Isolated codebase exploration that preserves your main context. Use when you need to understand code structure, trace call paths, or gather evidence before making changes. Spawns an explorer subagent.
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Run score Not tested
See how to installReview the instructions the agent will receive before you install.
Explore the codebase without polluting your main context.
"Spawn an explorer subagent to [describe the research goal]. Return a structured summary with: files examined, relevant symbols, call path trace, and key findings."
The explorer runs in read-only mode in isolated context — your main thread stays clean.
find . -name '*.ts' -path '*/auth/*' | head -20
grep -rn --color=never 'functionName' --include='*.ts' . | head -30
# 1. Find where the function is defined
grep -rn --color=never 'def functionName\|function functionName\|functionName =' . | head -10
# 2. Find all callers
grep -rn --color=never 'functionName(' . | grep -v 'def functionName\|function functionName' | head -20
Use file reading tools — do NOT cat the whole file.
After research, summarize findings:
## Research Summary: <topic>
### Files examined
- path/to/file.ts — reason
### Key symbols found
- SymbolName (file:line) — what it does
### Call path trace
Entry → ServiceA.method → ServiceB.method → DB query
### Key findings
1. Finding 1
2. Finding 2
### Open questions
- ?
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Route a codebase question to the right tool — structural graph, semantic search, or risk analysis. Use when you need to find or understand code without knowing exact file names.
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Auto-configure CLAUDE.md and claude/ knowledge docs for a new project. Use when setting up Brain Bootstrap in a new repository. Discovers the codebase, fills in templates, and writes project-specific configuration.
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Use before any new feature, component, or behavioral change — when you need to explore requirements and design before writing code
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Activate safety guards for the session. Use /careful before critical operations — blocks rm -rf, DROP TABLE, git push --force, kubectl delete namespace, docker system prune via PreToolUse hook.
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Generate a user-facing changelog from git commits — categorize, filter noise, translate to user language. Runs in isolated fork context.
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Save session state before context gets full or before ending. Writes current task state, branch, and loaded docs to claude/tasks/todo.md so the next session can resume cleanly.
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