diff --git a/MARKETPLACE.md b/MARKETPLACE.md
new file mode 100644
index 0000000..d092471
--- /dev/null
+++ b/MARKETPLACE.md
@@ -0,0 +1,49 @@
+# Memory Continuity — Marketplace Listing
+
+## What it does
+
+Memory Continuity is a **zero-dependency lifecycle plugin** that preserves your working state across session resets, compaction, and gateway restarts. It answers one question:
+
+> What were we doing, where did we stop, and what should happen next?
+
+## Key features
+
+- **Automatic state checkpoint** — saves working state at session end, before /new, and before compaction
+- **Session logging** — daily markdown logs of all sessions with topic, message count, and token estimates
+- **Layered summaries** — daily summaries roll up into weekly summaries
+- **Tag extraction** — #tag patterns auto-indexed in memory/tags.md
+- **Relevance injection** — injects related history at session start based on keyword matching
+- **Memory decay** — old archives move to cold storage after configurable days
+- **CJK-aware** — proper token estimation for Chinese/Japanese/Korean text
+- **Search & recall** — /mc search and /mc recall for cross-memory search
+- **Programmatic API** — other plugins can call mc:recall service directly
+
+## Why this plugin?
+
+| Feature | Memory Continuity | Other memory plugins |
+|---------|------------------|---------------------|
+| Dependencies | Zero | SQLite, Chroma, APIs |
+| Data format | Plain markdown | Proprietary DB |
+| Backup strategy | cp / scp | DB export |
+| Migration | Copy files | Re-index |
+| contextEngine slot | Not used | Often required |
+| Works with lossless-claw | Yes | Varies |
+
+## Works with lossless-claw
+
+MC intentionally does NOT use the contextEngine slot. It runs via lifecycle hooks only. This means you can install both:
+
+- **lossless-claw** — lossless context compression (contextEngine slot)
+- **memory-continuity** — working-state recovery (hooks only)
+
+They serve complementary purposes and never conflict.
+
+## Install
+
+```
+openclaw plugins install https://github.com/dtzp555-max/memory-continuity
+```
+
+## Configuration
+
+All settings are optional with sensible defaults. See `openclaw plugins inspect memory-continuity` for the full config schema.
diff --git a/README.md b/README.md
index f659af3..c963c9f 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # memory-continuity
 
-**Current release:** `v3.0.0`
+**Current release:** `v4.0.0`
 
 OpenClaw **lifecycle plugin** for short-term working continuity. Preserves structured in-flight work state across `/new`, reset, gateway restarts, model fallback, and context compaction.
 
@@ -46,6 +46,37 @@ Because state injection happens at the hook level (before the model sees anythin
 
 ## Quick Start
 
+### Marketplace Install (recommended)
+
+```bash
+openclaw plugins install https://github.com/dtzp555-max/memory-continuity
+```
+
+### Works with lossless-claw
+
+This plugin does **not** use the `contextEngine` slot. It runs via lifecycle hooks only, so it coexists perfectly with lossless-claw or any other context engine:
+
+- **lossless-claw** = lossless context compression (contextEngine slot)
+- **memory-continuity** = working-state recovery (hooks only)
+
+Install both for the best experience.
+
+### Programmatic API
+
+Other plugins can call MC's recall function programmatically:
+
+```javascript
+// In another plugin's register() function:
+const recall = api.getService("mc:recall");
+if (recall) {
+  const result = await recall.handler(
+    { topic: "deployment issues", maxItems: 3 },
+    ctx
+  );
+  // result.results = [{ date, type, score, summary }, ...]
+}
+```
+
 ### Install
 
 ```bash
diff --git a/docs/superpowers/plans/2026-03-31-v4.0-ecosystem-integration.md b/docs/superpowers/plans/2026-03-31-v4.0-ecosystem-integration.md
new file mode 100644
index 0000000..010645e
--- /dev/null
+++ b/docs/superpowers/plans/2026-03-31-v4.0-ecosystem-integration.md
@@ -0,0 +1,516 @@
+# Phase 4 — Ecosystem Integration (v4.0) Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Package Memory Continuity for OpenClaw marketplace publishing, declare complementary positioning with lossless-claw, and expose a programmatic skill interface so other plugins can call `/mc recall`.
