fix: use correct argument during error message interpolation and update descriptions

[Planeshifter]

Follow-up fixes for commits merged to develop between 2026-06-23 22:06 PT and 2026-06-24 04:09 PT (efdecd0..8bf91614, 26 first-parent merges).

Description

This pull request applies three high-signal follow-up corrections surfaced by a four-agent review (two style audits + two bug scans) of the last 24 hours of commits to develop.

ndarray/matrix/ctor

• ndarray/matrix/ctor/lib/main.js (dc9a2a7): the ArrayBuffer overload's TypeError for an invalid shape argument (arg2) erroneously formatted arg3 (dtype) into the Value: %s slot; replaced arg3 with arg2 in the format() call.

blas/ext/base/slogspace

• blas/ext/base/slogspace/lib/ndarray.native.js (01e7714): JSDoc summary appended using alternative indexing semantics, a copy-paste artifact absent from the parallel dlogspace native wrapper and slogspace's own ndarray.js; removed the trailing phrase to match sibling descriptions.

blas/ext/base/ndarray

• lib/node_modules/@stdlib/blas/ext/base/ndarray/README.md (1d854da): the zxsy table-of-contents entry read "subtract elements" while all four sibling xsy entries read "subtract the elements"; inserted the missing definite article.

Related Issues

This pull request has no related issues.

Questions

No.

Other

Validation

Reviewer pool: two sonnet style-compliance auditors (split across new packages vs. modifications to existing packages) and two opus bug scanners. Each was briefed with a per-commit summary of the window so deliberate choices would not be flagged.

What was checked:

• stdlib code style guide compliance (docs/style-guides/javascript, docs/style-guides/text) against established reference packages of similar shape (e.g. dnanasum for the new BLAS-ext additions, ndarray/vector/ctor for ndarray/matrix/ctor, is-floating-point-data-type for the new ndarray/base/assert packages).
• Obvious runtime bugs visible in the diff alone (off-by-one, swapped arguments, copy-paste residue, mismatched JSDoc/signature).
• Introduced security/logic problems (Napi error-path checks, contract violations, type-signature/runtime mismatches).
• Documentation typos in user-visible identifiers, descriptions, and copy.

What was deliberately excluded:

• Subjective preferences and "consider…" suggestions.
• Issues that would require touching code outside the diff window to validate or to fix.
• Single-reviewer findings that could not be independently re-verified by re-reading the diff.

The shape-error fix was independently surfaced by three of four reviewers; both docs fixes were single-reviewer findings re-verified directly against the diff before inclusion.

Checklist

• Read, understood, and followed the contributing guidelines.

AI Assistance

• Yes
• No

If you answered "yes" above, how did you use AI assistance?

• Code generation (e.g., when writing an implementation or fixing a bug)
• Test/benchmark generation
• Documentation (including examples)
• Research and understanding

Disclosure

This PR was authored by Claude Code running as a scheduled review routine: four parallel reviewer agents scanned the last 24 hours of develop, findings were cross-validated, three were retained, and the fixes (one line each) were applied in this branch. A human maintainer should audit before promoting from draft.

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Generated by Claude Code

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
blas/ext/base/ndarray	$\\color{red}14498/15623$ $\\color{green}+92.80\\%$	$\\color{red}245/251$ $\\color{green}+97.61\\%$	$\\color{red}0/125$ $\\color{green}+0.00\\%$	$\\color{red}14498/15623$ $\\color{green}+92.80\\%$
blas/ext/base/slogspace	$\\color{green}431/431$ $\\color{green}+100.00\\%$	$\\color{green}24/24$ $\\color{green}+100.00\\%$	$\\color{green}4/4$ $\\color{green}+100.00\\%$	$\\color{green}431/431$ $\\color{green}+100.00\\%$
ndarray/matrix/ctor	$\\color{green}1296/1296$ $\\color{green}+100.00\\%$	$\\color{green}255/255$ $\\color{green}+100.00\\%$	$\\color{green}7/7$ $\\color{green}+100.00\\%$	$\\color{green}1296/1296$ $\\color{green}+100.00\\%$

The above coverage report was generated for the changes in this PR.