---
+id: TAMQ-WP-0015
+type: workplan
+title: "Reliable trigger delivery and worker message blocks"
+domain: communication
+repo: tmux-amq
+status: finished
+owner: codex
+topic_slug: reliable-trigger-worker-blocks
+created: "2026-08-25"
+updated: "2026-08-25"
+---
+
+# Reliable trigger delivery and worker message blocks
+
+Correct first-delivery and trigger behavior for interactive terminal programs,
+allow agents to emit practical multi-line message blocks, and give repository
+workers a concise introduction that matches the implemented protocol.
+
+## Diagnose first delivery and trigger submission
+
+```task
+id: TAMQ-WP-0015-T01
+status: done
+priority: high
+```
+
+Compare durable live history with the terminal delivery path. Distinguish queue
+admission, tmux placement, terminal paste detection, and agent acknowledgement.
+
+### Evidence
+
+- Live history showed the reported trigger message reached durable state
+  `injected` within roughly 40 ms but did not start an agent turn.
+- Trigger previously sent literal text and Enter in one immediate tmux command
+  list, matching the receiving TUI's paste/newline behavior.
+- Endpoint registration occurred as soon as the PTY proxy was ready, without a
+  foreground-program initialization grace.
+
+## Make trigger distinct and protect first delivery
+
+```task
+id: TAMQ-WP-0015-T02
+status: done
+priority: high
+```
+
+Delay the one trigger Enter beyond terminal paste detection and defer input-mode
+delivery briefly after endpoint registration. Retain pushy's no-Enter contract.
+
+### Evidence
+
+- Trigger now places text, waits 150 ms in the checked tmux command queue, and
+  sends exactly one Enter; pushy still performs literal placement only.
+- Pushy and trigger wait a configurable one-second endpoint startup grace.
+- A real tmux paste-sensitive fixture classifies immediate Enter as a newline
+  and the new trigger sequence as one submission.
+
+## Collect worker output through an empty line
+
+```task
+id: TAMQ-WP-0015-T03
+status: done
+priority: high
+```
+
+Treat a worker `To:repo:` row as the beginning of a block. Append subsequent
+non-empty worker rows and admit one durable message at an empty row, a new
+address, or process exit.
+
+### Evidence
+
+- PTY normalization emits empty CRLF rows and infers visual empty rows from
+  forward cursor gaps in full-screen interfaces.
+- Continuation presentation indentation is removed and durable bodies retain
+  newline boundaries.
+- Delivery repeats the non-routable `From:` envelope on every physical line,
+  preventing a continuation from feeding back into routing.
+- A real tmux/PTY test routes a cursor-positioned, bullet-framed worker block
+  with a continuation and correct `worker_output` provenance.
+
+## Align introductory documentation and verification
+
+```task
+id: TAMQ-WP-0015-T04
+status: done
+priority: medium
+```
+
+Review the introduction produced during the audit-core/flex-auth conversation,
+make a concise canonical copy in this repository, and align README/SCOPE/CLI
+behavior with the revised protocol.
+
+### Evidence
+
+- `TamqMessagingIntroduction.md` now leads with the protocol, blank-line rule,
+  delivery modes, provenance, agent behavior, and state-based troubleshooting.
+- The reviewed document is mirrored to the original untracked audit-core path.
+- Direct `tamq send` now shares case-insensitive `To:` parsing with managed
+  terminals.
+- `make check` passes 166 tests, including real tmux and PTY coverage.
+
+## Residuals
+
+Bounded retry and positive acknowledgement semantics remain owned by
+`TAMQ-WP-0003`; this work does not claim that `injected` means agent-processed.