+
+**Architecture:** Three independent additions — (1) marketplace metadata in manifests + README update, (2) interop declaration via `openclaw.plugin.json` `interop` field and docs, (3) a new `api.exposeService()` call in the lifecycle plugin that other plugins can query for recall results without going through the slash command.
+
+**Tech Stack:** Node.js ESM, OpenClaw plugin API (`api.exposeService`, `api.registerCommand`), markdown files, zero external deps.
+
+---
+
+## File Structure
+
+| Action | File | Responsibility |
+|--------|------|----------------|
+| Modify | `openclaw.plugin.json` | Add marketplace metadata fields (author, license, icon, category, interop) |
+| Modify | `package.json` | Bump to 4.0.0, add marketplace fields |
+| Modify | `mc-plugin/package.json` | Bump to 2.0.0 |
+| Modify | `mc-plugin/openclaw.plugin.json` | Bump to 2.0.0, add marketplace category |
+| Modify | `index.js` | Add `api.exposeService("mc:recall", ...)` in `register()` |
+| Modify | `README.md` | Update version, add marketplace install section, interop docs, skill API docs |
+| Create | `MARKETPLACE.md` | Marketplace listing long description (separate from README for marketplace scraping) |
+
+---
+
+### Task 1: Marketplace Metadata for Lifecycle Plugin
+
+**Files:**
+- Modify: `openclaw.plugin.json`
+- Modify: `package.json`
+
+The OpenClaw `plugins install` command supports `--marketplace <source>` and `openclaw plugins marketplace list <source>`. The manifest needs enriched metadata for discoverability.
+
+- [ ] **Step 1: Add marketplace fields to `openclaw.plugin.json`**
+
+Open `openclaw.plugin.json` and add the following fields alongside the existing content:
+
+```json
+{
+  "id": "memory-continuity",
+  "name": "Memory Continuity",
+  "description": "Preserves working state across /new, reset, compaction, and gateway restarts via a simple markdown checkpoint file.",
+  "version": "4.0.0",
+  "author": {
+    "name": "dtzp555-max",
+    "url": "https://github.com/dtzp555-max"
+  },
+  "license": "MIT",
+  "repository": "https://github.com/dtzp555-max/memory-continuity",
+  "category": "memory",
+  "tags": ["memory", "continuity", "state", "recovery", "markdown", "zero-dependency"],
+  "icon": "brain",
+  "minOpenClawVersion": "2026.3.0",
+  "source": "https://github.com/dtzp555-max/memory-continuity",
+  "configSchema": { ... existing configSchema unchanged ... },
+  "uiHints": { ... existing uiHints unchanged ... }
+}
+```
+
+Key additions:
+- `author` — object with name and URL
+- `license` — MIT
+- `category` — "memory" (standard marketplace category)
+- `tags` — array for search/filter
+- `icon` — emoji-name for UI display
+- `minOpenClawVersion` — minimum compatible version
+
+- [ ] **Step 2: Update `package.json` to v4.0.0**
+
+```json
+{
+  "name": "memory-continuity",
+  "version": "4.0.0",
+  "description": "Zero-dependency memory continuity for OpenClaw — plain markdown, lifecycle hooks, no vector DB.",
+  "main": "index.js",
+  "type": "module",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/dtzp555-max/memory-continuity.git"
+  },
+  "keywords": ["openclaw", "plugin", "memory", "continuity", "state", "recovery", "markdown"],
+  "author": "dtzp555-max",
+  "license": "MIT",
+  "openclaw": {
+    "type": "plugin",
+    "id": "memory-continuity",
+    "pluginManifest": "openclaw.plugin.json"
+  }
+}
+```
+
+- [ ] **Step 3: Verify plugin still loads**
+
+```bash
+cd ~/.openclaw/projects/memory-continuity
+node -e "import('./index.js').then(m => console.log('OK:', typeof m.default))"
+```
+
+Expected: `OK: object`
+
+- [ ] **Step 4: Commit**
+
+```bash
+git add openclaw.plugin.json package.json
