UwfAcpClient now tracks all session/update events:
- agent_message_chunk → assistant message content
- agent_thought_chunk → assistant reasoning
- tool_call → pending tool invocation (name + rawInput)
- tool_call_update (completed/failed) → assistant tool_call + tool result
Messages are accumulated across prompts (same session) and stored
via storeHermesSessionDetail, restoring the full structured detail
(turns with tool calls, reasoning) that was lost in the initial ACP
migration.
Ref #398
The client is now created once in createHermesAgent() and shared by
runHermes and continueHermes closures. This preserves conversation
context during frontmatter retry loops — continue() sends a follow-up
prompt on the same ACP session instead of starting a new one.
Client is cleaned up via process.on('exit').
Ref #398
Replace 250-line custom ACP client with official TypeScript SDK.
Uses ClientSideConnection + ndJsonStream for stdio transport.
Same public API (connect/prompt/close), 115 lines, zero custom protocol code.
Ref #398
Remove spawnHermes, spawnHermesChat, spawnHermesResume, parseSessionId,
and buildResultFromSession. runHermes and continueHermes now use
HermesAcpClient for structured JSON-RPC communication.
Session ID comes directly from ACP protocol, eliminating #380 race
condition. Agent output collected via streaming chunks instead of
session file loading.
Phase 2 of RFC #398Fixes#380
Implements JSON-RPC client that communicates with `hermes acp` via
stdin/stdout. Replaces fragile stdout/stderr parsing with structured
protocol: initialize → session/new → session/prompt → collect chunks.
Session ID comes directly from protocol response, eliminating the
race condition in #380.
Phase 1 of RFC #398