{"version":"2.1.286","anchor":"bridge-attachment-timing-events-and-edit-hook-session-refusa","canonical_anchor":"bridge-attachment-timing-events-and-edit-hook-session-refusa","heading":"New attachment timing measurements, and a reworked edit-hook refusal in child sessions","tier":"internal","area":"Attachments","url":"https:\/\/changelogs.core-directive.com\/v\/2.1.286\/e\/bridge-attachment-timing-events-and-edit-hook-session-refusa","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.286","markdown":"### New attachment timing measurements, and a reworked edit-hook refusal in child sessions\n\nClaude Code records two new timings for attachments, and the hidden edit-hook command's refusal in child sessions now uses a shared check\n\n**Unclear.** It is not clear whether the shared check refuses in more cases than when `CLAUDE_CODE_CHILD_SESSION` is set.\n\n**What**\n\n- Claude Code now records two more timing measurements for attachments: how long it waits for attached files, and a turn that starts before those files arrive.\n\n- The hidden `edit-hook` command refuses to run inside a child session (a Claude Code session started by another one). That refusal now goes through a shared check.\n\n**Why**\n\nThe timings are for measuring how long attachments take to arrive.\n\n- Area: Attachments\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 2\/5"}