agent-runtime/agent/nodes/output_v1.py
Nico 6f4d26ab82 v0.14.1: Decouple Runtime from WebSocket — persistent server-side runtime
- OutputSink: collects output, optionally streams to attached WS
- Runtime no longer requires WebSocket — works headless for MCP
- WS connects/disconnects via attach_ws()/detach_ws(), runtime persists
- /api/send/check + /api/send (async) + /api/result (poll with progress)
- Graph switch destroys old runtime, next request creates new one
- Director v2 model: claude-opus-4 (was claude-sonnet-4, reserved)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 04:36:28 +02:00

90 lines
3.8 KiB
Python

"""Output Node: renders Thinker's reasoning into device-appropriate responses."""
import json
import logging
from .base import Node
from ..llm import llm_call
from ..types import Command, ThoughtResult
log = logging.getLogger("runtime")
class OutputNode(Node):
name = "output"
model = "google/gemini-2.0-flash-001"
max_context_tokens = 4000
SYSTEM = """You are the Output node — the voice of this cognitive runtime.
YOU ARE TEXT ONLY. Your output goes to a chat bubble. You can use:
- Markdown: **bold**, *italic*, `code`, ```code blocks```, lists, headers
- Emojis when they add warmth or clarity
- Short, structured text (bullet points, numbered lists)
NEVER output HTML, buttons, tables, labels, or any UI elements.
A separate UI node handles all interactive elements — you just speak.
YOUR JOB: Transform the Thinker's reasoning into a natural, human-readable text response.
- NEVER echo internal node names, perceptions, or system details.
- NEVER say "the Thinker decided..." or "I'll process..." — just deliver the answer.
- NEVER apologize excessively. If something didn't work, just fix it and move on. No groveling.
- If the Thinker ran a tool and got output, summarize the results in text.
- If the Thinker gave a direct answer, refine the wording — don't just repeat verbatim.
- Keep the user's language — if they wrote German, respond in German.
- Be concise. Don't describe data that the UI node will show as a table.
{memory_context}"""
async def process(self, thought: ThoughtResult, history: list[dict],
sink, memory_context: str = "") -> str:
"""Render Thinker's output. Streams via sink (OutputSink)."""
await self.hud("streaming")
messages = [
{"role": "system", "content": self.SYSTEM.format(memory_context=memory_context)},
]
for msg in history[-20:]:
messages.append(msg)
# Give Output the Thinker result to render
thinker_ctx = f"Thinker response: {thought.response}"
if thought.tool_used:
if thought.tool_used == "query_db" and thought.tool_output and not thought.tool_output.startswith("Error"):
row_count = max(0, thought.tool_output.count("\n"))
thinker_ctx += f"\n\nTool: query_db returned {row_count} rows (shown as table in workspace). Do NOT repeat the data. Just give a brief summary or insight."
else:
thinker_ctx += f"\n\nTool used: {thought.tool_used}\nTool output:\n{thought.tool_output}"
if thought.actions:
thinker_ctx += f"\n\n(UI buttons shown to user: {', '.join(a.get('label','') for a in thought.actions)})"
messages.append({"role": "system", "content": thinker_ctx})
messages = self.trim_context(messages)
await self.hud("context", messages=messages, tokens=self.last_context_tokens,
max_tokens=self.max_context_tokens, fill_pct=self.context_fill_pct)
client, resp = await llm_call(self.model, messages, stream=True)
full_response = ""
try:
async for line in resp.aiter_lines():
if not line.startswith("data: "):
continue
payload = line[6:]
if payload == "[DONE]":
break
chunk = json.loads(payload)
delta = chunk["choices"][0].get("delta", {})
token = delta.get("content", "")
if token:
full_response += token
await sink.send_delta(token)
finally:
await resp.aclose()
await client.aclose()
log.info(f"[output] response: {full_response[:100]}...")
await sink.send_done()
await self.hud("done")
return full_response