Multi-account MCP for Gmail, Calendar, Drive, Docs, and Sheets — 61 tools, token

codebase-memory-mcp

High-performance code intelligence MCP server. Indexes codebases into a persistent knowledge graph — average repo in milliseconds. 158 languages, sub-ms queries, 99% fewer tokens. Single static binary, zero dependencies.

36.7K stars

dbhub

Zero-dependency, token-efficient database MCP server for Postgres, MySQL, SQL Server, MariaDB, SQLite.

3.3K stars

slack-mcp-server

The most powerful MCP Slack Server with no permission requirements, Apps support, GovSlack, DMs, Group DMs and smart history fetch logic.

1.8K stars

discord

Discord messaging bridge with built-in access control. Manage pairing, allowlists, and policy via /discord:access.

32.9K stars

session-report

Generate an explorable HTML report of Claude Code session usage — tokens, cache efficiency, subagents, skills, and the most expensive prompts — from local ~/.claude/projects transcripts.

32.9K stars

telegram

Telegram messaging bridge with built-in access control. Manage pairing, allowlists, and policy via /telegram:access.

32.9K stars

claude-mem

Persistent Context Across Sessions for Every Agent – Captures everything your agent does during sessions, compresses it with AI, and injects relevant context back into future sessions. Works with Claude Code, OpenClaw, Codex, Gemini, Hermes, Copilot, OpenCode + More

88.9K stars

hook-development

This skill should be used when the user asks to "create a hook", "add a PreToolUse/PostToolUse/Stop hook", "validate tool use", "implement prompt-based hooks", "use ${CLAUDE_PLUGIN_ROOT}", "set up event-driven automation", "block dangerous commands", or mentions hook events (PreToolUse, PostToolUse,

32.8K stars

access

Manage Telegram channel access — approve pairings, edit allowlists, set DM/group policy. Use when the user asks to pair, approve someone, check who's allowed, or change policy for the Telegram channel.

32.8K stars

channel-digest

Get a digest of recent activity across multiple Slack channels

migration-status

Parse + summarize the JOB_REPORT.md produced by a prior migration run. Surfaces cell pass/fail/fix counts per task, lists the failing cells, and recommends a next-step skill (fixup-cell, resume, or all-clear).

design-site

Design a WordPress site, starting with a clear design direction and style tokens, then intial page layouts, followed by a full custom theme build with content pages deployed to a local Studio site

claude-security

The dedicated Claude Security orchestrator. Hand it an unattended job — "fully scan this repository and patch what you find; I understand it will use a lot of tokens" — and it runs the whole thing itself: capturing the revision, driving the multi-agent scan through the claude-security:scan workflow,

32.8K stars

bedrock-sme

Amazon Bedrock subject matter expert emphasizing cost-efficient usage patterns. Use when designing Bedrock-based solutions, selecting models, architecting agent workflows, configuring knowledge bases, or when you need practical Bedrock guidance that won't blow the budget.

oauth-oidc-specialist

Expert in OAuth 2.0 and OpenID Connect protocol specifications, security best practices, and compliance. Specializes in flow selection, token security, protocol-level debugging, and standards compliance. Use for protocol design decisions, security reviews, and debugging token/auth flows at the HTTP

Notification

SessionStart

SessionStart nudge directing the agent to delegate data-engineering tasks to altimate-code via the altimate-code skill. The UserPromptSubmit pre-run hook was removed because it double-invoked altimate-code (once at hook time, once when the model fired the skill), doubling token consumption on the al