• Problem: Replaying Gemini conversation history through the OpenAI adapter failed when a turn contained executable code or execution output.
• My contribution: Converted both part types to labeled, fenced text in the Chat Completions and Responses request paths, preserving their order alongside ordinary text and images.
• Validation: Added request-payload regressions for both APIs, including empty code, mixed media and replayed reasoning. Chat Completions tests · Responses tests.
• Outcome: Merged November 6, 2026 · #1956. Request conversion preserves the code and its output as context. This does not execute the code or claim live-provider validation.

• Problem: A raw prefix check let paths such as /api/../admin satisfy an /api allowlist even though the HTTP client requested /admin.
• My contribution: Required both raw and percent-decoded paths to pass the allowlist after dot-segment normalization, preserving empty segments and matching httpx's treatment of terminal dot segments.
• Validation: Added escaping-path and allowed-path cases, comparisons against httpx's wire path, and runner tests proving rejected targets never invoke authentication or send a request. Validator tests · Runner tests.
• Outcome: Merged November 2, 2026 · #14668. The tested traversal and prefix-boundary cases are rejected before outbound work, while valid paths remain accepted.

• Problem: Recreating a deleted asset link could be rejected as a duplicate while DynamoDB's secondary index still returned the deleted row.
• My contribution: Verified candidate index hits against the base table with strongly consistent reads before applying duplicate and reverse-link checks.
• Validation: Added eight regression cases covering two relationship types, both directions, and stale versus present base-table records. Regression tests. The project review reports 78 passing tests and 20 successful live smoke-test cycles; the original timing failure was reproduced in the regression test, not live.
• Outcome: Merged into development November 2, 2026 · #856. Deleted rows no longer block recreation through stale index hits, while checks for existing duplicate and reverse links remain.

• Problem: GraphQL arguments named _alias or _projection collided with generated client parameters, producing Kotlin that failed to compile.
• My contribution: Preserved schema argument names and renamed only colliding generated parameters, leaving non-colliding signatures unchanged. Added tests that compile client queries using those arguments.
• Validation: Compilation tests. The maintainer's follow-up retained my commit and added KotlinPoet name allocation, serializer-shadowing fixes and broader runtime coverage.
• Outcome: Merged November 3, 2026 · #997. Colliding schema arguments can be used by the generated client without duplicate parameter declarations.

• Problem: A block cursor placed after the last decorator could be appended beyond a custom DOM slot's trailing decoration, outside the editor-managed range.
• My contribution: Inserted the cursor before the slot boundary when attached, with an append fallback when the boundary is absent or removed.
• Validation: Added regressions for correct placement before the decoration and for a detached decoration that must not throw. DOM-slot tests.
• Outcome: Merged November 1, 2026 · #9707. Custom slot layouts retain the expected cursor position without breaking the detached-boundary case.

Conceptual patterns across separate projects; arrows do not assert one integrated deployment.

flowchart LR
  subgraph Client
    B[Browser<br/>Next.js · React]
  end
  subgraph Runtime
    WS[WebSocket agent server<br/>seq ordering · RESUME replay]
    API[FastAPI / Express gateway<br/>rate limits · RLS · circuit breaker]
  end
  subgraph Models_Tools_Data["Models · Tools · Data"]
    OR[OpenRouter / Workers AI<br/>project-specific routing]
    MCP[MCP servers · tool calling]
    VAD[WebRTC VAD · speech]
    RAG[BM25 / TF-IDF retrieval<br/>eval gates]
  end
  subgraph Ops
    CI[GitHub Actions CI<br/>F1 gates · offline eval]
    DEP[Docker · Cloudflare · GitHub Pages]
  end
  B <--> WS
  B --> API
  WS --> MCP
  API --> OR
  API --> RAG
  B --> VAD
  MCP --> OR
  CI --> DEP

The card lists tools I use or explore. The manifests below verify declared dependencies in these repos, rather than installed versions or live deployment.

Engineering principles

• Measure everything; ship the gate with the number
• Local-first whenever possible; CI must not depend on a live API
• Reliability over novelty — an agent with guardrails beats a flashier one without
• AI should augment, not obscure, the system
• Developer experience matters; simple systems scale better

Details: INTERVIEW_NOTES.md

Writing

• Technical writings RSS

Trajectory

Contribution graph · yearly snapshot JSON