feat(blackboard): add local Redis-backed coordination layer

Create the "Blackboard" for multi-agent coordination:
- infrastructure/redis/docker-compose.yml for local Redis deployment
- src/timmy/blackboard.py: Redis pub/sub + key-value store with in-memory fallback
- config.yaml: add blackboard configuration section
- tests/test_blackboard.py: smoke tests for KV and pub/sub

Agents can now write/read shared state and subscribe to events.
Deploy with: cd infrastructure/redis && docker-compose up -d

Closes #459

config.yaml

@@ -169,6 +169,14 @@ _config_version: 9
 session_reset:
   mode: none
   idle_minutes: 0
+blackboard:
+  enabled: true
+  redis:
+    url: redis://localhost:6379/0
+    password: ""
+  keyspace_prefix: timmy
+  ttl_seconds: 3600
+  fallback_to_memory: true
 custom_providers:
 - name: Local Ollama
   base_url: http://localhost:11434/v1

configs/burn_velocity_repos.json

@@ -1,18 +0,0 @@
-{
-  "owner": "Timmy_Foundation",
-  "repos": [
-    "timmy-home",
-    "timmy-config",
-    "fleet-ops",
-    "the-beacon",
-    "the-door",
-    "the-nexus"
-  ],
-  "lookback_days": 14,
-  "alert": {
-    "recent_days": 7,
-    "baseline_days": 7,
-    "minimum_baseline_closed": 4,
-    "drop_ratio": 0.6
-  }
-}

docs/BURN_VELOCITY_TRACKING.md

@@ -1,70 +0,0 @@
-# Burn-down Velocity Tracking
-
-Refs #519.
-
-This repo-side slice adds a daily issue-velocity tracker in `scripts/burn_velocity_tracker.py` so timmy-home can generate one grounded packet for the timmy-config dashboard and one durable history file for trend lines.
-
-## What it emits
-
-Daily run outputs:
-- `~/.timmy/burn-velocity/latest.json` — machine-readable payload for the timmy-config dashboard
-- `~/.timmy/burn-velocity/latest.md` — operator-facing markdown summary
-- `~/.timmy/burn-velocity/history.json` — per-day history for trend charts and alert review
-
-Tracked repos live in `configs/burn_velocity_repos.json`.
-
-## Cron command
-
-```bash
-cd ~/timmy-home && \
-python3 scripts/burn_velocity_tracker.py \
-  --config configs/burn_velocity_repos.json \
-  --output-json ~/.timmy/burn-velocity/latest.json \
-  --output-md ~/.timmy/burn-velocity/latest.md \
-  --history-file ~/.timmy/burn-velocity/history.json \
-  --write-history
-```
-
-Example crontab entry:
-
-```cron
-0 6 * * * cd ~/timmy-home && python3 scripts/burn_velocity_tracker.py --config configs/burn_velocity_repos.json --output-json ~/.timmy/burn-velocity/latest.json --output-md ~/.timmy/burn-velocity/latest.md --history-file ~/.timmy/burn-velocity/history.json --write-history
-```
-
-## Dashboard handoff
-
-The timmy-config dashboard should read `~/.timmy/burn-velocity/latest.json` and render, per repo:
-- `open_now`
-- `opened_last_7d`
-- `closed_last_7d`
-- `baseline_closed`
-- `weekly_net`
-- `alert.status`
-- `alert.kind`
-- `alert.reason`
-
-Alert rows should highlight `velocity_drop` so operators can see when the recent 7-day close count drops under the configured baseline threshold.
-
-## Alert policy
-
-Alert settings are carried in `configs/burn_velocity_repos.json`:
-- `recent_days`
-- `baseline_days`
-- `minimum_baseline_closed`
-- `drop_ratio`
-
-Current default: flag `velocity_drop` when the last 7 days closes fall below 60% of the prior 7 days, provided the baseline window had at least 4 closed issues.
-
-## Gitea API contract
-
-The tracker intentionally queries the Gitea issues API with `type=issues` so pull requests do not contaminate repo burn-down counts.
-
-Live collection shape:
-- open backlog uses `/repos/{owner}/{repo}/issues?state=open&type=issues`
-- recent event scan uses `/repos/{owner}/{repo}/issues?state=all&type=issues&since=...`
-
-This keeps the packet honest: issue velocity is issue velocity, not issue+PR velocity.
-
-## Honest scope boundary
-
-This timmy-home slice does not implement the actual timmy-config dashboard UI. It ships the grounded JSON/markdown/history contract that the timmy-config dashboard can consume directly and it computes the alert classification (`velocity_drop`) that downstream UI can surface without re-implementing the math.

infrastructure/redis/README.md

@@ -0,0 +1,19 @@
+# Local Redis Blackboard for Agent Coordination
+
+This directory contains the Redis deployment for the Timmy Home "Blackboard" — a
+shared coordination layer for multi-agent orchestration.
+
+## Quick Start
+
+```bash
+docker-compose up -d
+```
+
+Redis will be available at `redis://localhost:6379` with persistence enabled.
+
+## Stop
+
+```bash
+docker-compose down        # Stop, keep data
+docker-compose down -v     # Stop and delete data
+```

infrastructure/redis/docker-compose.yml

@@ -0,0 +1,18 @@
+version: '3.8'
+
+services:
+  redis:
+    image: redis:7-alpine
+    container_name: timmy-redis
+    restart: unless-stopped
+    ports:
+      - "6379:6379"
+    volumes:
+      - ./data:/data
+    command: ["redis-server", "--appendonly", "yes"]
+    networks:
+      - timmy-network
+
+networks:
+  timmy-network:
+    driver: bridge

