SilverSight/python/spectral_codebook.py
allaun e81caa4a6a feat(spectral): Neon ENE sync layer for the spectral codebook (dry-run by default)
Adds python/spectral_codebook_db.py: sync codebook rows into
ene.rrc_predictions on the neon-64gb Postgres (NEON_PG convention from
scripts/auto/auto_pipeline.py, default research_stack DB).

- Row shape (flat, SQL-typed, Spark-JDBC readable): equation_id,
  proxy_pred = cluster codeword C0..C8, exact_pred = shape from exact
  lambda under CURRENT ClassifyN.lean thresholds (1.5/4.0 Q16.16,
  integer semantics mirrored), matrix_hash =
  'charpoly=<c1..c8>;pos10=<base-10 positional hash>' (similarity +
  injective identity keys), confidence = 1.0 unique fingerprint / 1/k
  in k-way charpoly collision class; deterministic uuid5 ids so reruns
  upsert idempotently.
- SAFE BY DEFAULT: dry run prints summary + sample SQL and writes
  nothing; --apply required to insert (psycopg2, with --emit-sql
  data/spectral_codebook_sync.sql fallback when the driver is absent).
  --apply has NOT been run; live DB untouched. --verify-schema does a
  read-only column check; schema verified offline against
  scripts/auto/ene_schema.sql in tests (live check left to the user
  per the ask-before-DB-work rule).
- spectral_codebook.py gains --sync-db (always dry-run from that entry
  point). Dry-run counts: 250 rows; C0=35 C1=20 C2=13 C3=79 C4=29
  C5=15 C6=22 C7=19 C8=18; Logogram=69 Signal=131 CognitiveLoad=50;
  183 rows at confidence 1.0.
- docs: 'Neon data layer' section — ENE table map, stale
  ene.rrc_classifications finding (120 rows with artifact spectral
  radii 0.3-0.85 predating the exact-eigenvalue fix; recommend
  re-classification via this codebook), empty landing tables, Spark
  JDBC snippet, arxiv-pg (podman-exec only) citation layer note.
- tests: 8 new dry-run/no-network tests (23 total).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-01 20:39:40 -05:00

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#!/usr/bin/env python3
# /// script
# requires-python = ">=3.10"
# dependencies = []
# ///
"""
spectral_codebook.py — Gap-aware spectral codebook over the PIST matrix corpus.
Implements the "Next Steps" of docs/SPECTRAL_CODEBOOK_ANALYSIS.md, with
corrections found while building it (see docs/SPECTRAL_CODEBOOK_GENERATOR.md):
1. Parse the 250 8×8 integer braid adjacency matrices from
formal/SilverSight/PIST/Matrices250.lean (regex on the auto-generated
`def <name> : Array (Array Int)` blocks, plus the `findMatrix` cases).
2. Compute a full spectral profile per matrix:
- EXACT integer characteristic-polynomial coefficients via the
FaddeevLeVerrier algorithm in fractions.Fraction arithmetic
(the primary, float-free fingerprint),
- spectral radius λ as the max root modulus of that exact char poly
(NumPy eigvals fast path; pure-stdlib DurandKerner fallback),
- power-iteration λ retained only for traceability: the analysis
doc's 9 "mid band" values in (0.5, 1) are power-iteration
NON-CONVERGENCE artifacts — all 9 matrices have exact ρ = 1.0
(peripheral spectrum with several eigenvalues of modulus 1).
3. Gap-aware quantization with a sample-size guard: dedupe byte-identical
matrices first (the corpus has 238 distinct matrices over 250 ids),
find gaps > 3× median gap between consecutive distinct λ, then merge
any segment with fewer than MIN_SUPPORT distinct matrices into its
neighbor across the smaller gap. Points isolated above a suppressed
gap with sub-threshold occupancy are flagged as sparse-tail outliers
rather than treated as clusters.
4. Round-trip: Codebook.encode(matrix) → (codeword, index) and
Codebook.decode(codeword, index) → equation_id are mutually inverse
over the corpus. Neither λ nor the char poly is injective (nilpotent
x^8 class alone has 31 distinct members), so the decode key is the
within-cluster rank index; all collision classes are explicit in the
emitted JSON.
