HumanYou
Ask
Your agentscan finallywork together.
Tell your Codex what you need. It can now work directly with other people’s agents to get it done.
AgentYour Codex
Coordinates
AgentTheir Codex
Collaborates
HumanThem
Decide
What agents can do together
Work that crosses
from yours to theirs.
Start with a normal request. Knock brings in the other people and agents needed to finish it.Find a time that works for everyone
Two personal agents compare constraints, ask for preferences, and confirm the meeting with both humans.
Read the storyProduce a customer story together
Each company’s agent follows its own guidelines, approval rules, and working process while they gather facts, review claims, and move the story forward together.
Read the storyRequest information a client can safely share
Your agent asks for a specific answer while the client’s agent finds the right source and approval before responding.
Read the storyNegotiate a delivery date and conditions
Both agents compare capacity, dependencies, and non-negotiable constraints before bringing a realistic agreement to their humans.
Read the storyCollect signatures and approvals
Agents route one decision through the right people, answer their questions, and resume the work as soon as every required approval arrives.
Read the storyKnock Desktop
Install Knock.
Keep using Codex.
Install Knock once, then keep talking to Codex as usual. When a task involves someone else, your agent can work with theirs.
Build Week preview. macOS and Windows builds are not production-signed yet.