diff --git a/package.json b/package.json
index 854351c6c1..d35be29dc8 100644
--- a/package.json
+++ b/package.json
@@ -23,37 +23,37 @@
   "version": "1.0.0",
   "license": "MIT",
   "devDependencies": {
-    "@octokit/rest": "^17.1.3",
+    "@octokit/rest": "^17.3.0",
     "@types/cross-spawn": "^6.0.1",
     "@types/fs-extra": "^8.1.0",
-    "@types/jest": "^25.1.4",
-    "@types/node": "^13.9.1",
+    "@types/jest": "^25.2.1",
+    "@types/node": "^13.13.0",
     "@types/semver": "^7.1.0",
-    "@typescript-eslint/eslint-plugin": "^2.25.0",
-    "@typescript-eslint/parser": "^2.25.0",
+    "@typescript-eslint/eslint-plugin": "^2.28.0",
+    "@typescript-eslint/parser": "^2.28.0",
     "cac": "^6.5.8",
-    "cross-spawn": "^7.0.1",
+    "cross-spawn": "^7.0.2",
     "del": "^5.1.0",
     "eslint": "^6.8.0",
     "eslint-config-standard": "^14.1.1",
-    "eslint-plugin-import": "^2.20.1",
+    "eslint-plugin-import": "^2.20.2",
     "eslint-plugin-jest": "^23.8.2",
-    "eslint-plugin-node": "^11.0.0",
+    "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-promise": "^4.2.1",
     "eslint-plugin-standard": "^4.0.1",
     "express": "^4.17.1",
     "fs-extra": "^9.0.0",
     "globby": "^11.0.0",
-    "jest": "^25.2.1",
+    "jest": "^25.3.0",
     "kleur": "^3.0.3",
     "latest-version": "^5.1.0",
     "open": "^7.0.3",
     "ora": "^4.0.3",
     "p-map": "^4.0.0",
     "prompts": "^2.3.2",
-    "semver": "^7.1.3",
-    "ts-jest": "^25.2.1",
-    "ts-node": "^8.8.1",
+    "semver": "^7.3.2",
+    "ts-jest": "^25.4.0",
+    "ts-node": "^8.8.2",
     "typescript": "^3.8.3"
   }
 }
diff --git a/packages/database-level/package.json b/packages/database-level/package.json
index 5d1d3d5d0b..24e5f42daa 100644
--- a/packages/database-level/package.json
+++ b/packages/database-level/package.json
@@ -1,7 +1,7 @@
 {
   "name": "koishi-database-level",
   "description": "Leveldb support for Koishi",
-  "version": "1.1.7",
+  "version": "1.2.0",
   "main": "dist/index.js",
   "files": [
     "dist"
@@ -33,17 +33,17 @@
     "leveldb"
   ],
   "devDependencies": {
-    "koishi-test-utils": "^3.2.2"
+    "koishi-test-utils": "^3.3.0"
   },
   "peerDependencies": {
-    "koishi-core": "^1.11.2"
+    "koishi-core": "^1.12.0"
   },
   "dependencies": {
     "@types/leveldown": "^4.0.2",
     "@types/levelup": "^4.3.0",
     "koishi-utils": "^1.0.4",
-    "leveldown": "^5.5.1",
-    "levelup": "^4.3.2",
-    "subleveldown": "^4.1.4"
+    "leveldown": "^5.6.0",
+    "levelup": "^4.4.0",
+    "subleveldown": "^5.0.0"
   }
 }
diff --git a/packages/database-memory/package.json b/packages/database-memory/package.json
index 46a701858d..b288d92388 100644
--- a/packages/database-memory/package.json
+++ b/packages/database-memory/package.json
@@ -1,7 +1,7 @@
 {
   "name": "koishi-database-memory",
   "description": "An in-memory database implementation for Koishi",
-  "version": "1.1.7",
+  "version": "1.2.0",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "files": [
@@ -22,7 +22,7 @@
   },
   "homepage": "https://github.com/koishijs/koishi/tree/master/packages/database-memory#readme",
   "peerDependencies": {
-    "koishi-core": "^1.11.2"
+    "koishi-core": "^1.12.0"
   },
   "dependencies": {
     "koishi-utils": "^1.0.4"
diff --git a/packages/database-mysql/package.json b/packages/database-mysql/package.json
index a35faf8fc0..a3c12fbffe 100644
--- a/packages/database-mysql/package.json
+++ b/packages/database-mysql/package.json
@@ -1,7 +1,7 @@
 {
   "name": "koishi-database-mysql",
   "description": "MySQL support for Koishi",
-  "version": "1.1.7",
+  "version": "1.2.0",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "files": [
@@ -32,10 +32,10 @@
     "mysql"
   ],
   "devDependencies": {
-    "@types/mysql": "^2.15.9"
+    "@types/mysql": "^2.15.10"
   },
   "peerDependencies": {
-    "koishi-core": "^1.11.2"
+    "koishi-core": "^1.12.0"
   },
   "dependencies": {
     "koishi-utils": "^1.0.4",
diff --git a/packages/database-sqlite/package.json b/packages/database-sqlite/package.json
index c2e656c4f6..7e925875be 100644
--- a/packages/database-sqlite/package.json
+++ b/packages/database-sqlite/package.json
@@ -1,6 +1,6 @@
 {
   "name": "koishi-database-sqlite",
-  "version": "1.0.0-alpha.13",
+  "version": "1.0.0",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "files": [
@@ -22,10 +22,10 @@
   "homepage": "https://github.com/koishijs/koishi/tree/master/packages/database-sqlite#readme",
   "devDependencies": {
     "@types/sqlite3": "^3.1.6",
-    "koishi-test-utils": "^3.2.2"
+    "koishi-test-utils": "^3.3.0"
   },
   "peerDependencies": {
-    "koishi-core": "^1.11.2"
+    "koishi-core": "^1.12.0"
   },
   "dependencies": {
     "koishi-utils": "^1.0.4",
diff --git a/packages/koishi-cli/package.json b/packages/koishi-cli/package.json
index 611277b1b5..a55ab285d5 100644
--- a/packages/koishi-cli/package.json
+++ b/packages/koishi-cli/package.json
@@ -1,7 +1,7 @@
 {
   "name": "koishi",
   "description": "A QQ bot framework based on CQHTTP",
-  "version": "1.11.2",
+  "version": "1.12.0",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "files": [
@@ -38,9 +38,9 @@
     "cac": "^6.5.8",
     "js-yaml": "^3.13.1",
     "kleur": "^3.0.3",
-    "koishi-core": "^1.11.2",
-    "koishi-plugin-common": "^2.1.8",
-    "koishi-plugin-schedule": "^1.0.13",
+    "koishi-core": "^1.12.0",
+    "koishi-plugin-common": "^2.2.0",
+    "koishi-plugin-schedule": "^1.1.0",
     "koishi-utils": "^1.0.4",
     "prompts": "^2.3.2"
   }
diff --git a/packages/koishi-cli/src/worker.ts b/packages/koishi-cli/src/worker.ts
index af2c13d960..962341447e 100644
--- a/packages/koishi-cli/src/worker.ts
+++ b/packages/koishi-cli/src/worker.ts
@@ -4,7 +4,7 @@ import { capitalize } from 'koishi-utils'
 import { performance } from 'perf_hooks'
 import { cyan, yellow } from 'kleur'
 import { logger } from './utils'
-import { format, types } from 'util'
+import { format } from 'util'
 import { readFileSync } from 'fs'
 import { safeLoad } from 'js-yaml'
 