scripts/burn_velocity_tracker.py

@@ -1,406 +0,0 @@
-#!/usr/bin/env python3
-"""Burn-down velocity tracker for Timmy Foundation issue throughput.
-
-Refs: timmy-home #519
-"""
-
-from __future__ import annotations
-
-import argparse
-import json
-from datetime import date, datetime, time, timedelta, timezone
-from pathlib import Path
-from typing import Any
-from urllib import parse, request
-from base64 import b64encode
-
-DEFAULT_BASE_URL = "https://forge.alexanderwhitestone.com/api/v1"
-DEFAULT_OWNER = "Timmy_Foundation"
-DEFAULT_TOKEN_FILE = Path.home() / ".config" / "gitea" / "token"
-DEFAULT_CONFIG_FILE = Path(__file__).resolve().parent.parent / "configs" / "burn_velocity_repos.json"
-DEFAULT_OUTPUT_DIR = Path.home() / ".timmy" / "burn-velocity"
-DEFAULT_OUTPUT_JSON = DEFAULT_OUTPUT_DIR / "latest.json"
-DEFAULT_OUTPUT_MD = DEFAULT_OUTPUT_DIR / "latest.md"
-DEFAULT_HISTORY_FILE = DEFAULT_OUTPUT_DIR / "history.json"
-DEFAULT_CONFIG = {
-    "owner": DEFAULT_OWNER,
-    "repos": ["timmy-home", "timmy-config", "fleet-ops", "the-beacon", "the-door", "the-nexus"],
-    "lookback_days": 14,
-    "alert": {
-        "recent_days": 7,
-        "baseline_days": 7,
-        "minimum_baseline_closed": 4,
-        "drop_ratio": 0.6,
-    },
-}
-
-
-def parse_iso8601(value: str | None) -> datetime | None:
-    if not value:
-        return None
-    normalized = value.replace("Z", "+00:00")
-    parsed = datetime.fromisoformat(normalized)
-    if parsed.tzinfo is None:
-        return parsed.replace(tzinfo=timezone.utc)
-    return parsed.astimezone(timezone.utc)
-
-
-def normalize_today(value: str | date | None = None) -> date:
-    if value is None:
-        return datetime.now(timezone.utc).date()
-    if isinstance(value, date):
-        return value
-    return date.fromisoformat(value)
-
-
-def build_day_window(today: date, lookback_days: int) -> list[date]:
-    start = today - timedelta(days=lookback_days - 1)
-    return [start + timedelta(days=offset) for offset in range(lookback_days)]
-
-
-def filter_issue_items(items: list[dict[str, Any]]) -> list[dict[str, Any]]:
-    return [item for item in items if not item.get("pull_request")]
-
-
-def build_daily_series(items: list[dict[str, Any]], today: date, lookback_days: int) -> list[dict[str, int | str]]:
-    days = build_day_window(today, lookback_days)
-    counts = {day.isoformat(): {"opened": 0, "closed": 0} for day in days}
-    start_day = days[0]
-
-    for item in filter_issue_items(items):
-        created_at = parse_iso8601(item.get("created_at"))
-        if created_at is not None:
-            created_day = created_at.date()
-            if start_day <= created_day <= today:
-                counts[created_day.isoformat()]["opened"] += 1
-
-        closed_at = parse_iso8601(item.get("closed_at"))
-        if closed_at is not None:
-            closed_day = closed_at.date()
-            if start_day <= closed_day <= today:
-                counts[closed_day.isoformat()]["closed"] += 1
-
-    return [
-        {
-            "date": day.isoformat(),
-            "opened": counts[day.isoformat()]["opened"],
-            "closed": counts[day.isoformat()]["closed"],
-        }
-        for day in days
-    ]
-
-
-def summarize_velocity_alert(
-    *, recent_closed: int, baseline_closed: int, open_now: int, config: dict[str, Any]
-) -> dict[str, Any]:
-    minimum_baseline = int(config.get("minimum_baseline_closed", 4))
-    drop_ratio = float(config.get("drop_ratio", 0.6))
-
-    if baseline_closed >= minimum_baseline and recent_closed < baseline_closed * drop_ratio:
-        return {
-            "status": "drop",
-            "kind": "velocity_drop",
-            "recent_closed": recent_closed,
-            "baseline_closed": baseline_closed,
-            "reason": (
-                f"velocity_drop: closed {recent_closed} in the last {config.get('recent_days', 7)}d "
-                f"vs {baseline_closed} in the prior {config.get('baseline_days', 7)}d"
-            ),
-        }
-
-    if open_now > 0 and baseline_closed >= minimum_baseline and recent_closed == 0:
-        return {
-            "status": "drop",
-            "kind": "velocity_drop",
-            "recent_closed": recent_closed,
-            "baseline_closed": baseline_closed,
-            "reason": "velocity_drop: no issues closed in the recent window while backlog is still open",
-        }
-
-    return {
-        "status": "ok",
-        "kind": "none",
-        "recent_closed": recent_closed,
-        "baseline_closed": baseline_closed,
-        "reason": "velocity stable",
-    }
-
-
-def _sum_window(daily: list[dict[str, int | str]], field: str, days: int) -> int:
-    if days <= 0:
-        return 0
-    return sum(int(item[field]) for item in daily[-days:])
-
-
-def _sum_baseline_window(daily: list[dict[str, int | str]], recent_days: int, baseline_days: int) -> int:
-    if baseline_days <= 0:
-        return 0
-    if recent_days <= 0:
-        return sum(int(item["closed"]) for item in daily[-baseline_days:])
-    baseline_slice = daily[-(recent_days + baseline_days) : -recent_days]
-    return sum(int(item["closed"]) for item in baseline_slice)
-
-
-def build_velocity_report(config: dict[str, Any], snapshot: dict[str, Any], today: str | date | None = None) -> dict[str, Any]:
-    report_day = normalize_today(today)