Pure stdlib. NumPy is used only as an optional fast path when importable;
the pure-Python path is authoritative.
Usage:
python3 python/spectral_codebook.py # build + report
python3 python/spectral_codebook.py --check-manifold # incl. 278-row corpus
python3 python/spectral_codebook.py --out data/spectral_codebook.json
"""
from __future__ import annotations
import argparse
import json
import math
import re
import sys
from datetime import date
from fractions import Fraction
from pathlib import Path
from typing import Dict, List, Optional, Sequence, Tuple
try: # optional fast path only; both paths agree to float rounding
import numpy as _np
except ImportError: # pragma: no cover
_np = None
REPO_ROOT = Path(__file__).resolve().parent.parent
MATRICES_LEAN = REPO_ROOT / "formal" / "SilverSight" / "PIST" / "Matrices250.lean"
MANIFOLD_LEAN = REPO_ROOT / "formal" / "SilverSight" / "RRC" / "Q16_16Manifold.lean"
DEFAULT_OUT = REPO_ROOT / "data" / "spectral_codebook.json"
POWER_ITERS = 300 # matches docs/SPECTRAL_CODEBOOK_ANALYSIS.md
GAP_FACTOR = 3.0 # boundary threshold = GAP_FACTOR × median gap
MIN_SUPPORT = 10 # min distinct matrices per cluster (sample-size guard)
LAMBDA_DP = 4 # rounding used for "unique λ" counting (as in doc)
Matrix = Tuple[Tuple[int, ...], ...]
# ──────────────────────────────────────────────────────────────────────
# Parsing Matrices250.lean
# ──────────────────────────────────────────────────────────────────────
_DEF_RE = re.compile(
r"^def\s+(\w+)\s*:\s*Array\s*\(Array\s+Int\)\s*:=\s*\n\s*#\[(.*?)\n\s*\]",
re.MULTILINE | re.DOTALL,
)
_ROW_RE = re.compile(r"#\[([^\]]*)\]")
_FIND_CASE_RE = re.compile(r'\|\s*"([^"]+)"\s*=>\s*some\s+(\w+)')
def parse_matrices_lean(path: Path = MATRICES_LEAN) -> Dict[str, Matrix]:
"""Parse `def <name> : Array (Array Int) := #[#[...], ...]` blocks.
Returns an equation_id → matrix mapping (row-major tuples of ints),
resolving ids through the `findMatrix` match cases when present so the
mapping survives Lean-identifier sanitization of ids.
"""
text = path.read_text()
defs: Dict[str, Matrix] = {}
for name, body in _DEF_RE.findall(text):
rows = tuple(
tuple(int(x) for x in row.split(",") if x.strip())
for row in _ROW_RE.findall(body)
)
if rows:
defs[name] = rows
cases = _FIND_CASE_RE.findall(text)
if cases:
mats = {eid: defs[name] for eid, name in cases if name in defs}
else: # fall back: def name == equation id
mats = dict(defs)
for eid, mat in mats.items():
n = len(mat)
if any(len(r) != n for r in mat):
raise ValueError(f"non-square matrix for {eid}")
return mats
def parse_manifold_ids(path: Path = MANIFOLD_LEAN) -> List[str]:
"""All equationId occurrences (with multiplicity) in the fixture corpus."""
text = path.read_text()
return re.findall(r'equationId\s*:=\s*"([^"]+)"', text)
# ──────────────────────────────────────────────────────────────────────
# Spectral profile
# ──────────────────────────────────────────────────────────────────────
def charpoly_coeffs(mat: Sequence[Sequence[int]]) -> Tuple[int, ...]:
"""Exact characteristic-polynomial coefficients via FaddeevLeVerrier.
For an n×n integer matrix M returns (c1, ..., cn) with
det(λI M) = λ^n + c1·λ^(n1) + ... + cn.
Runs in exact fractions.Fraction arithmetic; every ck is provably an
integer (char poly of an integer matrix), which is asserted.