@@ -72,7 +72,7 @@ function loadEcosystem (type: string, name: string) {
     try {
       return require(name)
     } catch (error) {
-      if (error.code !== 'MODULE_NOT_FOUND') {
+      if (error.code !== 'MODULE_NOT_FOUND' || error.requireStack[0] !== __filename) {
         throw error
       }
     }
diff --git a/packages/koishi-core/package.json b/packages/koishi-core/package.json
index 93dc617791..c930c6c386 100644
--- a/packages/koishi-core/package.json
+++ b/packages/koishi-core/package.json
@@ -1,7 +1,7 @@
 {
   "name": "koishi-core",
   "description": "Core features for Koishi",
-  "version": "1.11.2",
+  "version": "1.12.0",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "files": [
@@ -33,15 +33,15 @@
   ],
   "devDependencies": {
     "@types/debug": "^4.1.5",
-    "@types/ws": "^7.2.3",
+    "@types/ws": "^7.2.4",
     "get-port": "^5.1.1",
-    "koishi-database-memory": "^1.1.7",
-    "koishi-test-utils": "^3.2.2"
+    "koishi-database-memory": "^1.2.0",
+    "koishi-test-utils": "^3.3.0"
   },
   "dependencies": {
     "axios": "^0.19.2",
     "debug": "^4.1.1",
-    "escape-string-regexp": "^2.0.0",
+    "escape-string-regexp": "^3.0.0",
     "koishi-utils": "^1.0.4",
     "leven": "^3.1.0",
     "ms": "^2.1.2",
diff --git a/packages/koishi-core/src/app.ts b/packages/koishi-core/src/app.ts
index 52facd7bc1..6128c80368 100644
--- a/packages/koishi-core/src/app.ts
+++ b/packages/koishi-core/src/app.ts
@@ -4,10 +4,10 @@ import { Sender } from './sender'
 import { Server, createServer, ServerType } from './server'
 import { Command, ShortcutConfig, ParsedCommandLine } from './command'
 import { Context, Middleware, NextFunction, ContextScope, Events, EventMap } from './context'
-import { GroupFlag, UserFlag, UserField, createDatabase, DatabaseConfig, GroupField } from './database'
+import { GroupFlag, UserFlag, UserField, createDatabase, DatabaseConfig, GroupField, createUser } from './database'
 import { showSuggestions } from './utils'
 import { Meta } from './meta'
-import { simplify, noop } from 'koishi-utils'
+import { simplify, noop, observe } from 'koishi-utils'
 import { errors, messages } from './messages'
 import { ParsedLine } from './parser'
 
