fix(tools): let a row be a bare label when its arguments are all payload

[ericleepi314]

What

before   ⏺ Exit Plan Mode(# Close the tool-result gaps - read cards - search cards)
after    ⏺ Exit Plan Mode

The row squeezed the whole plan into 64 columns of parens — and the review box directly below it then rendered the same plan in full, properly formatted:

⏺ Exit Plan Mode
  ⎿  Running…
╭────────────────────────────────────────────╮
│ Ready to code?                             │
│ Here is Claude's plan:                     │
│ ┌────────────────────────────────────────┐ │
│ │ Close the tool-result gaps             │ │
│ │ • read cards                           │ │
│ │ • search cards                         │ │
│ └────────────────────────────────────────┘ │
│ Would you like to proceed?                 │
│ ❯ 1. Yes, and bypass permissions           │
…

A plan is payload, exactly like a write's content or a delegation's brief, so it joins the bulk set.

The rule that was wrong for the same reason

When every argument turned out to be bulk, the preview fell back to projecting them all anyway — on the theory that a row should say something. It should not: formatToolCall already renders a preview-less call as a bare label, and a bare label is what the original shows for the tools whose real content draws below the row — ⏺ TodoWrite over its checklist, ⏺ TaskCreate, ⏺ ExitPlanMode over the plan under review. Dropping the fallback makes those read right and removes a rule.

Brief parity, checked end to end

The probe LLM can now emit several calls in one assistant message (;; between them), because the collapsed brief only reads right across a run of calls. Read, Read, Glob, Bash, Bash in one message:

dsh-ccTUI     Searched for 1 pattern, read 2 files, listed 1 directory, ran 1 shell command
Claude Code   Searched for 1 pattern, read 2 files, listed 1 directory, ran 1 shell command

Byte-identical.

Test

• npm run typecheck, npm test — 150 files / 1939 passing
• node scripts/verify-boundary.mjs
• toolArgs.test.ts: a plan renders nothing; the all-bulk case now asserts the bare label
• live captures via scripts/tool-gallery.py exit_plan_mode --live 8 and mixed_run

🤖 Generated with Claude Code