61 lines
2.9 KiB
Markdown
61 lines
2.9 KiB
Markdown
# Per-agent terminal: row taxonomy (as built)
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The per-agent web UI's live pane renders one row per `TermMsg`
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(`hive-agent/src/term_msg.rs`): `{icon?, level: debug|info|warn|error,
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summary, body?, body_format?: markdown|diff, coalesce_key?}`. Classification
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(icon, summary text, whether a tool call gets an expandable body) happens
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server-side, once — `term_msg.rs` + `stream_enrich.rs` — and both
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`GET /api/events/history` and `GET /api/events/stream` serve it identically
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as `TermEnvelope { ts, seq?, msgs: TermMsg[] }` frames
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(`hive-agent/src/web_ui/stream.rs`).
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The frontend renders a `TermMsg` close to as-is
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(`frontend/packages/agent/src/components/Row.tsx`): `level` picks the
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CSS colour (`terminal.css`'s `.live .level-*`), an empty `summary` +
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markdown `body` renders as a flat row with just the body (assistant
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text), and any other bodied row is an expandable `<details>`, opened by
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default according to the operator's expand-tool-output preference
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(`getExpandDetailsPref()`) — uniformly, no per-tool override. There's no
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separate client-side row model or classification step.
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## Layout
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Every row is its own 2-column grid — icon column (`.row-glyph`, width
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from the `--row-icon-col` custom property) then content column
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(`.row-content`, or a markdown body's own `.md` class) — so an icon's
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left edge lands in the same place regardless of row kind. A `<details>`
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row grids its `<summary>` instead of itself (so the `<pre>` body below
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can stack full-width), using the exact same `grid-template-columns` value,
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with the disclosure caret leading the summary text rather than the icon.
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One shared column definition, not two independently computed offsets
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kept in sync by hand — see `terminal.css`'s own comment on the incident
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that motivated the change.
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## Levels
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| Level | Colour | Roughly |
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|---|---|---|
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| `debug` | muted | thinking, coalesced ticks, ambient harness chatter |
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| `info` | default fg | turn start/ok, assistant text, tool calls + results |
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| `warn` | amber, left rule | stderr, an unrecognised event shape, API retries |
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| `error` | red, left rule | turn failed, a tool result with `is_error: true` |
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The settings menu's "hide debug output" toggle (`getHideDebugPref()`,
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`@hive/shared/prefs.js`) skips `debug`-level rows entirely rather than
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muting them further — client-side only, same live-read-no-reload shape
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as the expand-tool-output preference above.
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Per-tool icon + summary formatting (what a `Read`/`Edit`/`send` call's row
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actually says) lives in `stream_enrich.rs`'s `fmt_tool_use()` family —
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read that when you need the specifics, this doc doesn't duplicate it.
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## Markdown
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`frontend/packages/agent/src/lib/markdown.ts`'s `renderMarkdown()` runs
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`marked.parse()` through DOMPurify into a `<div class="md">`. Applied to
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any `TermMsg` with `body_format: "markdown"`.
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## Dashboard side (not covered here)
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The main dashboard's message-flow pane is a different shape: broker
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messages render as `.msgrow` grid lines, not agent-terminal rows.
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