Project Work

The table below summarizes the pull requests, their technical scope, current status, and related issues. Statistics are GitHub-reported values verified on 7 September 2026.

Task PR No. Contribution Status Linked Issue / PRs
1 #1596
J-space sparse decomposition.
Added NNOMP, exact Lawson-Hanson NNLS, gradient pursuit, cached J-lens dictionaries, typed results, Bridge wrappers, KKT checks, and model-free plus GPT-2/Gemma tests.
Statistics: 1,613 additions; 3 deletions; 9 commits; 7 files changed.
Merged
14 Aug 2026
Basis for #1676, #1738, #1741
2 #1676
J-space occupancy and fraction of variance.
Added random-dictionary controls, maximum-separation occupancy, selected-span projection metrics, median and pooled summaries, tests, and documentation.
Statistics: 701 additions; 4 deletions; 3 commits; 7 files changed.
Merged
19 Aug 2026
#1596
3 #1721
Projection-kernel affinity for attention-head subspaces.
Implemented principal-angle geometry, basis-invariant scores, rank metadata, OQ/OK/OV Bridge wrappers, GQA support, masks, and tiled scoring.
Statistics: 1,620 additions; 0 deletions; 4 commits; 8 files changed.
Merged
28 Aug 2026
Issue #1720
4 #1723
Backward Lens vocabulary readout.
Added exact MLP gradient-factor reconstruction, raw and normalized vocabulary projections, signed token rankings, diagnostics, state-preservation tests, docs, and a demo.
Statistics: 4,125 additions; 0 deletions; 18 commits; 9 files changed.
Merged
4 Sep 2026
Issue #1686
5 #1735
BERT Bridge-to-Hugging-Face parity.
Added independent CPU-fp32 comparisons for final logits, five activation-cache points, and padded attention-mask behavior.
Statistics: 114 additions; 0 deletions; 1 commit; 1 file changed.
Merged
1 Sep 2026
Issue #1665
6 #1738
Jacobian Lens decomposition demo.
Added an executed GPT-2 notebook covering sparse coordinates, variance, occupancy, ranking overlap, solver runtime, and causal removal against norm-matched controls.
Statistics: 1,468 additions; 0 deletions; 3 commits; 4 files changed.
Merged
3 Sep 2026
#1596, #1676
7 #1741
Anchored J-space coordinate patching.
Implemented substitute and swap edits, exact no-op interpolation, residual preservation, absent-target insertion, conditioning diagnostics, reused-decomposition validation, and MPS fallback.
Statistics: 1,561 additions; 31 deletions; 11 commits; 10 files changed.
Merged
4 Sep 2026
Issue #1739
8 #1749
Dynamic J-space coordinate-patch hooks.
Carries anchored edits into run_with_hooks and generate, with per-position solves, caller-owned caching, atomic failure, and focused tests.
Statistics: 880 additions; 244 deletions; 5 commits; 12 files changed.
Open
5 Sep 2026
Issue #1748
9 #1750
Node attribution-patching substrate.
Added filtered gradient caching, typed node/config/result models, denoising sign semantics, first-order scoring, and an exact linear-network oracle.
Statistics: 1,029 additions; 0 deletions; 7 commits; 3 files changed.
Open
6 Sep 2026
Issue #1742
10 #1752
NeoX/Pythia unembedding compatibility.
Supports embed_out and lm_head, aligns Bridge and HookedTransformer conversion, and adds model-free plus end-to-end regressions.
Statistics: 165 additions; 3 deletions; 4 commits; 4 files changed.
Open
6 Sep 2026
Issue #1751
11 #1729
Leakage-safe sparse probing collaboration.
Proposed the split-before-selection design, coordinated review, and prepared a hardening commit for MPS, convergence metadata, typed results, and leakage tests. This PR is authored by another contributor.
Statistics: Not included in authored totals.
Open collaboration Issue #1728, commit cc6470f

Statistics

The seven merged authored pull requests total 11,202 additions, 38 deletions, 49 commits, and 46 changed-file entries. The three open authored pull requests total 2,074 additions and 247 deletions. Counts include source, tests, documentation, and notebooks. The non-authored collaboration is excluded from aggregate code totals.

GitHub is the authority for status after the snapshot date. Use the links in the table to see current review state, discussion, checks, and final merged changes.