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Author SHA1 Message Date
Alexander Whitestone
3f4515db38 feat(memory): add grounded observation synthesis layer
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2026-04-22 11:20:42 -04:00
10 changed files with 574 additions and 451 deletions

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@@ -523,7 +523,7 @@ DEFAULT_CONFIG = {
# Text-to-speech configuration
"tts": {
"provider": "edge", # "edge" (free) | "elevenlabs" (premium) | "openai" | "minimax" | "mistral" | "neutts" (local) | "kittentts" (local)
"provider": "edge", # "edge" (free) | "elevenlabs" (premium) | "openai" | "minimax" | "mistral" | "neutts" (local)
"edge": {
"voice": "en-US-AriaNeural",
# Popular: AriaNeural, JennyNeural, AndrewNeural, BrianNeural, SoniaNeural
@@ -547,12 +547,6 @@ DEFAULT_CONFIG = {
"model": "neuphonic/neutts-air-q4-gguf", # HuggingFace model repo
"device": "cpu", # cpu, cuda, or mps
},
"kittentts": {
"model": "KittenML/kitten-tts-nano-0.8-int8", # 25MB int8 default
"voice": "Jasper", # Jasper, Bella, Luna, Bruno, Rosie, Hugo, Kiki, Leo
"speed": 1.0,
"clean_text": True,
},
},
"stt": {

View File

@@ -443,16 +443,6 @@ def _print_setup_summary(config: dict, hermes_home):
tool_status.append(("Text-to-Speech (NeuTTS local)", True, None))
else:
tool_status.append(("Text-to-Speech (NeuTTS — not installed)", False, "run 'hermes setup tts'"))
elif tts_provider == "kittentts":
try:
import importlib.util
kittentts_ok = importlib.util.find_spec("kittentts") is not None
except Exception:
kittentts_ok = False
if kittentts_ok:
tool_status.append(("Text-to-Speech (KittenTTS local)", True, None))
else:
tool_status.append(("Text-to-Speech (KittenTTS — not installed)", False, "run 'hermes setup tts'"))
else:
tool_status.append(("Text-to-Speech (Edge TTS)", True, None))
@@ -901,7 +891,6 @@ def _install_neutts_deps() -> bool:
return False
else:
print_warning("espeak-ng is required for NeuTTS. Install it manually before using NeuTTS.")
return False
# Install neutts Python package
print()
@@ -921,34 +910,8 @@ def _install_neutts_deps() -> bool:
return False
def _install_kittentts_deps() -> bool:
"""Install KittenTTS dependencies with user approval. Returns True on success."""
import subprocess
import sys
wheel_url = (
"https://github.com/KittenML/KittenTTS/releases/download/"
"0.8.1/kittentts-0.8.1-py3-none-any.whl"
)
print()
print_info("Installing kittentts Python package (~25-80MB model downloaded on first use)...")
print()
try:
subprocess.run(
[sys.executable, "-m", "pip", "install", "-U", wheel_url, "soundfile", "--quiet"],
check=True, timeout=300,
)
print_success("kittentts installed successfully")
return True
except (subprocess.CalledProcessError, subprocess.TimeoutExpired) as e:
print_error(f"Failed to install kittentts: {e}")
print_info(f"Try manually: python -m pip install -U '{wheel_url}' soundfile")
return False
def _setup_tts_provider(config: dict):
"""Interactive TTS provider selection with install flow for local providers."""
"""Interactive TTS provider selection with install flow for NeuTTS."""
tts_config = config.get("tts", {})
current_provider = tts_config.get("provider", "edge")
subscription_features = get_nous_subscription_features(config)
@@ -960,7 +923,6 @@ def _setup_tts_provider(config: dict):
"minimax": "MiniMax TTS",
"mistral": "Mistral Voxtral TTS",
"neutts": "NeuTTS",
"kittentts": "KittenTTS",
}
current_label = provider_labels.get(current_provider, current_provider)
@@ -982,10 +944,9 @@ def _setup_tts_provider(config: dict):
"MiniMax TTS (high quality with voice cloning, needs API key)",
"Mistral Voxtral TTS (multilingual, native Opus, needs API key)",
"NeuTTS (local on-device, free, ~300MB model download)",
"KittenTTS (local on-device, free, lightweight ~25-80MB ONNX)",
]
)
providers.extend(["edge", "elevenlabs", "openai", "minimax", "mistral", "neutts", "kittentts"])
providers.extend(["edge", "elevenlabs", "openai", "minimax", "mistral", "neutts"])
choices.append(f"Keep current ({current_label})")
keep_current_idx = len(choices) - 1
idx = prompt_choice("Select TTS provider:", choices, keep_current_idx)
@@ -1027,28 +988,6 @@ def _setup_tts_provider(config: dict):
print_info("Skipping install. Set tts.provider to 'neutts' after installing manually.")
selected = "edge"
elif selected == "kittentts":
try:
import importlib.util
already_installed = importlib.util.find_spec("kittentts") is not None
except Exception:
already_installed = False
if already_installed:
print_success("KittenTTS is already installed")
else:
print()
print_info("KittenTTS is lightweight (~25-80MB, CPU-only, no API key required).")
print_info("Voices: Jasper, Bella, Luna, Bruno, Rosie, Hugo, Kiki, Leo")
print()
if prompt_yes_no("Install KittenTTS now?", True):
if not _install_kittentts_deps():
print_warning("KittenTTS installation incomplete. Falling back to Edge TTS.")
selected = "edge"
else:
print_info("Skipping install. Set tts.provider to 'kittentts' after installing manually.")
selected = "edge"
elif selected == "elevenlabs":
existing = get_env_value("ELEVENLABS_API_KEY")
if not existing:

View File

@@ -164,14 +164,6 @@ TOOL_CATEGORIES = {
],
"tts_provider": "mistral",
},
{
"name": "KittenTTS",
"badge": "local · free",
"tag": "Lightweight local ONNX TTS (~25MB), no API key",
"env_vars": [],
"tts_provider": "kittentts",
"post_setup": "kittentts",
},
],
},
"web": {
@@ -411,36 +403,6 @@ def _run_post_setup(post_setup_key: str):
_print_warning(" Node.js not found. Install Camofox via Docker:")
_print_info(" docker run -p 9377:9377 -e CAMOFOX_PORT=9377 jo-inc/camofox-browser")
elif post_setup_key == "kittentts":
try:
__import__("kittentts")
_print_success(" kittentts is already installed")
return
except ImportError:
pass
import subprocess
_print_info(" Installing kittentts (~25-80MB model, CPU-only)...")
wheel_url = (
"https://github.com/KittenML/KittenTTS/releases/download/"
"0.8.1/kittentts-0.8.1-py3-none-any.whl"
)
try:
result = subprocess.run(
[sys.executable, "-m", "pip", "install", "-U", wheel_url, "soundfile", "--quiet"],
capture_output=True, text=True, timeout=300,
)
if result.returncode == 0:
_print_success(" kittentts installed")
_print_info(" Voices: Jasper, Bella, Luna, Bruno, Rosie, Hugo, Kiki, Leo")
_print_info(" Models: KittenML/kitten-tts-nano-0.8-int8 (25MB), micro (41MB), mini (80MB)")
else:
_print_warning(" kittentts install failed:")
_print_info(f" {result.stderr.strip()[:300]}")
_print_info(f" Run manually: python -m pip install -U '{wheel_url}' soundfile")
except subprocess.TimeoutExpired:
_print_warning(" kittentts install timed out (>5min)")
_print_info(f" Run manually: python -m pip install -U '{wheel_url}' soundfile")
elif post_setup_key == "rl_training":
try:
__import__("tinker_atropos")

View File

@@ -26,6 +26,7 @@ from agent.memory_provider import MemoryProvider
from tools.registry import tool_error
from .store import MemoryStore
from .retrieval import FactRetriever
from .observations import ObservationSynthesizer
logger = logging.getLogger(__name__)
@@ -37,28 +38,29 @@ logger = logging.getLogger(__name__)
FACT_STORE_SCHEMA = {
"name": "fact_store",
"description": (
"Deep structured memory with algebraic reasoning. "
"Deep structured memory with algebraic reasoning and grounded observation synthesis. "
"Use alongside the memory tool — memory for always-on context, "
"fact_store for deep recall and compositional queries.\n\n"
"fact_store for deep recall, compositional queries, and higher-order observations.\n\n"
"ACTIONS (simple → powerful):\n"
"• add — Store a fact the user would expect you to remember.\n"
"• search — Keyword lookup ('editor config', 'deploy process').\n"
"• probe — Entity recall: ALL facts about a person/thing.\n"
"• related — What connects to an entity? Structural adjacency.\n"
"• reason — Compositional: facts connected to MULTIPLE entities simultaneously.\n"
"• observe — Synthesized higher-order observations backed by supporting facts.\n"
"• contradict — Memory hygiene: find facts making conflicting claims.\n"
"• update/remove/list — CRUD operations.\n\n"
"IMPORTANT: Before answering questions about the user, ALWAYS probe or reason first."
"IMPORTANT: Before answering questions about the user, ALWAYS probe/reason/observe first."
),
"parameters": {
"type": "object",
"properties": {
"action": {
"type": "string",
"enum": ["add", "search", "probe", "related", "reason", "contradict", "update", "remove", "list"],
"enum": ["add", "search", "probe", "related", "reason", "observe", "contradict", "update", "remove", "list"],
},
"content": {"type": "string", "description": "Fact content (required for 'add')."},
"query": {"type": "string", "description": "Search query (required for 'search')."},
"query": {"type": "string", "description": "Search query (required for 'search'/'observe')."},
"entity": {"type": "string", "description": "Entity name for 'probe'/'related'."},
"entities": {"type": "array", "items": {"type": "string"}, "description": "Entity names for 'reason'."},
"fact_id": {"type": "integer", "description": "Fact ID for 'update'/'remove'."},
@@ -66,6 +68,12 @@ FACT_STORE_SCHEMA = {
"tags": {"type": "string", "description": "Comma-separated tags."},
"trust_delta": {"type": "number", "description": "Trust adjustment for 'update'."},
"min_trust": {"type": "number", "description": "Minimum trust filter (default: 0.3)."},
"min_confidence": {"type": "number", "description": "Minimum observation confidence (default: 0.6)."},
"observation_type": {
"type": "string",
"enum": ["recurring_preference", "stable_direction", "behavioral_pattern"],
"description": "Optional observation type filter for 'observe'.",
},
