v1.1 WP-B.1: diagnose independent long-term memory retention

Diagnostic only; no memory behaviour changes.

- tools/memory_diagnostic.py: planted-fact isolation checks, the four-stage
  diagnosis (created / retained / ranked / injected) with a verdict, a
  production-ranking replica, deterministic summariser/embedder/narrator
  stubs and seven scenarios (default, past capacity, pinned, low top_k,
  long-block early/late, lineage control)
- tools/v11_b1_memory.py: CLI for the scenarios and for diagnosing a copy of
  a finished real campaign
- tools/m11_long_run.py: opt-in --independent-fact mode with per-turn
  isolation tracking and the recovered_through_memory_independent verdict;
  M04 verdicts unchanged
- tests: diagnostic stages, eviction, creation window, ranking, lineage and
  authority controls; two strict xfails record the diagnosed retention and
  creation defects for WP-B.2 to flip
- planning/reports/v1.1/V1.1-WP-B1-REPORT.md

First failing stage: ranking (real model); retention past capacity and
creation for early facts in long blocks (deterministic, same on v1.0.0).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VvegagkhuCZoFPdv4M1egY
This commit is contained in:
JesseMarkowitz
2026-09-14 20:50:05 -04:00
co-authored by Claude Opus 5
parent d63804f22e
commit beb17ada10
6 changed files with 2184 additions and 0 deletions
+839
View File
@@ -0,0 +1,839 @@
"""v1.1 WP-B.1: where an early story fact is lost on its way to the narrator.
One planted fact **F** has four stages to survive before the narrator can use
it from memory, and this module reports each one separately:
created a memory whose `source_start`..`source_end` covers the planting
depth carries F
retained that memory is not `forgotten`
ranked it is eligible on the active lineage and embedded, and where it
scores for the recall query against `memory_top_k`
injected the recall turn's own stored `memories.used` names it, and its text
is in that turn's `used_memories` section
A fact is only evidence about memory if memory is the **only** thing carrying it.
`isolation()` checks every other layer: the authoritative document, per-node state
snapshots, the active summary, imported knowledge, the narration after the
planting block, and the recent-history window. A run where any of those carries F
is reported as a failed precondition, never as a memory result.
**Nothing here changes behaviour.**
- It reads rows.
- It reuses production's own pure helpers (`memorybank._drop_redundant`,
`memorybank.classify_authority`, `vectors.cosine`, `lineage.path_of`), so its
ranking is production's ranking, not a second opinion.
- It checks itself against what the recall turn actually recorded.
- The only computed fields are ephemeral report data. No column or table is
added.
The deterministic stubs at the bottom stand in for the models when a test needs a
fixed answer. **Read what they model before reading any result they produce:**
- `BestCaseSummariser` keeps F if and only if F is in the excerpt it is given.
It is the ideal summariser, so a creation failure under it is the
application's, not the model's.
- `ConceptEmbedder` maps words to a small concept table, so that "the brass dial
that tells the hour" lands near "sundial". It models what an embedding is
supposed to do. It says nothing about how well `nomic-embed-text` does it,
which is what the real-model run is for.
"""
from __future__ import annotations
import hashlib
import json
import math
import re
from dataclasses import dataclass, field
from sqlalchemy import select
from app import memorybank, models, summaries, vectors
from app.context import builder, history, lineage
from app.knowledge import classes as knowledge_classes
VERDICTS = (
"not_created",
"created_but_evicted",
"retained_but_not_ranked",
"ranked_but_not_selected",
"selected_but_not_injected",
"injected",
)
#: Section labels in a stored context snapshot. Copied from the builder's
#: vocabulary so a renamed section fails loudly here.
HISTORY_LABELS = ("history", "recent_history")
SUMMARY_LABEL = "story_summary"
MEMORIES_LABEL = "used_memories"
STATE_LABEL = "narrative_state"
KNOWLEDGE_LABELS = (
knowledge_classes.SECTION_CANON,
knowledge_classes.SECTION_REFERENCE,
knowledge_classes.SECTION_INSPIRATION,
)
@dataclass(frozen=True)
class Fact:
"""A planted fact, and how to recognise it in a text.
`carry_groups`: a text carries the fact when every group matches, where a
group matches when any one of its terms appears as a whole word. A memory has
to name both the thing and where it is to carry "where the thing is".
`leak_terms`: any one of these in another layer means that layer carries the
fact. This is deliberately looser than `carry_groups`. For isolation, a
mention is enough to disqualify.
