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claude-print/notes/bf-9u4.md
jedarden 066f1e060b Close bead bf-9u4: bracketed paste injection verified complete 
Implementation was already present from bf-54m. make_prompt_payload()
wraps the startup prompt in ESC[200~ / ESC[201~\r; injection fires after
the post-dismiss idle gap. All 41 tests pass confirming correct behavior.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-08 10:17:59 -04:00

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bf-9u4: Bracketed Paste Injection

Status: Already Implemented (verified)

Bracketed paste injection was completed as part of bf-54m (idle-gap timing). No additional code was required.

Implementation

startup.rs:188-199 — StartupSeq::make_prompt_payload() wraps the startup prompt in the correct escape sequences:

  • \x1b[200~ (ESC[200~) — bracketed paste open
  • prompt bytes
  • \x1b[201~\r (ESC[201~) — bracketed paste close + CR to submit

Injection fires from poll_timers() in the TrustDismissed phase after idle_gap_ms of uninterrupted PTY silence, satisfying the ordering requirement from bf-54m.

Tests Verified

All 41 tests pass (30 unit + 11 integration):

  • startup::tests::make_prompt_payload_wraps_in_bracketed_paste — output bytes contain \x1b[200~ and \x1b[201~\r
  • startup::tests::idle_gap_fires_after_silence — full payload verified (open, prompt, close+CR)
  • startup::tests::idle_gap_resets_on_new_output — injection deferred until PTY goes silent
  • tests/startup.rs::test_trust_dialog_prompt_payload_uses_bracketed_paste — integration-level check