@@ -444,7 +444,9 @@ export class App extends Context {
     const defaultAuthority = typeof this.options.defaultAuthority === 'function'
       ? this.options.defaultAuthority(meta)
       : this.options.defaultAuthority || 0
-    const user = await this.database.observeUser(meta.userId, defaultAuthority, Array.from(userFields))
+    const user = meta.anonymous
+      ? observe(createUser(meta.userId, defaultAuthority))
+      : await this.database.observeUser(meta.userId, defaultAuthority, Array.from(userFields))
     Object.defineProperty(meta, '$user', { value: user, writable: true })
     return user
   }
diff --git a/packages/koishi-core/src/meta.ts b/packages/koishi-core/src/meta.ts
index 8bdae80613..2f4d12f5d6 100644
--- a/packages/koishi-core/src/meta.ts
+++ b/packages/koishi-core/src/meta.ts
@@ -1,5 +1,6 @@
 import { User, Group } from './database'
 import { ParsedCommandLine } from './command'
+import { App } from './app'
 
 export type PostType = 'message' | 'notice' | 'request' | 'meta_event' | 'send'
 export type MessageType = 'private' | 'group' | 'discuss'
@@ -61,6 +62,7 @@ export interface Meta <T extends PostType = PostType> {
   $ctxType?: ContextType
 
   // other properties
+  $app?: App
   $argv?: ParsedCommandLine
   $parsed?: ParsedMessage
 
diff --git a/packages/koishi-core/src/parser.ts b/packages/koishi-core/src/parser.ts
index 0d3b207c6e..5e9c3154a8 100644
--- a/packages/koishi-core/src/parser.ts
+++ b/packages/koishi-core/src/parser.ts
@@ -109,9 +109,16 @@ interface ParsedArg0 {
   quoted: boolean
 }
 