"""
fact_id: str
sentence: str
carry_groups: tuple[tuple[str, ...], ...]
leak_terms: tuple[str, ...]
def carried_by(self, text: str | None) -> bool:
low = (text or "").lower()
return all(any(_has_word(low, term) for term in group) for group in self.carry_groups)
def mentioned_by(self, text: str | None) -> bool:
low = (text or "").lower()
return any(_has_word(low, term) for term in self.leak_terms)
def _has_word(low: str, term: str) -> bool:
return re.search(rf"(?<![a-z]){re.escape(term.lower())}(?![a-z])", low) is not None
#: The fixture's planted fact. Chosen to be natural in a tavern scene and absent
#: from every existing fixture: no "sundial" or "teapot" appears anywhere in the
#: Westhaven campaign, its knowledge files or its beats.
FACT_F = Fact(
fact_id="F-amber-sundial",
sentence="Mara slipped the amber sundial inside the cracked teapot on the tavern's top shelf.",
carry_groups=(("sundial",), ("teapot",)),
leak_terms=("sundial", "teapot"),
)
#: The abandoned-line control fact.
FACT_G = Fact(
fact_id="G-iron-weathervane",
sentence="Edrin buried the iron weathervane beneath the mill's broken waterwheel.",
carry_groups=(("weathervane",), ("waterwheel",)),
leak_terms=("weathervane", "waterwheel"),
)
# ------------------------------------------------------------------ reading
def _lineage_actions(db, adventure):
path = lineage.path_of(db, adventure)
return (
db.query(models.Action)
.filter(models.Action.adventure_id == adventure.id, path.clause(models.Action))
.order_by(models.Action.depth, models.Action.id)
.all()
)
def covering_memories(db, adventure, depth: int, *, any_branch: bool = False):
"""Memories whose source range covers `depth`, oldest first."""
query = select(models.Memory).where(
models.Memory.adventure_id == adventure.id,
models.Memory.source_start <= depth,
models.Memory.source_end >= depth,
)
if not any_branch:
query = query.where(lineage.path_of(db, adventure).clause(models.Memory))
return db.execute(query.order_by(models.Memory.id)).scalars().all()
def planting_block_end(db, adventure, plant_depth: int) -> int:
"""The last depth of the memory block holding the planted turn.
Taken from the memory that covers it where one exists. Before one exists it
is the furthest a block could reach, so a later-narration check never counts
a turn inside the planting block as a repetition.
"""
rows = covering_memories(db, adventure, plant_depth)
if rows:
return max(row.source_end for row in rows)
return plant_depth + memorybank.MEMORY_INTERVAL
# ---------------------------------------------------------------- isolation
def isolation(db, adventure, fact: Fact, plant_depth: int, *,
recall_snapshot: dict | None = None,
recall_depth: int | None = None) -> dict:
"""Every layer other than memory that could carry F, checked.
Returns `{check: {"ok": bool, "detail": str}}` and `ok` over all of them.
With `recall_snapshot`, the recall turn's stored context, the prompt-level
checks (history window, summary section, knowledge sections) are made
against what the narrator was actually given.
"""
checks: dict[str, dict] = {}
document = adventure.narrative_state or {}
hits = [key for key in ("entities", "facts", "relationships", "threads", "scene",
"possessions")
if fact.mentioned_by(json.dumps(document.get(key), default=str))]
checks["state_document"] = {
"ok": not hits and not fact.mentioned_by(json.dumps(document, default=str)),
"detail": f"mentioned in {hits}" if hits else "absent",
}
snapshot_hits = []
later_hits = []
block_end = planting_block_end(db, adventure, plant_depth)
for action in _lineage_actions(db, adventure):
if fact.mentioned_by(json.dumps(action.narrative_state_after, default=str)):
snapshot_hits.append(action.depth)
if (action.type == "ai" and action.depth is not None and action.depth > block_end
and (recall_depth is None or action.depth < recall_depth)
and fact.mentioned_by(action.text)):
later_hits.append(action.depth)
checks["state_snapshots"] = {
"ok": not snapshot_hits,
"detail": f"mentioned in snapshots at depths {snapshot_hits[:10]}" if snapshot_hits
else "absent from every node's narrative_state_after on the active lineage",
}
checks["later_narration"] = {
"ok": not later_hits,
"detail": (f"narration after the planting block (ends at depth {block_end}) "
f"mentions the fact at depths {later_hits[:10]}") if later_hits
else f"no narrator turn after depth {block_end} mentions the fact",
}
active = summaries.current(db, adventure)
summary_text = active.text if active is not None else ""
if recall_snapshot is not None:
summary_text += "\n" + _section(recall_snapshot, SUMMARY_LABEL)