"limit": {"type": "integer", "description": "Max results (default: 10)."},
},
"required": ["action"],
@@ -118,7 +126,9 @@ class HolographicMemoryProvider(MemoryProvider):
self._config = config or _load_plugin_config()
self._store = None
self._retriever = None
self._observation_synth = None
self._min_trust = float(self._config.get("min_trust_threshold", 0.3))
self._observation_min_confidence = float(self._config.get("observation_min_confidence", 0.6))
@property
def name(self) -> str:
@@ -177,6 +187,7 @@ class HolographicMemoryProvider(MemoryProvider):
hrr_weight=hrr_weight,
hrr_dim=hrr_dim,
)
self._observation_synth = ObservationSynthesizer(self._store)
self._session_id = session_id
def system_prompt_block(self) -> str:
@@ -193,30 +204,76 @@ class HolographicMemoryProvider(MemoryProvider):
"# Holographic Memory\n"
"Active. Empty fact store — proactively add facts the user would expect you to remember.\n"
"Use fact_store(action='add') to store durable structured facts about people, projects, preferences, decisions.\n"
"Use fact_store(action='observe') to synthesize higher-order observations with evidence.\n"
"Use fact_feedback to rate facts after using them (trains trust scores)."
)
return (
f"# Holographic Memory\n"
f"Active. {total} facts stored with entity resolution and trust scoring.\n"
f"Use fact_store to search, probe entities, reason across entities, or add facts.\n"
f"Use fact_store to search, probe entities, reason across entities, or synthesize observations.\n"
f"Use fact_feedback to rate facts after using them (trains trust scores)."
)
def prefetch(self, query: str, *, session_id: str = "") -> str:
if not self._retriever or not query:
if not query:
return ""
parts = []
raw_results = []
try:
results = self._retriever.search(query, min_trust=self._min_trust, limit=5)
if not results:
return ""
if self._retriever:
raw_results = self._retriever.search(query, min_trust=self._min_trust, limit=5)
except Exception as e:
logger.debug("Holographic prefetch fact search failed: %s", e)
raw_results = []
observations = []
try:
if self._observation_synth:
observations = self._observation_synth.observe(
query,
min_confidence=self._observation_min_confidence,
limit=3,
refresh=True,
)
except Exception as e:
logger.debug("Holographic prefetch observation search failed: %s", e)
observations = []
if not raw_results and observations:
seen_fact_ids = set()
evidence_backfill = []
for observation in observations:
for evidence in observation.get("evidence", []):
fact_id = evidence.get("fact_id")
if fact_id in seen_fact_ids:
continue
seen_fact_ids.add(fact_id)
evidence_backfill.append(evidence)
raw_results = evidence_backfill[:5]
if raw_results:
lines = []
for r in results:
for r in raw_results:
trust = r.get("trust_score", r.get("trust", 0))
lines.append(f"- [{trust:.1f}] {r.get('content', '')}")
return "## Holographic Memory\n" + "\n".join(lines)
except Exception as e:
logger.debug("Holographic prefetch failed: %s", e)
return ""
parts.append("## Holographic Memory\n" + "\n".join(lines))
if observations:
lines = []
for observation in observations:
evidence_ids = ", ".join(
f"#{item['fact_id']}" for item in observation.get("evidence", [])[:3]
) or "none"
lines.append(
f"- [{observation.get('confidence', 0.0):.2f}] "
f"{observation.get('observation_type', 'observation')}: "
f"{observation.get('summary', '')} "
f"(evidence: {evidence_ids})"
)
parts.append("## Holographic Observations\n" + "\n".join(lines))
return "\n\n".join(parts)
def sync_turn(self, user_content: str, assistant_content: str, *, session_id: str = "") -> None:
# Holographic memory stores explicit facts via tools, not auto-sync.
@@ -252,6 +309,7 @@ class HolographicMemoryProvider(MemoryProvider):
def shutdown(self) -> None:
self._store = None
self._retriever = None
self._observation_synth = None
# -- Tool handlers -------------------------------------------------------
@@ -305,6 +363,19 @@ class HolographicMemoryProvider(MemoryProvider):
)
return json.dumps({"results": results, "count": len(results)})
elif action == "observe":
synthesizer = self._observation_synth
if not synthesizer:
return tool_error("Observation synthesizer is not initialized")
observations = synthesizer.observe(
args.get("query", ""),
observation_type=args.get("observation_type"),
min_confidence=float(args.get("min_confidence", self._observation_min_confidence)),
limit=int(args.get("limit", 10)),
refresh=True,
)
return json.dumps({"observations": observations, "count": len(observations)})
elif action == "contradict":
results = retriever.contradict(
category=args.get("category"),