+// eslint-disable-next-line quotes
+const quotes = `"'“”‘’`
+
+function parseRest (source: string) {
+  if (quotes.includes(source[0]) && quotes.includes(source[source.length - 1])) return source.slice(1, -1)
+  return source
+}
+
 function parseArg0 (source: string): ParsedArg0 {
-  const char0 = source[0]
-  if (char0 === '"' || char0 === "'" || char0 === '“' || char0 === '”') {
+  if (quotes.includes(source[0])) {
     const [content] = source.slice(1).split(/["'“”](?=\s|$)/, 1)
     return {
       quoted: true,
@@ -170,7 +177,7 @@ export function parseLine (source: string, argsDef: CommandArgument[], optsDef:
   while (source) {
     // long argument
     if (source[0] !== '-' && argsDef[args.length] && argsDef[args.length].noSegment) {
-      args.push(source)
+      args.push(parseRest(source))
       break
     }
 
@@ -184,7 +191,7 @@ export function parseLine (source: string, argsDef: CommandArgument[], optsDef:
       continue
     } else if (arg === '--') {
       // rest part
-      rest = arg0.rest
+      rest = parseRest(arg0.rest)
       break
     }
 
@@ -193,7 +200,7 @@ export function parseLine (source: string, argsDef: CommandArgument[], optsDef:
     for (; i < arg.length; ++i) {
       if (arg.charCodeAt(i) !== 45) break
     }
-    if (arg.slice(i, i + 3) === 'no-') {
+    if (arg.slice(i, i + 3) === 'no-' && !optsDef[arg.slice(i)]) {
       name = arg.slice(i + 3)
       handleOption(name, true, false)
       continue
diff --git a/packages/koishi-core/src/server.ts b/packages/koishi-core/src/server.ts
index ef9290340d..0c19bdc483 100644
--- a/packages/koishi-core/src/server.ts
+++ b/packages/koishi-core/src/server.ts
@@ -103,6 +103,7 @@ export abstract class Server {
     Object.defineProperty(meta, '$ctxType', { value: ctxType })
 
     const app = this.appMap[meta.selfId]
+    Object.defineProperty(meta, '$app', { value: app })
 
     // add context properties
     if (meta.postType === 'message') {
@@ -343,6 +344,7 @@ export class WsClient extends Server {
             this.version = camelCase(parsed.data)
             this.debug('connect to ws server:', this.app.options.server)
             resolve()
+          } else {
             this._listeners[parsed.echo]?.(parsed)
           }
         })
diff --git a/packages/koishi-utils/src/cqCode.ts b/packages/koishi-utils/src/cqCode.ts
index 0910d5ed1a..6f9704448d 100644
--- a/packages/koishi-utils/src/cqCode.ts
+++ b/packages/koishi-utils/src/cqCode.ts
@@ -1,4 +1,4 @@
-type CQCodeData = Record<string, string | number>
+type CQCodeData = Record<string, string | number | boolean>
 
 interface CQCode {
   type: string
@@ -25,7 +25,7 @@ namespace CQCode {
       .replace(/&amp;/g, '&')
   }
 
-  export function stringify (type: string, data: CQCodeData) {
+  export function stringify (type: string, data: CQCodeData = {}) {
     if (type === 'text') return '' + data.text
     let output = '[CQ:' + type
     for (const key in data) {
diff --git a/packages/plugin-common/package.json b/packages/plugin-common/package.json
index b73b3698a5..ada749a620 100644
--- a/packages/plugin-common/package.json
+++ b/packages/plugin-common/package.json
@@ -1,7 +1,7 @@
 {
   "name": "koishi-plugin-common",
   "description": "Common plugins for Koishi",
-  "version": "2.1.8",
+  "version": "2.2.0",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "author": "Shigma <1700011071@pku.edu.cn>",
@@ -28,11 +28,11 @@
     "plugin"
   ],
   "devDependencies": {
-    "koishi-database-memory": "^1.1.7",
-    "koishi-test-utils": "^3.2.2"
+    "koishi-database-memory": "^1.2.0",
+    "koishi-test-utils": "^3.3.0"
   },
   "dependencies": {
-    "koishi-core": "^1.11.2",
+    "koishi-core": "^1.12.0",
     "koishi-utils": "^1.0.4"
   }
 }
diff --git a/packages/plugin-common/src/contextify.ts b/packages/plugin-common/src/contextify.ts
index c9e50f0b2f..274ef1348d 100644
--- a/packages/plugin-common/src/contextify.ts
+++ b/packages/plugin-common/src/contextify.ts
@@ -47,6 +47,7 @@ export default function apply (ctx: Context) {
         }
       }
 
