refactor(marketplace): split cc-architect from ultraplan-local into its own plugin

Extract `/ultra-cc-architect-local` and `/ultra-skill-author-local` plus all 7
supporting agents, the `cc-architect-catalog` skill (13 files), the
`ngram-overlap.mjs` IP-hygiene script, and the skill-factory test fixtures
from `ultraplan-local` v2.4.0 into a new `ultra-cc-architect` plugin v0.1.0.

Why: ultraplan-local had drifted into containing two distinct domains — a
universal planning pipeline (brief → research → plan → execute) and a
Claude-Code-specific architecture phase. Keeping them together forced users
to inherit an unfinished CC-feature catalog (~11 seeds) when they only
wanted the planning pipeline, and locked the catalog and the pipeline into
the same release cadence. The architect was already optional and decoupled
at the code level — only one filesystem touchpoint remained
(auto-discovery of `architecture/overview.md`), which already handles
absence gracefully.

Plugin manifests:
- ultraplan-local: 2.4.0 → 3.0.0 (description + keywords updated)
- ultra-cc-architect: new at 0.1.0 (pre-release; catalog is thin, Fase 2/3
  of skill-factory unbuilt, decision-layer empty, fallback list still
  needed)

What stays in ultraplan-local: brief/research/plan/execute commands, all
19 planning agents, security hooks, plan auto-discovery of
`architecture/overview.md` (filesystem-level contract, not code-level).

What moved (28 files via git mv, R100 — full history preserved):
- 2 commands, 8 agents, 1 skill catalog (13 files), 2 scripts, 8 fixtures

Documentation updates: plugin CLAUDE.md and README.md for both plugins,
root README.md (added ultra-cc-architect section, updated ultraplan-local
section), root CLAUDE.md (added ultra-cc-architect to repo-struktur),
marketplace.json (registered ultra-cc-architect), ultraplan-local
CHANGELOG.md (v3.0.0 entry with migration guidance).

Test verification: ngram-overlap.test.mjs passes 23/23 from new location.

Memory updated: feedback_no_architect_until_v3.md now points at the new
plugin and reframes the threshold around catalog maturity rather than an
ultraplan-local milestone.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

README.md

@@ -71,26 +71,22 @@ Key commands: `/config-audit posture`, `/config-audit feature-gap`, `/config-aud
 
 ---
 
-### [Ultra {brief | research | architect | plan | execute} - local](plugins/ultraplan-local/) `v2.4.0`
+### [Ultra {brief | research | plan | execute} - local](plugins/ultraplan-local/) `v3.0.0`
 
-Deep requirements gathering, research, Claude Code feature matching, implementation planning, self-verifying execution, and skill-factory authoring with specialized agent swarms, adversarial review, IP-hygiene scoring, and failure recovery.
+Deep requirements gathering, research, implementation planning, and self-verifying execution with specialized agent swarms, adversarial review, and failure recovery.
 
-Five core commands plus an authoring command, one pipeline with clear division of labor:
+Four commands, one pipeline with clear division of labor:
 
 - **`/ultrabrief-local`** — Capture intent. Dynamic, quality-gated interview: a section-driven completeness loop (Phase 3) followed by a `brief-reviewer` stop-gate (Phase 4, max 3 review iterations). Required sections must reach an initial-signal gate AND pass review across completeness, consistency, testability, scope clarity, and research-plan validity before `brief.md` is written. Identifies research topics with copy-paste-ready `/ultraresearch-local` commands. Optional auto-orchestration runs research + planning in foreground. Always interactive.
 - **`/ultraresearch-local`** — Gather context. Deep multi-source research with triangulation: 5 local agents + 4 external agents + Gemini bridge, producing structured briefs with confidence ratings. Makes no build decisions.
-- **`/ultra-cc-architect-local`** *(optional, v2.2)* — Match Claude Code features to the task. Reads `brief.md` + `research/*.md`, consults a seeded CC-feature catalog skill (hooks, subagents, skills, output styles, MCP, plan mode, worktrees, background agents), and produces `architecture/overview.md` with brief-anchored rationale plus `architecture/gaps.md` with issue-ready drafts for missing catalog entries. Hallucination gate (enforced by `architecture-critic`) blocks proposals for features not covered by the catalog.
-- **`/ultraplan-local`** — Transform intent into an executable contract. Per-step YAML manifests (`expected_paths`, `commit_message_pattern`, `bash_syntax_check`). Plan-critic is a hard gate on manifest quality. Requires a task brief as input (`--brief` or `--project`). Auto-discovers the architecture note when present and cross-references its `cc_features_proposed` against exploration findings.
+- **`/ultraplan-local`** — Transform intent into an executable contract. Per-step YAML manifests (`expected_paths`, `commit_message_pattern`, `bash_syntax_check`). Plan-critic is a hard gate on manifest quality. Requires a task brief as input (`--brief` or `--project`). Auto-discovers `architecture/overview.md` when the optional `ultra-cc-architect` plugin is installed and cross-references its `cc_features_proposed` against exploration findings.
 - **`/ultraexecute-local`** — Execute the contract disciplined. Manifest-based verification, independent Phase 7.5 audit from git log + filesystem (ignores agent bookkeeping), Phase 7.6 bounded recovery dispatch for missing steps. Step 0 pre-flight catches sandbox push-denial before any work. `--validate` mode offers a fast schema-only sanity-check between planning and execution.
-- **`/ultra-skill-author-local`** *(authoring, v2.3, skill-factory Fase 1)* — Generate one `cc-architect-catalog` draft skill from a curated local source file with IP-hygiene enforcement. Sequential pipeline: `concept-extractor` → `skill-drafter` → `ip-hygiene-checker`. Drafts land in `skills/cc-architect-catalog/.drafts/` for manual review and `mv` promotion. Pure-Node n-gram containment scorer (`scripts/ngram-overlap.mjs`) enforces verdict bands; rejected drafts are deleted. Channel 2 of the skill-factory strategy — manual, one-source-at-a-time, no automation.
 
