Composable content quality toolkit: styleguide-calibrated writing, domain-specific formats, structural editing, citation integrity, and editorial workflows
Source tier definitions, citation formatting, verification patterns, and hallucination prevention. Load when writing content that requires external evidence, statistics, or expert claims. Covers what sources to use, how to cite them, and what to avoid.
Remove signs of AI-generated writing from text. Use when editing or reviewing any document written by or with an LLM. Detects and fixes 29 patterns documented in Wikipedia's "Signs of AI writing" guide, from significance inflation and promotional language to AI vocabulary words and filler phrases. For AI-generated content, humanizer normalization overrides competing instructions from genre conventions or brand styleguide — the patterns are systematic artifacts, not stylistic choices.
Use when drafting or revising any document where writing quality matters — anything a human will read, review, or act on. Establishes voice (genre, audience, register) and selects a styleguide before writing begins, then provides word choice corrections and construction techniques that address persistent LLM weaknesses. If the output needs to sound like it was written by someone specific for someone specific, load this skill.
SEO content optimization based on the Periodic Table of SEO Elements. Use when writing or reviewing content for search performance. Covers on-page factors, E-E-A-T signals, semantic SEO, and GEO optimization.
This skill should be used when writing social media posts with platform-specific formatting, character limits, and tone. Applies when the content brief specifies a social post, tweet, LinkedIn post, Instagram caption, Facebook post, Threads post, or Reddit submission. Covers per-platform rules, character budgets, and common pitfalls.
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A marketplace for portable AI-assistant extensions.
Portage packages skills, commands, and agents as Claude Code plugins and exposes the skills under .agents/skills/ so tools that follow the Open Skills Standard — Cursor, Codex, OpenCode, and others — can use them without a separate install. Skills are the portable unit: they work anywhere the standard is supported. The plugin format is the richer unit: Claude Code users get skills bundled with commands and agents.
plugins/ — each plugin is a self-contained directory with its own plugin.json, agents, commands, and skills..claude-plugin/marketplace.json — the registry Claude Code reads..claude/skills/ — symlinks to every skill across every plugin. Populated by the link script..agents/skills/ — a symlink to .claude/skills/. Point any Open Skills Standard tool here.Add the marketplace, then install the plugin:
/plugin marketplace add grootenberg/portage
/plugin install prose@portage
The skills live as self-contained directories under .agents/skills/. Each directory has a SKILL.md plus any bundled files (references/, scripts/, assets/). Tools that read the Open Skills Standard format can load them directly.
Point your tool at .agents/skills/ — no extra setup.
Drop the plugin into plugins/<plugin-name>/ following the existing structure.
Register it in .claude-plugin/marketplace.json.
Run the link script:
./scripts/link-marketplace-skills.sh
The script symlinks each skill directory into .claude/skills/ and maintains the .agents/skills symlink. It detects collisions on skill names, cleans up stale symlinks, and flags duplicate frontmatter names.
Re-run the script only when skills are added or removed. Edits inside an existing skill directory propagate through the symlink automatically.
MIT. See LICENSE.
See CONTRIBUTING.md. Portage is early; open an issue before starting significant work.
npx claudepluginhub birdseyeglobal/portage --plugin proseComprehensive feature development workflow with specialized agents for codebase exploration, architecture design, and quality review
A growing collection of Claude-compatible academic workflow bundles. Covers scientific figures, manuscript writing and polishing, reviewer assessment, citation retrieval, data availability, paper reading, literature search, response letters, paper-to-PPTX conversion, and evidence-grounded Chinese invention patent drafting. Rules are organized as reusable skill folders with explicit workflows and quality checks.
Comprehensive skill pack with 66 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.
Tools to maintain and improve CLAUDE.md files - audit quality, capture session learnings, and keep project memory current.
Comprehensive PR review agents specializing in comments, tests, error handling, type design, code quality, and code simplification
Harness-native ECC operator layer - 67 agents, 271 skills, 92 legacy command shims, reusable hooks, rules, selective install profiles, and production-ready workflows for Claude Code, Codex, OpenCode, Cursor, and related agent harnesses