+      Object.defineProperty(newMeta, '$app', { value: ctx.app })
       Object.defineProperty(newMeta, '$user', { value: user, writable: true })
 
       delete newMeta.groupId
@@ -72,6 +73,14 @@ export default function apply (ctx: Context) {
         newMeta.subType = options.type || 'other'
       }
 
+      if (options.group) {
+        const info = await ctx.sender.getGroupMemberInfo(ctxId, newMeta.userId).catch(() => ({}))
+        Object.assign(newMeta.sender, info)
+      } else if (options.user) {
+        const info = await ctx.sender.getStrangerInfo(newMeta.userId).catch(() => ({}))
+        Object.assign(newMeta.sender, info)
+      }
+
       // generate path
       Object.defineProperty(newMeta, '$ctxId', { value: ctxId })
       Object.defineProperty(newMeta, '$ctxType', { value: ctxType })
diff --git a/packages/plugin-common/src/echo.ts b/packages/plugin-common/src/echo.ts
index 2452eed1d2..f8b48454a3 100644
--- a/packages/plugin-common/src/echo.ts
+++ b/packages/plugin-common/src/echo.ts
@@ -1,7 +1,10 @@
 import { MetaTypeMap, Context } from 'koishi-core'
+import { CQCode } from 'koishi-utils'
 
 export default function (ctx: Context) {
   ctx.command('echo <message...>', '向多个上下文发送广播', { authority: 2 })
+    .option('-a, --anonymous', '匿名发送消息')
+    .option('-A, --force-anonymous', '匿名发送消息')
     .option('-u, --user <id>', '指定信息发送的目标 QQ 号', { isString: true, authority: 4 })
     .option('-g, --group <id>', '指定信息发送的目标群号', { isString: true, authority: 4 })
     .option('-d, --discuss <id>', '指定信息发送的目标讨论组号', { isString: true, authority: 4 })
@@ -19,6 +22,12 @@ export default function (ctx: Context) {
         channels[meta.messageType].push(meta.messageType === 'private' ? meta.userId : meta[meta.messageType + 'Id'])
       }
 