checks["summary"] = {
"ok": not fact.mentioned_by(summary_text),
"detail": "the active summary mentions the fact" if fact.mentioned_by(summary_text)
else ("absent from the active summary" if active is not None else "no summary yet"),
}
sources = db.execute(
select(models.KnowledgeSource.content).where(
models.KnowledgeSource.adventure_id == adventure.id)
).scalars().all()
knowledge_text = "\n".join(s or "" for s in sources)
if recall_snapshot is not None:
knowledge_text += "\n" + "\n".join(_section(recall_snapshot, l) for l in KNOWLEDGE_LABELS)
checks["knowledge"] = {
"ok": not fact.mentioned_by(knowledge_text),
"detail": "imported knowledge mentions the fact" if fact.mentioned_by(knowledge_text)
else f"absent from {len(sources)} imported source(s)",
}
if recall_snapshot is not None:
hist = recall_snapshot.get("history") or {}
floor = hist.get("floor_depth")
history_text = "\n".join(_section(recall_snapshot, l) for l in HISTORY_LABELS)
outside = floor is not None and plant_depth < floor
checks["recent_history"] = {
"ok": outside and not fact.carried_by(history_text),
"detail": (f"history window starts at depth {floor}; planted at {plant_depth}; "
f"fact text in history sections: {fact.carried_by(history_text)}"),
}
checks["state_section"] = {
"ok": not fact.mentioned_by(_section(recall_snapshot, STATE_LABEL)),
"detail": "the recall prompt's narrative_state section "
+ ("mentions the fact" if fact.mentioned_by(_section(recall_snapshot, STATE_LABEL))
else "does not mention the fact"),
}
return {"ok": all(c["ok"] for c in checks.values()), "checks": checks}
def _section(snapshot: dict, label: str) -> str:
return "\n".join(s.get("text", "") for s in (snapshot.get("sections") or [])
if s.get("label") == label)
# ------------------------------------------------------------------- stages
async def rank_bank(db, adventure, settings, query: str, embed) -> dict:
"""Production's ranking, recomputed for `query`, for every eligible memory.
The same catalogue clause, the same cosine, the same pin rule, the same
redundancy suppression helper. Returns every scored row, not just the top-k,
because "where did F rank" is the question.
"""
catalogue = db.execute(
select(models.Memory.id, models.Memory.pinned, models.Memory.authority,
models.Memory.embedding_blob).where(
models.Memory.adventure_id == adventure.id,
lineage.path_of(db, adventure).clause(models.Memory),
models.Memory.forgotten.is_(False),
models.Memory.embedded.is_(True),
)
).all()
if not catalogue or not query.strip():
return {"query": query, "scored": [], "selected": [], "top_k": settings.memory_top_k}
[query_vec] = await embed([query])
held = {row.id: vectors.unpack(row.embedding_blob) for row in catalogue if row.embedding_blob}
authority_of = {row.id: row.authority for row in catalogue}
scored = sorted(
((vectors.cosine(query_vec, held[row.id]), row.id, row.pinned)
for row in catalogue if row.id in held),
key=lambda r: r[0], reverse=True,
)
top_k = max(1, settings.memory_top_k)
used = [r for r in scored if r[2]]
remaining = max(0, top_k - len(used))
candidates = [r for r in scored if not r[2]]
kept, suppressed = memorybank._drop_redundant(candidates, held, authority_of, remaining)
selected = {r[1] for r in used + kept}
suppressed_by = dict(suppressed)
return {
"query": query,
"top_k": top_k,
"scored": [
{"rank": i + 1, "memory_id": memory_id, "similarity": round(score, 4),
"pinned": pinned, "selected": memory_id in selected,
"suppressed_as_duplicate_of": suppressed_by.get(memory_id)}
for i, (score, memory_id, pinned) in enumerate(scored)
],
"selected": sorted(selected),
}
def production_query(adventure, exclude_action_id: int | None) -> str:
"""The retrieval query a turn used: its newest actions, as `retrieve_memories` builds it."""
recent = history.tail(adventure, memorybank.RETRIEVAL_WINDOW_ACTIONS, exclude_action_id)
return builder.truncate_to_last_tokens(
"\n\n".join(a.text for a in recent), memorybank.RETRIEVAL_WINDOW_TOKENS)
def eviction_order(db, adventure) -> list[int]:
"""The order `_evict_over_capacity` would take unpinned active memories in."""
from sqlalchemy import func
return db.execute(
select(models.Memory.id).where(
models.Memory.adventure_id == adventure.id,
models.Memory.forgotten.is_(False),
models.Memory.pinned.is_(False),
).order_by(func.coalesce(models.Memory.last_used_at, models.Memory.created_at),
models.Memory.use_count)
).scalars().all()
async def diagnose(db, adventure, settings, fact: Fact, plant_depth: int, *,
recall_action: models.Action, embed) -> dict:
"""The four stages for `fact`, judged at `recall_action`, the recall turn's AI node.
