docs,ci: name the change, never the plan — naming rules + merge gate

.claude/rules/go.md

@@ -36,4 +36,5 @@ paths:
   double-click launch from Explorer. New CLI subcommands call
   `wincon.AttachParent()` at the top.
 - Commits: lowercase, terse, scope-prefixed ("v2 motion: …"); one concern per
-  commit; protocol and implementation never change in the same commit.
+  commit; protocol and implementation never change in the same commit. Naming +
+  hygiene (no plan labels, no attribution trailers): `docs/agent/naming.md`.

.github/workflows/ci.yml

@@ -209,6 +209,48 @@ jobs:
           bash <(curl -sSf https://raw.githubusercontent.com/rhysd/actionlint/main/scripts/download-actionlint.bash)
           ./actionlint -color
 
+  # docs/agent/naming.md: names describe the change, never the plan that produced
+  # it, and commit messages carry no assistant attribution. PR-only because the
+  # checked surfaces (head branch, title, commit range) only exist on PRs.
+  naming:
+    if: github.event_name == 'pull_request'
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        with:
+          persist-credentials: false
+          fetch-depth: 0
+      # head_ref and the PR title are attacker-controlled on fork PRs — they enter
+      # the script through env, never through template interpolation (zizmor).
+      - name: no plan jargon or attribution trailers
+        env:
+          HEAD_REF: ${{ github.head_ref }}
+          PR_TITLE: ${{ github.event.pull_request.title }}
+          BASE_SHA: ${{ github.event.pull_request.base.sha }}
+        run: |
+          jargon='\b(phase|pillar|sprint|milestone|week)[ _-]?[0-9ivx]+\b|\bbatch[ _-][a-d0-9]\b'
+          trailers='^(co-authored-by:.*claude|claude-session:)'
+          fail=0
+          if printf '%s\n%s\n' "$HEAD_REF" "$PR_TITLE" | grep -qiE "$jargon"; then
+            echo "::error::branch name or PR title carries plan jargon - name the change, not the plan (docs/agent/naming.md)"
+            fail=1
+          fi
+          if git log --format='%B' "$BASE_SHA..HEAD" | grep -qiE "$jargon"; then
+            echo "::error::a commit message in this PR carries plan jargon - name the change, not the plan (docs/agent/naming.md)"
+            git log --format='%h %s' "$BASE_SHA..HEAD" | grep -iE "$jargon" || true
+            fail=1
+          fi
+          if git log --format='%B' "$BASE_SHA..HEAD" | grep -qiE "$trailers"; then
+            echo "::error::assistant attribution trailer in a commit message - no Claude-Session/Co-Authored-By: Claude (docs/agent/naming.md)"
+            fail=1
+          fi
+          if git diff --name-only "$BASE_SHA...HEAD" | grep -iE '(phase|pillar|sprint|milestone|week|batch)[_-]?([0-9ivx]+|[a-d])([._-]|$)'; then
+            echo "::error::a changed file path carries plan jargon - name the file for its topic (docs/agent/naming.md)"
+            fail=1
+          fi
+          exit "$fail"
+
   build-windows:
     needs: frontend
     runs-on: windows-latest

CLAUDE.md

@@ -29,6 +29,8 @@ polish. Protect what works; be honest about what doesn't exist yet (Reality chec
   triggers** — `docs/agent/reasoning.md`. Read it before chasing any bug.
 - **Known UX debt** — `docs/agent/polish-backlog.md`; pull from it before inventing
   new polish work.
+- **Naming & git hygiene** (branches, PRs, commits, spec files) —
+  `docs/agent/naming.md`; CI's naming job is the gate.
 - **Full command list + devmock UI state matrix** — `docs/agent/commands.md`.
 - **Design charter** — `frontend/DESIGN.md`; read it before any UI work.
 
@@ -216,13 +218,20 @@ Nothing enforces this; it is judgment, and ignoring it has already cost a sessio
   and check with `git merge-base --is-ancestor` rather than assuming one exists.
 - **Label knowingly-incomplete work `wip:` and say what is missing.** An unlabelled
   stub reads as a finished decision to the next session.
+- **Name branches, PRs, and commits for the change, never the plan that produced
+  them** — plan labels ("phase 9", "pillar 8") mean nothing outside their session.
+  Rules + examples: `docs/agent/naming.md`; CI's naming job is the gate.
+- **No attribution in commits.** DO NOT append Claude session URLs; DO NOT include
+  `Co-Authored-By: Claude` trailers. The message says what changed and why, nothing
+  else (same gate; `.claude/settings.json` sets attribution empty at the source).
 
