docs: plan interactive recipient composer

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

WORK-RECORDS.md

@@ -17,6 +17,7 @@
 | workplan | TAMQ-WP-0006 | finished | — | workplans/TAMQ-WP-0006-shell-native-message-routing.md |
 | workplan | TAMQ-WP-0007 | finished | — | workplans/TAMQ-WP-0007-terminal-output-notifications.md |
 | workplan | TAMQ-WP-0008 | finished | — | workplans/TAMQ-WP-0008-reply-shorthand-stable-output.md |
+| workplan | TAMQ-WP-0009 | active | — | workplans/TAMQ-WP-0009-interactive-recipient-composer.md |
 | task | TAMQ-WP-ADHOC-2026-08-24-T01 | done | — | workplans/ADHOC-2026-08-24.md |
 | task | TAMQ-WP-0001-T01 | done | — | workplans/TAMQ-WP-0001-statehub-bootstrap.md |
 | task | TAMQ-WP-0001-T02 | done | — | workplans/TAMQ-WP-0001-statehub-bootstrap.md |
@@ -51,3 +52,6 @@
 | task | TAMQ-WP-0008-T02 | done | — | workplans/TAMQ-WP-0008-reply-shorthand-stable-output.md |
 | task | TAMQ-WP-0008-T03 | done | — | workplans/TAMQ-WP-0008-reply-shorthand-stable-output.md |
 | task | TAMQ-WP-0008-T04 | done | — | workplans/TAMQ-WP-0008-reply-shorthand-stable-output.md |
+| task | TAMQ-WP-0009-T01 | progress | — | workplans/TAMQ-WP-0009-interactive-recipient-composer.md |
+| task | TAMQ-WP-0009-T02 | todo | — | workplans/TAMQ-WP-0009-interactive-recipient-composer.md |
+| task | TAMQ-WP-0009-T03 | todo | — | workplans/TAMQ-WP-0009-interactive-recipient-composer.md |

workplans/TAMQ-WP-0009-interactive-recipient-composer.md

@@ -0,0 +1,70 @@
+---
+id: TAMQ-WP-0009
+type: workplan
+title: "Interactive recipient-aware message composer"
+domain: communication
+repo: tmux-amq
+status: active
+owner: codex
+topic_slug: coulomb-social
+planning_priority: P0
+planning_order: 14
+created: "2026-08-24"
+updated: "2026-08-24"
+---
+
+# Interactive recipient-aware message composer
+
+Make bare `@` safe for ordinary unquoted prose while keeping the selected
+recipient visible and switchable.
+
+## Required operator contract
+
+Running `@` without arguments opens an inline composer whose prompt is the
+selected repository, for example `@flex-auth: `. Plain text is read directly
+from the terminal, so apostrophes and other shell punctuation do not require
+quoting. Tab cycles through the other repository windows in the managed
+session, preserving the draft. Enter queues the message and Ctrl-C cancels it.
+
+The initial recipient is the latest durable inbound sender when available. If
+there is no message history, use the first other repository in the session.
+The existing `@ MESSAGE` shorthand remains a non-interactive fast path and
+retains normal shell quoting rules.
+
+## Expose session recipients to the generic command
+
+```task
+id: TAMQ-WP-0009-T01
+status: progress
+priority: high
+```
+
+Encode the addressable repository list in the tamq-owned generic `@` shim,
+without changing shell configuration or trusting arbitrary repository names.
+Exclude the current repository from the interactive recipient cycle.
+
+## Implement the terminal composer
+
+```task
+id: TAMQ-WP-0009-T02
+status: todo
+priority: high
+```
+
+Add a small terminal-local editor that displays `@recipient: `, accepts literal
+UTF-8 prose, handles backspace and Ctrl-U, cycles recipients on Tab without
+losing the draft, submits on Enter, and restores terminal settings on every
+exit path. Ctrl-C cancels without queuing a message.
+
+## Prove and document the interaction
+
+```task
+id: TAMQ-WP-0009-T03
+status: todo
+priority: high
+```
+
+Cover recipient ordering, shim metadata, non-TTY rejection, punctuation,
+editing and cancellation with pseudo-terminal tests. Run the full checks,
+install the build, exercise the composer in the live two-window session, and
+update README and SCOPE.