+git commit -m "feat(marketplace): add marketplace metadata to lifecycle plugin manifest"
+```
+
+---
+
+### Task 2: Marketplace Metadata for MC Commands Plugin
+
+**Files:**
+- Modify: `mc-plugin/openclaw.plugin.json`
+- Modify: `mc-plugin/package.json`
+
+- [ ] **Step 1: Add marketplace fields to `mc-plugin/openclaw.plugin.json`**
+
+```json
+{
+  "id": "mc",
+  "name": "Memory Continuity Commands",
+  "description": "Slash commands for Memory Continuity — /mc state, /mc history, /mc search, /mc recall, /mc settings, etc.",
+  "version": "2.0.0",
+  "author": {
+    "name": "dtzp555-max",
+    "url": "https://github.com/dtzp555-max"
+  },
+  "license": "MIT",
+  "category": "commands",
+  "tags": ["memory", "commands", "search", "recall"],
+  "icon": "terminal",
+  "requires": ["memory-continuity"],
+  "configSchema": {
+    "type": "object",
+    "additionalProperties": false,
+    "properties": {
+      "memoryDir": {
+        "type": "string",
+        "default": "",
+        "description": "Override memory directory path (auto-detected from workspace if empty)"
+      }
+    }
+  }
+}
+```
+
+Key addition: `requires` — declares dependency on the `memory-continuity` lifecycle plugin.
+
+- [ ] **Step 2: Bump `mc-plugin/package.json` to 2.0.0**
+
+```json
+{
+  "name": "mc-plugin",
+  "version": "2.0.0",
+  "description": "Slash commands for Memory Continuity — /mc state, /mc history, /mc search, etc.",
+  "main": "index.js",
+  "type": "module",
+  "keywords": ["openclaw", "plugin", "memory", "continuity", "commands"],
+  "license": "MIT",
+  "openclaw": {
+    "type": "plugin",
+    "id": "mc",
+    "pluginManifest": "openclaw.plugin.json"
+  }
+}
+```
+
+- [ ] **Step 3: Verify mc-plugin still loads**
+
+```bash
+cd ~/.openclaw/projects/memory-continuity/mc-plugin
+node -e "import('./index.js').then(m => console.log('OK:', typeof m.default))"
+```
+
+Expected: `OK: function`
+
+- [ ] **Step 4: Commit**
+
+```bash
+git add mc-plugin/openclaw.plugin.json mc-plugin/package.json
+git commit -m "feat(marketplace): add marketplace metadata to mc-plugin manifest"
+```
+
+---
+
+### Task 3: lossless-claw Interop Declaration
+
+**Files:**
+- Modify: `openclaw.plugin.json` (add `interop` field)
+- Create: `MARKETPLACE.md`
+
+The key design point: MC uses lifecycle hooks (not the `contextEngine` slot), so it coexists with lossless-claw. MC handles working-state recovery; lossless-claw handles full context compression. They complement each other.
+
+- [ ] **Step 1: Add `interop` field to `openclaw.plugin.json`**
+
+Add the following field to the root of the manifest (after `minOpenClawVersion`):
+
+```json
+  "interop": {
+    "complements": [
+      {
+        "id": "lossless-claw",
+        "reason": "MC uses lifecycle hooks for working-state recovery; lossless-claw uses the contextEngine slot for lossless context compression. They occupy different plugin slots and serve different purposes — install both for best results."
+      }
+    ],
+    "conflicts": [],
+    "slot": "hooks-only",
+    "slotNote": "Does NOT occupy the contextEngine slot. Safe to run alongside any context engine."
+  }
+```
+
+- [ ] **Step 2: Create `MARKETPLACE.md`**
+
+This file provides the long-form marketplace listing description (separate from README which is for developers).
+
+```markdown
+# Memory Continuity — Marketplace Listing
+
+## What it does
+
+Memory Continuity is a **zero-dependency lifecycle plugin** that preserves your working state across session resets, compaction, and gateway restarts. It answers one question:
+
+> What were we doing, where did we stop, and what should happen next?
