Morgan Carr

AI/LLM & TypeScript engineer — I build LLM integrations, MCP tooling, and static-analysis / developer tools, and I ship focused, tested fixes upstream in the libraries I use.

Night-time coder. My work lands as small, well-tested pull requests in real projects — 40+ merged into external open-source repos, including the official OpenAI Node SDK, promptfoo, txtai, kysely, react-jsonschema-form, ast-grep, protobuf.js, and meriyah.

Focus areas

• AI / LLM — OpenAI/Anthropic SDKs, structured outputs, streaming, tool/function calling, RAG, and MCP (Model Context Protocol) servers
• TypeScript / Node — SDK & API work, type-level correctness, parsers/ASTs
• Static analysis & tooling — ESLint plugins, linting, package analysis, and the edge-case fixes that get merged into major libraries
• Backend reliability — REST APIs, Postgres/Prisma, webhooks, idempotency

Projects

• ast-lens-mcp — MCP server for AST-based code intelligence on TypeScript/JavaScript codebases (npm).
• mcp-source-lint — static checks for MCP server source that catch stdio corruption and missing handler input schemas.
• agent-bisect — git-bisect for agent runs: deterministically localizes the first breaking step in an agent transcript, and abstains when it can't.
• chrome-review — TypeScript static analyzer for Chrome MV3 extensions.

Recent upstream contributions

• openai/openai-node #1985 · #1987 — Zod v4-mini schema support + stream rehydration in the official OpenAI SDK
• promptfoo/promptfoo #9994 — RAG grader variable precedence
• neuml/txtai #1130 — new dense ANN index backend
• kysely-org/kysely #1919 — Postgres session-level advisory locking for exclusive migrations
• cline/cline #12023 — crash fix in structured run-command history export
• rjsf-team/react-jsonschema-form #5152 — option-description rendering across 12 widgets
• meriyah/meriyah #576 — parser fix for class fields named get/set
• protobufjs/protobuf.js #2358 — parser hardening against malformed input
• ast-grep/ast-grep #2787 — bounded-channel backpressure

…plus merged fixes across the ESLint plugin ecosystem (eslint-plugin-n, -regexp, -yml, -playwright, -import-x, eslint-stylistic, and more).

Tech

TypeScript · Node.js · Python · React/Remix · Postgres/Prisma · Vitest · Playwright · MCP · OpenAI/Anthropic SDKs