Junhyun Lim avatar

Junhyun Lim

Community

@ensj · Santa Clara

5Followers
|
24Public Repos
|
12Published Skills

Junhyun Lim. Jimmy. Ensj. I'm a student studying computer science and mathematics!

Skills Distribution
DomainAI Models & ...LLM Evaluation & B.. (40%)Model Cost Optimiz.. (25%)Skill Composition .. (20%)Research & Text Cl.. (15%)

Agent Skills by Junhyun Lim

Showing 12 vetted skills indexed across 1 GitHub repositories.

ensjensj

classify-then-schema

Classify input text and generate a JSON Schema for a structured response.

Community
Intermediate
ensjensj

research-orchestration

Orchestrates a five-step pipeline that plans, searches, verifies, and synthesizes cited research briefs.

Community
Advanced
ensjensj

research-lean-linear

Generates cited research briefs by planning queries, searching the web, and distilling sources.

Community
Intermediate
ensjensj

compare-compositions

Compares composition methods on a quality-cost frontier and writes composition-profile.json.

Community
Advanced
ensjensj

eval-sweep

Runs adaptive variant sweeps on atomic skills with statistical verdicts and provenance-checked scoring.

Community
Advanced
ensjensj

run-composition

Runs typed skill compositions end-to-end and measures predicted versus actual performance deltas.

Community
Advanced
ensjensj

eval-writing-styles

Sweeps prompt writing styles over shared eval cases and reports a quality-versus-token Pareto frontier.

Community
Advanced
ensjensj

assemble-tier

Assembles the cheapest model-tier assignment for a composition that ties the all-opus baseline.

Community
Advanced
ensjensj

package-composition

Packages a measured prompt composition into a portable pure-prose SKILL.md with frozen prompts and evals.

Community
Intermediate
ensjensj

model-ladder

Finds the cheapest model tier where an atomic skill produces a stable winner.

Community
Intermediate
ensjensj

tier-ladder

Certifies the cheapest model tier that ties the top tier for an atomic skill.

Community
Advanced
ensjensj

test-packaged-skills

Validates packaged composition skills structurally and runs live end-to-end dispatch tests.

Community
Advanced

Frequently Asked Questions About Junhyun Lim

FAQPage Schema
What tasks can I accomplish with ensj's skill-eval-framework skills?▼

You can run variant eval sweeps, compare composition topologies on a quality-cost frontier, test writing styles, find the cheapest viable model tier, assemble cost-optimized model-heterogeneous compositions, and package or end-to-end test compositions as portable SKILL.md files.

Who should use these skills?▼

Engineers and researchers building or benchmarking LLM skills who need rigorous, seed-driven evaluation of prompt variants, model tiers, and composition topologies. It suits anyone optimizing the quality-versus-cost tradeoff of skill pipelines before shipping them.

How do the evaluation and tiering skills work in practice?▼

Skills invoke frozen pattern scripts like patterns/eval-sweep.js and patterns/tier-ladder.js over shared cases and seeds. Results are scored against rubrics, and outputs such as composition-profile.json, tier-profile, and model-profile.json are written for downstream decisions.

What are the prerequisites for using these skills?▼

You need the skill-eval-framework environment with its frozen patterns scripts, defined eval cases, and access to the haiku, sonnet, and opus model tiers. Compositions must have frozen winning prompts before packaging or tier assembly.

How does the framework control evaluation cost?▼

It uses adaptive budget-driven seed rounds that stop once a precision-width rule decides an outcome, plus tier ladders and cheapest-tier assembly that downgrade steps only when they tie the all-opus baseline, minimizing spend without sacrificing measured quality.