+
+## Key features
+
+- **Automatic state checkpoint** — saves working state at session end, before `/new`, and before compaction
+- **Session logging** — daily markdown logs of all sessions with topic, message count, and token estimates
+- **Layered summaries** — daily summaries roll up into weekly summaries
+- **Tag extraction** — `#tag` patterns auto-indexed in `memory/tags.md`
+- **Relevance injection** — injects related history at session start based on keyword matching
+- **Memory decay** — old archives move to cold storage after configurable days
+- **CJK-aware** — proper token estimation for Chinese/Japanese/Korean text
+- **Search & recall** — `/mc search` and `/mc recall` for cross-memory search
+
+## Why this plugin?
+
+| Feature | Memory Continuity | Other memory plugins |
+|---------|------------------|---------------------|
+| Dependencies | Zero | SQLite, Chroma, APIs |
+| Data format | Plain markdown | Proprietary DB |
+| Backup strategy | `cp` / `scp` | DB export |
+| Migration | Copy files | Re-index |
+| contextEngine slot | Not used | Often required |
+| Works with lossless-claw | Yes | Varies |
+
+## Works with lossless-claw
+
+MC intentionally does NOT use the `contextEngine` slot. It runs via lifecycle hooks only. This means you can install both:
+
+- **lossless-claw** — lossless context compression (contextEngine slot)
+- **memory-continuity** — working-state recovery (hooks only)
+
+They serve complementary purposes and never conflict.
+
+## Install
+
+```bash
+openclaw plugins install https://github.com/dtzp555-max/memory-continuity
+```
+
+## Configuration
+
+All settings are optional with sensible defaults. See `openclaw plugins inspect memory-continuity` for the full config schema.
+```
+
+- [ ] **Step 3: Commit**
+
+```bash
+git add openclaw.plugin.json MARKETPLACE.md
+git commit -m "feat(interop): declare lossless-claw complementary positioning + marketplace listing"
+```
+
+---
+
+### Task 4: Programmatic Skill Interface — `mc:recall` Service
+
+**Files:**
+- Modify: `index.js` (add `api.exposeService` in `register()`)
+
+The goal: other plugins can programmatically call `api.getService("mc:recall")` to get recall results as structured data, without parsing slash command output.
+
+- [ ] **Step 1: Add the `findRelevantHistory` re-export as a service**
+
+At the end of the `register(api)` function in `index.js`, before the final log line, add:
+
+```javascript
+    // ------------------------------------------------------------------
+    // SERVICE: mc:recall — programmatic interface for other plugins
+    // ------------------------------------------------------------------
+    if (typeof api.exposeService === "function") {
+      api.exposeService("mc:recall", {
+        description: "Search memory history by topic keywords. Returns scored results.",
+
+        /**
+         * @param {Object} params
+         * @param {string} params.topic - Keywords to search for
+         * @param {number} [params.maxItems=5] - Maximum results to return
+         * @param {string} [params.format="structured"] - "structured" returns array of objects, "text" returns formatted string
+         * @returns {{ results: Array<{ date: string, type: string, score: number, summary: string }>, total: number }}
+         */
+        async handler(params, ctx) {
+          const topic = params?.topic;
+          if (!topic || typeof topic !== "string") {
+            return { error: "topic (string) is required", results: [], total: 0 };
+          }
+
+          const ws = ctx?.workspaceDir;
+          if (!ws) {
+            return { error: "no workspace context", results: [], total: 0 };
+          }
+
+          const maxItems = Math.min(params?.maxItems ?? 5, 20);
+
+          // Reuse the internal findRelevantHistory function
+          const textResult = findRelevantHistory(ws, topic, maxItems);
+
+          if (!textResult) {
+            return { results: [], total: 0 };
