feat: add recsys-pipeline-architect skill#1163
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Adds a skill for designing composable recommendation, ranking, and feed pipelines using the six-stage Source→Hydrator→Filter→Scorer→Selector→ SideEffect framework popularized by xAI open-sourced X For You algorithm. Independent MIT reimplementation; surfaces multi-action vs single-score, candidate isolation vs joint, and online vs offline batch trade-offs explicitly.
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Adds a new skill: recsys-pipeline-architect.
A vendor-agnostic Agent Skill (agentskills.io standard) for designing composable recommendation, ranking, and feed pipelines using the six-stage Source → Hydrator → Filter → Scorer → Selector → SideEffect framework popularized by xAI's open-sourced For You algorithm (Apache 2.0; this skill is MIT and is an independent reimplementation of the pattern).
Activation
Triggers on any "top K items for (user, context)" problem: content feeds, search ranking, RAG retrieval rerankers, task prioritizers, notification triage, ad selection. The skill walks the agent through eight clarifying steps and emits a runnable scaffold in the user's stack.
Why a vendor-agnostic skill belongs here
Like the existing
find-skillsskill, this one is platform-neutral — the SKILL.md is consumed identically by Claude Code, Codex, Cursor, Gemini CLI, OpenCode, Windsurf, and the other agents thatnpx skills addsupports.Upstream
This is a single-file adapter for the upstream repository: https://github.com/mturac/recsys-pipeline-architect (v0.1.0, MIT). Upstream ships 5 load-on-demand reference docs (interfaces in 4 languages, multi-action scoring, candidate isolation, filter cookbook with 12 patterns, scorer cookbook) and 3 runnable example scaffolds (Strapi v5/TS/Jest, Go with generics, Python/FastAPI/pytest — every one green: 9/9 tests passing total).
Cross-platform install via skills.sh:
npx skills add mturac/recsys-pipeline-architect.