"""
n = len(mat)
m = [[Fraction(x) for x in row] for row in mat]
aux = [[Fraction(0)] * n for _ in range(n)] # M_0 = 0
coeffs: List[int] = []
c = Fraction(1)
for k in range(1, n + 1):
# M_k = M · (M_{k1} + c_{k1}·I)
shifted = [
[aux[i][j] + (c if i == j else 0) for j in range(n)]
for i in range(n)
]
aux = [
[sum(m[i][t] * shifted[t][j] for t in range(n)) for j in range(n)]
for i in range(n)
]
c = -sum(aux[i][i] for i in range(n)) / k
assert c.denominator == 1, "char-poly coefficient must be integral"
coeffs.append(int(c))
return tuple(coeffs)
def _durand_kerner_max_modulus(coeffs: Sequence[int]) -> float:
"""Max root modulus of the monic polynomial x^n + c1 x^(n-1) + ... + cn.
Pure-stdlib root finder (DurandKerner). Zero roots are stripped
exactly first, so nilpotent classes return 0.0 with no iteration.
"""
poly = [1] + [int(c) for c in coeffs]
# strip exact zero roots (trailing zero coefficients)
while len(poly) > 1 and poly[-1] == 0:
poly.pop()
n = len(poly) - 1
if n == 0:
return 0.0
# Cauchy bound and standard (0.4 + 0.9i)^k seeds
bound = 1.0 + max(abs(c) for c in poly[1:])
roots = [complex(0.4, 0.9) ** k * (bound / 1.1) for k in range(n)]
def ev(z: complex) -> complex:
r = complex(0)
for c in poly:
r = r * z + c
return r
for _ in range(1000):
delta = 0.0
new_roots = []
for i, z in enumerate(roots):
den = complex(1)
for j, w in enumerate(roots):
if j != i:
den *= (z - w)
dz = ev(z) / den if den != 0 else complex(0)
new_roots.append(z - dz)
delta = max(delta, abs(dz))
roots = new_roots
if delta < 1e-13:
break
return max(abs(z) for z in roots)
def spectral_radius(mat: Sequence[Sequence[int]],
coeffs: Optional[Sequence[int]] = None) -> float:
"""Exact-spectrum spectral radius ρ(M) = max |eigenvalue|.
NumPy eigvals fast path when available; otherwise DurandKerner on the
exact integer char poly. Do NOT use power iteration here: it fails to
converge on peripheral spectra (several eigenvalues of equal modulus),
which is exactly what the ρ = 1 matrices in this corpus have.
"""
if _np is not None:
m = _np.asarray(mat, dtype=float)
if m.size == 0:
return 0.0
return float(max(abs(_np.linalg.eigvals(m))))
if coeffs is None:
coeffs = charpoly_coeffs(mat)
return _durand_kerner_max_modulus(coeffs)
def power_iteration(mat: Sequence[Sequence[int]], iters: int = POWER_ITERS) -> float:
"""Power-iteration λ estimate — UNTRUSTED, kept only for traceability
against data/spectral_codebook_raw.json. Does not converge for
peripheral spectra (see spectral_radius)."""
n = len(mat)
if n == 0:
return 0.0
v = [1.0 / math.sqrt(n)] * n
lam = 0.0
for _ in range(iters):
w = [sum(mat[i][j] * v[j] for j in range(n)) for i in range(n)]
norm = math.sqrt(sum(x * x for x in w))
if norm < 1e-12:
return 0.0
lam = norm
v = [x / norm for x in w]
return lam
def density(mat: Sequence[Sequence[int]]) -> float:
"""Total entry weight / n² (matches SpectralN.lean and the raw JSON)."""
n = len(mat)
return sum(sum(row) for row in mat) / (n * n) if n else 0.0
def frobenius(mat: Sequence[Sequence[int]]) -> float:
return math.sqrt(sum(x * x for row in mat for x in row))
def spectral_profile(mat: Sequence[Sequence[int]]) -> dict:
coeffs = charpoly_coeffs(mat)
return {
"spectral_radius": round(spectral_radius(mat, coeffs), 6),
"lambda_power_iteration": round(power_iteration(mat), 6),
"charpoly": list(coeffs),
"density": round(density(mat), 4),
"frobenius": round(frobenius(mat), 4),
"trace": sum(mat[i][i] for i in range(len(mat))),
}
# ──────────────────────────────────────────────────────────────────────
# Gap-aware quantization (deduped, sample-size guarded)
# ──────────────────────────────────────────────────────────────────────
def gap_quantize(lambda_counts: Dict[float, int],
factor: float = GAP_FACTOR,
min_support: int = MIN_SUPPORT) -> dict:
"""Gap-aware boundaries over distinct-λ values with occupancy counts.
