claudecodex

skill-tools

Skills for creating and reviewing Claude Code extensions and validating shared skills under Claude Code and Codex.

6 on GitHubby JT Sternbergv1.3.5MITupdated todayCoding
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Plugin skill-tools from marketplace jtsternberg in jtsternberg/claude-plugins. Commands read from the repo's manifest — today.

What it installs

Skills (6)

  • create-skill

    Create a new skill end-to-end: scaffold, review against best practices, self-heal, deliver in one pass.

  • create-slash-command

    Create a new Claude command with proper structure and documentation

  • create-subagent

    Create a new Claude subagent with best practices and proper configuration

  • review-skill

    Review a skill for improvement opportunities against best practices

  • review-slash-command

    Review a slash command for opportunities to split into subagents

  • validate-dual-harness-skill

    Validate new or edited plugin skills against Claude Code and Codex discovery, invocation, metadata, path, permission, and runtime contracts

View source on GitHub jtsternberg.github.io

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Give an agent its own email address. Send and receive email through the AgentMail API via the official agentmail CLI: create inboxes, send mail, read incoming messages and threads, reply / reply-all / forward, manage and schedule drafts, triage an inbox, keep a local address book of people and other agents, relay tagged work orders to another AI agent, and run the agent self-signup and OTP verification flow. Ships an opt-in hook that notices unread mail during a session. Triggers on mentions of AgentMail, agent email, inbox creation, sending or checking email for an agent, contacts or address lookup, inbox triage, and emailing another agent.

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Tools for managing Claude Code session transcripts — read one out of a session, catch up on it, fork new work off it, generate recaps, or leave yourself a breadcrumb before pausing one of your parallel conversations. Shared transcript machinery lives at the plugin root so the skills cannot drift.

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Skills for working through beads epics and fixing findings with granular task and commit tracking.

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claude & codex plugins40 plugins