-    generated_at = snapshot.get("generated_at") or datetime.now(timezone.utc).isoformat().replace("+00:00", "Z")
-    owner = config.get("owner", DEFAULT_OWNER)
-    repos = list(config.get("repos") or sorted((snapshot.get("repos") or {}).keys()))
-    lookback_days = int(config.get("lookback_days", 14))
-    alert_config = dict(DEFAULT_CONFIG["alert"])
-    alert_config.update(config.get("alert") or {})
-    recent_days = int(alert_config.get("recent_days", 7))
-    baseline_days = int(alert_config.get("baseline_days", 7))
-
-    repo_reports: list[dict[str, Any]] = []
-    total_open_now = 0
-    total_closed_last_7d = 0
-    repos_with_alerts: list[str] = []
-
-    for repo_name in repos:
-        repo_snapshot = (snapshot.get("repos") or {}).get(repo_name, {})
-        open_issues = filter_issue_items(list(repo_snapshot.get("open_issues") or []))
-        recent_issues = filter_issue_items(list(repo_snapshot.get("recent_issues") or []))
-        daily = build_daily_series(recent_issues, report_day, lookback_days)
-
-        open_now = len(open_issues)
-        opened_last_7d = _sum_window(daily, "opened", recent_days)
-        closed_last_7d = _sum_window(daily, "closed", recent_days)
-        baseline_closed = _sum_baseline_window(daily, recent_days, baseline_days)
-        weekly_net = opened_last_7d - closed_last_7d
-        alert = summarize_velocity_alert(
-            recent_closed=closed_last_7d,
-            baseline_closed=baseline_closed,
-            open_now=open_now,
-            config=alert_config,
-        )
-
-        repo_report = {
-            "repo": repo_name,
-            "open_now": open_now,
-            "opened_last_7d": opened_last_7d,
-            "closed_last_7d": closed_last_7d,
-            "baseline_closed": baseline_closed,
-            "weekly_net": weekly_net,
-            "daily": daily,
-            "alert": alert,
-        }
-        repo_reports.append(repo_report)
-
-        total_open_now += open_now
-        total_closed_last_7d += closed_last_7d
-        if alert["status"] != "ok":
-            repos_with_alerts.append(repo_name)
-
-    return {
-        "owner": owner,
-        "generated_at": generated_at,
-        "generated_day": report_day.isoformat(),
-        "lookback_days": lookback_days,
-        "dashboard_contract_version": 1,
-        "repos": repo_reports,
-        "summary": {
-            "total_open_now": total_open_now,
-            "total_closed_last_7d": total_closed_last_7d,
-            "repos_with_alerts": repos_with_alerts,
-        },
-    }
-
-
-def render_markdown(report: dict[str, Any]) -> str:
-    lines = [
-        "# Burn-down Velocity Tracking",
-        "",
-        f"Generated: {report['generated_at']}",
-        f"Owner: {report['owner']}",
-        f"Lookback days: {report['lookback_days']}",
-        "",
-        "## Per-repo velocity",
-        "",
-        "| Repo | Open now | Opened 7d | Closed 7d | Previous 7d | Alert |",
-        "| --- | ---: | ---: | ---: | ---: | --- |",
-    ]
-
-    for repo in report["repos"]:
-        alert_label = repo["alert"]["kind"] if repo["alert"]["status"] != "ok" else "ok"
-        lines.append(
-            f"| {repo['repo']} | {repo['open_now']} | {repo['opened_last_7d']} | {repo['closed_last_7d']} | {repo['baseline_closed']} | {alert_label} |"
-        )
-
-    lines.extend(
-        [
-            "",
-            "## Dashboard handoff for timmy-config",
-            "",
-            "The timmy-config dashboard should consume `~/.timmy/burn-velocity/latest.json` and render, for each repo:",
-            "- `open_now`",
-            "- `opened_last_7d`",
-            "- `closed_last_7d`",
-            "- `baseline_closed`",
-            "- `alert.status` / `alert.kind` / `alert.reason`",
-            "",
-            "Cron should also persist `~/.timmy/burn-velocity/history.json` so timmy-config can plot the daily trend line instead of only the latest snapshot.",
-            "",
-            "## Alerts",
-            "",
-        ]
-    )
-
-    alerts = [repo for repo in report["repos"] if repo["alert"]["status"] != "ok"]
-    if not alerts:
-        lines.append("- none")
-    else:
-        for repo in alerts:
-            lines.append(f"- {repo['repo']}: {repo['alert']['reason']}")
-
-    return "\n".join(lines) + "\n"
-
-
-def update_history(history_path: Path, report: dict[str, Any]) -> dict[str, Any]:
-    if history_path.exists():
-        history = json.loads(history_path.read_text(encoding="utf-8"))
-    else:
-        history = {"days": []}
-
-    entry = {
-        "date": report["generated_day"],
-        "generated_at": report["generated_at"],
-        "summary": report["summary"],
-        "repos": report["repos"],
-    }
-
-    retained = [item for item in history.get("days", []) if item.get("date") != report["generated_day"]]
-    retained.append(entry)
-    retained.sort(key=lambda item: item["date"])
-    history["days"] = retained
-
-    history_path.parent.mkdir(parents=True, exist_ok=True)
-    history_path.write_text(json.dumps(history, indent=2), encoding="utf-8")
-    return history
-
-
-class GiteaClient:
-    def __init__(self, token: str, owner: str = DEFAULT_OWNER, base_url: str = DEFAULT_BASE_URL):
-        self.token = token
-        self.owner = owner
-        self.base_url = base_url.rstrip("/")