`lambda_counts` maps λ → number of DISTINCT matrices at that λ (dedupe
byte-identical matrices before calling; 12 of the 250 corpus matrices
are exact duplicates of another).
Candidate boundaries sit at midpoints of gaps > factor × median gap.
Sample-size guard: segments holding < min_support distinct matrices are
merged into the neighbor across the smaller bounding gap, so no cluster
is asserted on a handful of points. The suppressed high-end boundaries
define a sparse-tail cutoff: everything above the lowest suppressed
boundary with < min_support mass above it is an outlier region, not a
cluster.
"""
uniq = sorted(lambda_counts)
if len(uniq) < 2:
return {"boundaries": [], "median_gap": 0.0, "threshold": 0.0,
"candidates": [], "suppressed": [], "sparse_tail_cutoff": None}
gaps = [uniq[i + 1] - uniq[i] for i in range(len(uniq) - 1)]
sizes = sorted(gaps)
mid = len(sizes) // 2
median = sizes[mid] if len(sizes) % 2 else 0.5 * (sizes[mid - 1] + sizes[mid])
threshold = factor * median
# candidate boundary index i ↔ gap between uniq[i] and uniq[i+1]
candidates = [i for i, g in enumerate(gaps) if g > threshold]
def seg_counts(bnds: List[int]) -> List[int]:
counts, prev = [], 0
for b in bnds + [len(uniq) - 1]:
counts.append(sum(lambda_counts[uniq[k]] for k in range(prev, b + 1)))
prev = b + 1
return counts
kept = list(candidates)
suppressed: List[int] = []
while kept:
counts = seg_counts(kept)
weak = [s for s, c in enumerate(counts) if c < min_support]
if not weak:
break
s = min(weak, key=lambda i: counts[i])
# bounding boundaries of segment s in `kept`
options = []
if s > 0:
options.append(kept[s - 1])
if s < len(kept):
options.append(kept[s])
drop = min(options, key=lambda b: gaps[b]) # merge across smaller gap
kept.remove(drop)
suppressed.append(drop)
def midpoint(i: int) -> float:
return 0.5 * (uniq[i] + uniq[i + 1])
total = sum(lambda_counts.values())
sparse_cutoff: Optional[float] = None
for b in sorted(suppressed):
above = sum(lambda_counts[v] for v in uniq if v > midpoint(b))
if above < min_support:
sparse_cutoff = midpoint(b)
break
return {
"boundaries": [round(midpoint(b), 6) for b in sorted(kept)],
"median_gap": median,
"threshold": threshold,
"candidates": [round(midpoint(b), 6) for b in sorted(candidates)],
"suppressed": [round(midpoint(b), 6) for b in sorted(suppressed)],
"sparse_tail_cutoff": sparse_cutoff,
"total_support": total,
}
class Codebook:
"""Gap-aware spectral codebook: matrix → (codeword, index) → equation_id."""