View File

@@ -0,0 +1,249 @@
"""Higher-order observation synthesis for holographic memory.
Builds grounded observations from accumulated facts and keeps them in a
separate retrieval layer with explicit evidence links back to supporting facts.
"""
from __future__ import annotations
import re
from typing import Any
from .store import MemoryStore
_TOKEN_RE = re.compile(r"[a-z0-9_]+")
_HIGHER_ORDER_CUES = {
"prefer",
"preference",
"preferences",
"style",
"pattern",
"patterns",
"behavior",
"behaviour",
"habit",
"habits",
"workflow",
"direction",
"trajectory",
"strategy",
"tend",
"usually",
}
_OBSERVATION_PATTERNS = [
{
"observation_type": "recurring_preference",
"subject": "communication_style",
"categories": {"user_pref", "general"},
"labels": {
"concise": ["concise", "terse", "brief", "short", "no fluff"],
"result_first": ["result-only", "result only", "outcome only", "quick", "quickly"],
"silent_ops": ["silent", "no status", "no repetitive status", "no questions"],
},
"summary_prefix": "Recurring preference",
},
{
"observation_type": "stable_direction",
"subject": "project_direction",
"categories": {"project", "general", "tool"},
"labels": {
"local_first": ["local-first", "local first", "local-only", "local only", "ollama", "own hardware"],
"gitea_first": ["gitea-first", "gitea first", "forge", "pull request", "pr flow", "issue flow"],
"ansible": ["ansible", "playbook", "role", "deploy via ansible"],
},
"summary_prefix": "Stable direction",
},
{
"observation_type": "behavioral_pattern",
"subject": "operator_workflow",
"categories": {"general", "project", "tool", "user_pref"},
"labels": {
"commit_early": ["commit early", "commits early", "commit after", "wip commit"],
"pr_first": ["open pr", "push a pr", "pull request", "pr immediately", "create pr"],
"dedup_guard": ["no dupes", "no duplicates", "avoid duplicate", "existing pr"],
},
"summary_prefix": "Behavioral pattern",
},
]
_TYPE_QUERY_HINTS = {
"recurring_preference": {"prefer", "preference", "style", "communication", "likes", "wants"},
"stable_direction": {"direction", "trajectory", "strategy", "project", "roadmap", "moving"},
"behavioral_pattern": {"pattern", "behavior", "workflow", "habit", "operator", "agent", "usually"},
}
class ObservationSynthesizer:
"""Synthesizes grounded observations from facts and retrieves them by query."""
def __init__(self, store: MemoryStore):
self.store = store
def synthesize(
self,
*,
persist: bool = True,
min_confidence: float = 0.6,
limit: int = 10,
) -> list[dict[str, Any]]:
facts = self.store.list_facts(min_trust=0.0, limit=1000)
observations: list[dict[str, Any]] = []
for pattern in _OBSERVATION_PATTERNS:
candidate = self._build_candidate(pattern, facts, min_confidence=min_confidence)
if not candidate:
continue
if persist:
candidate["observation_id"] = self.store.upsert_observation(
candidate["observation_type"],
candidate["subject"],
candidate["summary"],
candidate["confidence"],
candidate["evidence_fact_ids"],
metadata=candidate["metadata"],
)
candidate["evidence"] = self._expand_evidence(candidate["evidence_fact_ids"])
candidate["evidence_count"] = len(candidate["evidence"])
candidate.pop("evidence_fact_ids", None)
observations.append(candidate)
observations.sort(
key=lambda item: (item["confidence"], item.get("evidence_count", 0)),
reverse=True,
)
return observations[:limit]
def observe(
self,
query: str = "",
*,
observation_type: str | None = None,
min_confidence: float = 0.6,
limit: int = 10,
refresh: bool = True,
) -> list[dict[str, Any]]:
if refresh:
self.synthesize(persist=True, min_confidence=min_confidence, limit=limit)
observations = self.store.list_observations(
observation_type=observation_type,
min_confidence=min_confidence,
limit=max(limit * 4, 20),
)
if not observations:
return []
if not query:
return observations[:limit]
query_tokens = self._tokenize(query)
is_higher_order = bool(query_tokens & _HIGHER_ORDER_CUES)
ranked: list[dict[str, Any]] = []
for item in observations:
searchable = " ".join(
[
item.get("summary", ""),
item.get("subject", ""),
item.get("observation_type", ""),
" ".join(item.get("metadata", {}).get("labels", [])),
]
)
overlap = self._overlap_score(query_tokens, self._tokenize(searchable))
type_bonus = self._type_bonus(query_tokens, item.get("observation_type", ""))
if overlap <= 0 and type_bonus <= 0 and not is_higher_order:
continue
ranked_item = dict(item)
ranked_item["score"] = round(item.get("confidence", 0.0) + overlap + type_bonus, 3)
ranked.append(ranked_item)
if not ranked and is_higher_order:
ranked = [
{**item, "score": round(float(item.get("confidence", 0.0)), 3)}
for item in observations
]
ranked.sort(
key=lambda item: (item.get("score", 0.0), item.get("confidence", 0.0), item.get("evidence_count", 0)),
reverse=True,
)
return ranked[:limit]
def _build_candidate(
self,
pattern: dict[str, Any],
facts: list[dict[str, Any]],
*,
min_confidence: float,
) -> dict[str, Any] | None:
matched_fact_ids: set[int] = set()
matched_labels: dict[str, set[int]] = {label: set() for label in pattern["labels"]}
for fact in facts:
if fact.get("category") not in pattern["categories"]:
continue
haystack = f"{fact.get('content', '')} {fact.get('tags', '')}".lower()
local_match = False
for label, keywords in pattern["labels"].items():
if any(keyword in haystack for keyword in keywords):
matched_labels[label].add(int(fact["fact_id"]))
local_match = True
if local_match:
matched_fact_ids.add(int(fact["fact_id"]))
if len(matched_fact_ids) < 2:
return None
active_labels = sorted(label for label, ids in matched_labels.items() if ids)
confidence = min(0.95, 0.35 + 0.12 * len(matched_fact_ids) + 0.08 * len(active_labels))
confidence = round(confidence, 3)
if confidence < min_confidence:
return None
label_summary = ", ".join(label.replace("_", "-") for label in active_labels)
subject_text = pattern["subject"].replace("_", " ")
summary = (
f"{pattern['summary_prefix']}: {subject_text} trends toward {label_summary} "
f"based on {len(matched_fact_ids)} supporting facts."
)
return {
"observation_type": pattern["observation_type"],
"subject": pattern["subject"],
"summary": summary,
"confidence": confidence,
"metadata": {
"labels": active_labels,
"evidence_count": len(matched_fact_ids),
},
"evidence_fact_ids": sorted(matched_fact_ids),
}
def _expand_evidence(self, fact_ids: list[int]) -> list[dict[str, Any]]:
facts_by_id = {
fact["fact_id"]: fact
for fact in self.store.list_facts(min_trust=0.0, limit=1000)
}
return [facts_by_id[fact_id] for fact_id in fact_ids if fact_id in facts_by_id]
@staticmethod
def _tokenize(text: str) -> set[str]:
return set(_TOKEN_RE.findall(text.lower()))
@staticmethod
def _overlap_score(query_tokens: set[str], text_tokens: set[str]) -> float:
if not query_tokens or not text_tokens:
return 0.0
overlap = query_tokens & text_tokens
if not overlap:
return 0.0
return round(len(overlap) / max(len(query_tokens), 1), 3)
@staticmethod
def _type_bonus(query_tokens: set[str], observation_type: str) -> float:
hints = _TYPE_QUERY_HINTS.get(observation_type, set())
if not hints:
return 0.0
return 0.25 if query_tokens & hints else 0.0

