open-tag: Open-source, self-hostable alternative to Claude Tag — a Slack-style workspace where your team and its AI

by fancyboi999 · Codex Skill · ★ 167

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

Security audit verdict: SAFE · quality 67/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours.

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

agentic-workflowsagentsai-agentschatopsclaude-codeclaude-tagcodexcollaborationllmlocal-first

Quick Facts

Stars167
Forks43
LanguageTypeScript
CategoryCodex Skill
LicenseApache-2.0
Quality Score67/100
Open Issues2
Last Updated2026-08-22
Created2026-06-24
Platformsbrowser, claude-code, codex, node
Est. Tokens~16k

About open-tag

open-tag English · 简体中文 The open-source workspace where humans and AI agents work as one team. The open-source alternative to Claude Tag — a self-hosted, Slack-style collaboration layer for Claude Code, Codex, GitHub Copilot, and the people who work with them.

Compatible Skills

These tools work well together with open-tag for enhanced workflows:

  • clopen — semantic(0.20)+complementary+rare_topics+same_lang+similar_pop+shared_platform (61%)

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

View on GitHub → Browse Codex Skill tools