--- title: This Fixed the Greatest Tool Limitation In AI Agents description: MCP context bloat is a well-known problem in AI agent development, where having many MCP tools connected floods the context window with tool descriptions. MCP2... canonical: https://daily.dev/posts/this-fixed-the-greatest-tool-limitation-in-ai-agents-mnbl1ctj1 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: This Fixed the Greatest Tool Limitation In AI Agents | daily.dev og:description: MCP context bloat is a well-known problem in AI agent development, where having many MCP tools connected floods the context window with tool descriptions. MCP2... og:url: https://daily.dev/posts/this-fixed-the-greatest-tool-limitation-in-ai-agents-mnbl1ctj1 og:image: https://api.daily.dev/og/posts/MNBl1Ctj1.png og:image:alt: This Fixed the Greatest Tool Limitation In AI Agents og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # This Fixed the Greatest Tool Limitation In AI Agents **[AI LABS](https://daily.dev/sources/ailabs-393)** · 11 min read · 1 upvotes · 0 comments ## Summary MCP context bloat is a well-known problem in AI agent development, where having many MCP tools connected floods the context window with tool descriptions. MCP2 CLI addresses this by converting MCP servers into bash-executable CLI tools at runtime rather than build time, so tool definitions aren't pre-loaded into the context. It includes a caching layer (1-hour TTL) for performance, handles OpenAPI/REST APIs through the same interface, and keeps sensitive credentials out of command-line arguments via environment variables or secret managers. A practical walkthrough demonstrates connecting Supabase, GitHub, Puppeteer, and Context7 MCPs to Claude Code, using skills to guide the agent on when to use each tool, and piping large MCP outputs to files instead of the context window to further reduce token usage. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Context Engineering for MCP Servers](https://daily.dev/posts/context-engineering-for-mcp-servers-4wx9ee6ee) · Daily Dose of Data Science \| Avi Chawla \| Substack · 2 upvotes · 0 comments --- Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#claude](https://daily.dev/tags/claude), [#cli](https://daily.dev/tags/cli), [#mcp](https://daily.dev/tags/mcp) [View this post on daily.dev](https://daily.dev/posts/this-fixed-the-greatest-tool-limitation-in-ai-agents-mnbl1ctj1) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"This Fixed the Greatest Tool Limitation In AI Agents","url":"https://daily.dev/posts/this-fixed-the-greatest-tool-limitation-in-ai-agents-mnbl1ctj1","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/this-fixed-the-greatest-tool-limitation-in-ai-agents-mnbl1ctj1"},"datePublished":"2026-03-13T15:21:41.702Z","dateModified":"2026-03-15T06:31:21.846Z","description":"MCP context bloat is a well-known problem in AI agent development, where having many MCP tools connected floods the context window with tool descriptions. 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