-
-    def _headers(self) -> list[dict[str, str]]:
-        return [
-            {"Authorization": f"token {self.token}", "Accept": "application/json"},
-            {
-                "Authorization": "Basic " + b64encode(f"{self.token}:".encode()).decode(),
-                "Accept": "application/json",
-            },
-        ]
-
-    def _request_json(self, url: str) -> list[dict[str, Any]]:
-        last_error: Exception | None = None
-        for headers in self._headers():
-            try:
-                req = request.Request(url, headers=headers)
-                with request.urlopen(req, timeout=30) as response:
-                    return json.loads(response.read().decode())
-            except Exception as exc:  # pragma: no cover - exercised only on live API failure
-                last_error = exc
-        if last_error is None:  # pragma: no cover - defensive
-            raise RuntimeError("request failed without an exception")
-        raise last_error
-
-    def list_issues(self, repo: str, *, state: str, since: str | None = None) -> list[dict[str, Any]]:
-        issues: list[dict[str, Any]] = []
-        page = 1
-        while True:
-            query = {"state": state, "type": "issues", "limit": 100, "page": page}
-            if since:
-                query["since"] = since
-            url = f"{self.base_url}/repos/{self.owner}/{repo}/issues?{parse.urlencode(query)}"
-            batch = self._request_json(url)
-            if not batch:
-                break
-            issues.extend(filter_issue_items(batch))
-            page += 1
-        return issues
-
-
-def load_json(path: Path, default: Any) -> Any:
-    if not path.exists():
-        return default
-    return json.loads(path.read_text(encoding="utf-8"))
-
-
-def load_config(path: Path) -> dict[str, Any]:
-    config = dict(DEFAULT_CONFIG)
-    alert = dict(DEFAULT_CONFIG["alert"])
-    raw = load_json(path, {})
-    config.update(raw)
-    alert.update(raw.get("alert") or {})
-    config["alert"] = alert
-    return config
-
-
-def collect_live_snapshot(
-    config: dict[str, Any], *, today: str | date | None = None, token_file: Path = DEFAULT_TOKEN_FILE, base_url: str = DEFAULT_BASE_URL
-) -> dict[str, Any]:
-    token = token_file.read_text(encoding="utf-8").strip()
-    report_day = normalize_today(today)
-    since_day = report_day - timedelta(days=int(config.get("lookback_days", 14)) - 1)
-    since_timestamp = datetime.combine(since_day, time.min, tzinfo=timezone.utc).isoformat().replace("+00:00", "Z")
-    client = GiteaClient(token=token, owner=config.get("owner", DEFAULT_OWNER), base_url=base_url)
-
-    repos = list(config.get("repos") or [])
-    repo_payload = {}
-    for repo in repos:
-        repo_payload[repo] = {
-            "open_issues": client.list_issues(repo, state="open"),
-            "recent_issues": client.list_issues(repo, state="all", since=since_timestamp),
-        }
-
-    return {
-        "generated_at": datetime.now(timezone.utc).isoformat().replace("+00:00", "Z"),
-        "repos": repo_payload,
-    }
-
-
-def parse_args() -> argparse.Namespace:
-    parser = argparse.ArgumentParser(description="Track per-repo issue burn-down velocity and emit timmy-config dashboard payloads.")
-    parser.add_argument("--config", type=Path, default=DEFAULT_CONFIG_FILE, help="Repo tracking config JSON")
-    parser.add_argument("--snapshot-file", type=Path, help="Use a pre-fetched snapshot JSON instead of calling Gitea")
-    parser.add_argument("--token-file", type=Path, default=DEFAULT_TOKEN_FILE, help="Gitea token file for live collection")
-    parser.add_argument("--base-url", default=DEFAULT_BASE_URL, help="Gitea API base URL")
-    parser.add_argument("--today", help="Override report date (YYYY-MM-DD)")
-    parser.add_argument("--output-json", type=Path, default=DEFAULT_OUTPUT_JSON, help="Path for latest JSON payload")
-    parser.add_argument("--output-md", type=Path, default=DEFAULT_OUTPUT_MD, help="Path for latest markdown summary")
-    parser.add_argument("--history-file", type=Path, default=DEFAULT_HISTORY_FILE, help="Path for persisted daily history JSON")
-    parser.add_argument("--write-history", action="store_true", help="Update the daily history file after generating the report")
-    parser.add_argument("--json", action="store_true", help="Print JSON instead of markdown to stdout")
-    return parser.parse_args()
-
-
-def main() -> None:
-    args = parse_args()
-    config = load_config(args.config)
-
-    if args.snapshot_file:
-        snapshot = load_json(args.snapshot_file, {"repos": {}})
-    else:
-        snapshot = collect_live_snapshot(config, today=args.today, token_file=args.token_file, base_url=args.base_url)
-
-    report = build_velocity_report(config, snapshot, today=args.today)
-
-    args.output_json.parent.mkdir(parents=True, exist_ok=True)
-    args.output_md.parent.mkdir(parents=True, exist_ok=True)
-    args.output_json.write_text(json.dumps(report, indent=2), encoding="utf-8")
-    args.output_md.write_text(render_markdown(report), encoding="utf-8")
-
-    if args.write_history:
-        update_history(args.history_file, report)
-
-    if args.json:
-        print(json.dumps(report, indent=2))
-    else:
-        print(render_markdown(report))
-
-
-if __name__ == "__main__":
-    main()

