test(e2e): cover GrubSetKargs with story 138

CONTRIBUTING.md

@@ -44,10 +44,10 @@ table below.
 
 | Area | Why it matters | Difficulty |
 |---|---|---|
-| **Ubuntu LTS support** | The current suite is 83 Ubuntu stories. Committed live-VM evidence covers 79 of those Ubuntu stories on each LTS release, with a committed replay twin that reproduces each run: 22.04, 24.04 and 26.04 all at 79/79. The four additional stories are not yet included in a committed live-VM run. `ubuntu-vm.sh` accepts `UBUNTU_RELEASE=jammy\|noble\|resolute`. Remaining: story coverage for the cross-family actions, and one Debian-only action still has no story: `GrubSetKargs`. | medium |
+| **Ubuntu LTS support** | The current suite is 84 Ubuntu stories. Committed live-VM evidence covers 79 of those Ubuntu stories on each LTS release, with a committed replay twin that reproduces each run: 22.04, 24.04 and 26.04 all at 79/79. The five additional stories are not yet included in a committed live-VM run. `ubuntu-vm.sh` accepts `UBUNTU_RELEASE=jammy\|noble\|resolute`. Remaining: story coverage for the cross-family actions, and every Debian-only action has a story. | medium |
 | **Distro detection coverage** | Robust `/etc/os-release` parsing for every release we claim to support. Pure-function tests against real fixture files, no integration mocks. The existing fixtures at the bottom of `crates/sysknife-core/src/distro.rs` show the shape. | easy |
 | **Action catalogue gaps** | Add a typed action (for example `EnableFirewallZone`). Small and isolated, and every PR carries the policy entry, the risk level and the tests. | easy |
-| **E2E story coverage** | Real prompts, real LLM, real daemon. The suite is 137 stories: 54 atomic + 83 Ubuntu. What is left is the cross-family middle: of the action names available on both families, 61 are still untouched by any story, plus 10 Fedora-only and 1 Ubuntu-only ones. See #233 for the clustered map. | medium |
+| **E2E story coverage** | Real prompts, real LLM, real daemon. The suite is 138 stories: 54 atomic + 84 Ubuntu. What is left is the cross-family middle: of the action names available on both families, 61 are still untouched by any story, plus 10 Fedora-only and 0 Ubuntu-only ones. See #233 for the clustered map. | medium |
 | **Fedora Atomic validation** | The action families exist and `DistroId::is_supported()` returns true for Atomic 41 and up. Nobody has run `tests/e2e/atomic-vm.sh` against a current release. Needs Fedora Atomic hardware or a VM host. | tedious |
 | **Demo recording on real hardware** | Replace the bundled demo GIF with a 30-second recording on real Ubuntu 26.04 with rollback visible. | easy |
 

docs/introduction.md

@@ -104,13 +104,13 @@ SysKnife, not an afterthought.
 
 > **ℹ️ Distro support**
 >
-> The current suite is 83 Ubuntu stories. All three Ubuntu LTS releases have a
+> The current suite is 84 Ubuntu stories. All three Ubuntu LTS releases have a
 > committed live-VM run covering 79 of those Ubuntu stories, in
 > `tests/evidence/story-runs/`:
-> 22.04, 24.04 and 26.04 all at 79/79. The four additional stories are not yet
+> 22.04, 24.04 and 26.04 all at 79/79. The five additional stories are not yet
 > included in a committed live-VM run. Each run has a replay twin that
 > reproduces it, serving every call with zero misses.
-> One Debian-only action still has no story.
+> Every Debian-only action has a story.
 > Fedora Atomic is supported by the rpm-ostree action family, but a current
 > Silverblue 44 VM run is a release gate. Plain Fedora remains experimental
 > until the `dnf` action family ships.

tests/e2e/stories/story-138.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+# Story 138 (ubuntu, high-risk): Append quiet and remove splash in GRUB
+# Intent: "in GRUB, append quiet to the kernel command line and delete splash"
+# Distro: ubuntu
+set -euo pipefail
+INTENT="in GRUB, append quiet to the kernel command line and delete splash"
+echo "=== Story 138 (ubuntu): GrubSetKargs ==="
+PLAN=$(sysknife --dry-run --json "$INTENT" 2>/tmp/sysknife-story-138-stderr.log)
+echo "$PLAN" | jq .
+
+STEP_COUNT=$(echo "$PLAN" | jq '.plan.steps | length')
+if [[ "$STEP_COUNT" != "1" ]]; then echo "FAIL: expected 1 step, got $STEP_COUNT"; exit 1; fi
+STEP=$(echo "$PLAN" | jq '.plan.steps[0] | select(.action == "GrubSetKargs")')
+if [[ -z "$STEP" || "$STEP" == "null" ]]; then echo "FAIL: expected GrubSetKargs"; exit 1; fi
+RISK=$(echo "$STEP" | jq -r '.risk')
+if [[ "$RISK" != "high" ]]; then echo "FAIL: expected risk high, got $RISK"; exit 1; fi
+APPEND=$(echo "$STEP" | jq -c '.params.append')
+if [[ "$APPEND" != '["quiet"]' ]]; then echo "FAIL: expected append=[\"quiet\"], got $APPEND"; exit 1; fi
+DELETE=$(echo "$STEP" | jq -c '.params.delete')
+if [[ "$DELETE" != '["splash"]' ]]; then echo "FAIL: expected delete=[\"splash\"], got $DELETE"; exit 1; fi
+echo "PASS: Story 138"