OnToolCall (Codex)

hook-surface:codex.on-tool-call

HookSurfacechannels-hooks/hook-surfaces/native/codex-on-tool-call.yaml·Open in Graph →

Attributes

eventName

OnToolCall (Codex)

displayName

OnToolCall (Codex)

kind

native

originVendor

OpenAI

direction

pre

blocking

true

family

shell-hook

payloadSchema

type

object

required

properties

toolName

type

string

args

type

object

description

Codex's pre-tool-call hook. Canonicalizes to pre-tool-use.

canonicalized_to1

emits_hook1

exposes2

agent-runtime-impl:codex-app-server.runtime@current·AgentRuntimeImplCodex App-Server Runtime (current)
agent-runtime-impl:codex.runtime@1.x·AgentRuntimeImplCodex CLI Runtime (1.x)

fires_hook1