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shin4141/README.md

Shin

Independent researcher and builder working on AI systems, boundary integrity, and Decision-OS.

24 direct upstream merges across 20 independent public repositories.

These are public OSS contributions, not client engagements or evidence of paid commercial conversion.

I focus on consequential state transitions — places where a system says something is complete, settled, authorized, recorded, cancelled, or recovered, but the underlying state does not fully support that claim.

I don’t just fix the broken point. I repair the transition so the system can move forward without carrying the same failure into its next state.

Typical boundaries: retry, rollback, replay, partial progress, authority changes, durable state, payment / settlement state, and AI-agent handoff.

Public upstream acceptance — technical repair evidence

Each link exposes the failure boundary, bounded repair, and third-party upstream acceptance:

  • Apple / swift-openapi-generator #939 — developer tooling / deterministic failure handling. Distinct OpenAPI components could collapse to the same generated Swift type name and crash recursive-type boxing → detect collisions before boxing, emit a deterministic diagnostic, and cover the regression → maintainer feedback was addressed, then the patch was approved and merged.
  • Sony / nmos-cpp #520 — protocol / validation boundary. Non-six-octet interface IDs could make IS-04 Node resources schema-invalid → apply repository-native regex validation, the existing schema-valid fallback, and expanded malformed-input tests → maintainer-requested changes were incorporated and the patch was merged.
  • Vercel / workflow #3575 — atomic state / recovery. A step row could commit without its replay event and wedge later replay → write both in one transaction while preserving recovery for existing orphan rows → the upstream reviewer approved and merged the patch.
  • Adyen / adyen-node-api-library #1760 — payment infrastructure / public API contract. The public Session Authentication API lacked its generated models in the public Types namespace → add the missing export and test it through the package entrypoint → a human reviewer thanked, approved, and merged the patch.
  • Dynawo / DyCoV #385 — power-grid compliance tooling / explicit correctness acceptance. A missing parameter set produced an empty XPath result that bypassed absence handling → treat the empty result as missing and add regression coverage → the maintainer stated “the change is correct,” extended Shin’s branch with the adjacent fix and tests, verified 778 passed and ruff clean, and merged.

Verified merge portfolio

All 24 verified merges are preserved in the canonical detailed ledger:

Open the full verified merge portfolio →

Boundary coverage: STATE / TRANSITION ×6 · DATA / CONTEXT ×5 · CONFIG / POLICY ×5 · RETRY / RECOVERY ×2 · INSTALL / COMPLETION ×2 · TRANSPORT / PARTIAL PROGRESS ×1 · NUMERIC / REPRESENTATION ×3

These are public OSS contributions, not client engagements or evidence of paid commercial conversion.

Current work

One bounded boundary first

You do not need to rely on me for every issue. Start with one consequential boundary. I aim to leave not only the repair, but also the conditions and checks that help your team or AI recognize the same class of failure next time.

If that proves useful, bring me back for the next consequential boundary.

Private boundary review / repair / research collaboration: siriusa.paper@gmail.com

Pinned Loading

  1. decision-os-paper decision-os-paper Public

    Public gateway for the Decision-OS series (V4–V9). Canonical artifacts on Zenodo (DOI).

    4 4

  2. decision-os-v13-loopkit decision-os-v13-loopkit Public

    V12→V13 LoopKit: turns completion records into governed next-loop decisions using GO / HOLD / CAP / BLOCK.

    Python 35 19

  3. agents-md-compactor agents-md-compactor Public

    Route conditional AGENTS.md guidance into reconnectable guides while keeping the active file smaller, local, and source-traceable.

    JavaScript 2 1

  4. value-locked-repository-recovery-public value-locked-repository-recovery-public Public

    Public front for Value-Locked Repository Recovery — evidence-bounded boundary audits for open-source and AI-assisted systems.

    1

  5. output-surface-integrity output-surface-integrity Public

    Restart long-running human–AI work with less rereading by preserving the compact operational state needed to continue.

    6

  6. pain-timing-map-public pain-timing-map-public Public

    Manual map for turning weak AI-operation signals and small pains into evidence candidates, timing hypotheses, and action gates.