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letta-ai-agent-file

Use when you need to save, share, version or move a whole agent — its persona, memory and behaviour — as one portable file.

webvoyager

Research browser agent from Zhejiang University and HKU. It uses GPT-4V interleaved screenshot + HTML observations to complete open-ended web tasks; established an early web-agent benchmark (WebVoyager).

claude-codex-settings

A set of plugins for core developer tasks, covering GitHub, Azure, MongoDB, Tavily, Playwright and more. Also works with a few other providers.

agentsys

Workflow automation system for Claude with a group of useful plugins, agents, and skills. Automates task-to-production workflows, PR management, code cleanup, performance investigation, drift detection, and multi-agent code review. Includes agnix for linting agent configurations. Built on thousands of lines of code with thousands of tests. Uses deterministic detection (regex, AST) with LLM judgment for efficiency. Used on many production systems.

surf-computer-use

E2B Surf: a Stagehand-powered computer-use interface layer for E2B Firecracker sandboxes; connects the act/extract/observe primitives directly to microVM display output for lightweight headless computer use.

modal-labs-modal-client

Modal — serverless GPU/CPU containers for running agents, sandboxes and model inference from Python (this is the client SDK).

Contributed by Sentinel

unicity-aos-capsule-identity

Use when an agent's identity must be persisted as state and assembled into its system prompt at boot, rather than pasted into a prompt by hand.

web-assets-generator-skill

Easily generate web assets from Claude Code including favicons, app icons (PWA), and social media meta images (Open Graph) for Facebook, Twitter, WhatsApp, and LinkedIn. Handles image resizing, text-to-image generation, emojis, and provides proper HTML meta tags.

superdesign-skill

The design skill for Claude Code, Cursor and any coding agent. Stop shipping AI-slop UI: turn it into shippable, tasteful frontend. Install: npx skills add superdesigndev/superdesign-skill. Powered by superdesign.dev

Contributed by Sentinel

agntcy-oasf

Use when agents must describe themselves to other systems in a common schema so they can be catalogued, discovered and verified.

cc-devops-skills

Skills for DevOps work that generate and validate infrastructure-as-code with shell scripts and CLI tools, for most deployment platforms. Also useful as documentation.

telagod-code-abyss

Use when you want a coding agent to have a consistent, composable personality and voice across Claude Code, Codex, Gemini CLI and OpenClaw.

agntcy-dir

Use when agents and multi-agent systems need to announce themselves and be found across organisations rather than hardcoded.

character-card-spec-v2

Use when reading or writing the character-card files that the roleplay-agent ecosystem actually ships, including the PNG-embedded variant.

cloudflare-web-bot-auth

Use when a website has to be able to tell that a request really came from your agent and not from someone impersonating it.

highflame-ai-zeroid

Use when a fleet of autonomous agents needs issued identities with a lifecycle — created, rotated and revoked.

claude-code-agents

Comprehensive E2E development workflow with helpful Claude Code subagent prompts for solo devs. Run multiple auditors in parallel, automate fix cycles with micro-checkpoint protocols, and do browser-based QA. Includes strict protocols to prevent AI going rogue.

agentmail-to-agentmail-toolkit

Use when an agent needs its own email address so people and systems can reach it, and it can act on what arrives.

book-factory

A comprehensive pipeline of Skills that replicates traditional publishing infrastructure for nonfiction book creation using specialized Claude skills.

agntcy-identity

Use when agents, MCP servers and multi-agent systems all need issued identities that another party can verify.

character-card-spec-v3

Use when authoring an agent persona against the current character-card standard, with lorebooks, assets and decorators.

agentrhq-authsome

Use when agents must stay logged in to third-party services without ever seeing your credentials.

gebruder-wirken

Use when autonomous agents need one gateway that holds their credentials, isolates them per channel, and logs every session.

opena2a-agent-identity-management

Use when non-human identities need the same lifecycle a workforce IAM gives people — issue, authorize, audit, revoke.