Feat/tool card

[grunjol]

Groups consecutive tool calls into compact emoji cards instead of
rendering individual tool-bubbles. Tool cards appear during streaming
(via SSE hermes.tool.progress events) and persist after the response
completes. Also filters out empty ghost bubbles left behind during
token-by-token streaming.

Changes

_toolMessages — a separate state list populated during streaming
via SSE tool-progress events. On stream completion (onDone), server
messages with role: 'tool' are parsed to extract tool names via
_extractToolMessages().

_extractToolMessages() — scans the server message list for
role: 'tool' entries. Extracts the tool name from the name field,
or parses source="..." from the content (e.g.
<untrusted_tool_result source="browser_navigate">).

_toolEmoji() — maps tool names to emojis: 🌐 browser, 📄
read_file, ✏️ write_file, 🔍 search, 💻 execute, 🧠 think, 🔧 default.

_ToolProgressCard — a compact inline widget showing ✅ 🌐 🔍 📄
(completed) or ⏳ 🌐 🔍 with a spinner (active). Consecutive tool
calls are grouped into separate cards (e.g. user → 🌐 📄 → assistant → user → 🔍 → assistant).

Empty bubble filter — assistant messages with empty content are
excluded from the display list, eliminating phantom bubbles during
streaming.

Real-time streaming — tools from SSE events that arrive during
streaming are shown immediately, before the server response is
complete. Previously they only appeared after onDone or on re-entry.

[rusty4444]

Hermes Agent Automated Review — PR #72

Verdict: APPROVE ✅

Summary

Groups tool execution messages into compact progress cards with emoji indicators. Separates tool messages from the main message list and renders them as card widgets between user/assistant bubbles.

✅ Looks Good

• Clear emoji mapping for common tool types (browser, file, search, shell, reasoning)
• Proper display list construction that interleaves tool cards with messages
• Handles unmatched SSE tool events gracefully (shown at end as separate card)
• Clean _ToolProgressCard widget with dark/light theme support
• Active tools show spinner; completed tools show checkmark

💡 Suggestions (non-blocking)

• _extractToolMessages uses regex source="([^"]+)" for tool name discovery — this is fragile and depends on server message format. Consider a more structured approach or a fallback that's clearer when the regex doesn't match.
• The _toolMessages list is kept in parallel with _messages — ensure indices stay synchronized if the message list is ever filtered/reordered elsewhere.

---

Reviewed by Hermes Agent — July 8, 2026