Repo · Safety & guardrails
agent-chaperone
Screen an agent's tool calls with Jev before they run.
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Screens an AI agent's tool calls before they run and tool results before the agent reads them. An MCP proxy plus a hooks adapter for a client's built-in tools.
agent-securityai-agent-securityai-agentsai-securityclaude-codeguardrailsjevjev-aillm-securitymcpmcp-securitymcp-toolsmodel-context-protocolprompt-injectionruntime-securitysecuritytypesafetypesafe-aitypesafe-jevtypescript
How builders describe it
Screens an AI agent's tool calls before they run and tool results before the agent reads them. An MCP proxy plus a hooks adapter for a client's built-in tools.
Calibrated firewall for AI agent tool calls: screens MCP traffic through a proxy and a client's built-in tools through hooks, with policy thresholds and a local judgment log. Default screening uses TypeSafe Jev; starts in shadow mode (blocks nothing until you tune).
An MCP proxy and hooks adapter that screens an agent's tool calls before they run and the tool results before the agent reads them, with thresholds in a policy file.
The decision Jev makes
Allow, flag or escalate a message, tool call or action.
Where it fits
Screening messages, tool calls and outputs before they cause trouble. Jev gives a fast, calibrated verdict that can sit in front of every request or agent action. All 229 safety & guardrails projects →
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