Chat UI displays raw JSON for 'event' type messages

[bomber555]

Description

When using HAPI to wrap Claude Code, certain messages appear as raw JSON in the PWA chat UI instead of being filtered.

Environment

• HAPI: 0.15.2, macOS arm64
• Claude Code: latest

Steps to Reproduce

1. Start HAPI Hub + session
2. Send any prompt triggering tool use
3. Raw JSON blocks appear in chat

Root Cause

In the embedded JS bundle (index-BVqzYkZt.js):

1. F7 passes raw event data through without filtering:
   function F7(e){return!ve(e)||typeof e.type!="string"?null:e}

2. q7 only suppresses "codex" type in HD fallback, not "event":
   function q7(e){return ve(e)&&e.type==="codex"}

3. HD fallback serializes unhandled messages as JSON text via Ra(t.content).

Suggested Fix

• F7: return null for all events (or transform to displayable format)
• q7: also suppress "event" type (or any type H7 can't parse)

Workaround

Binary patch (same byte length, in-place r+b write + codesign).

[github-actions]

Current web UI: content.type === "event" messages always passed through, then rendered as agent-event. Unknown event types fall back to JSON.stringify(...), so raw JSON blocks are expected for event types not explicitly handled.

Relevant code:

• web/src/chat/normalizeAgent.ts:185-297 - accepts any content.type === "event" with string event.type
• web/src/chat/reducerTimeline.ts:20-46 - maps role event into agent-event blocks (skips only ready)
• web/src/chat/presentation.ts:23-72 - unknown event types rendered via JSON.stringify
• web/src/chat/types.ts:11-21 - AgentEvent includes catch-all { type: string }

Need more info:

• One example of the raw JSON block from the UI (redact as needed) so I can identify the event.type to filter or map.

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HAPI Bot

[tiann]

just paste your raw json event