-All artifacts land in one project directory: `.claude/projects/{YYYY-MM-DD}-{slug}/` contains `brief.md`, `research/NN-*.md`, `architecture/` *(v2.2)*, `plan.md`, `sessions/`, and `progress.json`. `--project <dir>` works across `/ultraresearch-local`, `/ultra-cc-architect-local`, `/ultraplan-local`, and `/ultraexecute-local`.
+All artifacts land in one project directory: `.claude/projects/{YYYY-MM-DD}-{slug}/` contains `brief.md`, `research/NN-*.md`, `plan.md`, `sessions/`, and `progress.json`. `--project <dir>` works across `/ultraresearch-local`, `/ultraplan-local`, and `/ultraexecute-local`.
 
-v2.4.0 (breaking, default behavior) removes background mode from `/ultraplan-local`, `/ultraresearch-local`, `/ultra-cc-architect-local`, and `/ultrabrief-local` auto-mode. The commands now run foreground in the main context because the harness does not expose the Agent tool to sub-agents — background orchestrators silently degraded the swarm to inline reasoning without external research tools. The `--fg` flag is preserved as a no-op alias for backward compatibility. Source: github.com/anthropics/claude-code/issues/19077.
+v3.0.0 extracts the Claude-Code-specific architecture phase to a separate plugin (`ultra-cc-architect`, see below). The planning pipeline now stays technology-agnostic; CC-feature matching becomes opt-in. The plan command still auto-discovers `architecture/overview.md` if the new plugin is installed — the contract is filesystem-level, not code-level. Non-breaking for users of brief/research/plan/execute. See `plugins/ultraplan-local/CHANGELOG.md` for migration steps.
 
-v2.3 (non-breaking) ships the skill-factory Fase 1 MVP: `/ultra-skill-author-local` plus four supporting agents (1 opus orchestrator + 3 sonnet workers) and `scripts/ngram-overlap.mjs` (pure Node stdlib, word-5-gram containment + longest-run secondary signal, calibrated against three source/draft fixture pairs). Catalog growth is now tractable without touching the architect's hallucination gate. Non-goals stay explicit: no automation, no batch, no decision-layer skills, no remote sources — manual `mv` from `.drafts/` to catalog root is the promotion mechanism. v2.3.1 adds a qualified-slug convention (`<cc_feature>[-<qualifier>]-<layer>.md`) so one feature can host multiple named patterns at different abstraction levels without displacing the baseline — resolved a collision surfaced in v2.3.0 dogfood. v2.3.2 closes the UX gap: `skill-drafter` now reads `{catalog_root}/<slug>.md` before writing and surfaces a collision warning in its confirmation output with a suggested qualified slug, so users see the overwrite risk before running `mv` — not after.
-
-v2.2 (non-breaking) adds the optional `/ultra-cc-architect-local` step between research and planning. The architect phase is backed by a versioned catalog skill (`cc-architect-catalog`) with 10 seed entries across three layers (reference, pattern, decision). Gaps are captured as issue-ready drafts so the catalog grows from real usage rather than speculation. `/ultraplan-local` auto-discovers the architecture note — existing pipelines keep working unchanged.
+v2.4.0 (breaking, default behavior) removes background mode. The commands now run foreground in the main context because the harness does not expose the Agent tool to sub-agents — background orchestrators silently degraded the swarm to inline reasoning without external research tools. The `--fg` flag is preserved as a no-op alias for backward compatibility. Source: github.com/anthropics/claude-code/issues/19077.
 
