Add agent-guard-plugins to Plugins#38
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Prompt-injection guard plugin for Codex CLI: ships a .codex-plugin/plugin.json that bundles PreToolUse and PostToolUse hooks screening tool input and returned content with a fine-tuned classifier.
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What
Adds dannyliv/agent-guard-plugins to the Plugins section.
Why it belongs
Agent Guard is a prompt-injection security plugin for Codex CLI. It ships a real
.codex-plugin/plugin.jsonmanifest that bundles PreToolUse and PostToolUse lifecycle hooks. The hooks screen each tool call's input params and returned web/file/MCP content with a fine-tuned prompt-injection classifier before Codex acts on it, catching indirect prompt injection hidden in third-party content.Quality checklist
.codex-plugin/plugin.jsonplugin form and a repo-scoped.agents/plugins/marketplace.json; also installable via a one-lineagent-guard-codex-installhook installer.