Doesn't detect missing needs

[bytesnz]

A slightly more complicated one, but it would be good if it could detect missing needs from needs context use. You could also do the same for the steps context

name: cyclic-test
on:
  pull: {}
jobs:
  test:
    runs-on: ubuntu-latest
    outputs:
      test: ${{ steps.step1.test }}
    steps:
      - id: step1
        run: echo test=hello >> "$GITHUB_OUTPUT"
  test1:
    runs-on: ubuntu-latest
    outputs:
      # step missing
      test: ${{ steps.step1.test }}
    steps:
      # need missing
      - run: echo ${{ needs.test.outputs.test }}

[mpalmer]

Yeah, that one sounds significantly more complicated, as (if I'm understanding the use-case correctly) doing this requires parsing and understanding the content of expressions? If I've got the right end of the stick there, it'd almost certainly be blocked on at least a minimal implementation of #22.

[bytesnz]

Yes, you thinking is correct, so yeah, it would be a lot more complicated and yes, would need #22