Ranking is recomputed with the query that turn used, and checked against the
turn's own stored `memories.used`. Injection is read from that snapshot, so
it reports what the narrator was actually given, not a re-run.
"""
snapshot = recall_action.context_snapshot or {}
out: dict = {"fact_id": fact.fact_id, "plant_depth": plant_depth,
"recall_depth": recall_action.depth}
covering = covering_memories(db, adventure, plant_depth)
carrying = [m for m in covering if fact.carried_by(m.text)]
elsewhere = [m for m in db.execute(select(models.Memory).where(
models.Memory.adventure_id == adventure.id)).scalars().all()
if fact.carried_by(m.text) and m not in carrying]
creation_input = []
for memory in covering:
block = memorybank.source_block(db, memory)
raw = "\n\n".join(a.text for a in block)
excerpt = builder.truncate_to_last_tokens(raw, memorybank.MEMORY_EXCERPT_TOKENS)
creation_input.append({
"memory_id": memory.id, "source_start": memory.source_start,
"source_end": memory.source_end, "block_tokens": builder.count_tokens(raw),
"fact_in_block": fact.carried_by(raw),
"fact_in_summariser_excerpt": fact.carried_by(excerpt),
"memory_text": memory.text,
})
memory = carrying[0] if carrying else None
out["created"] = {
"yes": memory is not None,
"memory_id": getattr(memory, "id", None),
"source_start": getattr(memory, "source_start", None),
"source_end": getattr(memory, "source_end", None),
"memory_text": getattr(memory, "text", None),
"covering_memories": creation_input,
"no_covering_memory": not covering,
"carried_by_other_memories": [
{"memory_id": m.id, "source_start": m.source_start, "source_end": m.source_end}
for m in elsewhere],
}
if memory is None:
out["verdict"] = "not_created"
return out
order = eviction_order(db, adventure)
active = db.execute(select(models.Memory.id).where(
models.Memory.adventure_id == adventure.id,
models.Memory.forgotten.is_(False))).scalars().all()
on_lineage = db.execute(select(models.Memory.id).where(
models.Memory.id == memory.id,
lineage.path_of(db, adventure).clause(models.Memory))).scalar() is not None
out["retained"] = {
"yes": not memory.forgotten,
"forgotten": memory.forgotten,
"pinned": memory.pinned,
"embedded": memory.embedded,
"on_active_lineage": on_lineage,
"use_count": memory.use_count,
"last_used_at": str(memory.last_used_at) if memory.last_used_at else None,
"created_at": str(memory.created_at),
"active_memories": len(active),
"memory_bank_capacity": settings.memory_bank_capacity,
"eviction_position": (order.index(memory.id) + 1) if memory.id in order else None,
"reason": ("evicted: marked forgotten by capacity eviction" if memory.forgotten
else "active"),
}
if memory.forgotten:
out["verdict"] = "created_but_evicted"
return out
query = production_query(adventure, recall_action.id)
ranking = await rank_bank(db, adventure, settings, query, embed)
row = next((r for r in ranking["scored"] if r["memory_id"] == memory.id), None)
stored_used = [m.get("id") for m in (snapshot.get("memories") or {}).get("used") or []]
out["ranked"] = {
"yes": row is not None and row["rank"] <= ranking["top_k"],
"eligible": row is not None,
"lexical_score": None, # memory ranking has no lexical term (CONTEXT-AND-MEMORY §20)
"semantic_score": row["similarity"] if row else None,
"final_score": row["similarity"] if row else None,
"pin_effect": "always selected" if memory.pinned else "none",
"rank": row["rank"] if row else None,
"of": len(ranking["scored"]),
"top_k_cutoff": ranking["top_k"],
"selected": bool(row and row["selected"]),
"suppressed_as_duplicate_of": row["suppressed_as_duplicate_of"] if row else None,
"query": query,
"replica_matches_stored_selection": sorted(stored_used) == ranking["selected"],
}
if row is None or row["rank"] > ranking["top_k"] and not row["selected"]:
out["verdict"] = "retained_but_not_ranked"
return out
if not row["selected"]:
out["verdict"] = "ranked_but_not_selected"
return out
section = _section(snapshot, MEMORIES_LABEL)
injected = memory.id in stored_used and memory.text in section
out["injected"] = {
"yes": injected,
"context_component": MEMORIES_LABEL,
"in_stored_memories_used": memory.id in stored_used,
"text_in_section": memory.text in section,
"token_count": builder.count_tokens(section) if section else 0,
}
out["verdict"] = "injected" if injected else "selected_but_not_injected"
return out
# ---------------------------------------------------------------- the stubs
@dataclass
class BestCaseSummariser:
"""The ideal memory writer: F survives if, and only if, F reached it.