View File

@@ -3,6 +3,7 @@ SQLite-backed fact store with entity resolution and trust scoring.
Single-user Hermes memory store plugin.
"""
import json
import re
import sqlite3
import threading
@@ -73,6 +74,28 @@ CREATE TABLE IF NOT EXISTS memory_banks (
fact_count INTEGER DEFAULT 0,
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);
CREATE TABLE IF NOT EXISTS observations (
observation_id INTEGER PRIMARY KEY AUTOINCREMENT,
observation_type TEXT NOT NULL,
subject TEXT NOT NULL,
summary TEXT NOT NULL,
confidence REAL DEFAULT 0.0,
metadata_json TEXT DEFAULT '{}',
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
UNIQUE(observation_type, subject)
);
CREATE TABLE IF NOT EXISTS observation_evidence (
observation_id INTEGER REFERENCES observations(observation_id) ON DELETE CASCADE,
fact_id INTEGER REFERENCES facts(fact_id) ON DELETE CASCADE,
evidence_weight REAL DEFAULT 1.0,
PRIMARY KEY (observation_id, fact_id)
);
CREATE INDEX IF NOT EXISTS idx_observations_type ON observations(observation_type);
CREATE INDEX IF NOT EXISTS idx_observations_confidence ON observations(confidence DESC);
"""
# Trust adjustment constants
@@ -128,6 +151,7 @@ class MemoryStore:
def _init_db(self) -> None:
"""Create tables, indexes, and triggers if they do not exist. Enable WAL mode."""
self._conn.execute("PRAGMA journal_mode=WAL")
self._conn.execute("PRAGMA foreign_keys=ON")
self._conn.executescript(_SCHEMA)
# Migrate: add hrr_vector column if missing (safe for existing databases)
columns = {row[1] for row in self._conn.execute("PRAGMA table_info(facts)").fetchall()}
@@ -346,6 +370,115 @@ class MemoryStore:
rows = self._conn.execute(sql, params).fetchall()
return [self._row_to_dict(r) for r in rows]
def upsert_observation(
self,
observation_type: str,
subject: str,
summary: str,
confidence: float,
evidence_fact_ids: list[int],
metadata: dict | None = None,
) -> int:
"""Create or update a synthesized observation and its evidence links."""
with self._lock:
metadata_json = json.dumps(metadata or {}, sort_keys=True)
self._conn.execute(
"""
INSERT INTO observations (
observation_type, subject, summary, confidence, metadata_json
)
VALUES (?, ?, ?, ?, ?)
ON CONFLICT(observation_type, subject) DO UPDATE SET
summary = excluded.summary,
confidence = excluded.confidence,
metadata_json = excluded.metadata_json,
updated_at = CURRENT_TIMESTAMP
""",
(observation_type, subject, summary, confidence, metadata_json),
)
row = self._conn.execute(
"""
SELECT observation_id
FROM observations
WHERE observation_type = ? AND subject = ?
""",
(observation_type, subject),
).fetchone()
observation_id = int(row["observation_id"])
self._conn.execute(
"DELETE FROM observation_evidence WHERE observation_id = ?",
(observation_id,),
)
unique_fact_ids = sorted({int(fid) for fid in evidence_fact_ids})
if unique_fact_ids:
self._conn.executemany(
"""
INSERT OR IGNORE INTO observation_evidence (observation_id, fact_id)
VALUES (?, ?)
""",
[(observation_id, fact_id) for fact_id in unique_fact_ids],
)
self._conn.commit()
return observation_id
def list_observations(
self,
observation_type: str | None = None,
min_confidence: float = 0.0,
limit: int = 50,
) -> list[dict]:
"""List synthesized observations with expanded supporting evidence."""
with self._lock:
params: list = [min_confidence]
observation_clause = ""
if observation_type is not None:
observation_clause = "AND observation_type = ?"
params.append(observation_type)
params.append(limit)
rows = self._conn.execute(
f"""
SELECT observation_id, observation_type, subject, summary, confidence,
metadata_json, created_at, updated_at,
(
SELECT COUNT(*)
FROM observation_evidence oe
WHERE oe.observation_id = observations.observation_id
) AS evidence_count
FROM observations
WHERE confidence >= ?
{observation_clause}
ORDER BY confidence DESC, updated_at DESC
LIMIT ?
""",
params,
).fetchall()
results = []
for row in rows:
item = dict(row)
try:
item["metadata"] = json.loads(item.pop("metadata_json") or "{}")
except json.JSONDecodeError:
item["metadata"] = {}
item["evidence"] = self._get_observation_evidence(int(item["observation_id"]))
results.append(item)
return results
def _get_observation_evidence(self, observation_id: int) -> list[dict]:
rows = self._conn.execute(
"""
SELECT f.fact_id, f.content, f.category, f.tags, f.trust_score,
f.retrieval_count, f.helpful_count, f.created_at, f.updated_at
FROM observation_evidence oe
JOIN facts f ON f.fact_id = oe.fact_id
WHERE oe.observation_id = ?
ORDER BY f.trust_score DESC, f.updated_at DESC
""",
(observation_id,),
).fetchall()
return [self._row_to_dict(row) for row in rows]
def record_feedback(self, fact_id: int, helpful: bool) -> dict:
"""Record user feedback and adjust trust asymmetrically.

View File

@@ -0,0 +1,96 @@
import json
import pytest
from plugins.memory.holographic import HolographicMemoryProvider
from plugins.memory.holographic.store import MemoryStore
@pytest.fixture()
def store(tmp_path):
db_path = tmp_path / "memory.db"
s = MemoryStore(db_path=str(db_path), default_trust=0.5)
yield s
s.close()
@pytest.fixture()
def provider(tmp_path):
p = HolographicMemoryProvider(
config={
"db_path": str(tmp_path / "memory.db"),
"default_trust": 0.5,
}
)
p.initialize(session_id="test-session")
yield p
if p._store:
p._store.close()
class TestObservationSynthesis:
def test_observe_action_persists_observation_with_evidence_links(self, provider):
fact_ids = [
provider._store.add_fact('User prefers concise status updates', category='user_pref'),
provider._store.add_fact('User wants result-only replies with no fluff', category='user_pref'),
]
result = json.loads(
provider.handle_tool_call(
'fact_store',
{
'action': 'observe',
'query': 'What communication style does the user prefer?',
'limit': 5,
},
)
)
assert result['count'] == 1
observation = result['observations'][0]
assert observation['observation_type'] == 'recurring_preference'
assert observation['confidence'] >= 0.6
assert sorted(item['fact_id'] for item in observation['evidence']) == sorted(fact_ids)
stored = provider._store.list_observations(limit=10)
assert len(stored) == 1
assert stored[0]['observation_type'] == 'recurring_preference'
assert stored[0]['evidence_count'] == 2
assert len(provider._store.list_facts(limit=10)) == 2
def test_observe_action_synthesizes_three_observation_types(self, provider):
provider._store.add_fact('User prefers concise updates', category='user_pref')
provider._store.add_fact('User wants result-only communication', category='user_pref')
provider._store.add_fact('Project is moving to a local-first deployment model', category='project')
provider._store.add_fact('Project direction stays Gitea-first for issue and PR flow', category='project')
provider._store.add_fact('Operator always commits early before moving on', category='general')
provider._store.add_fact('Operator pushes a PR immediately after each meaningful fix', category='general')
result = json.loads(provider.handle_tool_call('fact_store', {'action': 'observe', 'limit': 10}))
types = {item['observation_type'] for item in result['observations']}
assert {'recurring_preference', 'stable_direction', 'behavioral_pattern'} <= types
def test_single_fact_does_not_create_overconfident_observation(self, provider):
provider._store.add_fact('User prefers concise updates', category='user_pref')
result = json.loads(
provider.handle_tool_call(
'fact_store',
{'action': 'observe', 'query': 'What does the user prefer?', 'limit': 5},
)
)
assert result['count'] == 0
assert provider._store.list_observations(limit=10) == []
def test_prefetch_surfaces_observations_as_separate_layer(self, provider):
provider._store.add_fact('User prefers concise updates', category='user_pref')
provider._store.add_fact('User wants result-only communication', category='user_pref')
prefetch = provider.prefetch('What communication style does the user prefer?')
assert '## Holographic Observations' in prefetch
assert '## Holographic Memory' in prefetch
assert 'recurring_preference' in prefetch
assert 'evidence' in prefetch.lower()

