Two pages. Evidence over stack lists.

Only if it is current and you want it read. Zero of the 14 Australian technology advertisements we read and recorded asked for one. A stale repository with a half-finished tutorial project does more harm than no link at all.

Yes, for private-sector roles. None of the 14 tech ads we read set a page limit, and the Australian convention is two. The exceptions we found were government and defence applications that stated their own ceiling, and we write to whatever the advertisement says.

State the level you hold and that it is current. Do not publish the number or the detail. If you do not hold one, say you are eligible if you are, since a clearance needs citizenship and an employer to sponsor it and no candidate can obtain one alone.

Rarely in the private sector: one of 14 advertisements asked. For government and defence-adjacent employers the equivalent is a pitch against selection criteria, usually with a stated page or character limit, and that is a different document written a different way.

Not yet. The resume service covers technology roles now, and the APS handbook covers government technology applications. A dedicated guide will appear only when it exists.

It is a weaker line than most candidates think. An AGSVA clearance requires Australian citizenship and an entity willing to sponsor it, so no individual can obtain one on their own initiative. State your citizenship and any clearance you already hold, and leave the aspiration off.

Yes, it is a separate and more common screen. Five of the 14 technology advertisements we read and recorded named citizenship or work rights without naming a clearance level at all, a lighter bar than a formal clearance but still worth answering plainly.

Not necessarily. Every GitHub mention we found named the platform as a tool inside a requirements list, such as GitHub Actions or GitHub for CI/CD, rather than an instruction to review your repositories. Read the sentence around it before assuming it is asking for a link.