def __init__(self, matrices: Dict[str, Matrix],
gap_factor: float = GAP_FACTOR,
min_support: int = MIN_SUPPORT) -> None:
self.matrices = matrices
self.gap_factor = gap_factor
self.min_support = min_support
self.profiles: Dict[str, dict] = {
eid: spectral_profile(mat) for eid, mat in matrices.items()
}
# dedupe byte-identical matrices BEFORE gap analysis
self.matrix_groups: Dict[Matrix, List[str]] = {}
for eid in sorted(self.profiles):
self.matrix_groups.setdefault(matrices[eid], []).append(eid)
lambda_counts: Dict[float, int] = {}
for mat, ids in self.matrix_groups.items():
lam = self.profiles[ids[0]]["spectral_radius"]
lambda_counts[lam] = lambda_counts.get(lam, 0) + 1
self.quant = gap_quantize(lambda_counts, gap_factor, min_support)
self.boundaries: List[float] = self.quant["boundaries"]
# cluster assignment + deterministic within-cluster rank
by_cluster: Dict[int, List[str]] = {}
for eid, p in self.profiles.items():
by_cluster.setdefault(self.cluster_of(p["spectral_radius"]), []).append(eid)
self._assign: Dict[str, Tuple[str, int]] = {}
self._decode: Dict[Tuple[str, int], str] = {}
self._by_matrix: Dict[Matrix, Tuple[str, int]] = {}
for ci in sorted(by_cluster):
members = sorted(
by_cluster[ci],
key=lambda e: (
self.profiles[e]["spectral_radius"],
self.profiles[e]["charpoly"],
self.matrices[e],
e,
),
)
for idx, eid in enumerate(members):
cw = f"C{ci}"
self._assign[eid] = (cw, idx)
self._decode[(cw, idx)] = eid
# first (canonical) entry wins for byte-identical duplicates
self._by_matrix.setdefault(self.matrices[eid], (cw, idx))
def cluster_of(self, lam: float) -> int:
return sum(1 for b in self.boundaries if lam > b)
def is_sparse_tail(self, lam: float) -> bool:
cut = self.quant["sparse_tail_cutoff"]
return cut is not None and lam > cut
def codeword_of(self, equation_id: str) -> Tuple[str, int]:
return self._assign[equation_id]
def encode(self, mat: Sequence[Sequence[int]]) -> Tuple[str, Optional[int]]:
"""(codeword, index) for a matrix. Known matrices get their exact
index (canonical entry for byte-identical duplicates); novel
matrices get a cluster codeword with index None."""
key = tuple(tuple(int(x) for x in row) for row in mat)
if key in self._by_matrix:
return self._by_matrix[key]
return f"C{self.cluster_of(spectral_radius(key))}", None
def decode(self, codeword: str, index: int) -> str:
return self._decode[(codeword, index)]
# ── reporting ────────────────────────────────────────────────────
def cluster_table(self) -> List[dict]:
clusters: Dict[str, List[str]] = {}
for eid, (cw, _) in self._assign.items():
clusters.setdefault(cw, []).append(eid)
rows = []
for cw in sorted(clusters, key=lambda c: int(c[1:])):
ids = clusters[cw]
lams = [self.profiles[e]["spectral_radius"] for e in ids]
distinct = len({self.matrices[e] for e in ids})
rows.append({
"codeword": cw,
"count": len(ids),
"distinct_matrices": distinct,
"lambda_min": round(min(lams), 6),
"lambda_max": round(max(lams), 6),
"sparse_tail_members": sum(1 for l in lams if self.is_sparse_tail(l)),
})
return rows
def collision_report(self) -> dict:
lam_groups: Dict[float, List[str]] = {}
cp_groups: Dict[Tuple[int, ...], List[str]] = {}
for eid, p in self.profiles.items():
lam_groups.setdefault(round(p["spectral_radius"], LAMBDA_DP), []).append(eid)
cp_groups.setdefault(tuple(p["charpoly"]), []).append(eid)
def collide(groups): # groups with >1 member
return {k: sorted(v) for k, v in groups.items() if len(v) > 1}
lam_c, cp_c = collide(lam_groups), collide(cp_groups)
mat_c = {m: ids for m, ids in self.matrix_groups.items() if len(ids) > 1}
# cospectral = same char poly but NOT byte-identical matrices
dup_sets = [frozenset(v) for v in mat_c.values()]
cospectral = {
",".join(map(str, k)): v
for k, v in cp_c.items() if frozenset(v) not in dup_sets
}
pi_mismatch = [
eid for eid, p in self.profiles.items()
if abs(p["spectral_radius"] - p["lambda_power_iteration"]) > 1e-3
]
n = len(self.profiles)
return {
"corpus_size": n,
"distinct_matrices": len(self.matrix_groups),
"duplicate_matrix_groups": len(mat_c),
"duplicate_matrix_members": sum(len(v) for v in mat_c.values()),
"duplicate_matrix_classes": [sorted(v) for v in mat_c.values()],
"unique_lambda_4dp": len(lam_groups),
"lambda_collision_groups": len(lam_c),
"lambda_collision_members": sum(len(v) for v in lam_c.values()),
"unique_charpoly": len(cp_groups),
"charpoly_collision_groups": len(cp_c),
"charpoly_collision_members": sum(len(v) for v in cp_c.values()),
"charpoly_collision_classes": {
",".join(map(str, k)): v for k, v in cp_c.items()
},
"cospectral_nonidentical_groups": len(cospectral),
"cospectral_nonidentical": cospectral,
