fix(discord): use cached author.id when DMChannel.recipientId is null

DMChannel.recipientId can be null when client.channels.fetch() returns
a DM channel with a cold cache. The inbound gate correctly uses
msg.author.id, but fetchAllowedChannel relied on recipientId, so
replies to allowlisted DMs intermittently failed with "channel not
allowlisted" after session restart.

Maintain a channelId→userId map populated during inbound handling and
fall back to it when recipientId is null.

Fixes anthropics/claude-code#40576
Fixes anthropics/claude-code#41647

🏠 Remote-Dev: homespace

.claude-plugin/marketplace.json

@@ -7,16 +7,6 @@
     "email": "support@anthropic.com"
   },
   "plugins": [
-    {
-      "name": "adlc",
-      "description": "Agentforce Agent Development Life Cycle — author, discover, scaffold, deploy, test, and optimize .agent files",
-      "category": "development",
-      "source": {
-        "source": "url",
-        "url": "https://github.com/SalesforceAIResearch/agentforce-adlc.git"
-      },
-      "homepage": "https://github.com/SalesforceAIResearch/agentforce-adlc"
-    },
     {
       "name": "adspirer-ads-agent",
       "description": "Cross-platform ad management for Google Ads, Meta Ads, TikTok Ads, and LinkedIn Ads. 91 tools for keyword research, campaign creation, performance analysis, and budget optimization.",
@@ -179,32 +169,6 @@
       "category": "database",
       "homepage": "https://github.com/AzureCosmosDB/cosmosdb-claude-code-plugin"
     },
-    {
-      "name": "base44",
-      "description": "Build and deploy Base44 full-stack apps with CLI project management and JavaScript/TypeScript SDK development skills",
-      "category": "development",
-      "source": {
-        "source": "url",
-        "url": "https://github.com/base44/skills.git",
-        "sha": "c7039b37eca0e2916a565a7395040c00055bcf8b"
-      },
-      "homepage": "https://docs.base44.com"
-    },
-    {
-      "name": "bigdata-com",
-      "description": "Official Bigdata.com plugin providing financial research, analytics, and intelligence tools powered by Bigdata MCP.",
-      "author": {
-        "name": "RavenPack"
-      },
-      "category": "database",
-      "source": {
-        "source": "git-subdir",
-        "url": "Bigdata-com/bigdata-plugins-marketplace",
-        "path": "plugins/bigdata-com",
-        "ref": "main"
-      },
-      "homepage": "https://docs.bigdata.com"
-    },
     {
       "name": "box",
       "description": "Work with your Box content directly from Claude Code — search files, organize folders, collaborate with your team, and use Box AI to answer questions, summarize documents, and extract data without leaving your workflow.",
@@ -901,7 +865,8 @@
       "description": "Nimble web data toolkit — search, extract, map, crawl the web and work with structured data agents",
       "source": {
         "source": "url",
-        "url": "https://github.com/Nimbleway/agent-skills.git"
+        "url": "https://github.com/Nimbleway/agent-skills.git",
+        "sha": "cf391e95bd8ac009e3641f172434a1d130dde7fe"
       },
       "homepage": "https://docs.nimbleway.com/integrations/agent-skills/plugin-installation"
     },
@@ -1304,32 +1269,6 @@
       "category": "productivity",
       "homepage": "https://github.com/anthropics/claude-plugins-official/tree/main/plugins/session-report"
     },
-    {
-      "name": "shopify",
-      "description": "Shopify developer tools for Claude Code — search Shopify docs, generate and validate GraphQL, Liquid, and UI extension code",
-      "author": {
-        "name": "Shopify"
-      },
-      "category": "development",
-      "source": {
-        "source": "url",
-        "url": "https://github.com/Shopify/shopify-plugins.git"
-      },
-      "homepage": "https://shopify.dev/docs/apps/build/devmcp"
-    },
-    {
-      "name": "shopify-ai-toolkit",
-      "description": "Shopify's AI Toolkit provides 18 development skills for building on the Shopify platform, covering documentation search, API schema access, GraphQL and Liquid code validation, Hydrogen storefronts, Polaris UI extensions, store management via CLI, and onboarding guidance for both developers and merchants.",
-      "author": {
-        "name": "Shopify"
-      },
-      "category": "development",
-      "source": {
-        "source": "url",
-        "url": "https://github.com/Shopify/Shopify-AI-Toolkit.git"
-      },
-      "homepage": "https://shopify.dev"
-    },
     {
       "name": "skill-creator",
       "description": "Create new skills, improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, update or optimize an existing skill, run evals to test a skill, or benchmark skill performance with variance analysis.",
@@ -1352,17 +1291,14 @@
       "homepage": "https://github.com/slackapi/slack-mcp-plugin/tree/main"
     },
     {
-      "name": "sonarqube",
-      "description": "Automatically enforce SonarQube code quality and security in the agent coding loop — 7,000+ rules, secrets scanning, agentic analysis, and quality gates across 40+ languages. PostToolUse hooks run analysis after every file edit. Pre-tool secrets scanning prevents 450+ patterns from reaching the LLM. Slash commands give on-demand access to quality gate status, coverage, duplication, and dependency risks. Includes SonarQube CLI, MCP Server, skills, hooks, and slash commands.",
-      "author": {
-        "name": "SonarSource"
-      },
+      "name": "sonarqube-agent-plugins",
+      "description": "Integrate SonarQube code quality and security analysis into Claude Code: namespaced slash commands, a guided skill to setup the SonarQube CLI, and a startup check for CLI wiring. MCP server registration and secrets-scanning hooks are installed by the SonarQube CLI as part of setup.",
       "category": "security",
       "source": {
         "source": "url",
         "url": "https://github.com/SonarSource/sonarqube-agent-plugins.git"
       },
-      "homepage": "https://www.sonarsource.com"
+      "homepage": "https://github.com/SonarSource/sonarqube-agent-plugins"
     },
     {
       "name": "sonatype-guide",

external_plugins/discord/server.ts

@@ -222,6 +222,8 @@ type GateResult =
 const recentSentIds = new Set<string>()
 const RECENT_SENT_CAP = 200
 
+const dmChannelUsers = new Map<string, string>()
+
 function noteSent(id: string): void {
   recentSentIds.add(id)
   if (recentSentIds.size > RECENT_SENT_CAP) {
@@ -404,7 +406,8 @@ async function fetchAllowedChannel(id: string) {
   const ch = await fetchTextChannel(id)
   const access = loadAccess()
   if (ch.type === ChannelType.DM) {
-    if (access.allowFrom.includes(ch.recipientId)) return ch
+    const userId = ch.recipientId ?? dmChannelUsers.get(id)
+    if (userId && access.allowFrom.includes(userId)) return ch
   } else {
     const key = ch.isThread() ? ch.parentId ?? ch.id : ch.id
     if (key in access.groups) return ch
@@ -823,6 +826,10 @@ async function handleInbound(msg: Message): Promise<void> {
 
   const chat_id = msg.channelId
 
+  if (msg.channel.type === ChannelType.DM) {
+    dmChannelUsers.set(chat_id, msg.author.id)
+  }
+
   // Permission-reply intercept: if this looks like "yes xxxxx" for a
   // pending permission request, emit the structured event instead of
   // relaying as chat. The sender is already gate()-approved at this point