 ## Enforcement — what is a gate, not advice
 
 Blocks a merge → CI. `.github/workflows/ci.yml`: gofmt, vet, `go test -short` (unit +
 e2e + goleak + doccheck), `-race` (CI is the **only** place it runs — it needs cgo),
 the burst floor (own job, best-of-3 — never lower the floor to go green),
-`golangci-lint` (`.golangci.yml`), a TODO/FIXME ban, `actionlint`, and a
+`golangci-lint` (`.golangci.yml`), a TODO/FIXME ban, `actionlint`, the naming gate
+(plan jargon + attribution trailers anywhere in a PR — `docs/agent/naming.md`), and a
 stale-`frontend/wailsjs` check. `.github/workflows/security.yml`: CodeQL, govulncheck,
 gitleaks, dependency-review, npm audit (gosec/zizmor/Scorecard are advisory → Security
 tab). `.github/workflows/fuzz.yml` fuzzes the parsers nightly;

docs/agent/naming.md

@@ -0,0 +1,55 @@
+# Naming & git hygiene — name the change, never the plan
+
+Plans are session-scoped; names are permanent. A branch, PR, commit, or spec file
+named after a plan's internal structure ("phase 9", "pillar 8", "batch A") means
+nothing the moment that session ends. Cleaning them out of this repo on 2026-07-17
+cost a 56-commit history rewrite, two branch renames, and edits to three merged
+PRs — names that describe **what the change is** never need that.
+
+Enforced by the `naming` job in `.github/workflows/ci.yml`: every PR's head branch
+name, title, commit messages, and changed file paths are rejected if they carry
+plan jargon or attribution trailers.
+
+## The durability test
+
+*Would this name make sense to someone who never saw the plan that produced it?*
+If decoding a name requires the plan document, the name is wrong.
+
+## Rules
+
+- **Branches** are `type/feature-slug` — `feat/`, `fix/`, `security/`, `docs/`,
+  `ci/`, `deps/`. The slug names the capability or fix (`feat/agent-management-gui`,
+  `security/agent-identity-hardening`), never a plan label, counter, or date.
+- **PR titles** read like a commit subject: what the change is. **PR bodies**
+  describe what changed and how it was verified — plan narrative stays in the plan.
+  Cross-reference other work by PR number (#13) or branch name, never by plan label.
+- **Commit messages, body included.** "Lands in Phase 3" rots the moment the plan
+  dies; point at the artifact instead ("lands with the multi-agent GUI"). Avoid bare
+  commit SHAs in messages and PR bodies where a PR number or filename works — SHAs
+  don't survive history rewrites.
+- **Spec files** under docs/superpowers/specs/ are named
+  YYYY-MM-DD-topic-design.md — the topic, not the plan's name for the work.
+- **No attribution trailers.** No Claude session URLs, no Co-Authored-By: Claude.
+  A commit message carries what changed and why — nothing else.
+  `.claude/settings.json` sets attribution empty at the source; the CI gate
+  catches strays.
+- **Merge commits take the PR title** — a repo setting (merge_commit_title:
+  PR_TITLE), so never hand-write "Merge pull request #N from …" subjects. Head
+  branches auto-delete on merge; don't recreate long-lived ones.
+
+## Banned in names and messages (the CI regex, case-insensitive)
+
+phase/pillar/sprint/milestone/week followed by a number, "batch" followed by a
+letter or number, `Claude-Session:` and `Co-Authored-By: …Claude…` trailer lines.
+
+## Before → after (from the 2026-07-17 cleanup)
+
+```
+feat/identity-phase9-finalize          → feat/identity-enrollment-finalize
+feat/pillar8-agent-mgmt                → feat/agent-management-gui
+identity phase 9: … finalize + docs    → identity: enrollment, pairing, and revocation — finalize + docs
+docs: Pillar 8 … Batch A design spec   → docs: agent-management GUI surfacing design spec
+"until Phase 3's Status.Agents"        → "until the multi-agent GUI's Status.Agents lands"
+2026-07-16-pillar8-agent-management-gui-design.md
+                                       → 2026-07-16-agent-management-gui-surfacing-design.md
+```