The anchore plugin reads input images from a file that is setup as an input pre-req before the anchore plugin runs - currently the plugin works with either imageIds or a string (repo/tag), but there is a bug that is triggering when an image is specified using a repo/tag string that contains a '/' character. See below for output when this occurs:

2016-11-01 21:30:33,900 DEBUG analyzer.py _init_ analyzer initialization: begin
2016-11-01 21:30:33,901 DEBUG analyzer.py _init_ init input processed, loading input images: [u'jenk_anchoretest/meh']
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/anchore/anchore_utils.py", line 957, in image_context_add
newimage = anchore_image.AnchoreImage(i, anchore_datadir, docker_cli=docker_cli, allimages=allimages, dockerfile=dockerfile, tmpdirroot=tmproot, usertype=usertype, anchore_db=anchore_db, docker_images=docker_images)
File "/usr/lib/python2.7/site-packages/anchore/anchore_image.py", line 102, in _init_
if dockerfile and (os.stat(dockerfile).st_size <= 0 or not os.path.exists(dockerfile) or not os.path.isfile(dockerfile)):
OSError: [Errno 2] No such file or directory: '/root/anchore.jenkinsplugin_227/dfile.jenk_anchoretest/meh'
2016-11-01 21:30:33,909 ERROR common.py anchore_print_err failed to run analyzer
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/anchore/cli/analyzer.py", line 304, in analyze
success = analyzer.Analyzer(anchore_config=anchore_config, imagelist=inlist, allimages=allimages, force=force, args=args).run()
File "/usr/lib/python2.7/site-packages/anchore/analyzer.py", line 52, in _init_
self.images = anchore_utils.image_context_add(imagelist, allimages, docker_cli=contexts['docker_cli'], dockerfile=self.dockerfile, anchore_datadir=self.anchore_datadir, tmproot=self.config['tmpdir'], anchore_db=contexts['anchore_db'], docker_images=contexts['docker_images'], usertype=usertype, must_load_all=True)
File "/usr/lib/python2.7/site-packages/anchore/anchore_utils.py", line 963, in image_context_add
raise Exception(errorstr)
Exception: Could not load/initialize all input images.
Image: jenk_anchoretest/meh
Info:
[anchore][info] Done Running Anchore Analyzer: exitcode=1

There is a current known workaround is to use the imageId which will allow the plugin to proceed.