--- type: Security pr: 2113 --- **`gate="blocking-human"` checkpoints are no longer auto-approved by the execute-phase orchestrator** — the package-legitimacy gate (#2827) spans two layers: `gsd-executor` refuses to auto-approve a `gate="blocking-human"` checkpoint and escalates it via `checkpoint_return_format` so a human can vet the package, and `execute-phase`'s `checkpoint_handling` step decides what happens next. That step dispatched purely on checkpoint *type* and never read `gate`, so under `--auto` / `--chain` it immediately auto-approved the very checkpoint the executor had just refused to auto-approve (`human-verify → {user_response} = "approved"`). The slopsquatting defence was therefore inert in exactly the unattended mode where nobody is watching: an `[ASSUMED]`/`[SUS]` package reached install with no human ever seeing the verification prompt. `checkpoint_handling` now carves out `gate="blocking-human"` (and the package-legitimacy `what-built` markers) ahead of every auto-mode branch, routing those checkpoints to the standard present-to-user flow regardless of type. `references/checkpoints.md` documents the `gate` attribute and its two values for the first time — previously `blocking-human` appeared nowhere outside `agents/gsd-executor.md`, so no planner had a documented way to author a checkpoint that auto-mode could not bypass. The existing regression test asserted the executor half only; it now asserts the orchestrator half too, which is why it stayed green while the gate was open. (#2107)