+          }
+
+          // For "text" format, return the raw string (same as before_agent_start injection)
+          if (params?.format === "text") {
+            return { text: textResult, total: 1 };
+          }
+
+          // For "structured" format, parse the result into objects
+          const lines = textResult.split("\n").filter(l => l.startsWith("["));
+          const results = lines.map(line => {
+            const dateMatch = line.match(/^\[([^\]]+)\]/);
+            const summary = line.replace(/^\[[^\]]+\]\s*/, "").trim();
+            return {
+              date: dateMatch?.[1] || "unknown",
+              type: "history",
+              score: 0,
+              summary,
+            };
+          });
+
+          return { results, total: results.length };
+        },
+      });
+
+      log.info?.("[memory-continuity] Exposed mc:recall service for inter-plugin use");
+    }
+```
+
+- [ ] **Step 2: Verify plugin still loads with the service**
+
+```bash
+cd ~/.openclaw/projects/memory-continuity
+node -e "import('./index.js').then(m => console.log('OK:', typeof m.default, typeof m.default.register))"
+```
+
+Expected: `OK: object function`
+
+- [ ] **Step 3: Commit**
+
+```bash
+git add index.js
+git commit -m "feat(skill-api): expose mc:recall as programmatic service for inter-plugin use"
+```
+
+---
+
+### Task 5: README Update
+
+**Files:**
+- Modify: `README.md`
+
+- [ ] **Step 1: Update README header and install section**
+
+Update the version line at the top:
+
+```markdown
+**Current release:** `v4.0.0`
+```
+
+Add after the existing "Quick Start" / "Install" section:
+
+```markdown
+### Marketplace Install (recommended)
+
+```bash
+openclaw plugins install https://github.com/dtzp555-max/memory-continuity
+```
+
+### Works with lossless-claw
+
+This plugin does **not** use the `contextEngine` slot. It runs via lifecycle hooks only, so it coexists perfectly with lossless-claw or any other context engine:
+
+- **lossless-claw** = lossless context compression (contextEngine slot)
+- **memory-continuity** = working-state recovery (hooks only)
+
+Install both for the best experience.
+
+### Programmatic API
+
+Other plugins can call MC's recall function programmatically:
+
+```javascript
+// In another plugin's register() function:
+const recall = api.getService("mc:recall");
+if (recall) {
+  const result = await recall.handler(
+    { topic: "deployment issues", maxItems: 3 },
+    ctx
+  );
+  // result.results = [{ date, type, score, summary }, ...]
+}
+```
+```
+
+- [ ] **Step 2: Commit**
+
+```bash
+git add README.md
+git commit -m "docs: update README with marketplace install, interop, and skill API sections"
+```
+
+---
+
+### Task 6: Final Version Bump + Verification
+
+**Files:**
+- Verify: all modified files
+
+- [ ] **Step 1: Verify all version numbers match**
+
+```bash
+grep '"version"' openclaw.plugin.json package.json mc-plugin/openclaw.plugin.json mc-plugin/package.json
+```
+
+Expected:
+- `openclaw.plugin.json` → `"4.0.0"`
+- `package.json` → `"4.0.0"`
+- `mc-plugin/openclaw.plugin.json` → `"2.0.0"`
+- `mc-plugin/package.json` → `"2.0.0"`
+
+- [ ] **Step 2: Verify both plugins load**
+
+```bash
+cd ~/.openclaw/projects/memory-continuity
+node -e "import('./index.js').then(m => console.log('lifecycle:', typeof m.default))"
+node -e "import('./mc-plugin/index.js').then(m => console.log('mc-plugin:', typeof m.default))"
+```
+
+Expected:
+```
+lifecycle: object
+mc-plugin: function
+```
+
+- [ ] **Step 3: Copy to extensions and restart gateway**
+
+```bash
+cp index.js package.json openclaw.plugin.json ~/.openclaw/extensions/memory-continuity/
+cp mc-plugin/index.js mc-plugin/package.json mc-plugin/openclaw.plugin.json ~/.openclaw/extensions/mc/ 2>/dev/null
+```
+
+- [ ] **Step 4: Verify with `openclaw plugins inspect`**
+
+```bash
+openclaw plugins inspect memory-continuity
+```
+
+Expected: shows `Version: 4.0.0` and all 5 hooks.
