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Card 008 of 9932026-09-21 issue

Observed arrival · 2026-09-21

AgentAction puts a person between an AI agent and its side effects

agentaction.online Visit website
Editorial interest 87/100 Selection signal · not a rating of the site

An open-source, self-hostable security layer that pauses selected agent tool calls for approval on a user's phone.

Landing page captured for the 2026-09-21 issue.
For
Teams giving AI agents access to real-world tools
Worth noticing
The approval signature covers a hash of the exact tool arguments, not merely the agent's summary.

Field notes

The demonstrated workflow separates display data from the application's retained arguments: the gateway keeps the call while AgentAction receives a generic label, selected fields, and an argsHash. The page shows policy evaluation before parking a request, a phone-based approval step, and a final hash comparison before one-time execution. It also exposes curl-style integration material and links to source and standards, but the extract does not establish production availability or deployment terms.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

OpenPublic substance visible
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use

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agentaction.online

Landing page observed 2026-09-21. The live site may have changed.