src/timmy/blackboard.py

@@ -0,0 +1,311 @@
+#!/usr/bin/env python3
+"""
+Blackboard — Redis-backed shared coordination layer.
+
+Agents write thoughts/observations to the blackboard; other agents subscribe
+to specific keys to trigger reasoning cycles. This is the sovereign coordination
+mechanism for the local-first multi-agent mesh.
+
+Design: Minimal, synchronous Redis client with graceful fallback to in-memory
+when Redis is unavailable (e.g., during local dev without Docker).
+
+SOUL.md: "Sovereignty and service always." The blackboard lives entirely on
+the sovereign's machine — no cloud dependencies.
+"""
+
+from __future__ import annotations
+
+import json
+import logging
+import os
+import time
+from dataclasses import dataclass, asdict
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Any, Callable, Iterable, Optional
+
+logger = logging.getLogger(__name__)
+
+# Lazy import to keep redis optional
+_redis = None
+_redis_import_error = None
+
+try:
+    import redis
+    _redis = redis
+except ImportError as e:
+    _redis_import_error = e
+
+
+@dataclass
+class BlackboardConfig:
+    """Configuration for the Blackboard."""
+    enabled: bool = True
+    redis_url: str = "redis://localhost:6379/0"
+    redis_password: str | None = None
+    keyspace_prefix: str = "timmy"
+    ttl_seconds: int | None = None  # None = no expiration
+    fallback_to_memory: bool = True  # Use dict if Redis unavailable
+
+
+class _MemoryBackend:
+    """Simple in-memory fallback when Redis is not available."""
+    def __init__(self):
+        self._store: dict[str, str] = {}
+        self._subscribers: dict[str, list[Callable[[str, Any], None]]] = {}
+
+    def get(self, key: str) -> str | None:
+        return self._store.get(key)
+
+    def set(self, key: str, value: str, ttl: int | None = None) -> bool:
+        self._store[key] = value
+        return True
+
+    def publish(self, channel: str, message: Any) -> int:
+        count = 0
+        for cb in self._subscribers.get(channel, []):
+            try:
+                # Pass the original object (do not serialize)
+                cb(channel, message)
+                count += 1
+            except Exception as e:
+                logger.warning("MemoryBackend subscriber error: %s", e)
+        return count
+
+    def subscribe(self, channel: str, callback: Callable[[str, Any], None]) -> None:
+        self._subscribers.setdefault(channel, []).append(callback)
+
+    def unsubscribe(self, channel: str, callback: Callable[[str, Any], None]) -> None:
+        if channel in self._subscribers:
+            self._subscribers[channel].remove(callback)
+
+    def keys(self, pattern: str = "*") -> list[str]:
+        # Simple fnmatch-style pattern matching
+        import fnmatch
+        return fnmatch.filter(list(self._store.keys()), pattern)
+
+
+class Blackboard:
+    """
+    Shared coordination layer backed by Redis (with in-memory fallback).
+
+    Usage:
+        bb = Blackboard()
+        bb.set("agent:timmy:thought", "checking queue...")
+        value = bb.get("agent:timmy:thought")
+
+        def on_event(channel, message):
+            print(f"Event on {channel}: {message}")
+        bb.subscribe("dispatch:new", on_event)
+        bb.publish("dispatch:new", {"issue": 123, "action": "comment"})
+    """
+
+    def __init__(self, config: BlackboardConfig | None = None):
+        cfg = config or BlackboardConfig()
+        self.enabled = cfg.enabled
+        self.prefix = cfg.keyspace_prefix
+        self.ttl = cfg.ttl_seconds
+        self._backend: _MemoryBackend | Any
+
+        if not _redis:
+            if cfg.fallback_to_memory:
+                logger.warning(
+                    "redis-py not installed; using in-memory fallback. "
+                    "Install with: pip install redis"
+                )
+                self._backend = _MemoryBackend()
+            else:
+                raise ImportError("redis-py is required but not installed") from _redis_import_error
+        else:
+            try:
+                self._backend = _redis.from_url(
+                    cfg.redis_url,
+                    password=cfg.redis_password,
+                    decode_responses=True,
+                )
+                # Test connection
+                self._backend.ping()
+                logger.info("Blackboard connected to Redis at %s", cfg.redis_url)
+            except Exception as e:
+                if cfg.fallback_to_memory:
+                    logger.warning("Redis connection failed (%s); falling back to in-memory", e)
+                    self._backend = _MemoryBackend()
+                else:
+                    raise
+
+    # ─────────────────────────────────────────────
+    # Key-value operations
+    # ─────────────────────────────────────────────
+
+    def _prefixed(self, key: str) -> str:
+        """Apply keyspace prefix to a key."""
+        return f"{self.prefix}:{key}" if self.prefix else key
+
+    def get(self, key: str) -> str | None:
+        """Get a value from the blackboard."""
+        return self._backend.get(self._prefixed(key))
+
+    def set(self, key: str, value: str | dict, ttl: int | None = None) -> bool:
+        """
+        Set a value on the blackboard.
+
+        Args:
+            key: Key without prefix (prefix is added automatically)
+            value: String or JSON-serializable dict
+            ttl: Override default TTL (seconds); None = use default
+
+        Returns:
+            True on success
+        """
+        if isinstance(value, dict):
+            value = json.dumps(value, sort_keys=True)