A memory keeps every sentence of the excerpt that carries a planted fact, and
adds one sentence naming the block's own distinct detail so memories differ.
Summary updates never repeat a planted fact, so the summary layer stays out of
the experiment. Every excerpt it was given is kept, for the creation-window
diagnostic.
"""
facts: tuple[Fact, ...] = (FACT_F, FACT_G)
excerpts: list = field(default_factory=list)
async def complete(self, system, user, *, temperature=0.3, max_tokens=400):
if "Current story summary:" in user:
return "The travellers kept moving through the country around Westhaven."
excerpt = user.split("Story excerpt:\n\n", 1)[-1].rsplit("\n\nMemory:", 1)[0]
self.excerpts.append(excerpt)
kept = [s.strip() for s in re.split(r"(?<=[.!?])\s+", excerpt)
if any(f.carried_by(s) for f in self.facts)]
detail = re.findall(r"\bat the ([a-z]+ [a-z]+)\b", excerpt.lower())
tail = f"The travellers spent time at the {detail[-1]}." if detail else \
"The travellers pressed on."
return " ".join(dict.fromkeys(kept + [tail]))
#: Words that mean the same thing to `ConceptEmbedder`. The point is only that a
#: paraphrase lands near the original; the table is the model of that.
CONCEPTS = {
"timepiece": ("sundial", "dial", "hour", "hours", "clock", "timepiece"),
"vessel": ("teapot", "pot", "kettle", "tea", "jar"),
"hid": ("hid", "hide", "hidden", "slipped", "tucked", "put", "stashed"),
"weathervane": ("weathervane", "vane"),
"waterwheel": ("waterwheel", "wheel", "mill"),
}
_WORD_TO_CONCEPT = {w: c for c, words in CONCEPTS.items() for w in words}
DIMENSIONS = 96
@dataclass
class ConceptEmbedder:
"""A deterministic embedding: concepts in fixed dimensions, other words hashed."""
calls: int = 0
async def embed(self, texts):
self.calls += 1
return [self.vector(t) for t in texts]
@staticmethod
def vector(text: str) -> list[float]:
v = [0.0] * DIMENSIONS
v[0] = 0.2 # every text shares a little, as real embeddings do
concept_names = list(CONCEPTS)
for word in re.findall(r"[a-z]+", text.lower()):
concept = _WORD_TO_CONCEPT.get(word)
if concept is not None:
v[1 + concept_names.index(concept)] += 3.0
elif len(word) > 3:
bucket = int(hashlib.sha256(word.encode()).hexdigest(), 16)
v[1 + len(concept_names) + bucket % (DIMENSIONS - 1 - len(concept_names))] += 1.0
norm = math.sqrt(sum(x * x for x in v)) or 1.0
return [x / norm for x in v]
# ---------------------------------------------------------------- scenarios
#: Filler places. No word here is in `CONCEPTS`, and none names a planted fact.
PLACES = (
"north gate", "salt market", "ferry landing", "chapel steps", "rope walk",
"fish stalls", "old bridge", "tanner yard", "lamp street", "weir path",
"grain store", "boat yard", "watch house", "cloth hall", "eel traps",
"sheep fold", "smith forge", "stone quay", "reed beds", "toll booth",
)
PARAPHRASE_QUERY = "I ask Mara where she tucked the little brass dial that tells the hour."