 v2.1 (non-breaking) replaced the hardcoded Q1–Q8 interview with a dynamic, quality-gated loop; `brief-reviewer` emits machine-readable per-dimension JSON scores so `/ultrabrief-local` can use it as an internal stop-gate. v2.0 (breaking) extracted the interview from planning: briefs are reviewable artifacts that downstream agents (`brief-reviewer`, `plan-critic`, `scope-guardian`) validate independently. `/ultraplan-local` requires `--brief` or `--project`. See `plugins/ultraplan-local/MIGRATION.md`.
 
@@ -98,14 +94,35 @@ v1.7 self-verifying chain (preserved): a step may not be marked `completed` unle
 
 Defense-in-depth security: plugin hooks block destructive commands and sensitive path writes, prompt-level denylist works in headless sessions, pre-execution plan scan catches dangerous commands before they run, scoped `--allowedTools` replaces `--dangerously-skip-permissions` in parallel sessions.
 
-Modes: default, brief-driven, project-scoped, research-enriched, architect (optional), foreground, quick, decompose, export
+Modes: default, brief-driven, project-scoped, research-enriched, foreground, quick, decompose, export
 
-23 specialized agents · 5 commands · 1 skill (CC-feature catalog, 10 seeds) · 2 security hooks · No cloud dependency
+19 specialized agents · 4 commands · 2 security hooks · No cloud dependency
 
 → [Full documentation](plugins/ultraplan-local/README.md) · [Migration guide](plugins/ultraplan-local/MIGRATION.md)
 
 ---
 
+### [Ultra CC Architect](plugins/ultra-cc-architect/) `v0.1.0` `🚧 pre-release`
+
+Match a task brief and research against available Claude Code features, with brief-anchored rationale and explicit coverage gaps. Extracted from `ultraplan-local` v2.4.0 in 2026-04-30.
+
+Two commands, both Claude-Code-specific:
+
+- **`/ultra-cc-architect-local`** — Reads `brief.md` + `research/*.md` (typically produced by `ultraplan-local`), consults the seeded `cc-architect-catalog` skill (hooks, subagents, skills, output styles, MCP, plan mode, worktrees, background agents), and produces `architecture/overview.md` with brief-anchored rationale plus `architecture/gaps.md` with issue-ready drafts for missing catalog entries. Hallucination gate (enforced by `architecture-critic`) blocks proposals for features not covered by the catalog.
+- **`/ultra-skill-author-local`** *(skill-factory Fase 1)* — Generates one `cc-architect-catalog` draft skill from a curated local source file with IP-hygiene enforcement. Sequential pipeline: `concept-extractor` → `skill-drafter` → `ip-hygiene-checker`. Drafts land in `skills/cc-architect-catalog/.drafts/` for manual review and `mv` promotion. Pure-Node n-gram containment scorer (`scripts/ngram-overlap.mjs`) enforces verdict bands; rejected drafts are deleted.
+
+The plugin sits between `/ultraresearch-local` and `/ultraplan-local` in the typical workflow. `ultraplan-local` v3.0.0+ auto-discovers `architecture/overview.md` when present — install both plugins to keep the full pipeline (brief → research → architect → plan → execute) working.
+
+**Pre-release because:** catalog is thin (11 seed skills across 8 features), decision-layer is intentionally empty, skill-factory has only Fase 1 (Fase 2/3 unbuilt), and `feature-matcher` falls back to a hardcoded list when the catalog is sparse. v1.0 ships when the catalog is dense enough that the fallback list can be removed.
+
+Slug convention: `<cc_feature>[-<qualifier>]-<layer>.md`. Unqualified slugs are the canonical baseline per `(feature, layer)` pair; qualified slugs cover specific sub-patterns. `feature-matcher` prefers the unqualified baseline unless the brief justifies a variant. Slug collisions with approved skills are a hard error. `skill-drafter` warns before overwrite.
+
+8 specialized agents · 2 commands · 1 skill (CC-feature catalog, 11 seeds) · 1 IP-hygiene script
+
+→ [Full documentation](plugins/ultra-cc-architect/README.md)
+
+---
+
 ### [AI Psychosis](plugins/ai-psychosis/) `v1.0.0`
 
 Meta-awareness tools that counteract sycophancy, reinforcement loops, and compulsive AI interaction patterns.