Q supplied James Bond and other secret agents with cool gadgets:
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This repo is a source of cool agent gadgets as well, but they are for Indy-style self-sovereign identity agents (much cooler than 007 :-).
Q's gadgets may be especially helpful in testing and development. They include:
A command-line tool ("DIDComm send") that lets you send an arbitrary A2A message to some other agent. Scriptable.
An agent that interacts by reading and writing files in a folder in the filesystem is a useful way to simulate arbitrary behavior of other agents. Observe what your agent is sending by watching a folder. Take as long as you like to build any message you want, drop it in that folder as a response, and see how your agent reacts. Scriptable; record and playback agent behaviors by doing simple file I/O.
A pluggable relay that lets you translate any agent transport into different transports (either 1-to-1, or teeing 1-to-many), for arbitrary testing scenarios.
An agent that uses SMTP and IMAP as its transports is a useful way to experiment with something other than HTTP. It makes the asynchronous nature of DID Communication very obvious. And the best part is, you don't even have to run one to use one--there's an instance of this agent running at indyagent1@gmail.com. Send it an email and see what happens.