[kacigaya]

Tool approval is the one moment the agent waits for a person, but the request was hard to read. It showed as one transcript line with the policy reason joined to the arguments by a semicolon. The status line cut long commands. The input box only said Approve tool? y / N.

Approval requests now open a panel above the input. The panel shows the tool name, the full arguments, the policy reason on its own why line, and the keys: y run once, n deny, esc stop turn. Long commands wrap inside the panel and are not cut. The transcript records only the answer. A denial shows in red with the denied arguments.

The palette also gives each color one job. Before, one violet filled 5 of the 9 palette names.

Role	Color	Used for
Accent	violet (unchanged)	Logo, prompt, selection, key hints, inline code
Attention	ANSI yellow	Approval panel, spinner, waiting state
Success	ANSI green	Added diff lines
Danger	ANSI red	Errors, denials, removed diff lines
Text	terminal default	Messages, headings, code blocks, and the input border

The new colors are named ANSI colors, so they follow the user's terminal theme.

Real screen captures showed two older bugs, and this PR fixes them too:

• Transcript lines dropped their line-level style when joined to the role bullet. Code and diff colors never showed.
• Text streamed before a tool call was discarded. Text streamed before a denied approval was joined to the next reply (…confirm it.## Finding). Both now go to the transcript before the tool event.

Key behavior does not change: n and Enter deny, and Esc stops the turn. The approval event now carries reason as a separate field. agent.rs no longer joins it into args_summary.

Validation:

• cargo fmt -- --check
• cargo clippy --all-targets -- -D warnings
• cargo test: 208 tests passed, including new tests for the approval panel, the transcript viewport, diff colors, and streamed text around tool events
• One-off TestBackend render at 96×24, not kept in the branch: a long curl command wraps inside the panel
• Real binary in a 100×30 pseudo-terminal against a local mock Ollama server: home, /model, the approval panel, and the reply after a denial. The tools ran on a sample workspace.
• Website bun run test and bun run build, for the docs change

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