+      if (options.forceAnonymous) {
+        message = CQCode.stringify('anonymous') + message
+      } else if (options.anonymous) {
+        message = CQCode.stringify('anonymous', { ignore: true }) + message
+      }
+
       // send messages
       return Promise.all([
         ...channels.private.map(id => ctx.sender.sendPrivateMsgAsync(+id, message)),
diff --git a/packages/plugin-nlp/package.json b/packages/plugin-nlp/package.json
index c4b3bdc676..414d1ecc62 100644
--- a/packages/plugin-nlp/package.json
+++ b/packages/plugin-nlp/package.json
@@ -1,7 +1,7 @@
 {
   "name": "koishi-plugin-nlp",
   "description": "Natural Language Processor for Koishi",
-  "version": "1.0.8",
+  "version": "1.1.0",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "author": "Shigma <1700011071@pku.edu.cn>",
@@ -30,10 +30,10 @@
     "jieba"
   ],
   "devDependencies": {
-    "koishi-test-utils": "^3.2.2"
+    "koishi-test-utils": "^3.3.0"
   },
   "dependencies": {
-    "koishi-core": "^1.11.2",
+    "koishi-core": "^1.12.0",
     "koishi-utils": "^1.0.4",
     "nodejieba": "^2.4.1"
   }
diff --git a/packages/plugin-recorder/package.json b/packages/plugin-recorder/package.json
index a902f5a74d..f1d44d23b7 100644
--- a/packages/plugin-recorder/package.json
+++ b/packages/plugin-recorder/package.json
@@ -1,7 +1,7 @@
 {
   "name": "koishi-plugin-recorder",
   "description": "Save Chat Records for Koishi",
-  "version": "1.0.0-alpha.11",
+  "version": "1.0.0",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "author": "Shigma <1700011071@pku.edu.cn>",
@@ -31,10 +31,10 @@
   ],
   "devDependencies": {
     "del": "^5.1.0",
-    "koishi-test-utils": "^3.2.2"
+    "koishi-test-utils": "^3.3.0"
   },
   "dependencies": {
-    "koishi-core": "^1.11.2",
+    "koishi-core": "^1.12.0",
     "koishi-utils": "^1.0.4"
   }
 }
diff --git a/packages/plugin-schedule/package.json b/packages/plugin-schedule/package.json
index 73df0039b8..0414a9b186 100644
--- a/packages/plugin-schedule/package.json
+++ b/packages/plugin-schedule/package.json
@@ -1,7 +1,7 @@
 {
   "name": "koishi-plugin-schedule",
   "description": "Schedule plugin for Koishi",
-  "version": "1.0.13",
+  "version": "1.1.0",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "author": "Shigma <1700011071@pku.edu.cn>",
@@ -31,12 +31,12 @@
   ],
   "devDependencies": {
     "@types/ms": "^0.7.31",
-    "koishi-database-level": "^1.1.7",
-    "koishi-database-mysql": "^1.1.7",
-    "koishi-test-utils": "^3.2.2"
+    "koishi-database-level": "^1.2.0",
+    "koishi-database-mysql": "^1.2.0",
+    "koishi-test-utils": "^3.3.0"
   },
   "dependencies": {
-    "koishi-core": "^1.11.2",
+    "koishi-core": "^1.12.0",
     "koishi-utils": "^1.0.4",
     "ms": "^2.1.2"
   }
diff --git a/packages/plugin-teach/package.json b/packages/plugin-teach/package.json
index dc02427f52..a9b54c9e12 100644
--- a/packages/plugin-teach/package.json
+++ b/packages/plugin-teach/package.json
@@ -1,7 +1,7 @@
 {
   "name": "koishi-plugin-teach",
   "description": "Teach plugin for Koishi",
-  "version": "0.1.22",
+  "version": "0.2.0",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "author": "Shigma <1700011071@pku.edu.cn>",
@@ -31,12 +31,12 @@
     "conversation"
   ],
   "devDependencies": {
-    "koishi-database-level": "^1.1.7",
-    "koishi-database-mysql": "^1.1.7",
-    "koishi-test-utils": "^3.2.2"
+    "koishi-database-level": "^1.2.0",
+    "koishi-database-mysql": "^1.2.0",
+    "koishi-test-utils": "^3.3.0"
   },
   "dependencies": {
-    "koishi-core": "^1.11.2",
+    "koishi-core": "^1.12.0",
     "koishi-utils": "^1.0.4"
   }
 }
diff --git a/packages/test-utils/package.json b/packages/test-utils/package.json
index 1b419c582d..229a80f42f 100644
--- a/packages/test-utils/package.json
+++ b/packages/test-utils/package.json
@@ -1,7 +1,7 @@
 {
   "name": "koishi-test-utils",
   "description": "Test utilities for Koishi",
-  "version": "3.2.2",
+  "version": "3.3.0",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "files": [
@@ -33,17 +33,17 @@
     "utilities"
   ],
   "peerDependencies": {
-    "jest": "^25.2.1"
+    "jest": "^25.3.0"
   },
   "devDependencies": {
     "@types/debug": "^4.1.5",
-    "@types/jest": "^25.1.4"
+    "@types/jest": "^25.2.1"
   },
   "dependencies": {
     "axios": "^0.19.2",
     "debug": "^4.1.1",
     "get-port": "^5.1.1",
-    "koishi-core": "^1.11.2",
+    "koishi-core": "^1.12.0",
     "koishi-utils": "^1.0.4"
   }
 }
diff --git a/packages/test-utils/src/session.ts b/packages/test-utils/src/session.ts
index 1c9f94658a..494e206919 100644
--- a/packages/test-utils/src/session.ts
+++ b/packages/test-utils/src/session.ts
@@ -7,6 +7,12 @@ export const createMessageMeta = (type: ContextType, message: string, userId: nu
   messageType: type === 'user' ? 'private' : type,
   message,
   userId,
+  sender: {
+    sex: 'unknown',
+    age: 0,
+    userId,
+    nickname: '' + userId,
+  },
 })
 
 export class Session {