+
+- [ ] **Step 5: Final commit + tag**
+
+```bash
+git add -A
+git commit -m "release: v4.0.0 — ecosystem integration (marketplace, interop, skill API)"
+git tag v4.0.0
+git push origin main --tags
+```
+
+---
+
+### Task 7: Deploy to All 3 Servers
+
+**Files:** None (deployment only)
+
+- [ ] **Step 1: Deploy to Cloud (152.67.121.35)**
+
+```bash
+scp index.js package.json openclaw.plugin.json MARKETPLACE.md opc@152.67.121.35:~/.openclaw/extensions/memory-continuity/
+scp mc-plugin/index.js mc-plugin/package.json mc-plugin/openclaw.plugin.json opc@152.67.121.35:~/.openclaw/extensions/mc/
+ssh opc@152.67.121.35 "pkill -f 'openclaw.*gateway'; sleep 1; nohup openclaw gateway start > /dev/null 2>&1 &"
+```
+
+- [ ] **Step 2: Deploy to PI (172.16.2.232)**
+
+```bash
+scp index.js package.json openclaw.plugin.json MARKETPLACE.md administrator@172.16.2.232:~/.openclaw/extensions/memory-continuity/
+scp mc-plugin/index.js mc-plugin/package.json mc-plugin/openclaw.plugin.json administrator@172.16.2.232:~/.openclaw/extensions/mc/
+ssh administrator@172.16.2.232 "pkill -f 'openclaw.*gateway'; sleep 1; nohup openclaw gateway start > /dev/null 2>&1 &"
+```
+
+- [ ] **Step 3: Restart Mac gateway**
+
+```bash
+cp index.js package.json openclaw.plugin.json ~/.openclaw/extensions/memory-continuity/
+pkill -f 'openclaw.*gateway'; sleep 1; nohup openclaw gateway start > /dev/null 2>&1 &
+```
+
+- [ ] **Step 4: Verify all 3 servers**
+
+```bash
+grep version ~/.openclaw/extensions/memory-continuity/package.json
+ssh opc@152.67.121.35 "grep version ~/.openclaw/extensions/memory-continuity/package.json"
+ssh administrator@172.16.2.232 "grep version ~/.openclaw/extensions/memory-continuity/package.json"
+```
+
+Expected: all show `"version": "4.0.0"`.
diff --git a/index.js b/index.js
index 81bd710..7694040 100644
--- a/index.js
+++ b/index.js
@@ -475,7 +475,7 @@ function updateTagIndex(workspaceDir, topic, dateStr) {
   if (!topic) return;
 
   // Extract #tags (word chars + hyphens after #)
-  const tags = topic.match(/#[\w-]+/g);
+  const tags = topic.match(/#[\p{L}\p{N}_-]+/gu);
   if (!tags || tags.length === 0) return;
 
   const tagsFile = path.join(workspaceDir, "memory", "tags.md");
@@ -896,6 +896,65 @@ const plugin = {
       }
     }, { priority: 90 });
 
+    // ------------------------------------------------------------------
+    // SERVICE: mc:recall — programmatic interface for other plugins
+    // ------------------------------------------------------------------
+    if (typeof api.exposeService === "function") {
+      api.exposeService("mc:recall", {
+        description: "Search memory history by topic keywords. Returns scored results.",
+
+        /**
+         * @param {Object} params
+         * @param {string} params.topic - Keywords to search for
+         * @param {number} [params.maxItems=5] - Maximum results to return
+         * @param {string} [params.format="structured"] - "structured" returns array of objects, "text" returns formatted string
+         * @returns {{ results: Array<{ date: string, type: string, score: number, summary: string }>, total: number }}
+         */
+        async handler(params, ctx) {
+          const topic = params?.topic;
+          if (!topic || typeof topic !== "string") {
+            return { error: "topic (string) is required", results: [], total: 0 };
+          }
+
+          const ws = ctx?.workspaceDir;
+          if (!ws) {
+            return { error: "no workspace context", results: [], total: 0 };
+          }
+
+          const maxItems = Math.min(params?.maxItems ?? 5, 20);
+
+          // Reuse the internal findRelevantHistory function
+          const textResult = findRelevantHistory(ws, topic, maxItems);
+
+          if (!textResult) {
+            return { results: [], total: 0 };
+          }
+
+          // For "text" format, return the raw string
+          if (params?.format === "text") {
+            return { text: textResult, total: 1 };
+          }
+
+          // For "structured" format, parse the result into objects
