acpx: Headless CLI client for stateful Agent Client Protocol (ACP) sessions

by openclaw · Codex Skill · ★ 3.4k

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

How to install acpx

npm install -g acpx@latest

Taken from the project's README on GitHub. Check the security audit before running it.

Security audit verdict: SAFE · quality 70/100

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. Full audit →

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.

agentclientprotocol

Quick Facts

Stars3,420
Forks355
LanguageTypeScript
CategoryCodex Skill
LicenseMIT
Quality Score70/100
Open Issues12
Last Updated2026-11-05
Created2026-02-17
Platformscli, node
Est. Tokens~15k

About acpx

acpx 🤝 — Agents talking to agents, minus the terminal séance is a headless command-line client for the Agent Client Protocol (ACP). It gives agents, orchestrators, and developers one structured interface for persistent sessions, one-shot runs, permissions, and machine-readable output across ACP-compatible coding agents. [!NOTE] is pre-1.0. Treat its CLI and runtime interfaces as evolving.

Compatible Skills

These tools work well together with acpx for enhanced workflows:

  • harnss — semantic(0.45)+complementary+rare_topics+same_lang+similar_pop+shared_platform (70%)
  • use-acp — semantic(0.67)+complementary+same_lang+shared_platform (64%)
  • claw-orchestrator — semantic(0.30)+complementary+same_lang+similar_pop+shared_platform (60%)
  • scira-mcp-chat — semantic(0.19)+complementary+same_lang+similar_pop+shared_platform (57%)

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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