"identified_by_lambda_4dp": sum(1 for v in lam_groups.values() if len(v) == 1),
"identified_by_charpoly": sum(1 for v in cp_groups.values() if len(v) == 1),
"power_iteration_artifacts": sorted(pi_mismatch),
"power_iteration_artifact_count": len(pi_mismatch),
}
def to_json(self) -> dict:
entries = []
for eid in sorted(self.profiles):
cw, idx = self._assign[eid]
p = self.profiles[eid]
entry = {
"equation_id": eid,
"codeword": cw,
"index": idx,
"spectral_radius": p["spectral_radius"],
"lambda_power_iteration": p["lambda_power_iteration"],
"charpoly": p["charpoly"],
"density": p["density"],
"frobenius": p["frobenius"],
"trace": p["trace"],
}
if self.is_sparse_tail(p["spectral_radius"]):
entry["sparse_tail"] = True
twins = [t for t in self.matrix_groups[self.matrices[eid]] if t != eid]
if twins:
entry["identical_matrix_ids"] = twins
entries.append(entry)
return {
"schema": "spectral_codebook_v2",
"generated": date.today().isoformat(),
"source": "formal/SilverSight/PIST/Matrices250.lean",
"matrix_count": len(entries),
"lambda_semantics": (
"spectral_radius is the exact max root modulus of the integer "
"characteristic polynomial (charpoly); lambda_power_iteration is "
"the legacy estimate and is unreliable on peripheral spectra"
),
"quantization": {
"method": "gap_aware_deduped_min_support",
"gap_factor": self.gap_factor,
"min_support": self.min_support,
"median_gap": round(self.quant["median_gap"], 6),
"threshold": round(self.quant["threshold"], 6),
"boundaries": self.boundaries,
"candidate_boundaries": self.quant["candidates"],
"suppressed_boundaries": self.quant["suppressed"],
"sparse_tail_cutoff": self.quant["sparse_tail_cutoff"],
},
"clusters": self.cluster_table(),
"collisions": self.collision_report(),
"entries": entries,
}
# ──────────────────────────────────────────────────────────────────────
# 278-row manifold cross-check
# ──────────────────────────────────────────────────────────────────────
def manifold_check(codebook: Codebook,
manifold_path: Path = MANIFOLD_LEAN) -> dict:
"""Run the pipeline over the full 278-row fixture corpus.
The manifold repeats equation ids (278 rows over 250 unique ids), so the
28 extra rows reuse matrices already in the codebook. After dedupe the
λ multiset is unchanged, so boundaries must match the 250-matrix
codebook exactly; this is reported rather than assumed.
"""
ids = parse_manifold_ids(manifold_path)
missing = sorted({e for e in ids if e not in codebook.profiles})
seen: Dict[Matrix, str] = {}
lambda_counts: Dict[float, int] = {}
for eid in ids:
if eid in codebook.profiles:
mat = codebook.matrices[eid]
if mat not in seen: # dedupe, matching the codebook build
seen[mat] = eid
lam = codebook.profiles[eid]["spectral_radius"]
lambda_counts[lam] = lambda_counts.get(lam, 0) + 1
quant = gap_quantize(lambda_counts, codebook.gap_factor, codebook.min_support)
return {
"rows": len(ids),
"unique_ids": len(set(ids)),
"extra_rows": len(ids) - len(set(ids)),
"ids_without_matrix": missing,
"distinct_matrices": len(seen),
"boundaries": quant["boundaries"],
"median_gap": round(quant["median_gap"], 6),
"boundaries_match_250": quant["boundaries"] == codebook.boundaries,
"clusters": len(quant["boundaries"]) + 1,
}
# ──────────────────────────────────────────────────────────────────────
# CLI
# ──────────────────────────────────────────────────────────────────────
def build_codebook(matrices_path: Path = MATRICES_LEAN,
gap_factor: float = GAP_FACTOR,
min_support: int = MIN_SUPPORT) -> Codebook:
return Codebook(parse_matrices_lean(matrices_path), gap_factor, min_support)
def main(argv: Optional[List[str]] = None) -> int:
ap = argparse.ArgumentParser(description="Gap-aware spectral codebook generator")
ap.add_argument("--matrices", type=Path, default=MATRICES_LEAN,
help="Matrices250.lean path")
ap.add_argument("--out", type=Path, default=DEFAULT_OUT,
help="Output codebook JSON (default data/spectral_codebook.json)")
ap.add_argument("--gap-factor", type=float, default=GAP_FACTOR,
help="Boundary threshold = factor × median gap (default 3)")
ap.add_argument("--min-support", type=int, default=MIN_SUPPORT,
help="Minimum distinct matrices per cluster (default 10)")
ap.add_argument("--check-manifold", action="store_true",
help="Also run over the 278-row RRC/Q16_16Manifold corpus")
ap.add_argument("--no-write", action="store_true",
help="Report only; do not write the JSON")
ap.add_argument("--sync-db", action="store_true",
help="DRY-RUN sync preview to ene.rrc_predictions on the "
"neon-64gb Postgres ($NEON_PG). Always a dry run from "
"this entry point; use python/spectral_codebook_db.py "
"--apply to actually insert.")
