[currentbits]

Typing /copy in the composer now copies the latest assistant reply on the thread as Markdown, like /copy in the Kimi and Grok CLIs. Before this, getting an answer into a PR description or Slack meant drag-selecting a bubble that re-renders on every stream tick. Closes #493.

Changes

• /copy is a new run verb in the / palette. It copies the newest assistant reply that has text. Tool cards, thinking, and a reply that is still streaming are skipped. On an empty thread it does nothing.
• A "Copied last reply" strip shows on the composer's status edge for 1.5s. It uses the same timer as the thread-ID "Copied" flash, which is now one shared helper.
• The hover copy button on each assistant message already existed. This PR adds test coverage for copying an older turn with it.

Verification

• tsc --noEmit is clean.
• After rebasing on main: slashCommands.test.ts 16/16 pass. composerSlashActions, composerCommands, threadHeader and threadView 230/230 pass. The new tests cover /copy on the latest reply with a tool card after it, the per-message button on an older reply, and /copy on an empty thread.
• Full renderer suite before the rebase: 3074 pass, 1 fail. The failure was a temp-file store flush race in threadHeader.test.tsx, and that file passed 2/2 when rerun on its own.
• Not tested: I haven't clicked through it in the running app.

Notes for reviewers

• During a run, the "Copied" strip replaces the working strip for 1.5s, so the Stop button is hidden briefly. Esc still stops the run.
• Mid-turn, /copy copies the previous finished reply, not the partial one.
• There is no separate plain-text or rich-HTML copy. Markdown source covers the PR and Slack use cases.

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🤖 Generated with Claude Code

[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-18T19:55:23.395041Z	cb2a98a	PR opened

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[chatgpt-codex-connector]

💡 Codex Review

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Reviewed commit: cb2a98a035

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[chatgpt-codex-connector]

Exclude every message from the active run

When a working turn emits assistant text and then starts a tool, the runners append the tool after that assistant message, so useTranscriptAnnotations sets streamingMessageId to null because the last message is no longer an assistant. Invoking /copy during the tool then selects the current turn's pre-tool commentary instead of the previous completed reply (and does so even when no completed reply exists). Exclude assistant messages belonging to the active run while the thread is working, rather than excluding only streamingMessageId.

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