UNRELATED_QUERY = "I ask the ferryman what rope costs at the landing this season."
def filler_prose(index: int, words: int) -> str:
"""Narration that moves on and never touches a planted fact."""
place = PLACES[index % len(PLACES)]
sentence = (f"At the {place} the travellers stopped, listened to the gulls over the "
f"grey water, and talked about the long road north.")
reps = max(1, round(words / len(sentence.split())))
return " ".join([sentence] * reps)
@dataclass
class Scenario:
"""One deterministic campaign. Depths: the opening is 0, turn *n*'s player
action is 2n-1 and its reply 2n."""
name: str
turns: int = 52
capacity: int = 80
top_k: int = 5
budget: int = 4096
prose_words: int = 60
plant_turn: int = 1
recall_text: str = "I ask Mara where she hid the amber sundial."
pin_first_memory: bool = False
lineage_control: bool = False
diagnose_recall: bool = True
SCENARIOS = {
"independent_default": Scenario("independent_default"),
"past_capacity": Scenario("past_capacity", capacity=6),
"past_capacity_pinned": Scenario("past_capacity_pinned", capacity=6, pin_first_memory=True),
# Closer to the shipped ratio (memory_top_k 5 against capacity 80): most of
# the bank is not retrieved on a given turn.
"past_capacity_low_top_k": Scenario("past_capacity_low_top_k", capacity=8, top_k=2),
"long_block_fact_early": Scenario("long_block_fact_early", turns=10, prose_words=850,
plant_turn=1, budget=16384),
"long_block_fact_late": Scenario("long_block_fact_late", turns=10, prose_words=850,
plant_turn=3, budget=16384),
"lineage_control": Scenario("lineage_control", lineage_control=True),
}
class ScriptNarrator:
"""Stands in for the narrator: returns `next_reply`, with an empty state block."""
next_reply = ""
last_usage = None
prompts: list = []
def __init__(self, *a, **k):
pass
async def generate(self, parts, *, temperature, max_tokens):
ScriptNarrator.prompts.append((parts.system, parts.story))
yield ("text", ScriptNarrator.next_reply)
def run_scenario(scenario: Scenario) -> dict:
"""Plays `scenario` through the real turn route and returns everything measured.
Uses the database `app.database` is already bound to, creating and dropping
its tables, the way the suite's fixtures do. Patches are applied here and
removed before returning, so this runs the same under pytest and from the CLI.
"""
import asyncio
from fastapi import Depends
from fastapi.testclient import TestClient
from sqlalchemy.orm import undefer
from app import auth, limits
from app.database import Base, SessionLocal, engine, get_db
from app.main import app
from app.routers import adventures as adventure_routes
summariser = BestCaseSummariser()
embedder = ConceptEmbedder()
patches = [
(memorybank, "summary_provider", lambda s: summariser),
(memorybank, "embedding_provider", lambda s: embedder),
# Post-turn work is settled explicitly after each turn, so eviction
# happens at a known point rather than whenever a background task runs.
(memorybank, "schedule_post_turn", lambda adventure: None),
(adventure_routes.turns, "OpenAICompatibleProvider", ScriptNarrator),
(limits, "check_row_cap", lambda *a, **k: None),
]
saved = [(obj, name, getattr(obj, name)) for obj, name, _ in patches]
for obj, name, value in patches:
setattr(obj, name, value)
ScriptNarrator.prompts = []
Base.metadata.create_all(bind=engine)
memorybank._vector_cache.clear()
with SessionLocal() as db:
user = models.User(is_guest=False, email=f"b1-{scenario.name}@example.com")
db.add(user)
db.flush()
db.add(models.Settings(
user_id=user.id, model="script", endpoint_url="http://127.0.0.1:9/v1",
embedding_model="concept-embed", context_token_budget=scenario.budget,
max_output_tokens=500, memory_bank_capacity=scenario.capacity,
memory_top_k=scenario.top_k,
))
adventure = models.Adventure(
user_id=user.id, title=f"B.1 {scenario.name}", memory_bank_enabled=True,
auto_summarize=True, persona_name="Aldric",
)
db.add(adventure)
db.flush()
db.add(models.Action(adventure_id=adventure.id, type="start",
text="Rain over Westhaven, and the tavern door banging in the wind."))
