I believe that the Credo agent is actually starting, however it is taking longer to start in some instances than the 30 second timer we have set waiting to get a status. This is manifesting now because we no longer run tests if we don't get a status on an agent. In the past it would carry on and we wouldn't notice. I think we need to extend the checking of status to 60 seconds.
I've seen this a couple times with ACAPy as well.

I may be mistaken and the credo agent is actually not starting. I am getting a Require ESM error when building locally now. A bad library version update maybe.

Any luck resolving this? When I run it locally, no logs are written, so I can't see anything to debug. AFAIK, the build works fine.

Not yet. I'm working through the package.json trying to pin modules to previous versions but not luck.

This is the error.

Starting Credo agent ...
yarn run v1.22.22
$ /src/node_modules/.bin/ts-node src/index.ts -p 9030 -i false
/src/node_modules/@tsed/common/lib/cjs/exports.js:5
require("@tsed/logger");
^
Error [ERR_REQUIRE_ESM]: require() of ES Module /src/node_modules/@tsed/logger/lib/esm/index.js from /src/node_modules/@tsed/common/lib/cjs/exports.js not supported.
Instead change the require of index.js in /src/node_modules/@tsed/common/lib/cjs/exports.js to a dynamic import() which is available in all CommonJS modules.
    at Object.<anonymous> (/src/node_modules/@tsed/common/lib/cjs/exports.js:5:1) {
  code: 'ERR_REQUIRE_ESM'
}
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

So something has changed in Tsed/common or logger.

After working with the main Ts.ED maintainers, they have fixed a v6 peer dependancy and a v7 peer dependancy. This has fixed our immediate problem. However, I am still working with them to move the credo backchannel to Ts.ED v7 permanently so this will be less likely to happen again. So if we can get to a working v7 I will still do a PR for that. I'll only spend a few more hours on that and if we can't sort it will revert to v6 as is.
Closing this issue since credo tests behaved normally in last night's run.

Awesome stuff — well done!!