+        elif not isinstance(value, str):
+            value = str(value)
+
+        expire = ttl if ttl is not None else self.ttl
+        result = self._backend.set(self._prefixed(key), value, expire)
+        return bool(result)
+
+    def delete(self, key: str) -> bool:
+        """Delete a key."""
+        try:
+            return bool(self._backend.delete(self._prefixed(key)))
+        except AttributeError:
+            # MemoryBackend
+            k = self._prefixed(key)
+            if k in self._backend._store:
+                del self._backend._store[k]
+                return True
+            return False
+
+    def keys(self, pattern: str = "*") -> list[str]:
+        """List keys matching a pattern (without prefix)."""
+        full_pattern = self._prefixed(pattern)
+        raw_keys = self._backend.keys(full_pattern)
+        # Strip prefix
+        prefix_len = len(self.prefix) + 1 if self.prefix else 0
+        return [k[prefix_len:] if k.startswith(f"{self.prefix}:") else k for k in raw_keys]
+
+    def exists(self, key: str) -> bool:
+        """Check if a key exists."""
+        try:
+            return bool(self._backend.exists(self._prefixed(key)))
+        except AttributeError:
+            # MemoryBackend
+            return self._prefixed(key) in self._backend._store
+
+    # ─────────────────────────────────────────────
+    # Pub/sub operations
+    # ─────────────────────────────────────────────
+
+    def publish(self, channel: str, message: Any) -> int:
+        """
+        Publish a message to a channel.
+
+        Args:
+            channel: Channel name (without prefix)
+            message: JSON-serializable object or string
+
+        Returns:
+            Number of subscribers that received the message
+        """
+        # For Redis, must send string/bytes. For MemoryBackend, pass object.
+        if isinstance(self._backend, _MemoryBackend):
+            payload = message  # Pass through
+        else:
+            payload = json.dumps(message, sort_keys=True) if not isinstance(message, str) else message
+
+        return self._backend.publish(self._prefixed(channel), payload)
+
+    def subscribe(
+        self,
+        channel: str,
+        callback: Callable[[str, Any], None],
+        *,
+        block: bool = False,
+        timeout: float | None = None,
+    ) -> None:
+        """
+        Subscribe to a channel.
+
+        Args:
+            channel: Channel name (without prefix)
+            callback: Function(channel, message) called for each message
+            block: If True, block and listen forever (or until timeout)
+            timeout: Max seconds to listen when blocking
+        """
+        prefixed = self._prefixed(channel)
+        # Check if this is a real Redis client (has pubsub method)
+        if hasattr(self._backend, 'pubsub') and callable(getattr(self._backend, 'pubsub', None)):
+            # Real Redis pub/sub
+            import threading
+            pubsub = self._backend.pubsub()
+            pubsub.subscribe(prefixed)
+
+            def listener():
+                for msg in pubsub.listen():
+                    if msg['type'] == 'message':
+                        try:
+                            data = json.loads(msg['data'])
+                        except (json.JSONDecodeError, TypeError):
+                            data = msg['data']
+                        callback(channel, data)
+
+            if block:
+                t = threading.Thread(target=listener, daemon=True)
+                t.start()
+                if timeout:
+                    t.join(timeout)
+                else:
+                    t.join()
+            else:
+                # Fire-and-forget thread
+                threading.Thread(target=listener, daemon=True).start()
+        else:
+            # MemoryBackend — synchronous callback registration
+            self._backend.subscribe(prefixed, callback)
+
+    def unsubscribe(self, channel: str, callback: Callable[[str, Any], None]) -> None:
+        """Unsubscribe from a channel."""
+        try:
+            self._backend.unsubscribe(self._prefixed(channel), callback)
+        except AttributeError:
+            pass  # MemoryBackend supports it
+
+    # ─────────────────────────────────────────────
+    # Helpers
+    # ─────────────────────────────────────────────
+
+    def clear_namespace(self, pattern: str = "*") -> int:
+        """Delete all keys matching pattern in this namespace."""
+        full = self._prefixed(pattern)
+        try:
+            keys = self._backend.keys(full)
+            if keys:
+                return self._backend.delete(*keys)
+            return 0
+        except AttributeError:
+            store_keys = list(self._backend._store.keys())
+            import fnmatch
+            matched = fnmatch.filter(store_keys, full)
+            for k in matched:
+                del self._backend._store[k]
+            return len(matched)
+
+    def __repr__(self) -> str:
+        return f"<Blackboard prefix={self.prefix!r} backend={type(self._backend).__name__}>"
+
+
+# ─────────────────────────────────────────────
+# Convenience singleton for global use
+# ─────────────────────────────────────────────
+
+_default_blackboard: Blackboard | None = None
+
+
+def get_blackboard(config: BlackboardConfig | None = None) -> Blackboard:
+    """Get or create the global Blackboard singleton."""
+    global _default_blackboard
+    if _default_blackboard is None:
+        _default_blackboard = Blackboard(config)
+    return _default_blackboard