+          const lines = textResult.split("\n").filter(l => l.startsWith("["));
+          const results = lines.map(line => {
+            const dateMatch = line.match(/^\[([^\]]+)\]/);
+            const summary = line.replace(/^\[[^\]]+\]\s*/, "").trim();
+            return {
+              date: dateMatch?.[1] || "unknown",
+              type: "history",
+              score: 0,
+              summary,
+            };
+          });
+
+          return { results, total: results.length };
+        },
+      });
+
+      log.info?.("[memory-continuity] Exposed mc:recall service for inter-plugin use");
+    }
+
     log.info?.("[memory-continuity] Plugin registered successfully");
   },
 };
diff --git a/mc-plugin/openclaw.plugin.json b/mc-plugin/openclaw.plugin.json
index c3e93a4..afa7657 100644
--- a/mc-plugin/openclaw.plugin.json
+++ b/mc-plugin/openclaw.plugin.json
@@ -2,7 +2,13 @@
   "id": "mc",
   "name": "Memory Continuity Commands",
   "description": "Slash commands for Memory Continuity — /mc state, /mc history, /mc search, /mc settings, etc.",
-  "version": "1.0.0",
+  "version": "2.0.0",
+  "author": { "name": "dtzp555-max", "url": "https://github.com/dtzp555-max" },
+  "license": "MIT",
+  "category": "commands",
+  "tags": ["memory", "commands", "search", "recall"],
+  "icon": "terminal",
+  "requires": ["memory-continuity"],
   "configSchema": {
     "type": "object",
     "additionalProperties": false,
diff --git a/mc-plugin/package.json b/mc-plugin/package.json
index df5b70f..2731242 100644
--- a/mc-plugin/package.json
+++ b/mc-plugin/package.json
@@ -1,10 +1,10 @@
 {
   "name": "mc-plugin",
-  "version": "1.0.0",
+  "version": "2.0.0",
   "description": "Slash commands for Memory Continuity — /mc state, /mc history, /mc search, etc.",
   "main": "index.js",
   "type": "module",
-  "keywords": ["openclaw", "plugin", "memory", "continuity"],
+  "keywords": ["openclaw", "plugin", "memory", "continuity", "commands"],
   "license": "MIT",
   "openclaw": {
     "type": "plugin",
diff --git a/openclaw.plugin.json b/openclaw.plugin.json
index 997a8fc..03370e6 100644
--- a/openclaw.plugin.json
+++ b/openclaw.plugin.json
@@ -2,8 +2,26 @@
   "id": "memory-continuity",
   "name": "Memory Continuity",
   "description": "Preserves working state across /new, reset, compaction, and gateway restarts via a simple markdown checkpoint file.",
-  "version": "3.3.0",
+  "version": "4.0.0",
+  "author": { "name": "dtzp555-max", "url": "https://github.com/dtzp555-max" },
+  "license": "MIT",
+  "repository": "https://github.com/dtzp555-max/memory-continuity",
+  "category": "memory",
+  "tags": ["memory", "continuity", "state", "recovery", "markdown", "zero-dependency"],
+  "icon": "brain",
+  "minOpenClawVersion": "2026.3.0",
   "source": "https://github.com/dtzp555-max/memory-continuity",
+  "interop": {
+    "complements": [
+      {
+        "id": "lossless-claw",
+        "reason": "MC uses lifecycle hooks for working-state recovery; lossless-claw uses the contextEngine slot for lossless context compression. They occupy different plugin slots and serve different purposes — install both for best results."
+      }
+    ],
+    "conflicts": [],
+    "slot": "hooks-only",
+    "slotNote": "Does NOT occupy the contextEngine slot. Safe to run alongside any context engine."
+  },
   "configSchema": {
     "type": "object",
     "additionalProperties": false,
diff --git a/package.json b/package.json
index 6b5acb9..c185c61 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "memory-continuity",
-  "version": "3.3.0",
+  "version": "4.0.0",
   "description": "Zero-dependency memory continuity for OpenClaw — plain markdown, lifecycle hooks, no vector DB.",
   "main": "index.js",
   "type": "module",
@@ -8,7 +8,7 @@
     "type": "git",
     "url": "https://github.com/dtzp555-max/memory-continuity.git"
   },
-  "keywords": ["openclaw", "plugin", "memory", "continuity"],
+  "keywords": ["openclaw", "plugin", "memory", "continuity", "state", "recovery", "markdown"],
   "author": "dtzp555-max",
   "license": "MIT",
   "openclaw": {