args = ap.parse_args(argv)
cb = build_codebook(args.matrices, args.gap_factor, args.min_support)
doc = cb.to_json()
col = doc["collisions"]
q = doc["quantization"]
print(f"Spectral codebook over {doc['matrix_count']} matrices "
f"({col['distinct_matrices']} distinct)")
print(f" median gap {q['median_gap']:.6f} × {args.gap_factor:g}"
f"threshold {q['threshold']:.6f}; min support {args.min_support} "
f"(candidates {len(q['candidate_boundaries'])}, "
f"kept {len(q['boundaries'])}, "
f"suppressed {len(q['suppressed_boundaries'])})")
print(f" boundaries: {q['boundaries']}")
print(f" sparse-tail cutoff: {q['sparse_tail_cutoff']}")
print("\n codeword ids distinct lambda range sparse-tail")
for row in doc["clusters"]:
print(f" {row['codeword']:<8} {row['count']:>4} {row['distinct_matrices']:>8}"
f" [{row['lambda_min']:.4f}, {row['lambda_max']:.4f}]"
f" {row['sparse_tail_members'] or ''}")
print(f"\n fingerprint uniqueness (of {col['corpus_size']} ids / "
f"{col['distinct_matrices']} distinct matrices):")
print(f" λ @4dp : {col['unique_lambda_4dp']} unique values, "
f"{col['identified_by_lambda_4dp']} ids uniquely identified, "
f"{col['lambda_collision_groups']} collision groups "
f"({col['lambda_collision_members']} ids)")
print(f" char-poly : {col['unique_charpoly']} unique fingerprints, "
f"{col['identified_by_charpoly']} ids uniquely identified, "
f"{col['charpoly_collision_groups']} collision groups "
f"({col['charpoly_collision_members']} ids)")
print(f" exact duplicate matrices: {col['duplicate_matrix_groups']} groups "
f"({col['duplicate_matrix_members']} ids)")
print(f" cospectral non-identical groups: "
f"{col['cospectral_nonidentical_groups']}")
print(f" power-iteration artifacts (|λ_pi ρ| > 1e-3): "
f"{col['power_iteration_artifact_count']}")
if args.check_manifold:
mc = manifold_check(cb)
doc["manifold_278"] = mc
print(f"\n 278-row manifold: {mc['rows']} rows / {mc['unique_ids']} unique ids "
f"({mc['extra_rows']} duplicate rows, "
f"{mc['distinct_matrices']} distinct matrices)")
print(f" boundaries match 250-matrix codebook: {mc['boundaries_match_250']} "
f"({mc['clusters']} clusters)")
if args.sync_db:
import spectral_codebook_db
print("\n DB sync (dry run):")
spectral_codebook_db.sync_db(codebook=cb) # never applies from here
if not args.no_write:
args.out.parent.mkdir(parents=True, exist_ok=True)
args.out.write_text(json.dumps(doc, indent=2) + "\n")
print(f"\nWrote {args.out}")
return 0
if __name__ == "__main__":
sys.exit(main())