docs(archive): Preserve PR #5426

docs/pr-discussions/PR-5426-docs-b-0857-1-closed-audit-verifies-pr-5389-step-6-95a-insta.md

@@ -0,0 +1,84 @@
+---
+pr_number: 5426
+title: "docs(B-0857.1 closed): audit verifies PR #5389 Step 6.95a install.sh invocation PRESENT (zeta-install.sh:1097) + corrects B-0857 row body authoring error"
+author: "AceHack"
+state: "MERGED"
+created_at: "2026-05-27T08:03:47Z"
+merged_at: "2026-05-27T08:09:56Z"
+closed_at: "2026-05-27T08:09:56Z"
+head_ref: "backlog/b-0857-1-audit-pr-5389-step-6-95a-verified-present-2026-05-27"
+base_ref: "main"
+archived_at: "2026-05-27T12:14:55Z"
+archive_tool: "tools/pr-preservation/archive-pr.ts"
+---
+
+# PR #5426: docs(B-0857.1 closed): audit verifies PR #5389 Step 6.95a install.sh invocation PRESENT (zeta-install.sh:1097) + corrects B-0857 row body authoring error
+
+## PR description
+
+## Summary
+
+B-0857.1 sub-row audit (per B-0857 implementation order step 1: "audit current state"). Result: **PR #5389's commit-message claim VERIFIED PRESENT** at \`full-ai-cluster/usb-nixos-installer/zeta-install.sh:1097-1099\` (Step 6.95a-bootstrap). No drift; no repair needed.
+
+## What the audit found
+
+zeta-install.sh:1090-1100 contains the invocation:
+
+\`\`\`bash
+sudo HOME=\"$ZETA_HOME\" -u \"#$ZETA_UID\" \\
+  bash -c \"cd $ZETA_HOME/Zeta && tools/setup/install.sh\"
+\`\`\`
+
+Dispatch chain: install.sh → linux.sh (detects /etc/NIXOS) → common/mise.sh (reads .mise.toml).
+
+Extends GOVERNANCE §24 three-way-parity (dev + CI + devcontainer) to NixOS cluster nodes via the canonical entry.
+
+## B-0857 row body correction
+
+The B-0857 row body (#5423) claimed \"grep of current zeta-install.sh finds NO actual invocation.\" This was an authoring error — the grep produces 9 matches; line 1097 is load-bearing. The authoring step skipped the verify-by-grep that this audit sub-row commits to.
+
+Row body now reads: \"Audit verified (B-0857.1, 2026-05-27): integration IS present at full-ai-cluster/usb-nixos-installer/zeta-install.sh:1097-1099 inside Step 6.95a-bootstrap; no drift; no repair needed.\"
+
+This is a substrate-drift catch at sub-row audit scope (the audit found the row's own framing was the drift, not the integration substrate). Correction is additive per retraction-native discipline.
+
+## Status
+
+Closed at landing. No implementation work needed; substrate is correct.
+
+## Test plan
+
+- [x] grep confirms invocation at line 1097-1099
+- [x] Single-tick small PR; bounded scope
+- [x] ls-tree count canary clean (61 = 61)
+- [x] Per .claude/rules/agent-worktree-hygiene-never-hold-main-...: isolated worktree; never touched operator's primary checkout
+- [x] Per .claude/rules/non-coercion-invariant.md HC-8: substrate-honesty preserved
+- [x] Per .claude/rules/grep-substrate-anchors-before-razor-as-metaphysical.md: verify-before-asserting discipline applied to the audit
+
+🤖 Generated with [Claude Code](https://claude.com/claude-code)
+
+## Reviews
+
+### COMMENTED — @copilot-pull-request-reviewer (2026-05-27T08:04:53Z)
+
+## Pull request overview
+
+Documentation-only PR that adds a new closed P2 backlog sub-row (B-0857.1) recording the audit of PR #5389's integration claim, and corrects the parent B-0857 row body to reflect the verified-present state of the `tools/setup/install.sh` invocation in `zeta-install.sh`.
+
+**Changes:**
+- Adds new backlog row file `B-0857.1` (status: closed) documenting the audit result with grep-verified line references.
+- Updates the parent `B-0857` row body to replace the inaccurate "grep finds NO actual invocation" claim with the audit-verified finding.
+
+### Reviewed changes
+
+Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
+
+| File | Description |
+| ---- | ----------- |
+| docs/backlog/P2/B-0857.1-audit-pr-5389-...md | New closed audit sub-row documenting verified-present integration at zeta-install.sh:1097-1099. |
+| docs/backlog/P2/B-0857-install-sh-universal-unix-entry-...md | Corrects row body to reflect audit finding; updates substrate-honest framing. |
+
+## General comments
+
+### @chatgpt-codex-connector (2026-05-27T08:03:52Z)
+
+You have reached your Codex usage limits for code reviews. You can see your limits in the [Codex usage dashboard](https://chatgpt.com/codex/cloud/settings/usage).