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Session Handoff - 2026-02-23

Session Summary

This session focused on getting the Agent Sentinel demo running locally with Gemini. Multiple issues were fixed but the dashboard still needs debugging — it connects to PubNub but doesn't display signals.

What Was Accomplished

1. Gemini Client Fixes

Fix File Detail
Model name gemini.py, factory.py Changed from retired gemini-2.0-flash-exp → gemini-3-flash-preview
thought_signature gemini.py, agent.py Gemini 3 Flash requires thought_signature echoed back on function call parts. Stash raw parts on LLMResponse._gemini_raw_parts, transfer to Message._gemini_parts, use in _convert_messages()
Retry/backoff gemini.py New _call_with_retry() with exponential backoff (15s→22s→34s→51s→76s) for 429 RESOURCE_EXHAUSTED
ddgs import web_researcher.py, pyproject.toml duckduckgo_search renamed to ddgs — fixed import and dependency

2. PubNub Transport Fix

  • pubnub_transport.py:104: Changed config.uuid → config.user_id (PubNub SDK v10 deprecation)

3. API Key Migration

  • Old free-tier key (REDACTED): Daily quota exhausted
  • New billed key (REDACTED): Works with no rate limits on gemini-3-flash-preview
  • Note: gemini-2.0-flash is blocked for new projects ("no longer available to new users")

4. Dashboard CSS

  • Brightened backgrounds (#0a0e17 → #141c2b), text (#e0e6f0 → #f0f4fa), borders
  • Increased all font sizes by +3px (13→16, 12→15, 11→14, 10→13)
  • Added more PubNub channels (heartbeat + all agent direct channels)

What Is NOT Working / Needs Fixing

Dashboard Signal Display — RESOLVED (2026-02-23 session 2)

  • Was not a JS bug — dashboard code is correct and works perfectly
  • Problem was: no agents were running when testing the dashboard
  • Verified with Chrome MCP: published test signals from Python → dashboard received and displayed them (heartbeats, alerts, map animations, agent status all working)
  • Then ran full 6-agent demo — 35 signals, 10 alerts, all 6 agents online, signal log flowing
  • Zero JS console errors on clean run

PubNub "Handshake failed" Noise — NEEDS INVESTIGATION

  • Cosmetic warning from PubNub SDK v10 EventEngine on Python backend
  • Could not capture backend stderr this session (run.py spawns subprocesses with Popen, stdout/stderr go to terminal not pipe)
  • pubnub_transport.py:118: self._pubnub.stop() needs await (unclosed coroutine warning)
  • Next step: Modify run.py to redirect subprocess output to a log file, or run a single agent with logging to capture the exact errors

DuckDuckGo Flaky

  • ddgs package works but many queries return "No results"
  • Agent hits max_iterations (10) searching for topics that return nothing
  • Not blocking but makes demos less impressive

Verified Working (with proof)

  1. Gemini 3 Flash + billed key: Instant responses, no rate limits
  2. Agent ReAct loop: Tool calls, thought_signature preservation, completion events
  3. PubNub publish+subscribe: Verified end-to-end with Python (publish 200, message received)
  4. 307 unit tests passing: pytest tests/ -v --ignore=tests/integration

Files Modified

File Change
bedsheet/llm/gemini.py Retry/backoff, thought_signature stashing, model default
bedsheet/llm/factory.py Model default gemini-3-flash-preview
bedsheet/agent.py Transfer _gemini_raw_parts to Message
bedsheet/sense/pubnub_transport.py config.uuid → config.user_id
examples/agent-sentinel/agents/web_researcher.py from ddgs import DDGS
examples/agent-sentinel/pyproject.toml ddgs>=7.0.0
examples/agent-sentinel/run.py GEMINI_API_KEY check
docs/agent-sentinel-dashboard.html CSS brightness, font sizes, more channels
CLAUDE.md Gemini references
.claude/rules/dont.md Model rules, no Anthropic for demos

API Keys

  • GEMINI_API_KEY (billed): REDACTED
  • PUBNUB_PUBLISH_KEY: REDACTED
  • PUBNUB_SUBSCRIBE_KEY: REDACTED
  • PUBNUB_SECRET_KEY: REDACTED

GCP Projects

  • gen-lang-client-0477134703 ("sentinel"): AI Studio auto-created, under Google's org — cannot enable billing
  • vertex-claude-api: User's project, Vertex AI enabled, billing NOT linked yet
  • Vertex AI path requires billing — not yet available

Pending Tasks (Priority Order)

  1. Fix dashboard signal display — DONE, was not broken
  2. Fix PubNub backend noise — Capture stderr from agents, fix self._pubnub.stop() await issue
  3. GCP deploy end-to-end — bedsheet generate --target gcp + test
  4. Session stickiness / Redis — Saved for later

Quick Resume

cd /Users/sivan/VitakkaProjects/BedsheetAgents
source .venv/bin/activate

# Set keys
export GEMINI_API_KEY="REDACTED"
export PUBNUB_PUBLISH_KEY="REDACTED"
export PUBNUB_SUBSCRIBE_KEY="REDACTED"

# Run single agent test
python -c "
import sys; sys.path.insert(0, 'examples/agent-sentinel'); sys.path.insert(0, '.')
import asyncio, os
from agents.web_researcher import WebResearcher, research_tools
from bedsheet.llm import make_llm_client
from bedsheet.sense.pubnub_transport import PubNubTransport
async def test():
    transport = PubNubTransport(subscribe_key=os.environ['PUBNUB_SUBSCRIBE_KEY'], publish_key=os.environ['PUBNUB_PUBLISH_KEY'])
    agent = WebResearcher(name='web-researcher', instruction='Search for one AI topic.', model_client=make_llm_client())
    agent.add_action_group(research_tools)
    await agent.join_network(transport, 'agent-sentinel', ['alerts', 'quarantine'])
    async for event in agent.invoke('test-1', 'Search for AI agents news'):
        print(type(event).__name__, flush=True)
    await agent.leave_network()
asyncio.run(test())
"

# Run tests
pytest tests/ -v --ignore=tests/integration

# Open dashboard
open docs/agent-sentinel-dashboard.html

Session ended: 2026-02-23