View File

@@ -1,236 +0,0 @@
"""Tests for the KittenTTS local provider in tools/tts_tool.py."""
import json
from unittest.mock import MagicMock, patch
import numpy as np
import pytest
@pytest.fixture(autouse=True)
def clean_env(monkeypatch):
for key in ("HERMES_SESSION_PLATFORM",):
monkeypatch.delenv(key, raising=False)
@pytest.fixture(autouse=True)
def clear_kittentts_cache():
"""Reset the module-level model cache between tests."""
from tools import tts_tool as _tt
_tt._kittentts_model_cache.clear()
yield
_tt._kittentts_model_cache.clear()
@pytest.fixture
def mock_kittentts_module():
"""Inject a fake kittentts + soundfile module that return stub objects."""
fake_model = MagicMock()
# 24kHz float32 PCM at ~2s of silence
fake_model.generate.return_value = np.zeros(48000, dtype=np.float32)
fake_cls = MagicMock(return_value=fake_model)
fake_kittentts = MagicMock()
fake_kittentts.KittenTTS = fake_cls
# Stub soundfile — the real package isn't installed in CI venv, and
# _generate_kittentts does `import soundfile as sf` at runtime.
fake_sf = MagicMock()
def _fake_write(path, audio, samplerate):
# Emulate writing a real file so downstream path checks succeed.
import pathlib
pathlib.Path(path).write_bytes(b"RIFF\x00\x00\x00\x00WAVEfmt fake")
fake_sf.write = _fake_write
with patch.dict(
"sys.modules",
{"kittentts": fake_kittentts, "soundfile": fake_sf},
):
yield fake_model, fake_cls
class TestGenerateKittenTts:
def test_successful_wav_generation(self, tmp_path, mock_kittentts_module):
from tools.tts_tool import _generate_kittentts
fake_model, fake_cls = mock_kittentts_module
output_path = str(tmp_path / "test.wav")
result = _generate_kittentts("Hello world", output_path, {})
assert result == output_path
assert (tmp_path / "test.wav").exists()
fake_cls.assert_called_once()
fake_model.generate.assert_called_once()
def test_config_passes_voice_speed_cleantext(self, tmp_path, mock_kittentts_module):
from tools.tts_tool import _generate_kittentts
fake_model, _ = mock_kittentts_module
config = {
"kittentts": {
"model": "KittenML/kitten-tts-mini-0.8",
"voice": "Luna",
"speed": 1.25,
"clean_text": False,
}
}
_generate_kittentts("Hi there", str(tmp_path / "out.wav"), config)
call_kwargs = fake_model.generate.call_args.kwargs
assert call_kwargs["voice"] == "Luna"
assert call_kwargs["speed"] == 1.25
assert call_kwargs["clean_text"] is False
def test_default_model_and_voice(self, tmp_path, mock_kittentts_module):
from tools.tts_tool import (
DEFAULT_KITTENTTS_MODEL,
DEFAULT_KITTENTTS_VOICE,
_generate_kittentts,
)
fake_model, fake_cls = mock_kittentts_module
_generate_kittentts("Hi", str(tmp_path / "out.wav"), {})
fake_cls.assert_called_once_with(DEFAULT_KITTENTTS_MODEL)
assert fake_model.generate.call_args.kwargs["voice"] == DEFAULT_KITTENTTS_VOICE
def test_model_is_cached_across_calls(self, tmp_path, mock_kittentts_module):
from tools.tts_tool import _generate_kittentts
_, fake_cls = mock_kittentts_module
_generate_kittentts("One", str(tmp_path / "a.wav"), {})
_generate_kittentts("Two", str(tmp_path / "b.wav"), {})
# Same model name → class instantiated exactly once
assert fake_cls.call_count == 1
def test_different_models_are_cached_separately(self, tmp_path, mock_kittentts_module):
from tools.tts_tool import _generate_kittentts
_, fake_cls = mock_kittentts_module
_generate_kittentts(
"A",
str(tmp_path / "a.wav"),
{"kittentts": {"model": "KittenML/kitten-tts-nano-0.8-int8"}},
)
_generate_kittentts(
"B",
str(tmp_path / "b.wav"),
{"kittentts": {"model": "KittenML/kitten-tts-mini-0.8"}},
)
assert fake_cls.call_count == 2
def test_non_wav_extension_triggers_ffmpeg_conversion(
self, tmp_path, mock_kittentts_module, monkeypatch
):
"""Non-.wav output path causes WAV → target ffmpeg conversion."""
from tools import tts_tool as _tt
calls = []
def fake_shutil_which(cmd):
return "/usr/bin/ffmpeg" if cmd == "ffmpeg" else None
def fake_run(cmd, check=False, timeout=None, **kw):
calls.append(cmd)
# Emulate ffmpeg writing the output file
import pathlib
out_path = cmd[-1]
pathlib.Path(out_path).write_bytes(b"fake-mp3-data")
return MagicMock(returncode=0)
monkeypatch.setattr(_tt.shutil, "which", fake_shutil_which)
monkeypatch.setattr(_tt.subprocess, "run", fake_run)
output_path = str(tmp_path / "test.mp3")
result = _tt._generate_kittentts("Hi", output_path, {})
assert result == output_path
assert len(calls) == 1
assert calls[0][0] == "/usr/bin/ffmpeg"
def test_missing_kittentts_raises_import_error(self, tmp_path, monkeypatch):
"""When kittentts package is not installed, _import_kittentts raises."""
import sys
monkeypatch.setitem(sys.modules, "kittentts", None)
from tools.tts_tool import _generate_kittentts
with pytest.raises((ImportError, TypeError)):
_generate_kittentts("Hi", str(tmp_path / "out.wav"), {})
class TestCheckKittenttsAvailable:
def test_reports_available_when_package_present(self, monkeypatch):
import importlib.util
from tools.tts_tool import _check_kittentts_available
fake_spec = MagicMock()
monkeypatch.setattr(
importlib.util,
"find_spec",
lambda name: fake_spec if name == "kittentts" else None,
)
assert _check_kittentts_available() is True
def test_reports_unavailable_when_package_missing(self, monkeypatch):
import importlib.util
from tools.tts_tool import _check_kittentts_available
monkeypatch.setattr(importlib.util, "find_spec", lambda name: None)
assert _check_kittentts_available() is False
class TestDispatcherBranch:
def test_kittentts_not_installed_returns_helpful_error(self, monkeypatch, tmp_path):
"""When provider=kittentts but package missing, return JSON error with setup hint."""
import sys
monkeypatch.setitem(sys.modules, "kittentts", None)
monkeypatch.setenv("HERMES_HOME", str(tmp_path))
from tools.tts_tool import text_to_speech_tool
# Write a config telling it to use kittentts
import yaml
(tmp_path / "config.yaml").write_text(
yaml.safe_dump({"tts": {"provider": "kittentts"}})
)
result = json.loads(text_to_speech_tool(text="Hello"))
assert result["success"] is False
assert "kittentts" in result["error"].lower()
assert "hermes setup tts" in result["error"].lower()
def test_non_telegram_explicit_wav_path_is_preserved(
self, monkeypatch, tmp_path, mock_kittentts_module
):
"""Explicit WAV outputs should stay WAV outside Telegram sessions."""
import yaml
from tools import tts_tool as _tt
monkeypatch.setenv("HERMES_HOME", str(tmp_path))
(tmp_path / "config.yaml").write_text(
yaml.safe_dump({"tts": {"provider": "kittentts"}})
)
def fail_convert(_path):
raise AssertionError("_convert_to_opus should not run outside Telegram")
monkeypatch.setattr(_tt, "_convert_to_opus", fail_convert)
result = json.loads(
_tt.text_to_speech_tool(
text="Hello from KittenTTS",
output_path=str(tmp_path / "out.wav"),
)
)
assert result["success"] is True
assert result["file_path"] == str(tmp_path / "out.wav")
assert (tmp_path / "out.wav").exists()