db.commit()
adv, user_id = adventure.id, user.id
app.dependency_overrides[auth.get_current_user] = (
lambda db=Depends(get_db): db.get(models.User, user_id)
)
client = TestClient(app)
result: dict = {"scenario": scenario.__dict__.copy(), "trace": []}
def call(method, path, body=None, expect=200):
response = client.request(method, f"/api/adventures/{adv}{path}", json=body)
assert response.status_code == expect, (path, response.status_code, response.text[:300])
return response.json() if response.content else None
def marks():
with SessionLocal() as db:
rows = db.execute(select(models.Memory.id, models.Memory.forgotten,
models.Memory.embedded).where(
models.Memory.adventure_id == adv)).all()
summaries_n = db.query(models.Summary).filter_by(adventure_id=adv).count()
return tuple(sorted(rows)), summaries_n
def settle():
for _ in range(12):
before = marks()
asyncio.run(memorybank.run_post_turn(adv))
if marks() == before:
return
def memories():
with SessionLocal() as db:
return [dict(row._mapping) for row in db.execute(select(
models.Memory.id, models.Memory.text, models.Memory.source_start,
models.Memory.source_end, models.Memory.forgotten, models.Memory.pinned,
models.Memory.use_count, models.Memory.last_used_at, models.Memory.branch_id,
models.Memory.created_at).where(models.Memory.adventure_id == adv)
.order_by(models.Memory.id)).all()]
def turn(kind, text, reply):
ScriptNarrator.next_reply = f"{reply}\n```state\n{{\"events\": []}}\n```"
response = client.post(f"/api/adventures/{adv}/actions", json={"type": kind, "text": text})
assert response.status_code == 200, response.text[:300]
assert '"type": "error"' not in response.text, response.text[-300:]
plant_depth = None
f_memory_id = None
pinned_id = None
known: dict[int, dict] = {}
g: dict = {}
try:
for n in range(1, scenario.turns + 1):
if n == scenario.plant_turn:
turn("story", FACT_F.sentence, filler_prose(n, scenario.prose_words))
with SessionLocal() as db:
plant_depth = db.query(models.Action.depth).filter_by(
adventure_id=adv, text=FACT_F.sentence).scalar()
elif scenario.lineage_control and n == 21:
call("POST", "/checkpoints", {"name": "before the mill"}, expect=201)
turn("story", FACT_G.sentence, filler_prose(n, scenario.prose_words))
with SessionLocal() as db:
g["plant_depth"] = db.query(models.Action.depth).filter_by(
adventure_id=adv, text=FACT_G.sentence).scalar()
elif scenario.lineage_control and n == 30:
# Line A carries G's memory. Mark it, then abandon it: Undo back
# to before G was planted and write something else.
g["line_a"] = call("POST", "/checkpoints", {"name": "line A, after the mill"},
expect=201)["id"]
with SessionLocal() as db:
g_rows = [m for m in db.execute(select(models.Memory).where(
models.Memory.adventure_id == adv)).scalars() if FACT_G.carried_by(m.text)]
g["memory_ids"] = [m.id for m in g_rows]
with SessionLocal() as db:
g["last_action_id_before_divergence"] = db.query(models.Action.id).filter_by(
adventure_id=adv).order_by(models.Action.id.desc()).limit(1).scalar()
for _ in range(9):
call("POST", "/undo")
turn("do", f"I turn away from the mill and walk to the {PLACES[n % len(PLACES)]}.",
filler_prose(n + 100, scenario.prose_words))
g["diverged_at_turn"] = n
else:
turn("do", f"I walk on to the {PLACES[n % len(PLACES)]}.",
filler_prose(n, scenario.prose_words))
settle()
rows = memories()
created = [r["id"] for r in rows if r["id"] not in known]
newly_forgotten = [r["id"] for r in rows
if r["forgotten"] and not known.get(r["id"], {}).get("forgotten")]
for r in rows:
known[r["id"]] = r
if f_memory_id is None and plant_depth is not None:
for r in rows:
if (r["source_start"] is not None and r["source_start"] <= plant_depth
<= r["source_end"] and FACT_F.carried_by(r["text"])):
f_memory_id = r["id"]
if scenario.pin_first_memory and pinned_id is None:
candidate = next((r for r in rows if r["id"] != f_memory_id), None)
if candidate is not None:
call("PATCH", f"/memories/{candidate['id']}", {"pinned": True})
pinned_id = candidate["id"]
f_row = known.get(f_memory_id) if f_memory_id else None
result["trace"].append({
"turn": n,
"active": sum(1 for r in rows if not r["forgotten"]),
"total": len(rows),
"created": created,
"evicted": newly_forgotten,
"created_and_evicted_same_turn": sorted(set(created) & set(newly_forgotten)),
"f_memory_id": f_memory_id,
"f_forgotten": bool(f_row and f_row["forgotten"]),
"f_use_count": f_row["use_count"] if f_row else None,
})