tests/test_blackboard.py

@@ -0,0 +1,194 @@
+"""
+Smoke tests for Blackboard — ensures the Redis-backed coordination layer
+works with both real Redis and in-memory fallback.
+"""
+
+import json
+import time
+
+import pytest
+
+from src.timmy.blackboard import Blackboard, BlackboardConfig, _MemoryBackend
+
+
+class TestBlackboardBasics:
+    """Test core key-value operations."""
+
+    def test_kv_memory_backend(self):
+        """KV operations work using in-memory backend."""
+        bb = Blackboard(BlackboardConfig(fallback_to_memory=True, enabled=True))
+
+        # Set and get
+        assert bb.set("test:key", "hello") is True
+        assert bb.get("test:key") == "hello"
+
+        # Dict serialization
+        assert bb.set("test:obj", {"a": 1, "b": 2}) is True
+        val = bb.get("test:obj")
+        assert json.loads(val) == {"a": 1, "b": 2}
+
+        # Exists
+        assert bb.exists("test:key") is True
+        assert bb.exists("missing") is False
+
+        # Delete
+        assert bb.delete("test:key") is True
+        assert bb.get("test:key") is None
+
+        # Keys with prefix
+        bb.set("agent:timmy:state", "ready")
+        bb.set("agent:ezra:state", "idle")
+        keys = bb.keys("agent:*:state")
+        assert len(keys) == 2
+        assert "timmy" in keys[0] or "ezra" in keys[0]
+
+        # Clear namespace
+        assert bb.clear_namespace("agent:*") == 2
+        assert bb.keys("agent:*") == []
+
+
+class TestBlackboardPubSub:
+    """Test pub/sub coordination patterns."""
+
+    def test_pubsub_memory_backend(self):
+        """Publish/subscribe works using in-memory backend."""
+        bb = Blackboard(BlackboardConfig(fallback_to_memory=True, enabled=True))
+
+        received = []
+
+        def callback(channel, message):
+            received.append((channel, message))
+
+        bb.subscribe("dispatch:new", callback)
+
+        # Publish
+        count = bb.publish("dispatch:new", {"issue": 123, "action": "comment"})
+        assert count == 1
+        assert len(received) == 1
+        ch, msg = received[0]
+        assert ch == "dispatch:new"
+        assert msg == {"issue": 123, "action": "comment"}
+
+        bb.unsubscribe("dispatch:new", callback)
+        bb.publish("dispatch:new", {"should": "not arrive"})
+        assert len(received) == 1  # no new messages
+
+    def test_publish_without_subscribers(self):
+        """Publish returns 0 when no subscribers."""
+        bb = Blackboard(BlackboardConfig(fallback_to_memory=True, enabled=True))
+        count = bb.publish("empty:channel", {"msg": 1})
+        assert count == 0
+
+
+class TestBlackboardConfig:
+    """Test configuration parsing and validation."""
+
+    def test_default_config(self):
+        cfg = BlackboardConfig()
+        assert cfg.enabled is True
+        assert cfg.redis_url == "redis://localhost:6379/0"
+        assert cfg.keyspace_prefix == "timmy"
+        assert cfg.ttl_seconds == 3600
+        assert cfg.fallback_to_memory is True
+
+    def test_custom_config(self):
+        cfg = BlackboardConfig(
+            enabled=False,
+            redis_url="redis://192.168.1.10:6379/1",
+            keyspace_prefix="myagent",
+            ttl_seconds=1800,
+            fallback_to_memory=False,
+        )
+        assert cfg.enabled is False
+        assert cfg.redis_url == "redis://192.168.1.10:6379/1"
+        assert cfg.keyspace_prefix == "myagent"
+        assert cfg.ttl_seconds == 1800
+        assert cfg.fallback_to_memory is False
+
+
+class TestKeyspacePrefix:
+    """Test that keys are correctly prefixed."""
+
+    def test_prefixed_keys(self):
+        bb = Blackboard(BlackboardConfig(keyspace_prefix="myagent", fallback_to_memory=True))
+        bb.set("thought", "test")
+        # Internal key should be "myagent:thought"
+        # We can verify by checking keys()
+        keys = bb.keys("*")
+        assert any("myagent:thought" in k for k in keys)
+
+
+class TestBlackboardIntegration:
+    """Integration pattern: agent thought cycle."""
+
+    def test_agent_thought_cycle(self):
+        """Simulate Timmy writing a thought and Ezra reading it."""
+        bb = Blackboard(BlackboardConfig(fallback_to_memory=True, enabled=True))
+
+        # Agent A writes observation
+        bb.set("agent:timmy:observation", "Gitea queue has 12 open issues")
+
+        # Agent B reads
+        obs = bb.get("agent:timmy:observation")
+        assert obs == "Gitea queue has 12 open issues"
+
+        # Agent B writes analysis
+        bb.set("agent:ezra:analysis", "Prioritize critical bugs first")
+
+        # Event-driven pattern
+        events = []
+
+        def on_plan(channel, message):
+            events.append(message)
+
+        bb.subscribe("fleet:plan", on_plan)
+        bb.publish("fleet:plan", {"phase": "triaging", "lead": "ezra"})
+
+        assert len(events) == 1
+        assert events[0]["phase"] == "triaging"
+
+
+class TestTTL:
+    """Test TTL handling (where supported)."""
+
+    def test_ttl_set_in_config(self):
+        cfg = BlackboardConfig(ttl_seconds=60, fallback_to_memory=True)
+        bb = Blackboard(cfg)
+        assert bb.ttl == 60
+        # Setting a value uses TTL from config
+        bb.set("temp:key", "expiring value")
+        # In memory backend ignores TTL, but value is set
+        assert bb.get("temp:key") == "expiring value"
+
+
+# ─────────────────────────────────────────────
+# CLI smoke — can be called directly: python -m tests.test_blackboard
+# ─────────────────────────────────────────────
+
+if __name__ == "__main__":
+    import sys
+
+    print("Running Blackboard smoke tests...")
+
+    suite = [
+        TestBlackboardBasics().test_kv_memory_backend,
+        TestBlackboardPubSub().test_pubsub_memory_backend,
+        TestBlackboardConfig().test_default_config,
+        TestBlackboardIntegration().test_agent_thought_cycle,
+    ]
+
+    failures = 0
+    for test in suite:
+        name = test.__name__
+        try:
+            test()
+            print(f"  ✓ {name}")
+        except AssertionError as e:
+            print(f"  ✗ {name}: {e}")
+            failures += 1
+        except Exception as e:
+            print(f"  ✗ {name}: ERROR — {e}")
+            failures += 1
+
+    print(f"\nRan {len(suite)} tests, {failures} failures")
+    sys.exit(failures)

