ARKHĒ

SELECTED WORK / 2026

Evidence that improves the work.

I investigate where a result loses meaning: a compiler skips work, a test runner misses a test, or an evaluation hides uncertainty. The record below connects each contribution to the problem it addresses.

NVIDIA SkillEvaluatorAI evaluation
Merged · 25 Aug 2026

What an aggregate score leaves out.

Added uncertainty estimates and paired-outcome reporting so readers can see both the limits of a run and which cases improved or regressed.

Read the evaluation case →
xDSLCompiler correctness
6 fixes merged · Sep–Oct 2026

Four iterations became two.

Six accepted fixes preserve floating-point and loop behavior, execute dynamic arrays correctly, and reject unsupported LLVM metadata explicitly.

Read the compiler case →
PlasmaControl / DESCScientific test reliability
Merged · 28 Sep 2026

A test that measures the intended geometry.

A geometry test let the optimizer move unrelated physical parameters, producing a warning that failed CI. The repair fixes those irrelevant degrees of freedom while leaving the geometry free. Review strengthened the diagnosis from warning handling to an ill-posed test setup.

Inspect the merged test repair →

Checked against public GitHub records on 8 October 2026: eight authored PRs merged across xDSL, NVIDIA SkillEvaluator and DESC; eight more open. Maintainer acceptance is specific to the merged patch.

OPEN PROPOSALS

Awaiting upstream review

Eight authored PRs, checked 8 October 2026. These describe proposed contributions and their current limits.

pytest · OPEN #15144

Make fixture dependencies inspectable

Proposes a public snapshot API for the dependency graph, including dynamic dependencies and their origins, so tools can explain which fixtures a test needs.

No review yet; overlaps another upstream proposal and awaits design and merge-order guidance.

Swift Foundation · OPEN #2281

Make JSON error paths name the actual key

Decodes escaped JSON keys when constructing a coding path: a key written as n\u0061me should be reported as name. Keeps parsing deferred and preserves the existing API.

No review yet; proposed behavior and reported local tests are not upstream acceptance.

Google DeepMind / TORAX · OPEN #2521

Keep a restarted simulation’s configuration traceable

Preserves the resumed run’s configuration and records the previous one separately in stitched output. This makes the result’s provenance inspectable without changing time concatenation.

No review yet; full upstream and Linux validation are not claimed from the local checks.

Apple / SwiftNIO · OPEN #3752

Observe a large write while it is still in progress

Proposes opt-in events for bytes accepted by the local OS before a write promise completes, without fragmenting the application’s message. Local acceptance is explicitly separate from peer receipt.

No review yet; API design and broader platform coverage await upstream feedback.

pytest-xdist · OPEN #1383

Run every collected test, including duplicates

Uses collection positions instead of collapsing identical node IDs in grouped schedulers. Two selected copies of a test should both run, including after worker replacement.

No review yet. Addresses a silent missed-test case; an unrelated baseline shutdown failure remains out of scope.

Kubernetes · OPEN #142055

Preserve successive policy changes

Keeps equivalent object-version snapshots synchronized so a later mutating policy does not overwrite an earlier policy’s disjoint change.

Bot triage only; awaiting a maintainer’s test authorization and review. No upstream acceptance.

OpenAI / monitorability-evals · OPEN #57

Correct the reference before judging an answer

Removes an extra factor of three from one magnetic-dipole reference answer. Derivation and controls make the small data change auditable.

No review yet. No measured effect on internal grading or published scores is established.

xAI / x-algorithm · OPEN #94

Distinguish missing data from an affirmative update

Preserves existing reply and retweet graph identifiers when a hydration lookup misses, while retaining the behavior of real updates and the negative cache.

No review yet. The public export lacks the relevant build manifest, so the affected test suite could not be run.

REVIEW & DISCUSSION

Contribution through scrutiny

INSPECT AI · PR CLOSED, NOT MERGED

Test the boundary between live media and saved metadata

I contributed validation and test suggestions to another author’s PR. After review exposed an incorrect assertion in my first tests, I corrected it and checked that live requests retained their media while saved score metadata remained media-free. The author incorporated and credited that coverage.

The PR closed without merge on 15 September: maintainers deferred the broader ordering and provenance work. No request to me remains pending. Incorporated review feedback is not a merged implementation.

NVIDIA SKILLEVALUATOR · ISSUE OPEN

Separate compatibility from registry policy

Source-based analysis showed that an author-field validator rejected existing skill metadata. The discussion proposes advisory external validation while retaining a stricter registry profile and a defined stable-ID contract.

A maintainer agreed with the direction and requested further review before implementation. This is a policy/design contribution, not an implemented or merged fix.

Authored patches, open proposals and review contributions are counted separately. I use AI tools in this work; the linked records describe validation and review. These contributions do not imply employment, client engagements or organizational endorsement.

One question worth resolving.

Independent reliability reviews for teams shipping AI-enabled software. Start with a failure, an uncertain result, or a release decision.

Discuss a scoped review