prompt-engineering plugins

ShaheerKhawaja/ProductionOS

Plugin Claude Code

AI engineering OS for Claude Code and Codex — 80 agents, 41 commands, 18 hooks.

utk2103/Prompt-Studio

Plugin Claude Code

Prompt engineering workbench with a Lean persona layer that cuts LLM output size, cost, and latency. Injects the Lean ruleset every session via SessionStart + SubagentStart hooks.

IchenDEV/prompt-optimizer-plugins

Plugin Claude Code

Clarify and optimize prompts for GPT-5.6, Claude, Gemini, Kimi, GLM, and DeepSeek-V4.

owenob1/prompt-improver

Plugin Claude Code

Turn vague agent prompts into precise, verifiable XML specs — then execute or plan. Headless multi-CLI generator. Use when the user says improve prompt, plan carefully, or structure a vague coding request.

ishandutta2007/claude-skills-by-karpathy

Plugin Claude Code

Premium Claude Skills based on Karpathy's guidelines to reduce common LLM coding mistakes.

justinjdev/fellowship

Plugin Claude Code

Multi-quest orchestrator for Claude Code. Coordinates parallel quests via agent teams, with structured research-plan-implement lifecycles and isolation via worktrees.

baizhiyuan/finding-unknowns-skill

Plugin Claude Code

Surface your unknowns (unknown unknowns / unknown knowns) before, during, and after implementation — eight lightweight techniques, Cartographer mode (a quadrant-coverage-gated, regret-weighted interview backed by a lifecycle-persistent unknowns ledger), and four companion agents: blindspot-scout, prototype-smith…

Miaoge-Ge/coding-agent-skills

Plugin Claude Code

Algorithmic problem solving, complexity analysis, and optimization for LeetCode/Codeforces/AtCoder.

Miaoge-Ge/coding-agent-skills

Plugin Claude Code

Model architecture design, training strategies, debugging, and paper interpretation (PyTorch/TensorFlow).

JackyYang258/agent-teacher

Plugin Claude Code

Concept-teaching skill for Claude Code.

baldaworks/promptkitty

Plugin Claude Code

Assemble PromptKit prompts and author provider-native agent instructions.

baek-labs/hames

Plugin Claude Code

Hames-aware fork of claude-md-management. Audits and revises CLAUDE.md files while honoring the v5.5 kernel + .cursor/rules/ module separation, workspace boundaries, defense-line signatures, and isolated domains.

isabela-valonni/prompt-evaluator

Plugin Claude Code

A quiet prompting coach. Scores how you ask, names one thing to sharpen, and remembers your recurring patterns across sessions so the feedback compounds. Works for anyone using AI — not tied to any one domain.

hardness1020/awesome-prompt-skill

Plugin Claude Code

Expert guidance for designing, optimizing, evaluating, and securing prompts and system prompt architectures for LLMs.

ousid/lean

Plugin Claude Code

Dense answers, honest token accounting, Laravel/PHP aware.

Soumya7681/prompt-fixer

Plugin Claude Code

Plugin marketplace listing 1 plugin: prompt-fixer.

Soumya7681/prompt-fixer

Plugin Claude Code

Cleans up rough prompts before the assistant acts on them: fixes typos, expands terse asks, repairs broken {{template}} placeholders, and strips filler openers. Includes a /fix-prompt command, an auto-invokable skill, and a non-blocking UserPromptSubmit nudge.

iamakbarsha1/whetstone

Plugin Claude Code

Agent skills honed on real work.

iamakbarsha1/whetstone

Plugin Claude Code

Agent skills honed on real work — short, self-contained rule sets distilled from concrete engineering failures, so an agent (or human) can apply the lesson without the original context.

product-on-purpose/writing-style-catalog

Plugin Claude Code

Composable writing instructions on four orthogonal axes (Voice, Tone, Style, Format): pick one entry per axis and the builder assembles a ready-to-paste prompt prefix that steers any LLM toward a precise register, reasoning pattern, and layout. Ships 97 curated entries, 1193 worked examples, 158 diff-pairs, and 14…

mryll/skills

Plugin Claude Code

Plugin marketplace listing 1 plugin: mryll-skills.

RBraga01/builder-design

Plugin Claude Code

AI UI design quality enforcement: 8 skills and 5 agents for UI design teams.

RBraga01/builder-ai

Plugin Claude Code

AI product quality enforcement: 8 skills and 5 agents for LLM product teams.

download4you/n2-fieldops

Plugin Claude Code

A multi-runtime FieldOps suite with 17 evidence-driven skills for Claude Code, Codex, Kimi, and CC Switch.