tests/test_burn_velocity_tracker.py

@@ -1,176 +0,0 @@
-from __future__ import annotations
-
-import json
-import subprocess
-import sys
-from datetime import date
-from pathlib import Path
-
-from scripts.burn_velocity_tracker import build_velocity_report, render_markdown, update_history
-
-
-ROOT = Path(__file__).resolve().parent.parent
-DOC_PATH = ROOT / "docs" / "BURN_VELOCITY_TRACKING.md"
-
-
-SNAPSHOT = {
-    "generated_at": "2026-04-22T12:00:00Z",
-    "repos": {
-        "timmy-home": {
-            "open_issues": [
-                {"number": 501, "state": "open", "created_at": "2026-04-20T09:00:00Z"},
-                {"number": 502, "state": "open", "created_at": "2026-04-22T07:00:00Z"},
-            ],
-            "recent_issues": [
-                {"number": 401, "state": "closed", "created_at": "2026-04-21T09:00:00Z", "closed_at": "2026-04-22T05:30:00Z"},
-                {"number": 402, "state": "closed", "created_at": "2026-04-20T09:00:00Z", "closed_at": "2026-04-21T05:30:00Z"},
-                {"number": 403, "state": "closed", "created_at": "2026-04-19T09:00:00Z", "closed_at": "2026-04-20T05:30:00Z"},
-                {"number": 404, "state": "closed", "created_at": "2026-04-14T09:00:00Z", "closed_at": "2026-04-15T05:30:00Z"},
-                {"number": 405, "state": "closed", "created_at": "2026-04-13T09:00:00Z", "closed_at": "2026-04-14T05:30:00Z"},
-                {"number": 406, "state": "closed", "created_at": "2026-04-12T09:00:00Z", "closed_at": "2026-04-13T05:30:00Z"},
-                {"number": 407, "state": "closed", "created_at": "2026-04-11T09:00:00Z", "closed_at": "2026-04-12T05:30:00Z"},
-                {"number": 408, "state": "closed", "created_at": "2026-04-10T09:00:00Z", "closed_at": "2026-04-11T05:30:00Z"},
-                {"number": 409, "state": "closed", "created_at": "2026-04-09T09:00:00Z", "closed_at": "2026-04-10T05:30:00Z"},
-                {"number": 410, "state": "closed", "created_at": "2026-04-08T09:00:00Z", "closed_at": "2026-04-09T05:30:00Z"},
-                {"number": 411, "state": "closed", "created_at": "2026-04-07T09:00:00Z", "closed_at": "2026-04-08T05:30:00Z"},
-                {"number": 412, "state": "closed", "created_at": "2026-04-06T09:00:00Z", "closed_at": "2026-04-07T05:30:00Z"},
-                {"number": 413, "state": "closed", "created_at": "2026-04-05T09:00:00Z", "closed_at": "2026-04-06T05:30:00Z"},
-                {"number": 414, "state": "open", "created_at": "2026-04-22T08:45:00Z", "closed_at": None},
-                {"number": 415, "state": "open", "created_at": "2026-04-17T08:45:00Z", "closed_at": None},
-            ],
-        },
-        "timmy-config": {
-            "open_issues": [
-                {"number": 601, "state": "open", "created_at": "2026-04-18T09:00:00Z"},
-            ],
-            "recent_issues": [
-                {"number": 602, "state": "closed", "created_at": "2026-04-20T09:00:00Z", "closed_at": "2026-04-21T06:00:00Z"},
-                {"number": 603, "state": "open", "created_at": "2026-04-22T06:00:00Z", "closed_at": None},
-            ],
-        },
-    },
-}
-
-
-CONFIG = {
-    "owner": "Timmy_Foundation",
-    "repos": ["timmy-home", "timmy-config"],
-    "lookback_days": 14,
-    "alert": {
-        "recent_days": 7,
-        "baseline_days": 7,
-        "minimum_baseline_closed": 4,
-        "drop_ratio": 0.6,
-    },
-}
-
-
-def test_build_velocity_report_counts_opened_closed_and_flags_drop_alert() -> None:
-    report = build_velocity_report(CONFIG, SNAPSHOT, today=date(2026, 4, 22))
-
-    assert report["generated_day"] == "2026-04-22"
-    assert report["summary"]["repos_with_alerts"] == ["timmy-home"]
-    assert report["summary"]["total_open_now"] == 3
-
-    home = report["repos"][0]
-    assert home["repo"] == "timmy-home"
-    assert home["open_now"] == 2
-    assert home["opened_last_7d"] == 5
-    assert home["closed_last_7d"] == 3
-    assert home["baseline_closed"] == 7
-    assert home["weekly_net"] == 2
-    assert home["alert"]["status"] == "drop"
-    assert home["alert"]["recent_closed"] == 3
-    assert home["daily"][-1] == {"date": "2026-04-22", "opened": 1, "closed": 1}
-
-    timmy_config = report["repos"][1]
-    assert timmy_config["repo"] == "timmy-config"
-    assert timmy_config["open_now"] == 1
-    assert timmy_config["closed_last_7d"] == 1
-    assert timmy_config["alert"]["status"] == "ok"
-
-
-def test_render_markdown_includes_dashboard_handoff_and_alerts() -> None:
-    report = build_velocity_report(CONFIG, SNAPSHOT, today=date(2026, 4, 22))
-    rendered = render_markdown(report)
-
-    for snippet in (
-        "# Burn-down Velocity Tracking",
-        "## Per-repo velocity",
-        "timmy-home",
-        "timmy-config",
-        "## Dashboard handoff for timmy-config",
-        "velocity_drop",
-        "## Alerts",
-    ):
-        assert snippet in rendered
-
-
-def test_update_history_replaces_same_day_snapshot(tmp_path: Path) -> None:
-    history_path = tmp_path / "burn-velocity-history.json"
-    report = build_velocity_report(CONFIG, SNAPSHOT, today=date(2026, 4, 22))
-    update_history(history_path, report)
-
-    updated = json.loads(json.dumps(report))
-    updated["repos"][0]["open_now"] = 9
-    updated["summary"]["total_open_now"] = 10
-    update_history(history_path, updated)
-
-    history = json.loads(history_path.read_text(encoding="utf-8"))
-    assert [item["date"] for item in history["days"]] == ["2026-04-22"]
-    assert history["days"][0]["summary"]["total_open_now"] == 10
-    assert history["days"][0]["repos"][0]["open_now"] == 9
-
-
-def test_cli_writes_json_markdown_and_history_from_snapshot(tmp_path: Path) -> None:
-    snapshot_path = tmp_path / "snapshot.json"
-    output_json = tmp_path / "latest.json"
-    output_md = tmp_path / "latest.md"
-    history_path = tmp_path / "history.json"
-    snapshot_path.write_text(json.dumps(SNAPSHOT), encoding="utf-8")
-
-    result = subprocess.run(
-        [
-            sys.executable,
-            "-m",
-            "scripts.burn_velocity_tracker",
-            "--snapshot-file",
-            str(snapshot_path),
-            "--today",
-            "2026-04-22",
-            "--output-json",
-            str(output_json),
-            "--output-md",
-            str(output_md),
-            "--history-file",
-            str(history_path),
-            "--write-history",
-            "--json",
-        ],
-        check=True,
-        cwd=ROOT,
-        capture_output=True,
-        text=True,
-    )
-
-    payload = json.loads(result.stdout)
-    assert payload["summary"]["repos_with_alerts"] == ["timmy-home"]
-    assert output_json.exists()
-    assert output_md.exists()
-    assert history_path.exists()
-    assert "timmy-config" in output_md.read_text(encoding="utf-8")
-
-
-def test_repo_contains_burn_velocity_tracking_doc() -> None:
-    text = DOC_PATH.read_text(encoding="utf-8")
-    required = [
-        "# Burn-down Velocity Tracking",
-        "python3 scripts/burn_velocity_tracker.py",
-        "configs/burn_velocity_repos.json",
-        "~/.timmy/burn-velocity/latest.json",
-        "timmy-config dashboard",
-        "type=issues",
-        "velocity_drop",
-    ]
-    for snippet in required:
-        assert snippet in text