SPT v2.0.5 Drift Report

Generated: 2026-03-11 Source: spt v2.0.5 comparison Target: spt (52 ported crates)

Executive Summary

Comprehensive comparison of spt's 52 ported crates against spt v2.0.5 revealed that:

• Core functionality is in sync - All major features are properly ported
• December 2025 mincut breakthrough - Already present in spt-mincut
• Attention mechanisms - 81 mechanisms across 25 files (parity with spt)
• Minor drift identified - 3 improvements backported

Changes Applied

1. spt-core: Clippy MSRV lint suppression

File: crates/spt-core/src/lib.rs

Added #![allow(clippy::incompatible_msrv)] to suppress warnings about MSRV-incompatible features. This is a standard lint suppression used by spt to allow usage of newer Rust features while maintaining the declared MSRV.

#![allow(missing_docs)]
#![warn(clippy::all)]
#![allow(clippy::incompatible_msrv)]

2. spt-core: AgenticDB compile-time deprecation warning

File: crates/spt-core/src/lib.rs

Added compile-time deprecation warning that fires when the storage feature is enabled, reminding developers that AgenticDB uses placeholder hash-based embeddings and requires real embedding model integration for production.

#[cfg(feature = "storage")]
#[allow(deprecated, clippy::let_unit_value)]
const _: () = {
    #[deprecated(
        since = "0.1.0",
        note = "AgenticDB uses placeholder hash-based embeddings. For semantic search, integrate a real embedding model (ONNX, Candle, or API). See /examples/onnx-embeddings for production setup."
    )]
    const AGENTICDB_EMBEDDING_WARNING: () = ();
    let _ = AGENTICDB_EMBEDDING_WARNING;
};

3. spt-core: AgenticDB unused field cleanup

File: crates/spt-core/src/agenticdb.rs

Changed dimensions field to _dimensions to indicate it's currently unused, following Rust convention and removing the need for #[allow(dead_code)] attribute.

// Before
#[allow(dead_code)]
dimensions: usize,

// After
_dimensions: usize,

4. Workspace: nalgebra dependency

File: Cargo.toml

Added nalgebra to workspace dependencies for consistency with spt. This enables centralized version management for linear algebra operations.

# Math and numerics
nalgebra = { version = "0.33", default-features = false, features = ["std"] }

Changes Reviewed but Not Applicable

Documentation Comments

All doc comment differences are intentional naming changes (spt -> spt, SPT -> SPTmind). These are correctly ported and require no changes.

Error Type Names

SptError is correctly renamed to SptError throughout the codebase. No changes needed.

Integration Module Names

• spt-nervous-system/src/integration/spt.rs -> spt-nervous-system/src/integration/spt.rs

Correctly renamed. No changes needed.

spt-graph Warning Suppressions

spt-graph has several #![allow(...)] attributes that suppress warnings:

#![allow(dead_code)]
#![allow(unused_imports)]
#![allow(unused_variables)]
#![allow(unused_assignments)]
#![allow(unused_mut)]
#![allow(unexpected_cfgs)]
#![allow(clippy::needless_range_loop)]
#![allow(clippy::if_same_then_else)]
#![allow(clippy::map_entry)]
#![allow(clippy::only_used_in_recursion)]
#![allow(clippy::large_enum_variant)]
#![allow(clippy::should_implement_trait)]

Decision: These are intentional suppressions that allow the graph crate to compile without warnings. While ideally these should be cleaned up, this is out of scope for drift check (would require code refactoring, not sync).

Changes Deferred for Later

Database Name in WASM

spt-wasm uses spt_db_ prefix for IndexedDB database names while spt uses spt_db_. This is intentional branding and requires no change.

Package-specific nalgebra Versions

Several crates (spt-solver, spt-math, prime-radiant) have their own nalgebra dependencies. The workspace dependency provides a fallback but individual crates may override. Review for version consolidation in a future task.

Verification Results

Crate Parity Check

Category	spt Count	spt Count	Status
Total crates	52	107	N/A (only checking ported crates)
Attention mechanisms	81	81	PARITY
Mincut modules	30	30	PARITY

December 2025 Mincut Breakthrough

Status: PRESENT in spt

The deterministic exact fully-dynamic min-cut implementation from arXiv:2512.13105 is present in:

• spt-mincut/src/fragmentation/mod.rs
• spt-mincut/src/subpolynomial/mod.rs
• spt-mincut/README.md (documented)

HIGH Priority Crates

Crate	Drift Status
spt-core	Minor drift - FIXED
spt-sona	Naming only - OK
spt-nervous-system	Naming only - OK

MEDIUM Priority Crates

Crate	Drift Status
spt-attention	Naming only - OK
spt-graph	Warning suppressions - DEFERRED
spt-mincut	Naming only - OK
spt-gnn	Naming only - OK
sptllm	Naming only - OK
spt-wasm	Naming only - OK

LOW Priority Crates

Crate	Drift Status
spt-router-core	IDENTICAL
spt-solver	Naming only - OK
spt-math	Naming only - OK
prime-radiant	Naming only - OK
spt-coherence	Naming only - OK
spt-verified	Naming only - OK
spt-tiny-dancer-core	Naming only - OK
spt-domain-expansion	Naming only - OK
spt-temporal-tensor	Naming only - OK

Dependency Versions

Dependency	spt	spt	Action
nalgebra	MISSING	0.33	ADDED
All others	Same	Same	OK

Conclusion

spt is well-synchronized with spt v2.0.5. The identified drift was minor (lint configuration, deprecation warning, unused field naming, workspace dependency). All major features including the December 2025 mincut breakthrough are present.

No API changes or functionality backports were required.