turn("do", scenario.recall_text, filler_prose(999, scenario.prose_words))
with SessionLocal() as db:
adventure = db.get(models.Adventure, adv)
settings = db.query(models.Settings).filter_by(user_id=user_id).first()
recall_action = (db.query(models.Action)
.filter(models.Action.adventure_id == adv,
models.Action.type == "ai")
.options(undefer(models.Action.context_snapshot))
.order_by(models.Action.id.desc()).first())
result["plant_depth"] = plant_depth
result["recall_depth"] = recall_action.depth
result["isolation"] = isolation(
db, adventure, FACT_F, plant_depth,
recall_snapshot=recall_action.context_snapshot,
recall_depth=recall_action.depth)
result["diagnosis"] = asyncio.run(diagnose(
db, adventure, settings, FACT_F, plant_depth,
recall_action=recall_action, embed=embedder.embed))
result["summariser_excerpts"] = len(summariser.excerpts)
memory_id = result["diagnosis"]["created"]["memory_id"]
if memory_id is not None and not result["diagnosis"]["retained"]["forgotten"]:
variants = {}
for label, query in (("direct", scenario.recall_text),
("paraphrase", PARAPHRASE_QUERY),
("unrelated", UNRELATED_QUERY)):
ranking = asyncio.run(rank_bank(db, adventure, settings, query, embedder.embed))
row = next((r for r in ranking["scored"] if r["memory_id"] == memory_id), None)
variants[label] = {"query": query, "rank": row and row["rank"],
"of": len(ranking["scored"]),
"similarity": row and row["similarity"],
"selected": bool(row and row["selected"]),
"top_k": ranking["top_k"]}
result["ranking_variants"] = variants
if memory_id is not None:
result["f_first_used_turn"] = next(
(t["turn"] for t in result["trace"] if (t["f_use_count"] or 0) > 0), None)
result["f_last_use_increase_turn"] = max(
(b["turn"] for a, b in zip(result["trace"], result["trace"][1:])
if (b["f_use_count"] or 0) > (a["f_use_count"] or 0)), default=None)
evicted_turn = next((t["turn"] for t in result["trace"] if t["f_forgotten"]), None)
first_evictions = next((t["evicted"] for t in result["trace"] if t["evicted"]), [])
result["eviction"] = {
"capacity": scenario.capacity,
"f_evicted_at_turn": evicted_turn,
"f_use_count_when_evicted": next(
(t["f_use_count"] for t in result["trace"] if t["f_forgotten"]), None),
"first_eviction_turn": next(
(t["turn"] for t in result["trace"] if t["evicted"]), None),
"first_evicted_ids": first_evictions,
"f_memory_was_first_evicted": bool(f_memory_id and f_memory_id in first_evictions),
"created_and_evicted_same_turn": sorted(
{i for t in result["trace"] for i in t["created_and_evicted_same_turn"]}),
"pinned_memory_id": pinned_id,
"pinned_memory_forgotten": bool(pinned_id and known[pinned_id]["forgotten"]),
}
if scenario.lineage_control:
path_clause = lineage.path_of(db, adventure).clause(models.Memory)
stored = db.execute(select(models.Memory.id).where(
models.Memory.id.in_(g.get("memory_ids") or [-1]))).scalars().all()
eligible = db.execute(select(models.Memory.id).where(
models.Memory.id.in_(g.get("memory_ids") or [-1]), path_clause)).scalars().all()
used_after = set()
injected_text = False
# Only turns played after the divergence. Before it, G was on the
# active line, and a memory of it being used then is correct.
for action in (db.query(models.Action)
.filter(models.Action.adventure_id == adv,
models.Action.type == "ai",
models.Action.id > g["last_action_id_before_divergence"])
.options(undefer(models.Action.context_snapshot))):
snap = action.context_snapshot or {}
for m in (snap.get("memories") or {}).get("used") or []:
if m.get("id") in (g.get("memory_ids") or []):
used_after.add(action.id)
if FACT_G.mentioned_by(_section(snap, MEMORIES_LABEL)):
injected_text = True
g.update(stored=stored, eligible_on_active_line=eligible,
turns_whose_memories_used_named_g=sorted(used_after),
g_text_ever_in_used_memories=injected_text)
if scenario.lineage_control:
call("POST", f"/checkpoints/{g['line_a']}/restore")
with SessionLocal() as db:
adventure = db.get(models.Adventure, adv)
eligible = db.execute(select(models.Memory.id).where(
models.Memory.id.in_(g.get("memory_ids") or [-1]),
lineage.path_of(db, adventure).clause(models.Memory))).scalars().all()
g["eligible_after_returning_to_line_a"] = eligible
result["lineage_control"] = g
return result
finally:
for obj, name, value in saved:
setattr(obj, name, value)
app.dependency_overrides.clear()
adventure_routes.turns._active_turns.clear()
memorybank._vector_cache.clear()
Base.metadata.drop_all(bind=engine)