fastmod - fast codemod for large refactors
Meta's Rust replacement for the original `codemod` tool. Regex find-replace across huge codebases with interactive review on each match.
This entry doesn't have a long-form writeup yet. Follow the source link above for the full context.
Related entries
Qartez MCP - codebase intelligence for AI agents
Rust MCP server that pre-indexes a codebase with PageRank, blast-radius, git co-change, and complexity signals. Agents query the graph instead of grepping files.
abtop - htop for AI coding agents
Rust TUI that monitors Claude Code and Codex sessions: token spend, context window, rate limits, and ports in real time. Like btop but for agent runtimes.
sem - semantic version control CLI
Entity-level diff, blame, graph, and impact analysis for code. 23 languages parsed via tree-sitter so reviews work on functions instead of line ranges.
Obscura - headless browser for AI agents
Rust-native headless browser purpose-built for agent-driven scraping and web automation. Faster cold starts and lower memory than Chromium-based stacks.