View File

@@ -2,14 +2,13 @@
"""
Text-to-Speech Tool Module
Supports seven TTS providers:
Supports six TTS providers:
- Edge TTS (default, free, no API key): Microsoft Edge neural voices
- ElevenLabs (premium): High-quality voices, needs ELEVENLABS_API_KEY
- OpenAI TTS: Good quality, needs OPENAI_API_KEY
- MiniMax TTS: High-quality with voice cloning, needs MINIMAX_API_KEY
- Mistral (Voxtral TTS): Multilingual, native Opus, needs MISTRAL_API_KEY
- NeuTTS (local, free, no API key): On-device TTS via neutts_cli, needs neutts installed
- KittenTTS (local, free, no API key): Lightweight on-device ONNX TTS via kittentts
Output formats:
- Opus (.ogg) for Telegram voice bubbles (requires ffmpeg for Edge TTS)
@@ -78,12 +77,6 @@ def _import_sounddevice():
return sd
def _import_kittentts():
"""Lazy import KittenTTS. Returns the class or raises ImportError."""
from kittentts import KittenTTS
return KittenTTS
# ===========================================================================
# Defaults
# ===========================================================================
@@ -93,8 +86,6 @@ DEFAULT_ELEVENLABS_VOICE_ID = "pNInz6obpgDQGcFmaJgB" # Adam
DEFAULT_ELEVENLABS_MODEL_ID = "eleven_multilingual_v2"
DEFAULT_ELEVENLABS_STREAMING_MODEL_ID = "eleven_flash_v2_5"
DEFAULT_OPENAI_MODEL = "gpt-4o-mini-tts"
DEFAULT_KITTENTTS_MODEL = "KittenML/kitten-tts-nano-0.8-int8" # 25MB
DEFAULT_KITTENTTS_VOICE = "Jasper"
DEFAULT_OPENAI_VOICE = "alloy"
DEFAULT_OPENAI_BASE_URL = "https://api.openai.com/v1"
DEFAULT_MINIMAX_MODEL = "speech-2.8-hd"
@@ -457,15 +448,6 @@ def _check_neutts_available() -> bool:
return False
def _check_kittentts_available() -> bool:
"""Check if the kittentts engine is importable (installed locally)."""
try:
import importlib.util
return importlib.util.find_spec("kittentts") is not None
except Exception:
return False
def _default_neutts_ref_audio() -> str:
"""Return path to the bundled default voice reference audio."""
return str(Path(__file__).parent / "neutts_samples" / "jo.wav")
@@ -529,51 +511,6 @@ def _generate_neutts(text: str, output_path: str, tts_config: Dict[str, Any]) ->
return output_path
# ===========================================================================
# Provider: KittenTTS (local, lightweight)
# ===========================================================================
# Module-level cache for KittenTTS model instances
_kittentts_model_cache: Dict[str, Any] = {}
def _generate_kittentts(text: str, output_path: str, tts_config: Dict[str, Any]) -> str:
"""Generate speech using the local KittenTTS ONNX model."""
KittenTTS = _import_kittentts()
kt_config = tts_config.get("kittentts", {})
model_name = kt_config.get("model", DEFAULT_KITTENTTS_MODEL)
voice = kt_config.get("voice", DEFAULT_KITTENTTS_VOICE)
speed = kt_config.get("speed", 1.0)
clean_text = kt_config.get("clean_text", True)
global _kittentts_model_cache
if model_name not in _kittentts_model_cache:
logger.info("[KittenTTS] Loading model: %s", model_name)
_kittentts_model_cache[model_name] = KittenTTS(model_name)
model = _kittentts_model_cache[model_name]
audio = model.generate(text, voice=voice, speed=speed, clean_text=clean_text)
import soundfile as sf
wav_path = output_path
if not output_path.endswith(".wav"):
wav_path = output_path.rsplit(".", 1)[0] + ".wav"
sf.write(wav_path, audio, 24000)
if wav_path != output_path:
ffmpeg = shutil.which("ffmpeg")
if ffmpeg:
conv_cmd = [ffmpeg, "-i", wav_path, "-y", "-loglevel", "error", output_path]
subprocess.run(conv_cmd, check=True, timeout=30)
os.remove(wav_path)
else:
os.rename(wav_path, output_path)
return output_path
# ===========================================================================
# Main tool function
# ===========================================================================
@@ -685,19 +622,6 @@ def text_to_speech_tool(
logger.info("Generating speech with NeuTTS (local)...")
_generate_neutts(text, file_str, tts_config)
elif provider == "kittentts":
