We Replaced Every Tool Claude Code Ships With

The Problem: Claude Code's Tools Don't Scale Claude Code ships with a reasonable set of built-in tools: Bash, Read, Write, Edit, Glob, Grep, WebFetch, Task, Plan. For a single agent working on a single task, they're fine. But once you're running a multi-agent system — reviewers spawning sub-reviewers, plans flowing through design-review-implement pipelines — the defaults start breaking: No cross-repo exploration. Want an agent to read another project's code? You need to manually configure permissions. There's no "go explore this OSS repo and answer my question." Summarized web fetching. WebFetch is actually a subagent that summarizes a single page into a haiku-length response. You can't trace links, browse referenced pages, or explore documentation in depth. And it fetches fresh every time — no caching. Text-level editing. The Edit tool has fuzzy matching, which helps — but it's still operating on raw text. When tree-sitter can give you an AST with named symbols, why make the model rep