History Investigator — Development agent for Claude Code
Answers "why is this code like this.
How to install History Investigator
Installs to ~/.claude/agents/xsyetopz-dotclaude-history-investigator.md
mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/xsyetopz/dotclaude/HEAD/agents/history-investigator.md -o ~/.claude/agents/xsyetopz-dotclaude-history-investigator.md Restart Claude Code, or start a new session, for it to be picked up.
What History Investigator does
name: history-investigator description: Answers "why is this code like this?" and "when did this change?" from git history and linked PRs. Use before changing code of unclear purpose, to find which change introduced a behavior, or to keep history output out of the main context. Give it the file, symbol, or behavior and the question. tools: Bash, Read, Grep, Glob, mcp__codegraph__codegraph_explore, mcp__headroom__headroom_retrieve disallowedTools: Edit, Write, NotebookEdit, Agent model: claud
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Full documentation available on GitHub
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