try:
_import_kittentts()
except ImportError:
return json.dumps({
"success": False,
"error": "KittenTTS provider selected but 'kittentts' package not installed. "
"Run 'hermes setup tts' and choose KittenTTS, or install manually: "
"pip install https://github.com/KittenML/KittenTTS/releases/download/0.8.1/kittentts-0.8.1-py3-none-any.whl"
}, ensure_ascii=False)
logger.info("Generating speech with KittenTTS (local, lightweight)...")
_generate_kittentts(text, file_str, tts_config)
else:
# Default: Edge TTS (free), with NeuTTS as local fallback
edge_available = True
@@ -734,10 +658,10 @@ def text_to_speech_tool(
"error": f"TTS generation produced no output (provider: {provider})"
}, ensure_ascii=False)
# Try Opus conversion for Telegram compatibility only.
# Outside Telegram, preserve the caller's explicit output format.
# Try Opus conversion for Telegram compatibility
# Edge TTS outputs MP3, NeuTTS outputs WAV — both need ffmpeg conversion
voice_compatible = False
if want_opus and provider in ("edge", "neutts", "minimax", "kittentts") and not file_str.endswith(".ogg"):
if provider in ("edge", "neutts", "minimax") and not file_str.endswith(".ogg"):
opus_path = _convert_to_opus(file_str)
if opus_path:
file_str = opus_path
@@ -818,8 +742,6 @@ def check_tts_requirements() -> bool:
pass
if _check_neutts_available():
return True
if _check_kittentts_available():
return True
return False

View File

@@ -10,7 +10,7 @@ Hermes Agent supports both text-to-speech output and voice message transcription
## Text-to-Speech
Convert text to speech with seven providers:
Convert text to speech with six providers:
| Provider | Quality | Cost | API Key |
|----------|---------|------|---------|
@@ -20,7 +20,6 @@ Convert text to speech with seven providers:
| **MiniMax TTS** | Excellent | Paid | `MINIMAX_API_KEY` |
| **Mistral (Voxtral TTS)** | Excellent | Paid | `MISTRAL_API_KEY` |
| **NeuTTS** | Good | Free | None needed |
| **KittenTTS** | Good | Free (local) | None needed |
### Platform Delivery
@@ -36,7 +35,7 @@ Convert text to speech with seven providers:
```yaml
# In ~/.hermes/config.yaml
tts:
provider: "edge" # "edge" | "elevenlabs" | "openai" | "minimax" | "mistral" | "neutts" | "kittentts"
provider: "edge" # "edge" | "elevenlabs" | "openai" | "minimax" | "mistral" | "neutts"
speed: 1.0 # Global speed multiplier (provider-specific settings override this)
edge:
voice: "en-US-AriaNeural" # 322 voices, 74 languages
@@ -63,11 +62,6 @@ tts:
ref_text: ''
model: neuphonic/neutts-air-q4-gguf
device: cpu
kittentts:
model: KittenML/kitten-tts-nano-0.8-int8 # 25MB int8 default; also micro and mini variants
voice: Jasper # Jasper, Bella, Luna, Bruno, Rosie, Hugo, Kiki, Leo
speed: 1.0
clean_text: true
```
**Speed control**: The global `tts.speed` value applies to all providers by default. Each provider can override it with its own `speed` setting (e.g., `tts.openai.speed: 1.5`). Provider-specific speed takes precedence over the global value. Default is `1.0` (normal speed).
@@ -80,7 +74,6 @@ Telegram voice bubbles require Opus/OGG audio format:
- **Edge TTS** (default) outputs MP3 and needs **ffmpeg** to convert:
- **MiniMax TTS** outputs MP3 and needs **ffmpeg** to convert for Telegram voice bubbles
- **NeuTTS** outputs WAV and also needs **ffmpeg** to convert for Telegram voice bubbles
- **KittenTTS** outputs WAV and also needs **ffmpeg** to convert for Telegram voice bubbles
```bash
# Ubuntu/Debian
@@ -93,7 +86,7 @@ brew install ffmpeg
sudo dnf install ffmpeg
```
Without ffmpeg, Edge TTS, MiniMax TTS, NeuTTS, and KittenTTS audio are sent as regular audio files (playable, but shown as a rectangular player instead of a voice bubble).
Without ffmpeg, Edge TTS, MiniMax TTS, and NeuTTS audio are sent as regular audio files (playable, but shown as a rectangular player instead of a voice bubble).
:::tip
If you want voice bubbles without installing ffmpeg, switch to the OpenAI, ElevenLabs, or Mistral provider.